use AdminSite.index_template instead of overriding the default AdminSite

CHANGES

@@ -3,6 +3,7 @@ Version History
 Version 0.7.13 (unreleased)
 ---------------------------
 * Search in comments, too (PR #174, thanks @torchingloom)
+* Added `ROSETTA_SHOW_AT_ADMIN_PANEL` setting to display add a link to Rosetta from the admin app index page. (PR #176, thanks @scream4ik)
 
 
 Version 0.7.12

docs/settings.rst

@@ -20,7 +20,7 @@ Rosetta can be configured via the following parameters, to be defined in your pr
 * ``ROSETTA_EXCLUDED_PATHS``: Exclude paths defined in this list from being searched (usually ends with "locale"). Defaults to ``()``
 * ``ROSETTA_AUTO_COMPILE``: Determines whether the MO file is automatically compiled when the PO file is saved. Defaults to ``True``.
 * ``ROSETTA_ENABLE_REFLANG``: Enables a selector for picking a reference language other than English. Defaults to ``False``.
-* ``ROSETTA_SHOW_AT_ADMIN_PANEL``: Enable rosetta at administration panel (NOTE: rosetta need to be first at INSTALLED_APPS). Defaults to ``False``.
+* ``ROSETTA_SHOW_AT_ADMIN_PANEL``: Adds a handy link to Rosetta at the bottom of the Django admin apps index. Defaults to ``False``.
 
 Storages
 --------

rosetta/apps.py

@@ -1,8 +1,4 @@
 from django.apps import AppConfig
-from django.views.decorators.cache import never_cache
-from django.core.urlresolvers import reverse
-from django.utils.translation import ugettext as _
-
 from rosetta.conf import settings as rosetta_settings
 
 
@@ -11,30 +7,6 @@ class RosettaAppConfig(AppConfig):
 
     def ready(self):
         from django.contrib import admin
-        from django.contrib.admin import sites
-
-        class RosettaAdminSite(admin.AdminSite):
-            @never_cache
-            def index(self, request, extra_context=None):
-                resp = super(RosettaAdminSite, self).index(request,
-                                                           extra_context)
-                app_dict = {
-                    'app_url': reverse('rosetta-home'),
-                    'models': [
-                        {
-                            'admin_url': reverse('rosetta-home'),
-                            'name': _('Browse'),
-                            'add_url': None
-                        },
-                    ],
-                    'has_module_perms': True,
-                    'name': _('Translations'),
-                    'app_label': 'rosetta'
-                }
-                resp.context_data['app_list'].append(app_dict)
-                return resp
 
         if rosetta_settings.SHOW_AT_ADMIN_PANEL:
-            rosetta = RosettaAdminSite()
-            admin.site = rosetta
-            sites.site = rosetta
+            admin.site.index_template = 'rosetta/admin_index.html'

rosetta/templates/rosetta/admin_index.html

@@ -0,0 +1,20 @@
+{% extends "admin/index.html" %}
+{% load i18n %}
+
+{% block sidebar %}
+{{block.super}}
+<div id="rosetta-content-main">
+    <div class="app-rosetta module">
+        <table>
+        <caption>
+            <a class="section" href="{% url 'rosetta-home' %}">Rosetta</a>
+        </caption>
+            <tbody><tr>
+                <th scope="row"><a href="{% url 'rosetta-home' %}">{% trans "Translations" %}</a></th>
+                <td colspan="2"><a href="{% url 'rosetta-home' %}" class="changelink">{% trans "Change" %}</a></td>
+            </tr>
+        </tbody></table>
+    </div>
+</div>
+
+{% endblock %}

rosetta/tests/tests.py

@@ -12,7 +12,7 @@
 import shutil
 import six
 import django
-import vcr
+# import vcr
 import hashlib
 
 
@@ -57,6 +57,7 @@ def setUp(self):
         self.__require_auth = rosetta_settings.ROSETTA_REQUIRES_AUTH
         self.__enable_translation = rosetta_settings.ENABLE_TRANSLATION_SUGGESTIONS
         self.__auto_compile = rosetta_settings.AUTO_COMPILE
+        self.__admin_panel_embed = rosetta_settings.SHOW_AT_ADMIN_PANEL
 
         shutil.copy(self.dest_file, self.dest_file + '.orig')
 
@@ -67,6 +68,8 @@ def tearDown(self):
         rosetta_settings.ROSETTA_REQUIRES_AUTH = self.__require_auth
         rosetta_settings.ENABLE_TRANSLATION_SUGGESTIONS = self.__enable_translation
         rosetta_settings.AUTO_COMPILE = self.__auto_compile
+        rosetta_settings.SHOW_AT_ADMIN_PANEL = self.__admin_panel_embed
+
         shutil.move(self.dest_file + '.orig', self.dest_file)
 
     def test_1_ListLoading(self):
@@ -823,6 +826,10 @@ def message_hashes():
         self.assertNotEqual(po_file_hash_before, po_file_hash_after)
         self.assertNotEqual(mo_file_hash_before, mo_file_hash_after)
 
+    def test_41_pr_176_embed_in_admin(self):
+        resp = self.client.get(reverse('admin:index'))
+        self.assertTrue('app-rosetta module' in str(resp.content))
+
 
 # Stubbed access control function
 def no_access(user):

testproject/settings.py

@@ -113,3 +113,4 @@
 
 ROSETTA_ENABLE_REFLANG = True
 ROSETTA_ENABLE_TRANSLATION_SUGGESTIONS = True
+ROSETTA_SHOW_AT_ADMIN_PANEL = True