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<title>Shopping Cart Class — CodeIgniter 3.1.4 documentation</title>
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<li class="toctree-l2"><a class="reference internal" href="../tutorial/conclusion.html">Conclusion</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../general/index.html">General Topics</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../general/models.html">Models</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/helpers.html">Helpers</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/libraries.html">Using CodeIgniter Libraries</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/creating_libraries.html">Creating Libraries</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/creating_drivers.html">Creating Drivers</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/core_classes.html">Creating Core System Classes</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/ancillary_classes.html">Creating Ancillary Classes</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/hooks.html">Hooks - Extending the Framework Core</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/autoloader.html">Auto-loading Resources</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/common_functions.html">Common Functions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/compatibility_functions.html">Compatibility Functions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/routing.html">URI Routing</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/errors.html">Error Handling</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/caching.html">Caching</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/profiling.html">Profiling Your Application</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/cli.html">Running via the CLI</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/managing_apps.html">Managing your Applications</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/environments.html">Handling Multiple Environments</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/alternative_php.html">Alternate PHP Syntax for View Files</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/security.html">Security</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/styleguide.html">PHP Style Guide</a></li>
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</ul>
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<ul class="current">
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<li class="toctree-l1 current"><a class="reference internal" href="index.html">Libraries</a><ul class="current">
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<li class="toctree-l2"><a class="reference internal" href="benchmark.html">Benchmarking Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="caching.html">Caching Driver</a></li>
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<li class="toctree-l2"><a class="reference internal" href="calendar.html">Calendaring Class</a></li>
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<li class="toctree-l2 current"><a class="current reference internal" href="">Shopping Cart Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="config.html">Config Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="email.html">Email Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="encrypt.html">Encrypt Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="encryption.html">Encryption Library</a></li>
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<li class="toctree-l2"><a class="reference internal" href="file_uploading.html">File Uploading Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="form_validation.html">Form Validation</a></li>
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<li class="toctree-l2"><a class="reference internal" href="ftp.html">FTP Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="image_lib.html">Image Manipulation Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="input.html">Input Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="javascript.html">Javascript Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="language.html">Language Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="loader.html">Loader Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="migration.html">Migrations Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="output.html">Output Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="pagination.html">Pagination Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="parser.html">Template Parser Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="security.html">Security Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="sessions.html">Session Library</a></li>
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<li class="toctree-l2"><a class="reference internal" href="table.html">HTML Table Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="trackback.html">Trackback Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="typography.html">Typography Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="unit_testing.html">Unit Testing Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="uri.html">URI Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="user_agent.html">User Agent Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="xmlrpc.html">XML-RPC and XML-RPC Server Classes</a></li>
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<li class="toctree-l2"><a class="reference internal" href="zip.html">Zip Encoding Class</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../database/index.html">Database Reference</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../database/examples.html">Quick Start: Usage Examples</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/configuration.html">Database Configuration</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/connecting.html">Connecting to a Database</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/queries.html">Running Queries</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/results.html">Generating Query Results</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/helpers.html">Query Helper Functions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/query_builder.html">Query Builder Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/transactions.html">Transactions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/metadata.html">Getting MetaData</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/call_function.html">Custom Function Calls</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/caching.html">Query Caching</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/forge.html">Database Manipulation with Database Forge</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/utilities.html">Database Utilities Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/db_driver_reference.html">Database Driver Reference</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../helpers/index.html">Helpers</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/array_helper.html">Array Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/captcha_helper.html">CAPTCHA Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/cookie_helper.html">Cookie Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/date_helper.html">Date Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/directory_helper.html">Directory Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/download_helper.html">Download Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/email_helper.html">Email Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/file_helper.html">File Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/form_helper.html">Form Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/html_helper.html">HTML Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/inflector_helper.html">Inflector Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/language_helper.html">Language Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/number_helper.html">Number Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/path_helper.html">Path Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/security_helper.html">Security Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/smiley_helper.html">Smiley Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/string_helper.html">String Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/text_helper.html">Text Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/typography_helper.html">Typography Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/url_helper.html">URL Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/xml_helper.html">XML Helper</a></li>
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</ul>
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</li>
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</ul>
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</div>
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<a href="../index.html" class="fa fa-home"> CodeIgniter</a>
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<li class="toctree-l2"><a class="reference internal" href="../installation/upgrading.html">Upgrading From a Previous Version</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../installation/troubleshooting.html">Troubleshooting</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../overview/at_a_glance.html">CodeIgniter at a Glance</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../overview/mvc.html">Model-View-Controller</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../overview/goals.html">Architectural Goals</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../tutorial/create_news_items.html">Create news items</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../tutorial/conclusion.html">Conclusion</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../DCO.html">Developer’s Certificate of Origin 1.1</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../general/index.html">General Topics</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../general/urls.html">CodeIgniter URLs</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/controllers.html">Controllers</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/reserved_names.html">Reserved Names</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/views.html">Views</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/models.html">Models</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/helpers.html">Helpers</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/libraries.html">Using CodeIgniter Libraries</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/creating_libraries.html">Creating Libraries</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/creating_drivers.html">Creating Drivers</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/core_classes.html">Creating Core System Classes</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/ancillary_classes.html">Creating Ancillary Classes</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/hooks.html">Hooks - Extending the Framework Core</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/autoloader.html">Auto-loading Resources</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/common_functions.html">Common Functions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/compatibility_functions.html">Compatibility Functions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/routing.html">URI Routing</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/errors.html">Error Handling</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/caching.html">Caching</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/profiling.html">Profiling Your Application</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/cli.html">Running via the CLI</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/managing_apps.html">Managing your Applications</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/environments.html">Handling Multiple Environments</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/alternative_php.html">Alternate PHP Syntax for View Files</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/security.html">Security</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/styleguide.html">PHP Style Guide</a></li>
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<li class="toctree-l2"><a class="reference internal" href="benchmark.html">Benchmarking Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="caching.html">Caching Driver</a></li>
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<li class="toctree-l2"><a class="reference internal" href="calendar.html">Calendaring Class</a></li>
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<li class="toctree-l2 current"><a class="current reference internal" href="">Shopping Cart Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="config.html">Config Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="email.html">Email Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="encrypt.html">Encrypt Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="encryption.html">Encryption Library</a></li>
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<li class="toctree-l2"><a class="reference internal" href="file_uploading.html">File Uploading Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="form_validation.html">Form Validation</a></li>
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<li class="toctree-l2"><a class="reference internal" href="ftp.html">FTP Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="image_lib.html">Image Manipulation Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="input.html">Input Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="javascript.html">Javascript Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="language.html">Language Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="loader.html">Loader Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="migration.html">Migrations Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="output.html">Output Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="pagination.html">Pagination Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="parser.html">Template Parser Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="security.html">Security Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="sessions.html">Session Library</a></li>
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<li class="toctree-l2"><a class="reference internal" href="table.html">HTML Table Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="trackback.html">Trackback Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="typography.html">Typography Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="unit_testing.html">Unit Testing Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="uri.html">URI Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="user_agent.html">User Agent Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="xmlrpc.html">XML-RPC and XML-RPC Server Classes</a></li>
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<li class="toctree-l2"><a class="reference internal" href="zip.html">Zip Encoding Class</a></li>
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</ul>
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<li class="toctree-l1"><a class="reference internal" href="../database/index.html">Database Reference</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../database/examples.html">Quick Start: Usage Examples</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/configuration.html">Database Configuration</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/connecting.html">Connecting to a Database</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/queries.html">Running Queries</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/results.html">Generating Query Results</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/helpers.html">Query Helper Functions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/query_builder.html">Query Builder Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/transactions.html">Transactions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/metadata.html">Getting MetaData</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/call_function.html">Custom Function Calls</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/caching.html">Query Caching</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/forge.html">Database Manipulation with Database Forge</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/utilities.html">Database Utilities Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/db_driver_reference.html">Database Driver Reference</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../helpers/index.html">Helpers</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/array_helper.html">Array Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/captcha_helper.html">CAPTCHA Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/cookie_helper.html">Cookie Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/date_helper.html">Date Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/directory_helper.html">Directory Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/download_helper.html">Download Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/email_helper.html">Email Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/file_helper.html">File Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/form_helper.html">Form Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/html_helper.html">HTML Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/inflector_helper.html">Inflector Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/language_helper.html">Language Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/number_helper.html">Number Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/path_helper.html">Path Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/security_helper.html">Security Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/smiley_helper.html">Smiley Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/string_helper.html">String Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/text_helper.html">Text Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/typography_helper.html">Typography Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/url_helper.html">URL Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/xml_helper.html">XML Helper</a></li>
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<li><a href="../index.html">Docs</a> »</li>
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<li><a href="index.html">Libraries</a> »</li>
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<li>Shopping Cart Class</li>
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<img title="Classic Layout" alt="classic layout" src="data:image/gif;base64,R0lGODlhFAAUAJEAAAAAADMzM////wAAACH5BAUUAAIALAAAAAAUABQAAAImlI+py+0PU5gRBRDM3DxbWoXis42X13USOLauUIqnlsaH/eY6UwAAOw==" />
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<div role="main" class="document">
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<div class="section" id="shopping-cart-class">
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<h1>Shopping Cart Class<a class="headerlink" href="#shopping-cart-class" title="Permalink to this headline">¶</a></h1>
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<p>The Cart Class permits items to be added to a session that stays active
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while a user is browsing your site. These items can be retrieved and
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displayed in a standard “shopping cart” format, allowing the user to
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update the quantity or remove items from the cart.</p>
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<div class="admonition important">
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<p class="first admonition-title">Important</p>
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<p class="last">The Cart library is DEPRECATED and should not be used.
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It is currently only kept for backwards compatibility.</p>
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</div>
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<p>Please note that the Cart Class ONLY provides the core “cart”
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functionality. It does not provide shipping, credit card authorization,
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or other processing components.</p>
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<div class="contents local topic" id="contents">
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<ul class="simple">
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<li><a class="reference internal" href="#using-the-cart-class" id="id1">Using the Cart Class</a><ul>
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<li><a class="reference internal" href="#initializing-the-shopping-cart-class" id="id2">Initializing the Shopping Cart Class</a></li>
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<li><a class="reference internal" href="#adding-an-item-to-the-cart" id="id3">Adding an Item to The Cart</a></li>
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<li><a class="reference internal" href="#adding-multiple-items-to-the-cart" id="id4">Adding Multiple Items to The Cart</a></li>
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<li><a class="reference internal" href="#displaying-the-cart" id="id5">Displaying the Cart</a></li>
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<li><a class="reference internal" href="#updating-the-cart" id="id6">Updating The Cart</a><ul>
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<li><a class="reference internal" href="#what-is-a-row-id" id="id7">What is a Row ID?</a></li>
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</ul>
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</li>
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</ul>
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</li>
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<li><a class="reference internal" href="#class-reference" id="id8">Class Reference</a></li>
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</ul>
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</div>
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<div class="custom-index container"></div><div class="section" id="using-the-cart-class">
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<h2><a class="toc-backref" href="#id1">Using the Cart Class</a><a class="headerlink" href="#using-the-cart-class" title="Permalink to this headline">¶</a></h2>
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<div class="section" id="initializing-the-shopping-cart-class">
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<h3><a class="toc-backref" href="#id2">Initializing the Shopping Cart Class</a><a class="headerlink" href="#initializing-the-shopping-cart-class" title="Permalink to this headline">¶</a></h3>
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<div class="admonition important">
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<p class="first admonition-title">Important</p>
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<p class="last">The Cart class utilizes CodeIgniter’s <a class="reference internal" href="sessions.html"><em>Session
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Class</em></a> to save the cart information to a database, so
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before using the Cart class you must set up a database table as
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indicated in the <a class="reference internal" href="sessions.html"><em>Session Documentation</em></a>, and set the
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session preferences in your application/config/config.php file to
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utilize a database.</p>
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</div>
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<p>To initialize the Shopping Cart Class in your controller constructor,
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use the <tt class="docutils literal"><span class="pre">$this->load->library()</span></tt> method:</p>
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<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">library</span><span class="p">(</span><span class="s1">'cart'</span><span class="p">);</span>
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</pre></div>
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</div>
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<p>Once loaded, the Cart object will be available using:</p>
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<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">cart</span>
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</pre></div>
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</div>
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<div class="admonition note">
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<p class="first admonition-title">Note</p>
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<p class="last">The Cart Class will load and initialize the Session Class
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automatically, so unless you are using sessions elsewhere in your
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application, you do not need to load the Session class.</p>
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</div>
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</div>
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<div class="section" id="adding-an-item-to-the-cart">
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<h3><a class="toc-backref" href="#id3">Adding an Item to The Cart</a><a class="headerlink" href="#adding-an-item-to-the-cart" title="Permalink to this headline">¶</a></h3>
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<p>To add an item to the shopping cart, simply pass an array with the
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product information to the <tt class="docutils literal"><span class="pre">$this->cart->insert()</span></tt> method, as shown
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below:</p>
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<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
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<span class="s1">'id'</span> <span class="o">=></span> <span class="s1">'sku_123ABC'</span><span class="p">,</span>
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<span class="s1">'qty'</span> <span class="o">=></span> <span class="mi">1</span><span class="p">,</span>
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<span class="s1">'price'</span> <span class="o">=></span> <span class="mf">39.95</span><span class="p">,</span>
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<span class="s1">'name'</span> <span class="o">=></span> <span class="s1">'T-Shirt'</span><span class="p">,</span>
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<span class="s1">'options'</span> <span class="o">=></span> <span class="k">array</span><span class="p">(</span><span class="s1">'Size'</span> <span class="o">=></span> <span class="s1">'L'</span><span class="p">,</span> <span class="s1">'Color'</span> <span class="o">=></span> <span class="s1">'Red'</span><span class="p">)</span>
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<span class="p">);</span>
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<span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">insert</span><span class="p">(</span><span class="nv">$data</span><span class="p">);</span>
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</pre></div>
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</div>
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<div class="admonition important">
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<p class="first admonition-title">Important</p>
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<p class="last">The first four array indexes above (id, qty, price, and
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name) are <strong>required</strong>. If you omit any of them the data will not be
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saved to the cart. The fifth index (options) is optional. It is intended
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to be used in cases where your product has options associated with it.
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Use an array for options, as shown above.</p>
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</div>
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<p>The five reserved indexes are:</p>
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<ul class="simple">
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<li><strong>id</strong> - Each product in your store must have a unique identifier.
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Typically this will be an “sku” or other such identifier.</li>
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<li><strong>qty</strong> - The quantity being purchased.</li>
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<li><strong>price</strong> - The price of the item.</li>
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<li><strong>name</strong> - The name of the item.</li>
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<li><strong>options</strong> - Any additional attributes that are needed to identify
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the product. These must be passed via an array.</li>
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</ul>
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<p>In addition to the five indexes above, there are two reserved words:
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rowid and subtotal. These are used internally by the Cart class, so
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please do NOT use those words as index names when inserting data into
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the cart.</p>
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<p>Your array may contain additional data. Anything you include in your
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array will be stored in the session. However, it is best to standardize
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your data among all your products in order to make displaying the
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information in a table easier.</p>
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<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
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<span class="s1">'id'</span> <span class="o">=></span> <span class="s1">'sku_123ABC'</span><span class="p">,</span>
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<span class="s1">'qty'</span> <span class="o">=></span> <span class="mi">1</span><span class="p">,</span>
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<span class="s1">'price'</span> <span class="o">=></span> <span class="mf">39.95</span><span class="p">,</span>
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<span class="s1">'name'</span> <span class="o">=></span> <span class="s1">'T-Shirt'</span><span class="p">,</span>
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<span class="s1">'coupon'</span> <span class="o">=></span> <span class="s1">'XMAS-50OFF'</span>
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<span class="p">);</span>
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<span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">insert</span><span class="p">(</span><span class="nv">$data</span><span class="p">);</span>
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</pre></div>
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</div>
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<p>The <tt class="docutils literal"><span class="pre">insert()</span></tt> method will return the $rowid if you successfully insert a
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single item.</p>
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</div>
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<div class="section" id="adding-multiple-items-to-the-cart">
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<h3><a class="toc-backref" href="#id4">Adding Multiple Items to The Cart</a><a class="headerlink" href="#adding-multiple-items-to-the-cart" title="Permalink to this headline">¶</a></h3>
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<p>By using a multi-dimensional array, as shown below, it is possible to
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add multiple products to the cart in one action. This is useful in cases
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where you wish to allow people to select from among several items on the
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same page.</p>
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<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
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<span class="k">array</span><span class="p">(</span>
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<span class="s1">'id'</span> <span class="o">=></span> <span class="s1">'sku_123ABC'</span><span class="p">,</span>
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<span class="s1">'qty'</span> <span class="o">=></span> <span class="mi">1</span><span class="p">,</span>
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<span class="s1">'price'</span> <span class="o">=></span> <span class="mf">39.95</span><span class="p">,</span>
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<span class="s1">'name'</span> <span class="o">=></span> <span class="s1">'T-Shirt'</span><span class="p">,</span>
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<span class="s1">'options'</span> <span class="o">=></span> <span class="k">array</span><span class="p">(</span><span class="s1">'Size'</span> <span class="o">=></span> <span class="s1">'L'</span><span class="p">,</span> <span class="s1">'Color'</span> <span class="o">=></span> <span class="s1">'Red'</span><span class="p">)</span>
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<span class="p">),</span>
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<span class="k">array</span><span class="p">(</span>
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<span class="s1">'id'</span> <span class="o">=></span> <span class="s1">'sku_567ZYX'</span><span class="p">,</span>
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<span class="s1">'qty'</span> <span class="o">=></span> <span class="mi">1</span><span class="p">,</span>
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<span class="s1">'price'</span> <span class="o">=></span> <span class="mf">9.95</span><span class="p">,</span>
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<span class="s1">'name'</span> <span class="o">=></span> <span class="s1">'Coffee Mug'</span>
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<span class="p">),</span>
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<span class="k">array</span><span class="p">(</span>
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<span class="s1">'id'</span> <span class="o">=></span> <span class="s1">'sku_965QRS'</span><span class="p">,</span>
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<span class="s1">'qty'</span> <span class="o">=></span> <span class="mi">1</span><span class="p">,</span>
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<span class="s1">'price'</span> <span class="o">=></span> <span class="mf">29.95</span><span class="p">,</span>
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<span class="s1">'name'</span> <span class="o">=></span> <span class="s1">'Shot Glass'</span>
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<span class="p">)</span>
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<span class="p">);</span>
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<span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">insert</span><span class="p">(</span><span class="nv">$data</span><span class="p">);</span>
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</pre></div>
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</div>
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</div>
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<div class="section" id="displaying-the-cart">
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<h3><a class="toc-backref" href="#id5">Displaying the Cart</a><a class="headerlink" href="#displaying-the-cart" title="Permalink to this headline">¶</a></h3>
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<p>To display the cart you will create a <a class="reference internal" href="../general/views.html"><em>view
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file</em></a> with code similar to the one shown below.</p>
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<p>Please note that this example uses the <a class="reference internal" href="../helpers/form_helper.html"><em>form
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helper</em></a>.</p>
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<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="o"><?</span><span class="nx">php</span> <span class="k">echo</span> <span class="nx">form_open</span><span class="p">(</span><span class="s1">'path/to/controller/update/method'</span><span class="p">);</span> <span class="cp">?></span>
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<span class="p"><</span><span class="nt">table</span> <span class="na">cellpadding</span><span class="o">=</span><span class="s">"6"</span> <span class="na">cellspacing</span><span class="o">=</span><span class="s">"1"</span> <span class="na">style</span><span class="o">=</span><span class="s">"width:100%"</span> <span class="na">border</span><span class="o">=</span><span class="s">"0"</span><span class="p">></span>
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<span class="p"><</span><span class="nt">tr</span><span class="p">></span>
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<span class="p"><</span><span class="nt">th</span><span class="p">></span>QTY<span class="p"></</span><span class="nt">th</span><span class="p">></span>
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<span class="p"><</span><span class="nt">th</span><span class="p">></span>Item Description<span class="p"></</span><span class="nt">th</span><span class="p">></span>
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<span class="p"><</span><span class="nt">th</span> <span class="na">style</span><span class="o">=</span><span class="s">"text-align:right"</span><span class="p">></span>Item Price<span class="p"></</span><span class="nt">th</span><span class="p">></span>
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<span class="p"><</span><span class="nt">th</span> <span class="na">style</span><span class="o">=</span><span class="s">"text-align:right"</span><span class="p">></span>Sub-Total<span class="p"></</span><span class="nt">th</span><span class="p">></span>
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<span class="p"></</span><span class="nt">tr</span><span class="p">></span>
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<span class="cp"><?php</span> <span class="nv">$i</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span> <span class="cp">?></span>
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<span class="cp"><?php</span> <span class="k">foreach</span> <span class="p">(</span><span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">contents</span><span class="p">()</span> <span class="k">as</span> <span class="nv">$items</span><span class="p">)</span><span class="o">:</span> <span class="cp">?></span>
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<span class="cp"><?php</span> <span class="k">echo</span> <span class="nx">form_hidden</span><span class="p">(</span><span class="nv">$i</span><span class="o">.</span><span class="s1">'[rowid]'</span><span class="p">,</span> <span class="nv">$items</span><span class="p">[</span><span class="s1">'rowid'</span><span class="p">]);</span> <span class="cp">?></span>
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<span class="p"><</span><span class="nt">tr</span><span class="p">></span>
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<span class="p"><</span><span class="nt">td</span><span class="p">></span><span class="cp"><?php</span> <span class="k">echo</span> <span class="nx">form_input</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">'name'</span> <span class="o">=></span> <span class="nv">$i</span><span class="o">.</span><span class="s1">'[qty]'</span><span class="p">,</span> <span class="s1">'value'</span> <span class="o">=></span> <span class="nv">$items</span><span class="p">[</span><span class="s1">'qty'</span><span class="p">],</span> <span class="s1">'maxlength'</span> <span class="o">=></span> <span class="s1">'3'</span><span class="p">,</span> <span class="s1">'size'</span> <span class="o">=></span> <span class="s1">'5'</span><span class="p">));</span> <span class="cp">?></span><span class="p"></</span><span class="nt">td</span><span class="p">></span>
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<span class="p"><</span><span class="nt">td</span><span class="p">></span>
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<span class="cp"><?php</span> <span class="k">echo</span> <span class="nv">$items</span><span class="p">[</span><span class="s1">'name'</span><span class="p">];</span> <span class="cp">?></span>
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<span class="cp"><?php</span> <span class="k">if</span> <span class="p">(</span><span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">has_options</span><span class="p">(</span><span class="nv">$items</span><span class="p">[</span><span class="s1">'rowid'</span><span class="p">])</span> <span class="o">==</span> <span class="k">TRUE</span><span class="p">)</span><span class="o">:</span> <span class="cp">?></span>
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<span class="p"><</span><span class="nt">p</span><span class="p">></span>
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<span class="cp"><?php</span> <span class="k">foreach</span> <span class="p">(</span><span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">product_options</span><span class="p">(</span><span class="nv">$items</span><span class="p">[</span><span class="s1">'rowid'</span><span class="p">])</span> <span class="k">as</span> <span class="nv">$option_name</span> <span class="o">=></span> <span class="nv">$option_value</span><span class="p">)</span><span class="o">:</span> <span class="cp">?></span>
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|
<span class="p"><</span><span class="nt">strong</span><span class="p">></span><span class="cp"><?php</span> <span class="k">echo</span> <span class="nv">$option_name</span><span class="p">;</span> <span class="cp">?></span>:<span class="p"></</span><span class="nt">strong</span><span class="p">></span> <span class="cp"><?php</span> <span class="k">echo</span> <span class="nv">$option_value</span><span class="p">;</span> <span class="cp">?></span><span class="p"><</span><span class="nt">br</span> <span class="p">/></span>
|
|
|
|
|
|
<span class="cp"><?php</span> <span class="k">endforeach</span><span class="p">;</span> <span class="cp">?></span>
|
|
|
<span class="p"></</span><span class="nt">p</span><span class="p">></span>
|
|
|
|
|
|
<span class="cp"><?php</span> <span class="k">endif</span><span class="p">;</span> <span class="cp">?></span>
|
|
|
|
|
|
<span class="p"></</span><span class="nt">td</span><span class="p">></span>
|
|
|
<span class="p"><</span><span class="nt">td</span> <span class="na">style</span><span class="o">=</span><span class="s">"text-align:right"</span><span class="p">></span><span class="cp"><?php</span> <span class="k">echo</span> <span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">format_number</span><span class="p">(</span><span class="nv">$items</span><span class="p">[</span><span class="s1">'price'</span><span class="p">]);</span> <span class="cp">?></span><span class="p"></</span><span class="nt">td</span><span class="p">></span>
|
|
|
<span class="p"><</span><span class="nt">td</span> <span class="na">style</span><span class="o">=</span><span class="s">"text-align:right"</span><span class="p">></span>$<span class="cp"><?php</span> <span class="k">echo</span> <span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">format_number</span><span class="p">(</span><span class="nv">$items</span><span class="p">[</span><span class="s1">'subtotal'</span><span class="p">]);</span> <span class="cp">?></span><span class="p"></</span><span class="nt">td</span><span class="p">></span>
|
|
|
<span class="p"></</span><span class="nt">tr</span><span class="p">></span>
|
|
|
|
|
|
<span class="cp"><?php</span> <span class="nv">$i</span><span class="o">++</span><span class="p">;</span> <span class="cp">?></span>
|
|
|
|
|
|
<span class="cp"><?php</span> <span class="k">endforeach</span><span class="p">;</span> <span class="cp">?></span>
|
|
|
|
|
|
<span class="p"><</span><span class="nt">tr</span><span class="p">></span>
|
|
|
<span class="p"><</span><span class="nt">td</span> <span class="na">colspan</span><span class="o">=</span><span class="s">"2"</span><span class="p">></span> <span class="p"></</span><span class="nt">td</span><span class="p">></span>
|
|
|
<span class="p"><</span><span class="nt">td</span> <span class="na">class</span><span class="o">=</span><span class="s">"right"</span><span class="p">><</span><span class="nt">strong</span><span class="p">></span>Total<span class="p"></</span><span class="nt">strong</span><span class="p">></</span><span class="nt">td</span><span class="p">></span>
|
|
|
<span class="p"><</span><span class="nt">td</span> <span class="na">class</span><span class="o">=</span><span class="s">"right"</span><span class="p">></span>$<span class="cp"><?php</span> <span class="k">echo</span> <span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">format_number</span><span class="p">(</span><span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">total</span><span class="p">());</span> <span class="cp">?></span><span class="p"></</span><span class="nt">td</span><span class="p">></span>
|
|
|
<span class="p"></</span><span class="nt">tr</span><span class="p">></span>
|
|
|
|
|
|
<span class="p"></</span><span class="nt">table</span><span class="p">></span>
|
|
|
|
|
|
<span class="p"><</span><span class="nt">p</span><span class="p">></span><span class="cp"><?php</span> <span class="k">echo</span> <span class="nx">form_submit</span><span class="p">(</span><span class="s1">''</span><span class="p">,</span> <span class="s1">'Update your Cart'</span><span class="p">);</span> <span class="cp">?></span><span class="p"></</span><span class="nt">p</span><span class="p">></span>
|
|
|
</pre></div>
|
|
|
</div>
|
|
|
</div>
|
|
|
<div class="section" id="updating-the-cart">
|
|
|
<h3><a class="toc-backref" href="#id6">Updating The Cart</a><a class="headerlink" href="#updating-the-cart" title="Permalink to this headline">¶</a></h3>
|
|
|
<p>To update the information in your cart, you must pass an array
|
|
|
containing the Row ID and one or more pre-defined properties to the
|
|
|
<tt class="docutils literal"><span class="pre">$this->cart->update()</span></tt> method.</p>
|
|
|
<div class="admonition note">
|
|
|
<p class="first admonition-title">Note</p>
|
|
|
<p class="last">If the quantity is set to zero, the item will be removed from
|
|
|
the cart.</p>
|
|
|
</div>
|
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
|
|
|
<span class="s1">'rowid'</span> <span class="o">=></span> <span class="s1">'b99ccdf16028f015540f341130b6d8ec'</span><span class="p">,</span>
|
|
|
<span class="s1">'qty'</span> <span class="o">=></span> <span class="mi">3</span>
|
|
|
<span class="p">);</span>
|
|
|
|
|
|
<span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">update</span><span class="p">(</span><span class="nv">$data</span><span class="p">);</span>
|
|
|
|
|
|
<span class="c1">// Or a multi-dimensional array</span>
|
|
|
|
|
|
<span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
|
|
|
<span class="k">array</span><span class="p">(</span>
|
|
|
<span class="s1">'rowid'</span> <span class="o">=></span> <span class="s1">'b99ccdf16028f015540f341130b6d8ec'</span><span class="p">,</span>
|
|
|
<span class="s1">'qty'</span> <span class="o">=></span> <span class="mi">3</span>
|
|
|
<span class="p">),</span>
|
|
|
<span class="k">array</span><span class="p">(</span>
|
|
|
<span class="s1">'rowid'</span> <span class="o">=></span> <span class="s1">'xw82g9q3r495893iajdh473990rikw23'</span><span class="p">,</span>
|
|
|
<span class="s1">'qty'</span> <span class="o">=></span> <span class="mi">4</span>
|
|
|
<span class="p">),</span>
|
|
|
<span class="k">array</span><span class="p">(</span>
|
|
|
<span class="s1">'rowid'</span> <span class="o">=></span> <span class="s1">'fh4kdkkkaoe30njgoe92rkdkkobec333'</span><span class="p">,</span>
|
|
|
<span class="s1">'qty'</span> <span class="o">=></span> <span class="mi">2</span>
|
|
|
<span class="p">)</span>
|
|
|
<span class="p">);</span>
|
|
|
|
|
|
<span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">update</span><span class="p">(</span><span class="nv">$data</span><span class="p">);</span>
|
|
|
</pre></div>
|
|
|
</div>
|
|
|
<p>You may also update any property you have previously defined when
|
|
|
inserting the item such as options, price or other custom fields.</p>
|
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
|
|
|
<span class="s1">'rowid'</span> <span class="o">=></span> <span class="s1">'b99ccdf16028f015540f341130b6d8ec'</span><span class="p">,</span>
|
|
|
<span class="s1">'qty'</span> <span class="o">=></span> <span class="mi">1</span><span class="p">,</span>
|
|
|
<span class="s1">'price'</span> <span class="o">=></span> <span class="mf">49.95</span><span class="p">,</span>
|
|
|
<span class="s1">'coupon'</span> <span class="o">=></span> <span class="k">NULL</span>
|
|
|
<span class="p">);</span>
|
|
|
|
|
|
<span class="nv">$this</span><span class="o">-></span><span class="na">cart</span><span class="o">-></span><span class="na">update</span><span class="p">(</span><span class="nv">$data</span><span class="p">);</span>
|
|
|
</pre></div>
|
|
|
</div>
|
|
|
<div class="section" id="what-is-a-row-id">
|
|
|
<h4><a class="toc-backref" href="#id7">What is a Row ID?</a><a class="headerlink" href="#what-is-a-row-id" title="Permalink to this headline">¶</a></h4>
|
|
|
<p>The row ID is a unique identifier that is generated by the cart code
|
|
|
when an item is added to the cart. The reason a unique ID is created
|
|
|
is so that identical products with different options can be managed
|
|
|
by the cart.</p>
|
|
|
<p>For example, let’s say someone buys two identical t-shirts (same product
|
|
|
ID), but in different sizes. The product ID (and other attributes) will
|
|
|
be identical for both sizes because it’s the same shirt. The only
|
|
|
difference will be the size. The cart must therefore have a means of
|
|
|
identifying this difference so that the two sizes of shirts can be
|
|
|
managed independently. It does so by creating a unique “row ID” based on
|
|
|
the product ID and any options associated with it.</p>
|
|
|
<p>In nearly all cases, updating the cart will be something the user does
|
|
|
via the “view cart” page, so as a developer, it is unlikely that you
|
|
|
will ever have to concern yourself with the “row ID”, other than making
|
|
|
sure your “view cart” page contains this information in a hidden form
|
|
|
field, and making sure it gets passed to the <tt class="docutils literal"><span class="pre">update()</span></tt> method when
|
|
|
the update form is submitted. Please examine the construction of the
|
|
|
“view cart” page above for more information.</p>
|
|
|
</div>
|
|
|
</div>
|
|
|
</div>
|
|
|
<div class="section" id="class-reference">
|
|
|
<h2><a class="toc-backref" href="#id8">Class Reference</a><a class="headerlink" href="#class-reference" title="Permalink to this headline">¶</a></h2>
|
|
|
<dl class="class">
|
|
|
<dt id="CI_Cart">
|
|
|
<em class="property">class </em><tt class="descname">CI_Cart</tt><a class="headerlink" href="#CI_Cart" title="Permalink to this definition">¶</a></dt>
|
|
|
<dd><dl class="attribute">
|
|
|
<dt>
|
|
|
<tt class="descname">$product_id_rules = '.a-z0-9_-'</tt></dt>
|
|
|
<dd><p>These are the regular expression rules that we use to validate the product
|
|
|
ID - alpha-numeric, dashes, underscores, or periods by default</p>
|
|
|
</dd></dl>
|
|
|
|
|
|
<dl class="attribute">
|
|
|
<dt>
|
|
|
<tt class="descname">$product_name_rules = 'w -.:'</tt></dt>
|
|
|
<dd><p>These are the regular expression rules that we use to validate the product ID and product name - alpha-numeric, dashes, underscores, colons or periods by
|
|
|
default</p>
|
|
|
</dd></dl>
|
|
|
|
|
|
<dl class="attribute">
|
|
|
<dt>
|
|
|
<tt class="descname">$product_name_safe = TRUE</tt></dt>
|
|
|
<dd><p>Whether or not to only allow safe product names. Default TRUE.</p>
|
|
|
</dd></dl>
|
|
|
|
|
|
<dl class="method">
|
|
|
<dt id="CI_Cart::insert">
|
|
|
<tt class="descname">insert</tt><big>(</big><span class="optional">[</span><em>$items = array()</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#CI_Cart::insert" title="Permalink to this definition">¶</a></dt>
|
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|
|
<col class="field-name" />
|
|
|
<col class="field-body" />
|
|
|
<tbody valign="top">
|
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|
|
<li><strong>$items</strong> (<em>array</em>) – Items to insert into the cart</li>
|
|
|
</ul>
|
|
|
</td>
|
|
|
</tr>
|
|
|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">TRUE on success, FALSE on failure</p>
|
|
|
</td>
|
|
|
</tr>
|
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">bool</p>
|
|
|
</td>
|
|
|
</tr>
|
|
|
</tbody>
|
|
|
</table>
|
|
|
<p>Insert items into the cart and save it to the session table. Returns TRUE
|
|
|
on success and FALSE on failure.</p>
|
|
|
</dd></dl>
|
|
|
|
|
|
<dl class="method">
|
|
|
<dt id="CI_Cart::update">
|
|
|
<tt class="descname">update</tt><big>(</big><span class="optional">[</span><em>$items = array()</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#CI_Cart::update" title="Permalink to this definition">¶</a></dt>
|
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|
|
<col class="field-name" />
|
|
|
<col class="field-body" />
|
|
|
<tbody valign="top">
|
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|
|
<li><strong>$items</strong> (<em>array</em>) – Items to update in the cart</li>
|
|
|
</ul>
|
|
|
</td>
|
|
|
</tr>
|
|
|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">TRUE on success, FALSE on failure</p>
|
|
|
</td>
|
|
|
</tr>
|
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">bool</p>
|
|
|
</td>
|
|
|
</tr>
|
|
|
</tbody>
|
|
|
</table>
|
|
|
<p>This method permits changing the properties of a given item.
|
|
|
Typically it is called from the “view cart” page if a user makes changes
|
|
|
to the quantity before checkout. That array must contain the rowid
|
|
|
for each item.</p>
|
|
|
</dd></dl>
|
|
|
|
|
|
<dl class="method">
|
|
|
<dt id="CI_Cart::remove">
|
|
|
<tt class="descname">remove</tt><big>(</big><em>$rowid</em><big>)</big><a class="headerlink" href="#CI_Cart::remove" title="Permalink to this definition">¶</a></dt>
|
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|
|
<col class="field-name" />
|
|
|
<col class="field-body" />
|
|
|
<tbody valign="top">
|
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|
|
<li><strong>$rowid</strong> (<em>int</em>) – ID of the item to remove from the cart</li>
|
|
|
</ul>
|
|
|
</td>
|
|
|
</tr>
|
|
|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">TRUE on success, FALSE on failure</p>
|
|
|
</td>
|
|
|
</tr>
|
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">bool</p>
|
|
|
</td>
|
|
|
</tr>
|
|
|
</tbody>
|
|
|
</table>
|
|
|
<p>Allows you to remove an item from the shopping cart by passing it the
|
|
|
<tt class="docutils literal"><span class="pre">$rowid</span></tt>.</p>
|
|
|
</dd></dl>
|
|
|
|
|
|
<dl class="method">
|
|
|
<dt id="CI_Cart::total">
|
|
|
<tt class="descname">total</tt><big>(</big><big>)</big><a class="headerlink" href="#CI_Cart::total" title="Permalink to this definition">¶</a></dt>
|
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|
|
<col class="field-name" />
|
|
|
<col class="field-body" />
|
|
|
<tbody valign="top">
|
|
|
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">Total amount</td>
|
|
|
</tr>
|
|
|
<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">int</td>
|
|
|
</tr>
|
|
|
</tbody>
|
|
|
</table>
|
|
|
<p>Displays the total amount in the cart.</p>
|
|
|
</dd></dl>
|
|
|
|
|
|
<dl class="method">
|
|
|
<dt id="CI_Cart::total_items">
|
|
|
<tt class="descname">total_items</tt><big>(</big><big>)</big><a class="headerlink" href="#CI_Cart::total_items" title="Permalink to this definition">¶</a></dt>
|
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|
|
<col class="field-name" />
|
|
|
<col class="field-body" />
|
|
|
<tbody valign="top">
|
|
|
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">Total amount of items in the cart</td>
|
|
|
</tr>
|
|
|
<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">int</td>
|
|
|
</tr>
|
|
|
</tbody>
|
|
|
</table>
|
|
|
<p>Displays the total number of items in the cart.</p>
|
|
|
</dd></dl>
|
|
|
|
|
|
<dl class="method">
|
|
|
<dt id="CI_Cart::contents">
|
|
|
<tt class="descname">contents</tt><big>(</big><span class="optional">[</span><em>$newest_first = FALSE</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#CI_Cart::contents" title="Permalink to this definition">¶</a></dt>
|
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|
|
<col class="field-name" />
|
|
|
<col class="field-body" />
|
|
|
<tbody valign="top">
|
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|
|
<li><strong>$newest_first</strong> (<em>bool</em>) – Whether to order the array with newest items first</li>
|
|
|
</ul>
|
|
|
</td>
|
|
|
</tr>
|
|
|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">An array of cart contents</p>
|
|
|
</td>
|
|
|
</tr>
|
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">array</p>
|
|
|
</td>
|
|
|
</tr>
|
|
|
</tbody>
|
|
|
</table>
|
|
|
<p>Returns an array containing everything in the cart. You can sort the
|
|
|
order by which the array is returned by passing it TRUE where the contents
|
|
|
will be sorted from newest to oldest, otherwise it is sorted from oldest
|
|
|
to newest.</p>
|
|
|
</dd></dl>
|
|
|
|
|
|
<dl class="method">
|
|
|
<dt id="CI_Cart::get_item">
|
|
|
<tt class="descname">get_item</tt><big>(</big><em>$row_id</em><big>)</big><a class="headerlink" href="#CI_Cart::get_item" title="Permalink to this definition">¶</a></dt>
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<dd><table class="docutils field-list" frame="void" rules="none">
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<col class="field-name" />
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<col class="field-body" />
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<tbody valign="top">
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<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
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<li><strong>$row_id</strong> (<em>int</em>) – Row ID to retrieve</li>
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</ul>
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</td>
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</tr>
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<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Array of item data</p>
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</td>
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</tr>
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<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">array</p>
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</td>
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</tr>
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</tbody>
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</table>
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<p>Returns an array containing data for the item matching the specified row
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ID, or FALSE if no such item exists.</p>
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</dd></dl>
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<dl class="method">
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<dt id="CI_Cart::has_options">
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<tt class="descname">has_options</tt><big>(</big><em>$row_id = ''</em><big>)</big><a class="headerlink" href="#CI_Cart::has_options" title="Permalink to this definition">¶</a></dt>
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<dd><table class="docutils field-list" frame="void" rules="none">
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<col class="field-name" />
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<col class="field-body" />
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<tbody valign="top">
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<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
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<li><strong>$row_id</strong> (<em>int</em>) – Row ID to inspect</li>
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</ul>
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</td>
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</tr>
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<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">TRUE if options exist, FALSE otherwise</p>
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</td>
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</tr>
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<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">bool</p>
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</td>
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</tr>
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</tbody>
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</table>
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<p>Returns TRUE (boolean) if a particular row in the cart contains options.
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This method is designed to be used in a loop with <tt class="docutils literal"><span class="pre">contents()</span></tt>, since
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you must pass the rowid to this method, as shown in the Displaying
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the Cart example above.</p>
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</dd></dl>
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<dl class="method">
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<dt id="CI_Cart::product_options">
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<tt class="descname">product_options</tt><big>(</big><span class="optional">[</span><em>$row_id = ''</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#CI_Cart::product_options" title="Permalink to this definition">¶</a></dt>
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<dd><table class="docutils field-list" frame="void" rules="none">
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|
<col class="field-name" />
|
|
|
<col class="field-body" />
|
|
|
<tbody valign="top">
|
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|
|
<li><strong>$row_id</strong> (<em>int</em>) – Row ID</li>
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|
|
</ul>
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|
</td>
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</tr>
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|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Array of product options</p>
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|
</td>
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|
</tr>
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|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">array</p>
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</td>
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</tr>
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</tbody>
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</table>
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<p>Returns an array of options for a particular product. This method is
|
|
|
designed to be used in a loop with <tt class="docutils literal"><span class="pre">contents()</span></tt>, since you
|
|
|
must pass the rowid to this method, as shown in the Displaying the
|
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|
Cart example above.</p>
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|
</dd></dl>
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|
<dl class="method">
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|
|
<dt id="CI_Cart::destroy">
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|
<tt class="descname">destroy</tt><big>(</big><big>)</big><a class="headerlink" href="#CI_Cart::destroy" title="Permalink to this definition">¶</a></dt>
|
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|
|
<col class="field-name" />
|
|
|
<col class="field-body" />
|
|
|
<tbody valign="top">
|
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body">void</td>
|
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|
</tr>
|
|
|
</tbody>
|
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</table>
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|
<p>Permits you to destroy the cart. This method will likely be called
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|
|
when you are finished processing the customer’s order.</p>
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|
</dd></dl>
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</dd></dl>
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<div role="contentinfo">
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<p>
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© Copyright 2014 - 2017, British Columbia Institute of Technology.
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Last updated on Mar 20, 2017.
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