WTForms 日期时间字段时间未更新

Question

我为日期时间字段定义了 wtforms，如下所示：

stime = DateTimeField(label='Start time',validators=[validators.InputRequired()],format = "%d%b%Y %H:%M",default= datetime.now(timezone('UTC')))
    etime = DateTimeField(label='End time',validators=[validators.InputRequired()],format = "%d%b%Y %H:%M",default= datetime.now(timezone('UTC')))

在 HTML 页面调用此字段如下：

<form method= POST action="{{ url_for('input_ext') }}">
            <table>
              {% for field in form %}
                <tr>
                            <td>{{ field.label }}*</td><td>{{ field }}</td>
                </tr>
              {% endfor %}
            </table>
<input id = "generate" name="generate" type=submit value=Next></form>

烧瓶代码：

from flask import Flask
from flask import render_template
from flask import request
from model import InputForm

app = Flask(__name__)
@app.route('/',methods = ['GET','POST'])
#select interface and for selected interfaces pullup circuit info
def provideinput():
    global devices
    devices = ''
    form = InputForm(request.form)
    return render_template("utctime.html", form=form)
if __name__ == "__main__":
    app.run(debug=True,host="10.23.102.116",port=82)

问题是，我在 UTC 中获取时间，并且每当我重新加载时都不会更新到当前的 UTC 值 page.It 与我开始运行 python 代码时保持相同。定义 DateTimeField 有什么问题吗？

修改如下，还是不行：

  stime = DateTimeField(label='Start time(EDT)', validators=[validators.InputRequired()], format="%d%b%Y %H:%M",
                          default=datetime.today)
    etime = DateTimeField(label='End time(EDT)', validators=[validators.InputRequired()], format="%d%b%Y %H:%M",
                          default=datetime.today)

Answer 1

答案在wtforms+flask today's date as a default value

之前有人引用过这个。糟糕，我在错误的地方编辑。

更改为：

stime = DateTimeField(label='Start time(EDT)',validators=[validators.InputRequired()],format = "%d%b%Y %H:%M",default= datetime.utcnow)
    etime = DateTimeField(label='End time(EDT)',validators=[validators.InputRequired()],format = "%d%b%Y %H:%M",default= datetime.utcnow)

WTForms 日期时间字段时间未更新

WTForms datetime field time is not updating

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