misc: turn url field of link cell into a generic char field (#19602)

combo/data/migrations/0029_auto_20171022_1242.py

@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('data', '0028_jsoncell_timeout'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='linkcell',
+            name='url',
+            field=models.CharField(max_length=200, verbose_name='URL', blank=True),
+        ),
+    ]

combo/data/models.py

@@ -658,7 +658,7 @@ class MenuCell(CellBase):
 @register_cell_class
 class LinkCell(CellBase):
     title = models.CharField(_('Title'), max_length=150, blank=True)
-    url = models.URLField(_('URL'), blank=True)
+    url = models.CharField(_('URL'), max_length=200, blank=True)
     link_page = models.ForeignKey('data.Page', related_name='link_cell', blank=True,
             null=True, verbose_name=_('Internal link'))
     anchor = models.CharField(_('Anchor'), max_length=150, blank=True)