小编hae*_*ger的帖子

我想更改Flask-SQLAlchemy中设置的约束的标准命名约定,以简化使用Alembic的迁移.

由于Flask-SQLAlchemy自己创建了声明性基础(你可以提供命名约定),我不确定这样做的最佳方法是什么.我可以在创建声明性基础之后更改命名约定(即,当我创建Flask-SQLAlchemy对象时)或者是否必须继承SQLAlchemy类？有完全不同的方式吗？

当我dev_appserver.py .在app.py使用Python 2.7.12的virtualenv中运行(在包含该目录的目录中)时,我收到此错误并输出:

(.venv)$ dev_appserver.py .                                                              
INFO     2017-02-21 18:54:47,250 devappserver2.py:764] Skipping SDK update check.
INFO     2017-02-21 18:54:47,273 api_server.py:268] Starting API server at: http://localhost:35473
INFO     2017-02-21 18:54:47,276 dispatcher.py:199] Starting module "default" running at: http://localhost:8080
INFO     2017-02-21 18:54:47,276 admin_server.py:116] Starting admin server at: http://localhost:8000
Traceback (most recent call last):
  File "/opt/gcloud/google-cloud-sdk/platform/google_appengine/_python_runtime.py", line 101, in <module>
_run_file(__file__, globals())
  File "/opt/gcloud/google-cloud-sdk/platform/google_appengine/_python_runtime.py", line 97, in _run_file
execfile(_PATHS.script_file(script_name), globals_)
  File "/opt/gcloud/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/python/runtime.py", line 185, in <module>
main()
  File "/opt/gcloud/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/python/runtime.py", line 165, in main …

当我使用 WTForms-JSON 时，嵌套表单 (FormFields) 不会填充数据。我无法发现我的错误，请参见下面的示例。

from flask import Flask, request, jsonify
from flask_wtf import Form
from wtforms import TextField, FormField, IntegerField
from wtforms.validators import InputRequired
import wtforms_json

app = Flask(__name__)
app.config["WTF_CSRF_ENABLED"] = False
wtforms_json.init()


class Address(Form):
    street = TextField('street', validators=[InputRequired()])
    number = IntegerField('number', validators=[InputRequired()])


class User(Form):
    name = TextField('name', validators=[InputRequired()])
    address = FormField(Address, label='address')


@app.route('/', methods=['POST'])
def why_no_work():
    form = User()

    form.from_json(request.json)
    print form.data

    if form.validate():
        return jsonify(success='YEAH')
    else:
        return jsonify(errors=form.errors)


if __name__ == '__main__':
    app.run(debug=True)

我发送以下 JSON 请求

{ …

user下面是使用夹具来设置测试的测试代码示例。

@pytest.fixture
def user():
    # Setup db connection
    yield User('test@example.com')
    # Close db connection

def test_change_email(user):
    new_email = 'new@example.com'
    change_email(user, new_email)
    assert user.email == new_email

如果我想添加批量更改用户电子邮件的功能并且在测试前需要设置 10 个用户，有没有办法使用相同的固定装置在同一测试中生成多个用户对象？