[英]WTForms - DateTimeLocalField data is None after submit
After form is submitted with a POST
request, every Field
data has its value, except DateTimeLocalField
.使用POST
请求提交表单POST
,每个Field
数据都有其值,但DateTimeLocalField
除外。 Accessing DateTimeLocalField's data value is a type of None
.访问 DateTimeLocalField 的数据值是一种None
。
Form形式
class ArticleForm(FlaskForm):
name = StringField('Name', validators=[DataRequired()])
category = SelectField(u'Category', choices=categories.choices)
town = StringField('Town', validators=[DataRequired()])
minimal_price = IntegerField('Minimal price')
article_image = FileField('Article_image', validators=[FileRequired()])
time_left = DateTimeLocalField('Time to end', validators=[InputRequired()],
format='%Y-%m-%d %H:%M:%S')
description = TextAreaField('Description', validators=[DataRequired()])
Validation: ( tested with is_submitted
, all work except for article_form.time_left.data
which is None
)验证:(使用is_submitted
测试,除article_form.time_left.data
为None
之外的所有工作)
if article_form.validate_on_submit():
new_article = Article(name=article_form.name.data,
category=article_form.category.data,
town=article_form.town.data,
minimal_price=article_form.minimal_price.data,
article_image=name,
time_left=article_form.time_left.data, # <-- None
description=article_form.description.data,
user_id=current_user.id)
Any help to get data from DateTimeLocalField
?从DateTimeLocalField
获取数据有什么帮助吗?
Try changing the format of the DateTimeLocalField
from尝试更改DateTimeLocalField
的格式
format='%Y-%m-%d %H:%M:%S'
to:到:
format='%Y-%m-%dT%H:%M'
Tip: you can print the actual content of the input field prior to the validation to confirm the correct formatting of the DateTimeLocalField
field.提示:您可以在验证之前打印输入字段的实际内容,以确认DateTimeLocalField
字段的正确格式。
Use wtforms.fields.html5.DateTimeLocalField
instead of wtforms.DateTimeLocalField
.使用wtforms.fields.html5.DateTimeLocalField
而不是wtforms.DateTimeLocalField
。 Set the format with date and time separated by a 'T'.设置日期和时间以“T”分隔的格式。 If you would want the current time as the default value, set default parameter.如果您希望当前时间作为默认值,请设置默认参数。
from wtforms.fields.html5 import DateTimeLocalField
class InterviewForm(Form):
posted = DateTimeLocalField('Posted:', default=datetime.today, format='%Y-%m-%dT%H:%M')
I did extensive research on the same problem, this is a hack but I still got the timestamp from the tag which looked like:我对同一问题进行了广泛的研究,这是一个黑客,但我仍然从标签中获得了时间戳,看起来像:
<input id="time_left" name="time_left" required type="datetime-local" value="2018-11-15T04:44">
You basically search for the timestamp from the tag returned by the tag您基本上是从标签返回的标签中搜索时间戳
date = re.search('(\d{4})[/.-](\d{2})[/.-](\d{2})[T](\d{2})[:](\d{2})',
str(form.time_left)).group())
Let me know if the solution worked for you or if found a better solution to the problem.让我知道该解决方案是否适合您,或者是否找到了更好的问题解决方案。
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