Changes between Version 2 and Version 3 of UniqueSlugValidator

Timestamp:

Jun 23, 2006, 3:27:08 AM (19 years ago)

Author:

[530]

Comment:

--

UniqueSlugValidator

@@ +1 @@
+Validation for unique slugs.
+
+Requires a minor change to the admin view.
+
+{{{
+
+--- django/contrib/admin/views/main.py  (revision 3185)
++++ django/contrib/admin/views/main.py  (working copy)
+@@ -319,7 +319,7 @@
+
+     if request.POST:
+         new_data = request.POST.copy()
+-
++        new_data.update({'id':object_id})
+         if opts.has_field_type(models.FileField):
+             new_data.update(request.FILES)
+
+
+}}}
+
+someapp/models.py
+
+{{{
+
+class isUniqueSlug:
+
+    def __init__(self, slug, app, model):
+        self.slug, self.app, self.model = slug, app, model
+
+    def __call__(self, field_data, all_data):
+
+        from django.core.validators import ValidationError
+        from django.utils.translation import gettext, gettext_lazy
+        from django.db.models.loading import get_model
+
+        model = get_model(self.app,self.model)
+
+        if all_data.get('id', None):
+            q=model.objects.exclude(id=all_data.get('id'))
+        else:
+            q=model.objects.all()
+
+        try:
+            d = {self.slug+'__exact': field_data}
+            p = q.get(**d)
+        except:
+            p=None
+
+        if p:
+            raise ValidationError, gettext_lazy("Is not a unique slug.")
+
+
+class Somemodel(models.Model):
+
+    any_slug = models.SlugField(validator_list=[isUniqueSlug('any_slug','someapp','Somemodel')])
+
+}}}
+
+