我有一个关于蓝图的问题。我有一个结构像这样的应用程序
app
/run.py
/APP
/__init__.py
/VIEWS
/__init__.py
/general.py
/crud.py
这是代码 http://pastebin.com/bsHsTGAP
run.py
from overwatch import app
app.run()
__init__.py
from flask import Flask, session, g, render_template, request, redirect, url_for, Response
import websiteconfig as config
from flaskext.principal import Identity, Principal, RoleNeed, UserNeed, \
Permission, identity_changed, identity_loaded
app = Flask(__name__)
app.debug = config.DEBUG
app.secret_key = config.SECRET_KEY
principals = Principal(app)
principals._init_app(app)
@app.errorhandler(404)
def not_found(error):
return render_template('404.html'), 404
@app.errorhandler(403)
def page_not_found(e):
session['redirected_from'] = request.url
return redirect(url_for('crud.login'))
# handle login failed
@app.errorhandler(401)
def page_not_found(e):
return Response('<p>Login failed</p>')
from overwatch.views import general
from overwatch.views import crud
app.register_blueprint(general.mod)
app.register_blueprint(crud.mod)
general.py
from flask import Blueprint, render_template, session, redirect, url_for, \
request, flash, g, Response, jsonify
from flaskext.principal import Identity, Principal, RoleNeed, UserNeed, \
Permission, identity_changed, identity_loaded
from .. import principals
mod = Blueprint('general', __name__)
normal_role = RoleNeed('normal')
normal_permission = Permission(normal_role)
@mod.route('/')
@normal_permission.require(http_exception=403)
def index():
return "YOU'RE IN"
crud.py
from flask import Blueprint, render_template, session, redirect, url_for, \
request, flash, g, Response, jsonify, abort, Response
from mongokit import Connection, Document
from db import user_exists, email_exists, return_attribute, check_credentials
from forms import RegistrationForm, LoginForm
from .. import app
from flaskext.principal import Identity, Principal, RoleNeed, UserNeed, \
Permission, identity_changed, identity_loaded
from general import normal_role, normal_permission
mod = Blueprint('crud', __name__)
@mod.route('/login/', methods=['GET', 'POST'])
def login():
form = LoginForm(request.form)
error = None
if request.method == 'POST' and form.validate():
if check_credentials(form.username.data,form.password.data):
identity = Identity(form.username.data)
identity_changed.send(app, identity=identity)
return redirect(session['redirected_from'])
else:
return abort(401)
return render_template('login.html', form=form, error=error)
@app.route("/logout/")
def logout():
for key in ['identity.name', 'identity.auth_type', 'redirected_from']:
try:
del session[key]
except:
pass
return Response('<p>Logged out</p>')
@identity_loaded.connect_via(app)
def on_identity_loaded(sender, identity):
identity.provides.add(normal_role)
问题是,我似乎将很多东西导入到很多东西中。现在它有效。如果我转到由 general.py 蓝图处理并使用 normal_permission 保护的分页索引,它会重定向到由 crud.py 蓝图处理的/login,如果登录则重定向到索引。再说一次,现在它......可以工作,但是......它也感觉非常肮脏和不干净而且......
欢迎提出任何建议。如果这不是解决它的方法,我愿意学习。我不想有一些.. 可以工作的代码。
感谢您抽出宝贵时间阅读并回答。
ps。如果我在这里粘贴了太多代码,请告诉我,我会编辑它。
最佳答案
要从您的蓝图 View 访问当前应用程序,您应该使用 flask.current_app
对象,它是当前应用程序的代理(例如,它在 flask 扩展中使用)。
关于您的代码,除了未使用的导入,我认为它组织得很好,但我无法说出 principal
部分,因为我从未使用过它。
关于python - Flask 蓝图正确使用,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/7085438/