Trying to reproduce issue #834 in flask-admin

issue_834.py

from flask import Flask
from flask_sqlalchemy import SQLAlchemy

import flask_admin as admin
from flask_admin.contrib import sqla


# Create application
app = Flask(__name__)


# Create dummy secrey key so we can use sessions
app.config['SECRET_KEY'] = '123456790'

# Create in-memory database
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///sample_db_2.sqlite'
app.config['SQLALCHEMY_ECHO'] = True
db = SQLAlchemy(app)

# Flask views
@app.route('/')
def index():
    return '<a href="/admin/">Click me to get to Admin!</a>'


class Person(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(50))
    addresses = db.relationship('Address', backref='person', lazy='dynamic')


class Address(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    email = db.Column(db.String(50))
    person_id = db.Column(db.Integer, db.ForeignKey('person.id'), nullable=True)


class PersonAdmin(sqla.ModelView):
    column_display_pk = True
    column_searchable_list = ['name', Address.email]


class AddressAdmin(sqla.ModelView):
    column_display_pk = True
    column_searchable_list = ['email', Person.name]


# Create admin
admin = admin.Admin(app, name='Example: SQLAlchemy2', template_mode='bootstrap3')
admin.add_view(PersonAdmin(Person, db.session))
admin.add_view(AddressAdmin(Address, db.session))

if __name__ == '__main__':

    # Create DB
    db.drop_all()
    db.create_all()

    db.session.add(Person(name="test"))
    db.session.add(Person(name="blah"))
    db.session.add(Address(email="[email protected]", person_id=1))
    db.session.add(Address(email="[email protected]", person_id=None))
    db.session.commit()

    # Start app
    app.run(debug=True)