我是个新手。我想要的是显示这些值,当我单击submit按钮时,值可以被发回。然而,第一步已经完成,但是它什么也没有返回。我已经检查了request.form
有数据。以下是我的代码:
from flask_wtf import Form
from wtforms import TextField,SelectField,FieldList,SubmitField,FormField # 不能引入* 否则会顶掉前面的Form,导致validate方法不能用
from wtforms.validators import DataRequired
from flask import Flask,render_template,request,redirect,url_for,flash
import pandas as pd
import wtforms_json
import json
wtforms_json.init()
app = Flask(__name__)
app.config['SECRET_KEY'] = 'you-will-never-guess'
dat = pd.read_csv('trading_config.csv',dtype={'code': str},encoding='gbk')
js = dat.to_dict(orient = 'records')
#js = wtforms_json.flatten_json(json.loads(js))
class TradingForm(Form):
code = TextField('code')
trading_stage = SelectField('trading_stage',
choices=[('wait','wait'),('signal','signal'),
('exit','exit'), ('exclude','exclude')],default = '' )
trading_mode = SelectField('trading_mode',
choices=[('-1','-1'),('1','1'),('2','2')],default = '')
trading_account = TextField('trading_account')
submit = SubmitField("Send")
class ListForm(Form):
trading = FieldList(FormField(TradingForm), min_entries = 5)
@app.route('/success', methods=('GET', 'POST'))
def success():
return render_template('success.html')
@app.route('/', methods=('GET', 'POST'))
def submit():
form = ListForm()
trading_form = TradingForm()
if 'update' in request.form and request.method =='POST':
if form.validate == True:
flash(form.errors)
if form.validate_on_submit() == False:
flash(form.data)
flash(request.form)
flash(form.errors)
else:
print form
return redirect (url_for('success'))
#return render_template('hello.html', form=form,trading_form = TradingForm())
for item in js:
trading_form = TradingForm(**item)
form.trading.append_entry(trading_form)
return render_template('hello.html', form=form)
if __name__ == '__main__':
app.run(debug = True)
而html
是:
Get
是,它工作得很好:
当我单击按钮时,表单数据变成空数据集:
{'trading': [{'trading_account': u'', 'code': u'', 'trading_stage': u'', 'submit': False, 'trading_mode': u''}, {'trading_account': u'', 'code': u'',
但是,request.form
拥有所有数据,这个过程有什么问题?在
可能问题是
request.form
是不可变的多段式的('code',u'600844'),('code',u'600848'),('code',u'601888'),不是由形式构造的(请求.窗体)在相关问题 更多 >
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