no need for Gallery:

content/admin.py

@@ -68,7 +68,7 @@ class ContentAdmin(admin.ModelAdmin):
     list_display = ('id', '__str__', 'datestart', 'shortname', 'type')
     list_filter = ['datestart', 'type']
     search_fields = ['title', 'body', 'header', 'shortname']
-    raw_id_fields = ['photo']
+    raw_id_fields = ['photo', 'gallery']
     inlines = [FileInline, LinkInline]
     formfield_overrides = {
         models.TextField: {'widget': MaxLengthAdminMarkdownxWidget},

content/templates/gallery.html

@@ -1,5 +1,5 @@
 {% if gallery %}
-    <h6><strong>Gallery: {{gallery.title}}</strong></h6>
+    <h6><strong>{{gallery.title}}</strong></h6>
     <ul class="clearing-thumbs" data-clearing>
     {% for photo in gallery.public %}
         <li><a href="{{ gallery.get_absolute_url }}#{{forloop.counter}}"><img src="{{ photo.get_thumbnail_url }}"></a></li>

content/views.py

@@ -230,7 +230,14 @@ def contact(request):
 
 def limit_content(content, q):
     if q:
-        content = content.filter(Q(body__icontains=q) | Q(title__icontains=q) | Q(header__icontains=q)).distinct()
+        content = content.filter(
+            Q(body__icontains=q)
+            | Q(title__icontains=q)
+            | Q(header__icontains=q)
+            | Q(teaser__icontains=q)
+            | Q(schedule__icontains=q)
+            | Q(place__icontains=q)
+        ).distinct()
     return content