filters, list_editable, format json field

app/text/admin.py

@@ -1,10 +1,15 @@
 from django.contrib import admin
+from django.db.models import JSONField
 
 from . import models
+from ..widgets import PrettyJSONWidget
 
 
 @admin.decorators.register(models.Text)
 class TextAdmin(admin.ModelAdmin):
+    formfield_overrides = {
+        JSONField: {'widget': PrettyJSONWidget}
+    }
     list_display = (
         '__str__',
         'item',
@@ -14,7 +19,9 @@ class TextAdmin(admin.ModelAdmin):
         'public',
         'position',
     )
-    list_editable = ['public', 'language']
+    list_editable = ['public', 'language', 'position']
+    list_filter = ['language', 'public']
+
     def item(self, obj):
         return obj.data.get('item')
     def edit(self, obj):

app/video/admin.py

@@ -1,16 +1,26 @@
+import logging
+import json
+
 from django.contrib import admin
+from django.db.models import JSONField
 
 from . import models
-
+from ..widgets import PrettyJSONWidget
+logger = logging.getLogger(__name__)
 
 @admin.decorators.register(models.Film)
 class FilmAdmin(admin.ModelAdmin):
+    formfield_overrides = {
+        JSONField: {'widget': PrettyJSONWidget}
+    }
     list_display = (
         '__str__',
         'position',
         'slug',
         'public',
     )
+    list_editable = ['public', 'position']
+    list_filter = ['public']
 
 #@admin.decorators.register(models.Edit)
 #class EditAdmin(admin.ModelAdmin):

app/widgets.py

@@ -0,0 +1,21 @@
+import logging
+import json
+
+from django.forms import widgets
+
+logger = logging.getLogger(__name__)
+
+class PrettyJSONWidget(widgets.Textarea):
+
+    def format_value(self, value):
+        try:
+            value = json.dumps(json.loads(value), indent=2, sort_keys=True, ensure_ascii=False)
+            # these lines will try to adjust size of TextArea to fit to content
+            row_lengths = [len(r) for r in value.split('\n')]
+            self.attrs['rows'] = min(max(len(row_lengths) + 2, 10), 30)
+            self.attrs['cols'] = min(max(max(row_lengths) + 2, 40), 120)
+            return value
+        except Exception as e:
+            logger.warning("Error while formatting JSON: {}".format(e))
+            return super(PrettyJSONWidget, self).format_value(value)
+