解析/传递值后如何清除表单中的变量Flask WTForms TimeField和解析

如何解决解析/传递值后如何清除表单中的变量Flask WTForms TimeField和解析

不在编程领域,只是一种爱好:-)通常不问问题,但确实陷入了这个问题。对于比我更有知识的人来说,这可能是一个简单的解决方法:-)

具有一个主文件server.py和一个用于解析python文件的表单。

Server.py

from flask import Flask,render_template,jsonify,request,redirect,flash,session,url_for
from flask_wtf.csrf import CSRFProtect,CSRFError
from helper.getbmedata import getBMEData1
from helper.lights import LightsTimeForm,lights_parse


app = Flask(__name__)
CSRFProtect(app)
app.config.update(
    DEBUG=True,WTF_CSRF_ENABLED=False,SECRET_KEY='you-will-never-guess',)


@app.route("/myBME",methods=['POST','GET'])
def getTemps():
    global temp1,hum1,psi1
    if request.method == "GET":
        bmedata = getBMEData1()
        temp1 = bmedata[0]
        hum1 = bmedata[1]
        psi1 = bmedata[2]
    return jsonify(temp=temp1,hum=hum1,psi=psi1)


@app.route("/index",methods=['GET','POST'])
@app.route("/")
def index():
    return render_template('index.html',title="Main page")


@app.route("/lights",'POST'])
def addtime():
    form = LightsTimeForm()
    if form.validate_on_submit():
        lights_parse()
        flash("Account created!","success")
        return redirect(url_for("index"))
    return render_template('lights.html',title='Changing Light Schedule',form=form)


@app.errorhandler(CSRFError)
def handle_csrf_error(e):
    return render_template('csrf_error.html',reason=e.description),400


if __name__ == "__main__":
    app.run(host='0.0.0.0',port=5000,debug=False)

解析单独的文件:

from wtforms.fields.html5 import TimeField
from wtforms import SubmitField
from flask_wtf import FlaskForm

import configparser
from datetime import datetime


def start_time():

    global t1_start_now,t1_stop_now
    config = configparser.ConfigParser()
    config.read('applicat/configs/time_config.ini')

    t1_start_now = config['LIGHTTIME_01']['START01']
    t1_stop_now = config['LIGHTTIME_01']['STOP01']

    t1_start_now = datetime.strptime(t1_start_now,'%H:%M:%S')
    t1_stop_now = datetime.strptime(t1_stop_now,'%H:%M:%S')


class LightsTimeForm(FlaskForm):
    # Let's create form objects
    start_time()

    t1_start = TimeField('Start time:',format='%H:%M',default=t1_start_now)
    t1_stop = TimeField('Stop time:',default=t1_stop_now)

    submit = SubmitField("Submit")


# This code would save the time selected in form to the INI file

def lights_parse():
    form = LightsTimeForm()
    t1_start = form.t1_start.data
    t1_stop = form.t1_stop.data

    tconfig = configparser.ConfigParser()

    time_data = {'LIGHTTIME_01': dict(START01=t1_start,STOP01=t1_stop)}
    tconfig.read_dict(time_data)

    tstart1 = tconfig['LIGHTTIME_01']['START01']
    tstop1 = tconfig['LIGHTTIME_01']['STOP01']

    # This just prints the time to the terminal for us to see that everything was recorded correctly (not necessary)

    print("START:",{tstart1})
    print('STOP:',{tstop1})

    with open('applicat/configs/time_config.ini','w') as configfile:
        tconfig.write(configfile)

我希望每次激活/ lights路由或更新字段中的值时,使用INI文件中的值更新表单的时间字段。我试图将session.clear()放在主server.py中,但这似乎不是修复它的正确方法:-)

它会执行此操作,但仅在重新启动服务器时才执行,而不是在按下“提交”按钮或遵循/ lights路由时才执行。

提前感谢大家!

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