Make safe admin_links for Django 2.

Author: zbohm

forms_builder/example_project/settings.py

@@ -78,6 +78,7 @@
     'django.contrib.sessions',
     'django.contrib.sites',
     'django.contrib.staticfiles',
+    'django.contrib.messages',
     'forms_builder.forms',
 )
 

forms_builder/forms/models.py

@@ -2,6 +2,7 @@
 
 from django import VERSION as DJANGO_VERSION
 from django.contrib.sites.models import Site
+from django.utils.html import format_html_join
 
 try:
     from django.urls import reverse
@@ -142,16 +143,13 @@ def get_absolute_url(self):
         return reverse("form_detail", kwargs={"slug": self.slug})
 
     def admin_links(self):
-        kw = {"args": (self.id,)}
-        links = [
+        kw = {"args": (self.id, )}
+        return format_html_join("\n", "<div><a href='{1}'>{0}</a></div>", (
             (_("View form on site"), self.get_absolute_url()),
             (_("Filter entries"), reverse("admin:form_entries", **kw)),
             (_("View all entries"), reverse("admin:form_entries_show", **kw)),
             (_("Export all entries"), reverse("admin:form_entries_export", **kw)),
-        ]
-        for i, (text, url) in enumerate(links):
-            links[i] = "<a href='%s'>%s</a>" % (url, ugettext(text))
-        return "<br>".join(links)
+        ))
     admin_links.allow_tags = True
     admin_links.short_description = ""
 

forms_builder/forms/tests.py

@@ -1,5 +1,6 @@
 from __future__ import unicode_literals
 
+from django.utils.safestring import SafeText
 from django.conf import settings
 from django.contrib.auth.models import User, AnonymousUser
 from django.contrib.sites.models import Site
@@ -239,3 +240,14 @@ def test_input_dropdown_required_with_default(self):
                 <option value="two" selected>two</option>
                 <option value="three">three</option>
             </select>""", html=True)
+
+    def test_admin_link(self):
+        form = Form.objects.create(title="Test")
+        content = form.admin_links()
+        self.assertIsInstance(content, SafeText)
+        self.assertInHTML(content, """
+            <div><a href='/forms/test/'>View form on site</a></div>
+            <div><a href='/admin/forms/form/1/entries/'>Filter entries</a></div>
+            <div><a href='/admin/forms/form/1/entries/show/'>View all entries</a></div>
+            <div><a href='/admin/forms/form/1/entries/export/'>Export all entries</a></div>
+        """)