【发布时间】:2017-07-21 09:24:47
【问题描述】:
我是 Flask 堆栈的新手。我需要运行一些项目。我创建了 virtualenv 并安装了所有要求:
Flask==0.10.1
Flask-Login==0.3.1
Flask-Testing==0.4.2
Flask-WTF==0.12
Jinja2==2.8
MarkupSafe==0.23
WTForms==2.0.2
Werkzeug==0.10.4
argparse==1.2.1
flask-peewee==0.6.6
funcsigs==0.4
itsdangerous==0.24
mock==1.3.0
nose==1.3.7
pbr==1.8.0
peewee==2.6.4
psycopg2==2.6.1
requests==2.7.0
six==1.9.0
wsgiref==0.1.2
wtf-peewee==0.2.3
我还有启动项目的 runserver.py 脚本:
from myproject import create_app
app = create_app()
if __name__ == '__main__':
app.run(debug=True, port=5000, host='0.0.0.0')
现在我想从 models.py 初始化数据库:
from peewee import Model, CharField, IntegerField, DateTimeField, DecimalField, TextField, datetime as peewee_datetime
from playhouse.pool import PooledPostgresqlExtDatabase
from .config import BaseConfig
db = PooledPostgresqlExtDatabase(**BaseConfig.DATABASE)
db.commit_select = True
db.autorollback = True
class BaseModel(Model):
class Meta:
database = db
def save(self, **kwds):
with db.transaction():
Model.save(self, **kwds)
class Payment(BaseModel):
class Meta:
db_table = "payments"
card_number = CharField()
amount = DecimalField()
....
def init_db():
try:
db.connect()
map(lambda l: db.drop_table(l, True), (Payment,))
print "tables dropped"
map(lambda l: db.create_table(l, True), (Payment,))
print "tables created"
except:
db.rollback()
raise
如何创建表格? Peewee 有类似 Django 命令“python manage.py migrate”的东西吗? 以及如何在 Django 中的“python manage.py shell”之类的项目中运行 python shell?
【问题讨论】:
-
Anubhav Agarwal,peewee_migrate 未在要求中列出。我需要在这个堆栈中完成。
-
ОК,我明白了。在 shell 中,我从 models.py 导入了 init_db() 并运行它。无需迁移。
标签: python flask peewee flask-peewee