Changes between Version 3 and Version 4 of UniqueSlugValidator


Ignore:
Timestamp:
12/16/19 16:06:04 (3 years ago)
Author:
Adam Johnson
Comment:

--

Legend:

Unmodified
Added
Removed
Modified
  • UniqueSlugValidator

    v3 v4  
    1 Validation for unique slugs.
     1Content deleted due to age
    22
    3 Requires a minor change to the admin view.
    4 
    5 {{{
    6 
    7 --- django/contrib/admin/views/main.py  (revision 3185)
    8 +++ django/contrib/admin/views/main.py  (working copy)
    9 @@ -319,7 +319,7 @@
    10 
    11      if request.POST:
    12          new_data = request.POST.copy()
    13 -
    14 +        new_data.update({'id':object_id})
    15          if opts.has_field_type(models.FileField):
    16              new_data.update(request.FILES)
    17 
    18 
    19 }}}
    20 
    21 someapp/models.py
    22 
    23 {{{
    24 
    25 class isUniqueSlug:
    26 
    27     def __init__(self, slug, app, model):
    28         self.slug, self.app, self.model = slug, app, model
    29 
    30     def __call__(self, field_data, all_data):
    31 
    32         from django.core.validators import ValidationError
    33         from django.utils.translation import gettext, gettext_lazy
    34         from django.db.models.loading import get_model
    35 
    36         model = get_model(self.app,self.model)
    37 
    38         if all_data.get('id', None):
    39             q=model.objects.exclude(id=all_data.get('id'))
    40         else:
    41             q=model.objects.all()
    42 
    43         try:
    44             d = {self.slug+'__exact': field_data}
    45             p = q.get(**d)
    46         except:
    47             p=None
    48 
    49         if p:
    50             raise ValidationError, gettext_lazy("Is not a unique slug.")
    51 
    52 
    53 class Somemodel(models.Model):
    54 
    55     any_slug = models.SlugField(validator_list=[isUniqueSlug('any_slug','someapp','Somemodel')])
    56 
    57 }}}
    58 
    59 
     3To make fields unique use Field.unique: https://docs.djangoproject.com/en/3.0/ref/models/fields/#unique
Back to Top