fixed id=null and moving collocations between senses

src/export.py

@@ -48,13 +48,15 @@ def export_entry(entry):
     # if({}) works uncorrectly in transcrypt
     if len(entry.lexical_unit) > 0 and len(entry.lexical_unit['lexemes']) > 0:
         lexunit = doc.createElement("lexicalUnit")
-        lexunit.setAttribute("id", entry.lexical_unit["id"])
+        if(entry.lexical_unit["id"]):
+            lexunit.setAttribute("id", entry.lexical_unit["id"])
         lexunit.setAttribute("type", entry.lexical_unit['type'])
         for lexeme in entry.lexical_unit["lexemes"]:
             lexeme_xml = doc.createElement("lexeme")
-            lexeme_xml.setAttribute("lexical_unit_lexeme_id", lexeme["id"])
+            if(lexeme["id"]):
+                lexeme_xml.setAttribute("lexical_unit_lexeme_id", lexeme["id"])
             lexeme_xml.textContent = lexeme["text"]
-            if len(entry.lexical_unit["lexemes"] > 1):
+            if len(entry.lexical_unit["lexemes"]) > 1:
                 component = doc.createElement('component')
                 component.appendChild(lexeme_xml)
                 lexunit.appendChild(component)
@@ -231,7 +233,6 @@ def export_example_to_entry_xml(example, other_examples = None):
     lexical_unit = doc.createElement("lexicalUnit")
     lexical_unit.setAttribute("type", "MWE")
     head.appendChild(lexical_unit)
-
     if example.inner.other_attributes['structure_id'] != None and len(example.components) <= 3:
         lexical_unit.setAttribute("id", example.inner.other_attributes['structure_id'])
     for comp in example.components:
@@ -241,7 +242,6 @@ def export_example_to_entry_xml(example, other_examples = None):
         lexical_unit.appendChild(comp_xml)
         comp_xml.appendChild(lexeme)
 
-
     grammar = doc.createElement("grammar")
     category = doc.createElement("category")
     grammar.appendChild(category)