我在SQLAlchemy的两个型号,我已经自动加入一个外键,像这样: class Parent(Base):
__tablename__ = 'parents'
id = Column(Integer, primary_key=True)
name = Column(String(300), nullable=False)
metadata_id = Co
我有以下设置 class Content(Base):
"""Content object"""
__tablename__ = "content"
id = Column(Integer, primary_key=True)
name = Column(Unicode(255),unique=True, nullable=False)
title
每次我更新我的模型时,我必须删除并重新初始化数据库。 ./manage.py db init 然后初始 ./manage.py db migrate 工作,但以后每./manage.py db migrate失败,出现以下错误: INFO [alembic.migration] Context impl SQLiteImpl.
INFO [alembic.migration] Will assu
我添加新PostGIS几何点蒸馏器更新脚本是这样的: from alembic import op
import sqlalchemy as sa
import geoalchemy2 as ga
def upgrade():
op.add_column('stuff', sa.Column('my_location', ga.Geometry('POINT', manageme
我最初定义我的SQLAlchemy的车型之一为: class StreetSegment(db.Model):
id = db.Column(db.Integer, autoincrement=True) # surrogate ID
seg_id = db.Column(db.Integer, primary_key=True) # assigned in another s
在过去的几个星期里,我一直在建立一个网站,主要基于Miguel Grinberg的书'Flask Web Development'。这是我参考“manage.py”文件: import os
from app import create_app, db
from app.models import User, Role, Permission, Post
from flask.ext.scr