Produits Entr'ouvert » Combo

# -*- coding: utf-8 -*-

from __future__ import unicode_literals

from django.db import migrations

from django.utils.text import slugify

def generate_slug(instance):

    base_slug = slugify(instance.label)[:45]

    slug = base_slug

    i = 1

    while True:

        queryset = instance._meta.model.objects.filter(slug=slug).exclude(pk=instance.pk)

        if not queryset.exists():

            break

        slug = '%s-%s' % (base_slug, i)

        i += 1

    return slug

def set_slug(apps, schema_editor):

    MapLayer = apps.get_model('maps', 'MapLayer')

    for layer in MapLayer.objects.all().order_by('-pk'):

        if not MapLayer.objects.filter(slug=layer.slug).exclude(pk=layer.pk).exists():

            continue

        layer.slug = generate_slug(layer)

        layer.save(update_fields=['slug'])

class Migration(migrations.Migration):

    dependencies = [

        ('maps', '0007_auto_20180706_1345'),

    ]

    operations = [

        migrations.RunPython(set_slug, lambda x, y: None),

    ]

# -*- coding: utf-8 -*-

from __future__ import unicode_literals

from django.db import migrations, models

class Migration(migrations.Migration):

    dependencies = [

        ('maps', '0008_map_layer_set_slug'),

    ]

    operations = [

        migrations.AlterField(

            model_name='maplayer',

            name='slug',

            field=models.SlugField(unique=True, verbose_name='Identifier'),

        ),

    ]

    slug = models.SlugField(_('Identifier'), unique=True)

            while MapLayer.objects.filter(slug=slug).exists():