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[-] Retrieve content types lazily in Generic Relations admin

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Corey Oordt 2017-10-12 22:47:58 -05:00
parent 7fa98fd58f
commit 5dda5348c0
1 changed files with 14 additions and 5 deletions
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19
categories/genericcollection.py
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@ -1,23 +1,32 @@
from django.contrib import admin from django.contrib import admin
from django.contrib.contenttypes.models import ContentType from django.contrib.contenttypes.models import ContentType
from django.core.urlresolvers import reverse, NoReverseMatch
import json
class GenericCollectionInlineModelAdmin(admin.options.InlineModelAdmin): class GenericCollectionInlineModelAdmin(admin.options.InlineModelAdmin):
ct_field = "content_type" ct_field = "content_type"
ct_fk_field = "object_id" ct_fk_field = "object_id"
def __init__(self, parent_model, admin_site): def get_content_types(self):
super(GenericCollectionInlineModelAdmin, self).__init__(parent_model, admin_site)
ctypes = ContentType.objects.all().order_by('id').values_list('id', 'app_label', 'model') ctypes = ContentType.objects.all().order_by('id').values_list('id', 'app_label', 'model')
elements = ["%s: '%s/%s'" % (x, y, z) for x, y, z in ctypes] elements = {}
self.content_types = "{%s}" % ",".join(elements) for x, y, z in ctypes:
try:
elements[x] = reverse("admin:%s_%s_changelist" % (y, z))
except NoReverseMatch:
continue
return json.dumps(elements)
def get_formset(self, request, obj=None, **kwargs): def get_formset(self, request, obj=None, **kwargs):
result = super(GenericCollectionInlineModelAdmin, self).get_formset(request, obj, **kwargs) result = super(GenericCollectionInlineModelAdmin, self).get_formset(request, obj, **kwargs)
result.content_types = self.content_types result.content_types = self.get_content_types()
result.ct_fk_field = self.ct_fk_field result.ct_fk_field = self.ct_fk_field
return result return result
class Media:
js = ('contentrelations/js/genericlookup.js', )
class GenericCollectionTabularInline(GenericCollectionInlineModelAdmin): class GenericCollectionTabularInline(GenericCollectionInlineModelAdmin):
template = 'admin/edit_inline/gen_coll_tabular.html' template = 'admin/edit_inline/gen_coll_tabular.html'