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Ich versuche die Email und Telefonnummer in meinem Formular zu bestätigen. Dies geschieht, aber wenn dieser Validierungsfehler aufgetreten ist, kann das Dateifeld die hochgeladene Datei nicht enthalten. Meine Form ist unten angegeben.Dateifeld kann die Datei nicht halten, wenn ein anderer Validierungsfehler in wtforms aufgetreten ist
forms.py
from wtforms import Form ,SelectField,StringField, validators , IntegerField , DateField , SelectMultipleField , FileField ,widgets
from wtforms.validators import StopValidation, ValidationError
def customvalidatorForAdImage(form, field):
allowed_file = ['jpg','jpeg','png','gif']
if form.image.data:
if form.image.data.split('.',1)[1] not in allowed_file:
raise ValidationError("Please enter a valid image file")
class CreateAdForm(Form):
ad_name = StringField("Ad Name", [validators.DataRequired("Ad name is required")])
advertiser_name =SelectField("Advertiser Name" , coerce=int)
ad_type = SelectField("Ad Type" , choices =zip(ad_type_categories , ad_type_cat_lebels))
image = FileField("Image" , [customvalidatorForAdImage, validators.DataRequired("Image is required")])
url = StringField("URL" , [validators.DataRequired("URL is required")])
contact_name = StringField("Contact Name" , [validators.DataRequired("Contact Name is required")])
contact_email = StringField("Contact Email" , [validators.DataRequired("Contact Email is required"), validators.Email("Please enter a valid email")])
contact_phone = StringField("Contact Phone" , [validators.DataRequired("Contact Phone is required"), validators.Regexp("^(\+\d{1,3}[- ]?)?\d{10}$", message="Please enter a valid phone number")])
status = SelectField("Status" , choices = zip(status_categories , status_cat_lebles))
Und meine ad.html Datei ist unten angegeben:
ad.html
{% extends "base.html" %}
{% set title = "Admin Manage Advertisers" %}
{% block head_css %}
{% endblock %}
{% block main_body %}
<div class="container">
<div class="row">
<div class="col-sm-8 col-sm-offset-2">
{% if err_msg %}
<div class="alert alert-danger alert-msg-with-icon" role="alert">
<i class="icon-exclamation-sign" style="font-size:60px;color:#B94A48;"></i>
<p>{{err_msg}}<br> If you believe this message is in error, please reach out to <a href='mailto:[email protected]' class="alert-link">[email protected]</a></p>
</div>
{% endif %}
<h1 class="text-center"><strong>Create a New Ad</strong></h1>
<form action="/create-ad" enctype="multipart/form-data" method="POST">
<div class="form-group">
{{ ad_form.ad_name.label }}
{{ ad_form.ad_name(class_="form-control", **{"data-parsley-required":"true",
"data-parsley-required-message":"Ad name is required"}) }}
<span class="help-block"></span>
</div>
<div class="row">
<div class="col-md-5">
<div class="form-group" >
{{ ad_form.advertiser_name.label }}
{{ ad_form.advertiser_name(class_="form-control" , **{"data-parsley-required":"true",
"data-parsley-required-message":"Advertiser name is required"}) }}
<span class="help-block"></span>
</div>
</div>
<div class="col-md-5 col-md-offset-2">
<div class="form-group" >
{{ ad_form.ad_type.label }}
{{ ad_form.ad_type(class_="form-control", **{"data-parsley-required":"true",
"data-parsley-required-message":"Ad type is required"
}) }}
<span class="help-block"></span>
</div>
</div>
</div>
<div class="row">
<div class="col-md-5">
<div class="form-group {{ 'has-error' if ad_form.image.errors}}">
{{ ad_form.image.label }}
{{ ad_form.image(**{"data-parsley-required":"true",
"data-parsley-required-message":"Image is required",
}) }}
<span class="help-block">{{ ad_form.image.errors[0] if ad_form.image.errors }}</span>
</div>
</div>
<div class="col-md-5 col-md-offset-2">
<div class="form-group" >
{{ ad_form.status.label }}
{{ ad_form.status(class_="form-control", **{"data-parsley-required":"true",
"data-parsley-required-message":"Status is required"
}) }}
<span class="help-block"></span>
</div>
</div>
</div>
<div class="form-group" >
{{ ad_form.url.label }}
{{ ad_form.url(class_="form-control", **{"data-parsley-required":"true",
"data-parsley-required-message":"URL is required"
}) }}
<span class="help-block"></span>
</div>
<div class="form-group">
{{ ad_form.contact_name.label }}
{{ ad_form.contact_name(class_="form-control", **{"data-parsley-required":"true",
"data-parsley-required-message":"Contact Name is required"
}) }}
<span class="help-block"></span>
</div>
<div class="form-group {{ 'has-error' if ad_form.contact_email.errors}}" >
{{ ad_form.contact_email.label }}
{{ ad_form.contact_email(class_="form-control", **{"data-parsley-required":"true",
"data-parsley-required-message":"Contact Email is required"
}) }}
<span class="help-block">{{ ad_form.contact_email.errors[0] if ad_form.contact_email.errors }}</span>
</div>
<div class="form-group {{ 'has-error' if ad_form.contact_phone.errors}}" >
{{ ad_form.contact_phone.label }}
{{ ad_form.contact_phone(class_="form-control", **{"data-parsley-required":"true",
"data-parsley-required-message":"Contact Phone is required"
}) }}
<span class="help-block">{{ ad_form.contact_phone.errors[0] if ad_form.contact_phone.errors }}</span>
</div>
<button type="submit" class="btn btn-primary btn-block">SUBMIT</button>
</form>
</div>
</div>
</div>
{% endblock %}
{% block contact_us_block %}
{% endblock %}
{% block js_block %}
{{super()}}
<script>
$(document).ready(function(){
$("div.container form").parsley({
successClass: "",
errorClass: "has-error",
classHandler: function(el) {
return el.$element.closest(".form-group");
},
errorsWrapper: "<span class='help-block'></span>",
errorTemplate: "<span></span>"
});
})
</script>
{% endblock %}
Und sehen Sie den Bildschirm-shot vor Form submit.Here I habe eine Bilddatei und eine ungültige E-Mail ausgewählt. 
Aber wenn ich auf den Absenden-Button klicke, wird der E-Mail-Validierungsfehler angezeigt, aber die ausgewählte Bilddatei kann nicht gespeichert werden. Wie kann ich das beheben? Sehen Sie sich den Screenshot nach dem Senden an. Es zeigte "Keine Datei ausgewählt" im Dateifeld an, aber ich habe die Datei bereits ausgewählt. Vielen Dank. 