request.args.get('key')给出NULL-Flask [英] request.args.get('key') gives NULL - Flask
问题描述
我试图将变量"email"从我看来的"signup"方法传递给"character"方法.但是，
I am trying to pass the variable 'email' from the 'signup' method in my view to the 'character' method. However,
request.args.get('email')
正在将NULL保存到数据库中.我不知道为什么.
is saving NULL into the database. I cannot figure out why.
将'email'变量传递给'/character'之后，显示的内容如下:
Here is what shows up after passing the 'email' variable to '/character':
http://127.0.0.1:5000/character?email=test%40test.com
这是我在"views.py"中的代码:
Here is my code in 'views.py':
@app.route('/signup', methods=['GET','POST'])
def signup():
if request.method == 'GET':
return render_template('signup.html')
email = request.form['email']
return redirect(url_for('character', email=email))
@app.route('/character', methods=['GET', 'POST'])
def character():
if request.method == 'GET':
return render_template('character.html')
email = request.args.get('email')
password = request.form['password']
name = request.form['username']
temp = model.Actor(request.form['gender'], request.form['height'], request.form['weight'], request.form['physique'])
user = model.User(name, email, password, temp)
db.session.add(temp)
db.session.add(user)
db.session.commit()
return redirect(url_for('movies'))
其他一切都很好，只是电子邮件"没有保存为"test@test.com"，而是保存为NULL.
Everything else works just fine, it is just that 'email' is not being saved as 'test@test.com' and instead as NULL.
谢谢您的帮助！
使用Flask中的会话解决了.
Solved using sessions in Flask.
http://flask.pocoo.org/docs/quickstart/#sessions
推荐答案
提交注册表单时，您正在使用POST.由于您使用的是POST，因此您的表单值会添加到 request.form 中，而不是 request.args 中.
When you submit your signup form, you're using POST. Because you're using POST, your form values are added to request.form, not request.args.
您的电子邮件地址将位于:
Your email address will be in:
request.form.get('email')
如果您访问的URL是/characters?email=someemail@test.com ，并且您不是立即使用以下方式呈现模板:
If you were hitting the URL /characters?email=someemail@test.com, and you weren't rendering a template immediately with:
if request.method == 'GET':
return render_template('character.html')
在您的角色视图中，只有这样才能访问:
in your characters view, only then would you be able to access:
request.args.get('email')
查看 werkzeug请求/响应文档以获取更多信息.
Check out the werkzeug request / response docs for more info.
编辑:这是一个完整的示例(减去模型的内容)
Here's a full working example (minus your models stuff)
app.py
from flask import request, Flask, render_template, redirect, url_for
app = Flask(__name__)
app.debug = True
@app.route('/signup', methods=['GET','POST'])
def signup():
if request.method == 'GET':
return render_template('signup.html')
email = request.form['email']
return redirect(url_for('character', email=email))
@app.route('/character', methods=['POST', 'GET'])
def character():
email_from_form = request.form.get('email')
email_from_args = request.args.get('email')
return render_template('character.html',
email_from_form=email_from_form,
email_from_args=email_from_args)
if __name__ == '__main__':
app.run()
templates/signup.html
templates/signup.html
<html>
Email from form: {{ email_from_form }} <br>
Email from args: {{ email_from_args }}
</html>
templates/character.html
templates/character.html
<html>
<form name="test" action="/character" method="post">
<label>Email</label>
<input type="text" name="email" value="test@email.com" />
<input type="submit" />
</form>
</html>
(通过POST)提交登录表单将填充来自表单的电子邮件
Submitting the signin form (via POST) will populate Email from form
点击网址 http://localhost:5000/character?email=test@email.com (通过GET)将填充来自args的电子邮件
Hitting the url http://localhost:5000/character?email=test@email.com (via GET) will populate Email from args
这篇关于request.args.get('key')给出NULL-Flask的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
