Drop support for Django 1.8

polymorphic/admin/helpers.py

@@ -3,12 +3,7 @@ Rendering utils for admin forms;
 
 This makes sure that admin fieldsets/layout settings are exported to the template.
 """
-import json
-
 from django.contrib.admin.helpers import InlineAdminFormSet, InlineAdminForm, AdminField
-from django.utils.encoding import force_text
-from django.utils.text import capfirst
-from django.utils.translation import ugettext
 
 from polymorphic.formsets import BasePolymorphicModelFormSet
 
@@ -82,30 +77,6 @@ class PolymorphicInlineAdminFormSet(InlineAdminFormSet):
         fields.update(child_inline.get_prepopulated_fields(self.request, self.obj))
         return fields
 
-    # The polymorphic template follows the same method like all other inlines do in Django 1.10.
-    # This method is added for compatibility with older Django versions.
-    def inline_formset_data(self):
-        """
-        A JavaScript data structure for the JavaScript code
-        """
-        verbose_name = self.opts.verbose_name
-        return json.dumps({
-            'name': '#%s' % self.formset.prefix,
-            'options': {
-                'prefix': self.formset.prefix,
-                'addText': ugettext('Add another %(verbose_name)s') % {
-                    'verbose_name': capfirst(verbose_name),
-                },
-                'childTypes': [
-                    {
-                        'type': model._meta.model_name,
-                        'name': force_text(model._meta.verbose_name)
-                    } for model in self.formset.child_forms.keys()
-                ],
-                'deleteText': ugettext('Remove'),
-            }
-        })
-
 
 class PolymorphicInlineSupportMixin(object):
     """

polymorphic/admin/parentadmin.py

@@ -4,7 +4,6 @@ The parent admin displays the list view of the base model.
 import sys
 import warnings
 
-import django
 from django.conf.urls import url
 from django.contrib import admin
 from django.contrib.admin.helpers import AdminErrorList, AdminForm
@@ -270,31 +269,10 @@ class PolymorphicParentModelAdmin(admin.ModelAdmin):
         if not self._compat_mode:
             return urls
 
-        info = _get_opt(self.model)
-
-        # Patch the change view URL so it's not a big catch-all; allowing all
-        # custom URLs to be added to the end. This is done by adding '/$' to the
-        # end of the regex.  The url needs to be recreated, patching url.regex
-        # is not an option Django 1.4's LocaleRegexProvider changed it.
-        if django.VERSION < (1, 9):
-            # On Django 1.9, the change view URL has been changed from
-            # /<app>/<model>/<pk>/ to /<app>/<model>/<pk>/change/, which is
-            # why we can skip this workaround for Django >= 1.9.
-            new_change_url = url(
-                r'^{0}/$'.format(self.pk_regex),
-                self.admin_site.admin_view(self.change_view),
-                name='{0}_{1}_change'.format(*info)
-            )
-
-            redirect_urls = []
-            for i, oldurl in enumerate(urls):
-                if oldurl.name == new_change_url.name:
-                    urls[i] = new_change_url
-        else:
-            # For Django 1.9, the redirect at the end acts as catch all.
-            # The custom urls need to be inserted before that.
-            redirect_urls = [pat for pat in urls if not pat.name]  # redirect URL has no name.
-            urls = [pat for pat in urls if pat.name]
+        # The redirect at the end acts as catch all.
+        # The custom urls need to be inserted before that.
+        redirect_urls = [pat for pat in urls if not pat.name]  # redirect URL has no name.
+        urls = [pat for pat in urls if pat.name]
 
         # Define the catch-all for custom views
         custom_urls = [
@@ -421,7 +399,3 @@ class PolymorphicParentModelAdmin(admin.ModelAdmin):
             "admin/%s/change_list.html" % base_app_label,
             "admin/change_list.html"
         ]
-
-
-def _get_opt(model):
-    return model._meta.app_label, model._meta.model_name