用于捕获日期的Python表单&；炼金术时间到了

我试图使用python和flask中的wtf_表单让用户输入日期和时间，然后将其保存到Sqlalchemy。我将分享我所拥有的，但现在我的烧瓶表单一旦填充，当我提交表单时，将不接受日期条目。它没有给我任何错误，所以我确信它是不匹配的。任何想法都非常感谢。非常感谢你的帮助。我目前正在使用SQLite作为我的数据库

class Events(db.Model):

    __tablename__ = 'events'
    id = db.Column(db.Integer, primary_key=True)
    eventname = db.Column(db.Text(64))
    eventstart = db.Column(db.DateTime, nullable=False)
    eventstop = db.Column(db.DateTime, nullable=False)

    def __init__(
        self, eventname, eventstart, eventstop
    ):
        self.eventname = eventname
        self.eventstart = eventstart
        self.eventstop = eventstop

我的forms.py是：

# /myproject/events
from flask_wtf import FlaskForm
from wtforms import StringField, SubmitField, IntegerField
from wtforms.validators import DataRequired
from wtforms.fields import DateField


# Building the form in order to get a date picker and save it to the database.
class RegistrationForm(FlaskForm):
    eventname = StringField('Event Name', validators=[DataRequired()])
    eventstart = DateField(
        'Enter start date and time', id='datepick', validators=[DataRequired()]
    )
    eventstop = DateField(
        'Enter end date and time', id='datepick', validators=[DataRequired()]
    )
    submit = SubmitField('Register!')

My view.py是：

from myproject import app, db
from flask import (
    render_template, redirect, url_for, flash,
    Blueprint, request
)
from flask_login import login_user, login_required, logout_user
from myproject.models import Events
from myproject.events.forms import RegistrationForm
import validators
from flask_bootstrap import Bootstrap

Bootstrap(app)

events_blueprint = Blueprint(
    'events', __name__,
    template_folder='templates/events'
)

# @login_required
@events_blueprint.route('/add', methods=['GET', 'POST'])
def register():
    try:
        form = RegistrationForm()

        if form.validate_on_submit():
            event = Events(
                eventname=form.eventname.data,
                eventstart=form.eventstart.data,
                eventstop=form.eventstop.data,
            )

            db.session.add(event)
            db.session.commit()
            flash("Thank you for registering your event.")
            return redirect(url_for('list_event'))

        return render_template('add.html', form=form)
    except Exception as e:
        print(e)

最后，我的HTML是：

{% extends "bootstrap/base.html" %}
{% import "bootstrap/wtf.html" as wtf %}

{% block title %}This is an example page{% endblock %}

{% block head %}
  {{ super() }}
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datetimepicker/4.17.47/css/bootstrap-datetimepicker.min.css">
{% endblock %}

{% block content %}
  <div class="container">
    <h1>Hello, Bootstrap</h1>
    <div class="row">
      <div class='col-sm-6'>
        <form method="POST">
          {{form.hidden_tag()}}
          {{form.eventname.label}}{{form.eventname()}}<br><br>
          {{form.eventstart.label}}{{form.eventstart()}}<br><br>
          {{form.eventstop.label}}{{form.eventstop()}}<br><br>
          {{form.submit()}}
      </form>
      </div>
    </div>
  </div>
{% endblock %}

{% block scripts %}
  {{ super() }}
  <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.18.1/moment.min.js"></script>
  <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datetimepicker/4.17.47/js/bootstrap-datetimepicker.min.js"></script>
  <script type="text/javascript">
    $(function () {
      $('#datepick').datetimepicker();
    });
  </script>
{% endblock %}

{%extends“bootstrap/base.html”%}
{%import“bootstrap/wtf.html”作为wtf%}
{%block title%}这是一个示例页面{%endblock%}
{%block head%}
{{super（）}}
{%endblock%}
{%block content%}
你好，Bootstrap
{{form.hidden_tag（）}}
{{form.eventname.label}{{form.eventname（）}}


{{form.eventstart.label}{{form.eventstart（）}}


{{form.eventstop.label}{{form.eventstop（）}}


{{form.submit（）}}
{%endblock%}
{%block scripts%}
{{super（）}}
$（函数（）{
$（'#datepick'）。datetimepicker（）；
});
{%endblock%}

如果没有错误，您如何知道在提交表单时它不接受日期条目？好问题。我将尝试插入一个if-print语句，看看它是否失败，然后了解它失败的字段。你将如何着手找出错误呢？非常感谢。在您的控制台/终端中，我没有让它在

if表单之后打印。请在提交（）时进行验证：

，这意味着它没有进行验证。如何更好地解决验证问题？谢谢。尝试在view.py文件中用Try-catch块包围register函数。让我们看看是否有任何异常（请记住将异常与catch exception一起打印为e:print（e）