Replace django-moderation with CaseStudy.visible

apps/map/admin.py

@@ -1,12 +1,33 @@
 from django.contrib import admin
-from moderation.admin import ModerationAdmin
 from leaflet.admin import LeafletGeoAdmin
 
 from .models import CaseStudy
 
 
 class CaseStudyAdmin(LeafletGeoAdmin):
-    pass
+    list_display = ('id', 'date_created', 'entry_name', 'approved')
+    actions = ['approve', 'unapprove']
 
+    def approve(self, request, queryset):
+        updated = queryset.update(approved=True)
+        if updated == 1:
+            message_bit = "1 case study was"
+        else:
+            message_bit = "{0} case studies were".format(updated)
+        self.message_user(request, "{0} successfully approved".format(
+            message_bit
+        ))
+    approve.short_description = "Approve selected case studies"
+
+    def unapprove(self, request, queryset):
+        updated = queryset.update(approved=False)
+        if updated == 1:
+            message_bit = "1 case study was"
+        else:
+            message_bit = "{0} case studies were".format(updated)
+        self.message_user(request, "{0} successfully un-approved".format(
+            message_bit
+        ))
+    unapprove.short_description = "Un-approve selected case studies"
 
 admin.site.register(CaseStudy, CaseStudyAdmin)