admin/base.py

   1 from django.conf import settings
   2 from django.contrib import admin
   3 from django.contrib.contenttypes import generic
   4 from django.http import HttpResponse
   5 from django.utils import simplejson as json
   6 from django.utils.html import escape
   7 from philo.models import Tag, Attribute
   8 from philo.forms import AttributeForm, AttributeInlineFormSet
   9 from philo.admin.widgets import TagFilteredSelectMultiple
  10
  11
  12 COLLAPSE_CLASSES = ('collapse', 'collapse-closed', 'closed',)
  13
  14
  15 class AttributeInline(generic.GenericTabularInline):
  16         ct_field = 'entity_content_type'
  17         ct_fk_field = 'entity_object_id'
  18         model = Attribute
  19         extra = 1
  20         allow_add = True
  21         classes = COLLAPSE_CLASSES
  22         form = AttributeForm
  23         formset = AttributeInlineFormSet
  24         fields = ['key', 'value_content_type']
  25         if 'grappelli' in settings.INSTALLED_APPS:
  26                 template = 'admin/philo/edit_inline/grappelli_tabular_attribute.html'
  27         else:
  28                 template = 'admin/philo/edit_inline/tabular_attribute.html'
  29
  30
  31 class EntityAdmin(admin.ModelAdmin):
  32         inlines = [AttributeInline]
  33         save_on_top = True
  34
  35
  36 class TagAdmin(admin.ModelAdmin):
  37         list_display = ('name', 'slug')
  38         prepopulated_fields = {"slug": ("name",)}
  39         search_fields = ["name"]
  40
  41         def response_add(self, request, obj, post_url_continue='../%s/'):
  42                 # If it's an ajax request, return a json response containing the necessary information.
  43                 if request.is_ajax():
  44                         return HttpResponse(json.dumps({'pk': escape(obj._get_pk_val()), 'unicode': escape(obj)}))
  45                 return super(TagAdmin, self).response_add(request, obj, post_url_continue)
  46
  47
  48 class AddTagAdmin(admin.ModelAdmin):
  49         def formfield_for_manytomany(self, db_field, request=None, **kwargs):
  50                 """
  51                 Get a form Field for a ManyToManyField.
  52                 """
  53                 # If it uses an intermediary model that isn't auto created, don't show
  54                 # a field in admin.
  55                 if not db_field.rel.through._meta.auto_created:
  56                         return None
  57
  58                 if db_field.rel.to == Tag and db_field.name in (list(self.filter_vertical) + list(self.filter_horizontal)):
  59                         opts = Tag._meta
  60                         if request.user.has_perm(opts.app_label + '.' + opts.get_add_permission()):
  61                                 kwargs['widget'] = TagFilteredSelectMultiple(db_field.verbose_name, (db_field.name in self.filter_vertical))
  62                                 return db_field.formfield(**kwargs)
  63
  64                 return super(AddTagAdmin, self).formfield_for_manytomany(db_field, request, **kwargs)
  65
  66
  67 admin.site.register(Tag, TagAdmin)