Add select2 customizations to more forms

aleksis/core/forms.py

@@ -140,19 +140,25 @@ class EditGroupForm(SchoolTermRelatedExtensibleForm):
                     "first_name__icontains",
                     "last_name__icontains",
                     "short_name__icontains",
-                ]
+                ],
+                attrs={"data-minimum-input-length": 0, "class": "browser-default"},
             ),
             "owners": ModelSelect2MultipleWidget(
                 search_fields=[
                     "first_name__icontains",
                     "last_name__icontains",
                     "short_name__icontains",
-                ]
+                ],
+                attrs={"data-minimum-input-length": 0, "class": "browser-default"},
             ),
             "parent_groups": ModelSelect2MultipleWidget(
-                search_fields=["name__icontains", "short_name__icontains"]
+                search_fields=["name__icontains", "short_name__icontains"],
+                attrs={"data-minimum-input-length": 0, "class": "browser-default"},
+            ),
+            "additional_fields": ModelSelect2MultipleWidget(
+                search_fields=["title__icontains",],
+                attrs={"data-minimum-input-length": 0, "class": "browser-default"},
             ),
-            "additional_fields": ModelSelect2MultipleWidget(search_fields=["title__icontains",]),
         }
 
 
@@ -281,7 +287,14 @@ class AnnouncementForm(ExtensibleForm):
 class ChildGroupsForm(forms.Form):
     """Inline form for group editing to select child groups."""
 
-    child_groups = forms.ModelMultipleChoiceField(queryset=Group.objects.all(), widget=ModelSelect2MultipleWidget)
+    child_groups = forms.ModelMultipleChoiceField(queryset=Group.objects.all(), widget=ModelSelect2MultipleWidget(
+            search_fields=[
+                "name__icontains",
+                "short_name__icontains",
+            ],
+            attrs={"data-minimum-input-length": 0, "class": "browser-default"},
+        )
+    )
 
 
 class SitePreferenceForm(PreferenceForm):

aleksis/core/templates/core/group/edit.html

 {# -*- engine:django -*- #}
 
 {% extends "core/base.html" %}
-{% load material_form i18n %}
+{% load material_form i18n any_js %}
+
+{% block extra_head %}
+    {{ edit_group_form.media.css }}
+    {% include_css "select2-materialize" %}
+{% endblock %}
 
 {% block browser_title %}{% blocktrans %}Edit group{% endblocktrans %}{% endblock %}
 {% block page_title %}{% blocktrans %}Edit group{% endblocktrans %}{% endblock %}
@@ -13,5 +18,7 @@
     {% form form=edit_group_form %}{% endform %}
     {% include "core/partials/save_button.html" %}
   </form>
+  {% include_js "select2-materialize" %}
+  {{ edit_group_form.media.js }}
 
 {% endblock %}