misc: add support for not equal operator to lazy field vars (#30044)

tests/test_formdata.py

@@ -751,6 +751,9 @@ def test_lazy_templates(pub, variable_test_data):
     tmpl = Template('{{form_user_name_identifier_0}}')
     assert tmpl.render(context) == pub.user_class.select()[0].name_identifiers[0]
 
+    tmpl = Template('{% if form_user_email == "bar@localhost" %}HELLO{% endif %}')
+    assert tmpl.render(context) == 'HELLO'
+
 def test_lazy_ezt_templates(pub, variable_test_data):
     context = pub.substitutions.get_context_variables(mode='lazy')
     tmpl = Template('[form_var_foo_foo]')
@@ -759,6 +762,33 @@ def test_lazy_ezt_templates(pub, variable_test_data):
     tmpl = Template('[is form_var_foo_foo "bar"]HELLO[else]BYE[end]')
     assert tmpl.render(context) == 'HELLO'
 
+def test_lazy_formdata_fields(pub):
+    formdef = FormDef()
+    formdef.name = 'foobar'
+    formdef.url_name = 'foobar'
+    formdef.fields = [
+        fields.StringField(id='0', label='string', varname='string'),
+        fields.ItemField(id='1', label='item', varname='item', items=['Foo', 'Bar'])
+    ]
+    formdef.store()
+
+    formdata = formdef.data_class()()
+    formdata.data = {'0': 'Foo', '1': 'Foo', '1_display': 'Foo'}
+    formdata.store()
+
+    pub.substitutions.feed(formdata)
+    context = pub.substitutions.get_context_variables(mode='lazy')
+
+    tmpl = Template('{% if form_var_string == "Foo" %}HELLO{% endif %}')
+    assert tmpl.render(context) == 'HELLO'
+    tmpl = Template('{% if form_var_item == "Foo" %}HELLO{% endif %}')
+    assert tmpl.render(context) == 'HELLO'
+
+    tmpl = Template('{% if form_var_string != "Foo" %}HELLO{% endif %}')
+    assert tmpl.render(context) == ''
+    tmpl = Template('{% if form_var_item != "Foo" %}HELLO{% endif %}')
+    assert tmpl.render(context) == ''
+
 def test_form_digest_date(pub):
     formdef = FormDef()
     formdef.name = 'foobar'

wcs/variables.py

@@ -369,6 +369,9 @@ class LazyFieldVar(object):
     def __eq__(self, other):
         return unicode(self) == unicode(other)
 
+    def __ne__(self, other):
+        return unicode(self) != unicode(other)
+
     def __getitem__(self, key):
         if isinstance(key, int):
             return self.get_value()[key]