A ManyToManyField is not a list to be replaced - add the new tags
directly to etiquetas using the .add() method on it.
On Jul 10, 9:34 am, zenx <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I would like to get a list of tags separated by a comma and be able to
> save them as related objects for the current object. Currently I have
> this code. When saving a Receta object it creates the tags objects if
> they doesn't exist yet and it should save the relations between Tags
> and Receta, but they are not saved. The code doesn't give any errors
> but the Tag objects are not linked to the Receta object after saving
> it.
>
> Any ideas why this happens? Thank you!!!
>
> class Tag(models.Model):
> nombre = models.CharField(maxlength=20)
> slug = models.SlugField(prepopulate_from=("nombre",),unique=True)
>
> class Receta(models.Model):
> user = models.ForeignKey(User)
> nombre = models.CharField(maxlength=50)
> slug = models.SlugField(prepopulate_from=("nombre",),unique=True)
> etiquetas =
> models.ManyToManyField(Tag,related_name='recetas',blank=True)
> tags_text = models.CharField(maxlength=150)
>
> def save(self):
> from django.template.defaultfilters import slugify
> tags = self.tags_text.split(',')
> super(Receta, self).save()
> etiquetas_new = []
> for tag in tags:
> etiq, created =
> Tag.objects.get_or_create(nombre=tag,slug=slugify(tag))
> etiquetas_new.append(etiq)
> self.etiquetas = etiquetas_new
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