flask-sqlalchemy

I want to have several app factories(currently: one for development, and another one for testing). I am wondering what is the proper way to implement them. Currently I use app object to register views(via @app.route() decorator). Do I need to start using blueprints(instead of app) to register views? Is there any way to have proper app factories without blueprients? technically, you don't need blueprints, you can just register each route on your create_app function. Generally speaking that's not a great idea, and it's kind of why blueprints exist. Example without blueprints def create_app():

I'm trying to define a relationship between two tables whose relations are indirect (i.e. through two other tables). The results I'm looking for can be fetched with this query: (db.session.query(Telnum) .filter(Account.customer==customer) .filter(Account.account_id == Subscription.account_id) .filter(Telnum.sub_id == Subscription.id) .order_by(Telnum.telnum) .all() ) where customer is a Customer object. I'm struggling to figure out how this would be defined as a relationship, similar to the Customer.invoices relationship. An idea I had was something like this: telnums = db.relationship('Telnum

I am using SQLAlchemy with Flask to create relationships for my application. I recently rewrote the relationships, and, no matter what I change, I keep getting the error: sqlalchemy.exc.NoForeignKeysError: Could not determine join condition between parent/child tables on relationship CurriculumVersion.enrollments - there are no foreign keys linking these tables. Ensure that referencing columns are associated with a ForeignKey or ForeignKeyConstraint, or specify a 'primaryjoin' expression. On my models: class User(db.Model, AuthUser): id = db.Column(db.Integer, primary_key=True) tf_login = db

I have a typical Post / Tags (many tags associated with one post) relationship in flask-sqlalchemy, and I want to select posts which aren't tagged with any tag in a list I provide. First, the models I set up: class Post(db.Model): id = db.Column(db.Integer, primary_key=True) tags = db.relationship('Tag', lazy='dynamic') class Tag(db.Model): id = db.Column(db.Integer, primary_key=True) name = db.Column(db.Text(50)) post_id = db.Column(db.Integer, db.ForeignKey('post.id')) Something like db.session.query(Post).filter(Post.tags.name.notin_(['dont','want','these'])) fails with AttributeError:

I have a web application that gets dynamic data from Flask when a select element from HTML is changed. of course that is done via jquery ajax . No probs here I got that. The problem is, the dynamic data - that is sent by Flask - , is a list of objects from the database Flask-sqlalchemy . Of course the data is sent as JSON from Flask . I'd like to iterate through those objects to display their info using Jinja . HTML <select id="#mySelect"> <option value="option1" id="1">Option 1 </option> <option value="option2" id="1">Option 2 </option> <option value="option3" id="3">Option 3 </option> <

I have a Flask app that uses Flask-SQLAlchemy and I'm trying to configure it to use multiple databases with the Flask-Restless package. According to the docs , configuring your models to use multiple databases with __bind_key__ seems pretty straightforward. However it doesn't seem to be working for me. I create my app and initialise my database like this: from flask import Flask from flask.ext.sqlalchemy import SQLAlchemy SQLALCHEMY_DATABASE_URI = 'postgres://db_user:db_pw@localhost:5432/db_name' SQLALCHEMY_BINDS = { 'db1': SQLALCHEMY_DATABASE_URI, 'db2': 'mysql://db_user:db_pw@localhost:3306

I want to define a specific schema for a 'model' using flask-sqlalchemy. When you create a table object in sqlalchemy itself it has a parameter to pass for schema name. How do I do this in flask-sqlalchemy? When you define your model class use: __table_args__ = {"schema":"schema_name"} maybe it will save someone else some hunting. For future references: db = flask.ext.sqlalchemy.SQLAlchemy(app) app.config['SQLALCHEMY_DATABASE_URI'] = 'your_default_schema_db_uri' app.config['SQLALCHEMY_BINDS'] = {'other_schema': 'your_other_db_uri'} class TableA(db.Model): # This belongs to Default schema, it