问题
I am using Flask-Admin for my Flask-based project. In it, I have some models (using peewee) where the primary-key is user-set, such as username
for a User
. However Flask-Admin is not showing these fields in the model's create/edit pages.
Now, when I try to create a new user, the "Save" button gives a peewee.UserDoesNotExist
error, and the "Save & Add" says "Record successfully created" twice but doesn't actually do anything.
I had extended the save()
method to auto-generate the username from the name if it's unset, but the problem persisted even when I removed the overriding.
The code...
Here's what my User model looks like:
# import peewee as pw
class User(BaseModel, UserMixin):
username = pw.CharField(32, primary_key=True)
password = pw.CharField(512, null=True)
name = pw.CharField(64)
# ... other fields not shown ... #
def save(self, *args, **kwargs):
# Set the username if field is blank
if self.username == 'auto' or not self.username:
self.username = self.name.replace(' ', '').lower()
# Do the real save
super(User, self).save(*args, **kwargs)
Here's my admin code:
# from flask_admin.contrib.peewee.view import ModelView
class AdminModelUser(ModelView):
can_create = True
column_list = ('username', 'name', 'group', 'active')
admin.add_view(AdminModelUser(User, name='Users', category='Accounts'))
Trying out stuff
I later tried to override the get_form()
method, to use wtfpeewee
directly and allow the pk, like this:
# from wtfpeewee.orm import model_form
class AdminModelUser(ModelView):
...
def get_form(self):
return model_form(User, allow_pk=True)
Now the field is showing, but saving still does not work. When I edit the username of an existing user, the admin says "Record was successfully saved", but it doesn't get saved. And when I try to create a new user, I still get a peewee.UserDoesNotExist
error.
My guess is that I've done the overriding in the wrong place, with the fields showing in the form but not in the save methods. I couldn't find any mention of this in the docs: does anyone know how to do it?
回答1:
When you've got a non-integer primary key, you must call save()
with force_insert=True
to add a new row.
http://docs.peewee-orm.com/en/latest/peewee/models.html#non-integer-primary-keys-composite-keys-and-other-tricks
来源:https://stackoverflow.com/questions/31207704/make-primary-key-fields-editable-in-flask-admin