alembic

问题 I use Alembic to manage my migrations. My database is on AWS, and I want to connect it with SSL. In my alembic.ini I have the lines [production] script_location = alembic_prod sqlalchemy.url = mysql+pymysql://user:password@my-rds-host.eu-west-1.rds.amazonaws.com/mydatabase Of course, it works if user have the permission to connect the base without SSL, but not otherwise. How to require a SSL connection, and specify the certificate ? 回答1: You first need the certificate bundle - http://docs.aws

问题 I've added a column registered_on = db.Column(db.DateTime, nullable=False) to my users table. The migration which was automatically created is def upgrade(): # ### commands auto generated by Alembic - please adjust! ### ... op.add_column('users', sa.Column('registered_on', sa.DateTime(), nullable=False)) ... When I execute it, I got an exception about an invalid value 0000-00-00 00:00:00 (or so). How should I adjust the migration script to not have this problem? (In this situation, filling in

问题 I'm managing database migrations with Alembic and would like to use the default files generated by alembic init without any modifications to env.py (e.g., setting target_metadata) or alembic.ini (e.g., setting sqlalchemy.url) to manage migrations of my database from scripts. For example, I'd like to use a command based script like the following: import os from alembic.config import Config from alembic import command from myapp import db alembic_cfg = Config(os.path.join(os.path.abspath(os

问题 I'm trying to use flask, sqlalchemy, and flask_migrate... But every time run manage.py migrate, alembic always detect my model as a new table. I think that i put table_args in my model to store table in a different postgres schema: class Entry(db.Model): __table_args__ = {'schema': app.config['BASE_SCH']} id = db.Column(db.Integer, primary_key=True) title = db.Column(db.String(100)) slug = db.Column(db.String(100), unique=True) body = db.Column(db.Text) status = db.Column(db.SmallInteger,

问题 I am building a shared lib by linking a bunch of code with a static lib (.a) on Linux in C++. I have a method defined in a static library. When I use nm -C to print the symbol in that static library is appears as: Alembic::AbcCoreFactory::v9::IFactory::getArchive(std::string const&, Alembic::AbcCoreFactory::v9::IFactory::CoreType&) The symbol is not defined in the output .so file (the library I am building), but when I list the undefined symbols using nm -uC it prints: Alembic::AbcCoreFactory

问题 I'm working on a project with Alembic and SQLAlchemy, but I'm having trouble creating a simple entry in the database as a test. I get the following error: sqlalchemy.exc.ArgumentError: Mapper Mapper|Sale|sales_cache could not assemble any primary key columns for mapped table 'sales_cache' I've established the primary key (account_id) in both places below, any idea why SQLAlchemy doesn't recognize that or how to fix it? The other answers I've read have all dealt with exception cases for

问题 I am trying to run alembic migration and when I run alembic revision --autogenerate -m "Added initial tables" It fails saying sqlalchemy.exc.ArgumentError: Can't load plugin: sqlalchemy.dialects:driver the database url is postgresql+psycopg2://dev:passwd@localhost/db and I even have psycopg2 installed in my virtualenv $yolk -l Flask-Login - 0.1.3 - active Flask-SQLAlchemy - 0.16 - active Flask - 0.9 - active Jinja2 - 2.6 - active Mako - 0.7.3 - active MarkupSafe - 0.15 - active Python - 2.7.2

问题 I have an Alchemy ORM object: from sqlalchemy.ext.declarative import declarative_base Base = declarative_base() class MyORM(Base): id = Column(Integer, primary_key=True) name = Column(String(128), unique=True, nullable=False) When using alembic to create the table I do the following: def upgrade(): op.create_table( 'myorm', sa.Column('id', sa.Integer, primary_key=True), sa.Column('name', sa.String(128), nullable=False), ) Question: Is there a way to use the MyORM class to create the table?

问题 In my sqlalchemy model i use sqlalchemy_utils' choicetype: id = db.Column(db.Integer, primary_key=True) code = db.Column(db.Integer, nullable=True) level = db.Column(mytypes.types.ChoiceType(LEVEL)) I did everything as described here http://alembic.readthedocs.org/en/latest/autogenerate.html#autogen-module-prefix. In my model i imported choicetype from my module mytypes.types: from sqlalchemy_utils.types.choice import ChoiceType , in alembic/env.py i added context context.configure(

问题 I'm using alembic to manage my database structure. After adding a table using id as Integer and primary key the id column will be an autoincrement-column. How do I query the data in the upgrade script so I'm sure that I get the correct id (I know it's 1 in this specific case)? I know how to #creating the table op.create_table( 'srv_feed_return_type', sa.Column('id', sa.Integer, primary_key=True), sa.Column('name', sa.String(50), nullable=False), sa.Column('created', sa.DateTime, server