Menu
author = models.ForeignKey(User)
Is there any way I can set the default value of this field to automatically select the logged in user? I know you can do this in the save method but my client has requested that it automatically defaults to the logged in user at edit time to avoid confusion.
This article goes into how to update it during save, just not at edit time.
860
Yes, you can define a column with a default value of 0 as a Foreign Key. However, for the constraint to work, you would need to have a row in the source table with a value of 0 as well. Example: CREATE TABLE dbo.
Introduction to Django Foreign Key. A foreign key is a process through which the fields of one table can be used in another table flexibly. So, two different tables can be easily linked by means of the foreign key. This linking of the two tables can be easily achieved by means of foreign key processes.
According to documentation, An AutoField is an IntegerField that automatically increments according to available IDs. One usually won't need to use this directly because a primary key field will automatically be added to your model if you don't specify otherwise.
The related_name attribute specifies the name of the reverse relation from the User model back to your model. If you don't specify a related_name, Django automatically creates one using the name of your model with the suffix _set. Syntax: field_name = models.Field(related_name="name")
class MyModelAdmin(admin.ModelAdmin):
def formfield_for_foreignkey(self, db_field, request, **kwargs):
if db_field.name == 'author':
kwargs['initial'] = request.user.id
return super(MyModelAdmin, self).formfield_for_foreignkey(
db_field, request, **kwargs
)
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
