Fixed #17549 -- Added a clickable link for URLFields in admin change list.

django/contrib/admin/static/admin/css/widgets.css

@@ -225,6 +225,21 @@ table p.datetime {
     padding-left: 0;
 }
 
+/* URL */
+
+p.url {
+    line-height: 20px;
+    margin: 0;
+    padding: 0;
+    color: #666;
+    font-size: 11px;
+    font-weight: bold;
+}
+
+.url a {
+    font-weight: normal;
+}
+
 /* FILE UPLOADS */
 
 p.file-upload {

django/contrib/admin/widgets.py

@@ -10,7 +10,7 @@ from django.contrib.admin.templatetags.admin_static import static
 from django.core.urlresolvers import reverse
 from django.forms.widgets import RadioFieldRenderer
 from django.forms.util import flatatt
-from django.utils.html import escape, format_html, format_html_join
+from django.utils.html import escape, format_html, format_html_join, smart_urlquote
 from django.utils.text import Truncator
 from django.utils.translation import ugettext as _
 from django.utils.safestring import mark_safe
@@ -306,6 +306,19 @@ class AdminURLFieldWidget(forms.TextInput):
             final_attrs.update(attrs)
         super(AdminURLFieldWidget, self).__init__(attrs=final_attrs)
 
+    def render(self, name, value, attrs=None):
+        html = super(AdminURLFieldWidget, self).render(name, value, attrs)
+        if value:
+            value = force_text(self._format_value(value))
+            final_attrs = {'href': mark_safe(smart_urlquote(value))}
+            html = format_html(
+                '<p class="url">{0} <a {1}>{2}</a><br />{3} {4}</p>',
+                _('Currently:'), flatatt(final_attrs), value,
+                _('Change:'), html
+            )
+        return html
+
+
 class AdminIntegerFieldWidget(forms.TextInput):
     class_name = 'vIntegerField'