How can I register the project and add this app to flask-admin

my code:

__ __ INIT. RU

from flask import Flask
from flask_admin import Admin
from flask_admin.contrib.sqla import ModelView
from flask.ext.sqlalchemy import SQLAlchemy

app = Flask(__name__)
app.config.from_object('config')
db = SQLAlchemy(app)

from user.user import mod as user
from user.models import User as userModel

app.register_blueprint(user, url_prefix='/user')

admin = Admin(app, name='My app')
admin.add_view(ModelView(userModel, db.session, name='userAdmin'))

      

user.py:

from flask import Blueprint, json
from flask.views import MethodView

mod = Blueprint('user', __name__)

class UserAPI(MethodView):
    def get(self):
        users = [
            {'nickname': 'Chan'},
            {'nickname': 'Hzz'},
        ]
        return json.dumps(users)

mod.add_url_rule('/users/', view_func=UserAPI.as_view('users'))

      

models.py:

from app import db

class User(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(80), unique=True)
    email = db.Column(db.String(120), unique=True)

    def __init__(self, username, email):
        self.username = username
        self.email = email

    def __repr__(self):
        return "<User %s>" % self.username

      

I have a project in my custom app and I registered it, but when I want to add this to my admin to manage custom data, it throws the following exception:

Traceback (most recent call last):
  File "run.py", line 2, in <module>
    from app import app
  File "/home/chenhj/flask/multiapp/app/__init__.py", line 21, in <module>
    admin.add_view(ModelView(userModel, db.session, name='chj'))
  File "/home/chenhj/.virtualenvs/multiapp/local/lib/python2.7/site-packages/flask_admin/base.py", line 526,     in add_view
    self.app.register_blueprint(view.create_blueprint(self))
  File "/home/chenhj/.virtualenvs/multiapp/local/lib/python2.7/site-packages/flask/app.py", line 62, in     wrapper_func
    return f(self, *args, **kwargs)
  File "/home/chenhj/.virtualenvs/multiapp/local/lib/python2.7/site-packages/flask/app.py", line 885, in     register_blueprint
    (blueprint, self.blueprints[blueprint.name], blueprint.name)
AssertionError: A blueprint name collision occurred between <flask.blueprints.Blueprint object at 0x25e5d90> and <flask.blueprints.Blueprint object at 0x21b89d0>.  Both share the same name "user".  Blueprints that are created on the fly need unique names.

      

I'm crazy about this

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3 answers


The collision is because you have a module username and a project called by the user. Rename the project to user_blueprint. From the code, it appears that you have a folder called user, a module called by the user, and a plan called by the user. You can avoid problems later with some descriptive names. Otherwise it is just confused.



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If you have a drawing that already has a username, then your "admin" project must be named something else for your model view of administrators.
You can achieve this with var endpoint in ModelView Flask-Admin - ModelView



admin.add_view(ModelView(Users, db.session, endpoint="users_"))

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You can also override the admin command names in your ModelView subclass:

from flask_admin.contrib.sqla import ModelView

class AppModelView(ModelView):
    def create_blueprint(self, admin):
        blueprint = super(AppModelView, self).create_blueprint(admin)
        blueprint.name = '{}_admin'.format(blueprint.name)
        return blueprint

    def get_url(self, endpoint, **kwargs):
        if not (endpoint.startswith('.') or endpoint.startswith('admin.')):
            endpoint = endpoint.replace('.', '_admin.')
        return super(AppModelView, self).get_url(endpoint, **kwargs)

      

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