dj2: assignment_tag is deprecated (#36895)

remove RemovedInDjango20Warning:
assignment_tag() is deprecated. Use simple_tag() instead

combo/apps/assets/templatetags/assets.py

@@ -71,7 +71,7 @@ def asset_css_url(*args, **kwargs):
         return 'none'
 
 
-@register.assignment_tag
+@register.simple_tag
 def get_asset(key):
     try:
         return Asset.objects.get(key=key)

combo/apps/calendar/templatetags/calendar.py

@@ -21,7 +21,7 @@ from django import template
 register = template.Library()
 
 
-@register.assignment_tag
+@register.simple_tag
 def get_day_slot(cal, *args, **kwargs):
     day = kwargs.get('day')
     slot = kwargs.get('slot')

combo/public/templatetags/combo.py

@@ -261,6 +261,6 @@ def name_id(user):
     # is tried with a missing user argument.
     raise VariableDoesNotExist('name_id')
 
-@register.assignment_tag
+@register.simple_tag
 def get_page(page_slug):
     return Page.objects.get(slug=page_slug)