Does a model's save() method get called when using loaddata for fixtures?

问题

I'm trying to generate an automatic slug for a model whenever it is empty, from another field. This is the code:

class Position(RichText):
    name = models.CharField(max_length=200)
    slug = models.SlugField(null=True)

    def position_description(self):
        return self.content

    def __unicode__(self):
        return self.name

    def save(self, *args, **kwargs):
        if not self.slug:
            self.slug = slugify(self.name)

        super(Position, self).save(*args, **kwargs)

When I load initial fixtures with loaddata, it seems the save() method is never triggered. Is this normal behavior? How can I catch fixtures too?

回答1:

This is normal behavior, from the documentation:

When fixture files are processed, the data is saved to the database as is. Model defined save methods and pre_save signals are not called

.

来源：https://stackoverflow.com/questions/8595536/does-a-models-save-method-get-called-when-using-loaddata-for-fixtures