Warning
This module is depricated. Use https://github.com/klen/mixer instead.
Flask-Mixer is simply application for generate instances of SQLAlchemy models. It's useful for testing. Fast and convenient test-data generation.
Flask-Mixer is in early development.
- python >= 2.6
- Flask >= 0.8
- Flask-SQLAlchemy>=0.16
Flask-Mixer should be installed using pip:
pip install Flask-Mixer
Example:
from flask import Flask
from flask.ext.mixer import Mixer
from flask.ext.sqlalchemy import SQLAlchemy
from datetime import datetime
app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///:memory:'
db = SQLAlchemy()
db.init_app(app)
class User(db.Model):
__tablename__ = 'user'
id = db.Column(db.Integer, primary_key=True)
score = db.Column(db.Integer, default=50, nullable=False)
created_at = db.Column(db.DateTime, default=datetime.utcnow, nullable=False)
username = db.Column(db.String(20), nullable=False)
class Role(db.Model):
__tablename__ = 'role'
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(20), nullable=False)
user_id = db.Column(db.Integer, db.ForeignKey(User.id), nullable=False)
user = db.relation(User)
class Profile(db.Model):
__tablename__ = 'profile'
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(20), nullable=False)
user = db.relationship("User", uselist=False, backref="profile")
mixer = Mixer(app, session_commit=True)
with app.test_request_context():
db.create_all()
# Simple model generation
user1 = mixer.blend(User)
assert user1.id and user1.username and user1.created_at
assert user1.score == 50
assert user.profile.user == user
# Generate model with some values
user2 = mixer.blend(User, username='test')
assert user2.username == 'test'
# Model would be defined as string
role1 = mixer.blend('app.models.Role')
assert role1.user
assert role1.user_id == role1.user.id
# Generate model with reference
role1 = mixer.blend(Role, user__username='test2')
assert role2.user.username == 'test2'
# Set related values from db by random
profiles = Profile.query.all()
user = mixer.blend(User, profile=mixer.random)
assert user.profile in profiles
# By default, column with defvalue will be to init as them
# but you can still force set it to random value
user = mixer.blend(User, score=mixer.random)
assert user.score != 50
# Value can be callable
user = mixer.blend(User, username=lambda:'callable_value')
assert user.username == 'callable_value'
If you have any suggestions, bug reports or annoyances please report them to the issue tracker at https://github.com/klen/Flask-Mixer/issues
Development of flask-mixer happens at github: https://github.com/klen/Flask-Mixer
- klen (Kirill Klenov)
Licensed under a BSD license.