我试图在验证失败时消除页面刷新时的数据丢失。在验证错误之后刷新表单时，除了导致错误的字段外，所有字段都为空。如何刷新页面，显示验证错误并且仍然填充所有div中的所有字段？
提前致谢！
我的代码显示如下：
views.py
class CreateListingView(CreateView):
template_name = 'listing/listing.html'
model = Listing
form_class = ListingForm
# success_url = '/add-listing/'
def get_success_url(self):
return reverse('store') + "?success=true"
def dispatch(self, request, *args, **kwargs):
if self.request.user.is_authenticated():
if not self.request.user.has_company():
return HttpResponseRedirect(reverse('get_paid'))
elif not self.request.user.has_shipping():
return HttpResponseRedirect(reverse('get_paid'))
elif not self.request.user.has_bank():
return HttpResponseRedirect(reverse('get_paid'))
else:
return super(CreateListingView, self).dispatch(request, *args, **kwargs)
else:
return HttpResponseRedirect(reverse('create_user'))
def get_initial(self):
return {'company_profile': self.request.user.company}
def get_form_kwargs(self):
kwargs = super(CreateListingView, self).get_form_kwargs()
if self.request.method in ('POST', 'PUT'):
kwargs['data']['price'] = kwargs['data']['price'].replace(',','')
return kwargs
forms.py
class ListingForm(forms.ModelForm):
caliber_firearm = forms.CharField(required=False, widget=forms.TextInput(attrs={'class': 'req'}))
caliber_ammo = forms.CharField(required=False)
tags = forms.CharField(required=False)
img_0 = forms.ImageField(required=False, widget=forms.FileInput(attrs={'class': 'image-input'}))
img_1 = forms.ImageField(required=False, widget=forms.FileInput(attrs={'class': 'image-input'}))
img_2 = forms.ImageField(required=False, widget=forms.FileInput(attrs={'class': 'image-input'}))
img_3 = forms.ImageField(required=False, widget=forms.FileInput(attrs={'class': 'image-input'}))
img_4 = forms.ImageField(required=False, widget=forms.FileInput(attrs={'class': 'image-input'}))
class Meta:
model = Listing
exclude = ['copy', 'caliber']
widgets = {
'title': forms.TextInput(attrs={'class': 'title-listing'}),
'listing_type': forms.RadioSelect(),
'upc': forms.TextInput(attrs={'class': 'upc'}),
'category': forms.Select(attrs={'class': 'short-input', 'required': 'True'}),
'price': forms.TextInput(attrs={'class': 'price dollar req'}),
'list_price': forms.TextInput(attrs={'class': 'list_price_input'}),
'quantity': forms.TextInput(attrs={'class': 'qty req'}),
'description': forms.Textarea(attrs={'class': 'description req'}),
'estimated_ship_days': forms.TextInput(attrs={'class': 'qty req', 'placeholder': 'Days'}),
'capacity': forms.TextInput(attrs={'class': 'req'}),
'weight_pounds': forms.TextInput(attrs={'class': 'weight req', 'placeholder': 'Pounds'}),
'weight_ounces': forms.TextInput(attrs={'class': 'weight', 'placeholder': 'Ounces'}),
'barrel_length': forms.TextInput(attrs={'class': 'req', 'placeholder': 'Inches'}),
'overall_length': forms.TextInput(attrs={'class': 'req', 'placeholder': 'Inches'}),
'company_profile': forms.HiddenInput(),
'shipping_zip_code': forms.TextInput(attrs={'placeholder': 'Your shipping zip code'}),
}
error_messages = empty_errors
def clean(self):
listing_type = self.cleaned_data.get('listing_type')
if self.cleaned_data.get('img_0') is None and \
self.cleaned_data.get('img_1') is None and \
self.cleaned_data.get('img_2') is None and \
self.cleaned_data.get('img_3') is None and \
self.cleaned_data.get('img_4') is None:
self.add_error('img_0', 'One photo must be uploaded')
if listing_type == 'Firearm':
if self.cleaned_data.get('caliber_firearm', None) is None:
self.add_error('caliber_firearm', 'This field is required')
else:
self.cleaned_data['caliber'] = self.cleaned_data.get('caliber_firearm')
if self.cleaned_data.get('capacity', None) is None:
self.add_error('capacity', 'This field is required')
if self.cleaned_data.get('weight_pounds', None) is None:
self.add_error('weight_pounds', 'This field is required')
if self.cleaned_data.get('weight_ounces', None) is None:
self.add_error('weight_ounces', 'This field is required')
if self.cleaned_data.get('barrel_length', None) is None:
self.add_error('barrel_length', 'This field is required')
if self.cleaned_data.get('overall_length', None) is None:
self.add_error('overall_length', 'This field is required')
elif listing_type == 'Ammo':
if self.cleaned_data.get('caliber_ammo', None) is not None:
self.cleaned_data['caliber'] = self.cleaned_data.get('caliber_ammo')
if self.cleaned_data.get('shipping_zip_code') is None or \
self.cleaned_data.get('shipping_weight') is None or \
self.cleaned_data.get('shipping_height') is None or \
self.cleaned_data.get('shipping_length') is None or \
self.cleaned_data.get('shipping_width') is None:
self.add_error('shipping_weight', 'Shipping information is not complete')
return self.cleaned_data
模板
{% extends 'base.html' %}
{% load staticfiles %}
{% block head %}
<title>Dealer Direct by FFL Design</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet"
type="text/css"
href="{% static 'listing/css/listing.css' %}">
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script src="{% static 'listing/js/listing.js' %}"></script>
<!-- Start of ffldesign Zendesk Widget script -->
<script>/*<![CDATA[*/window.zEmbed||function(e,t){var n,o,d,i,s,a=[],r=document.createElement("iframe");window.zEmbed=function(){a.push(arguments)},window.zE=window.zE||window.zEmbed,r.src="javascript:false",r.title="",r.role="presentation",(r.frameElement||r).style.cssText="display: none",d=document.getElementsByTagName("script"),d=d[d.length-1],d.parentNode.insertBefore(r,d),i=r.contentWindow,s=i.document;try{o=s}catch(c){n=document.domain,r.src='javascript:var d=document.open();d.domain="'+n+'";void(0);',o=s}o.open()._l=function(){var o=this.createElement("script");n&&(this.domain=n),o.id="js-iframe-async",o.src=e,this.t=+new Date,this.zendeskHost=t,this.zEQueue=a,this.body.appendChild(o)},o.write('<body onload="document._l();">'),o.close()}("https://assets.zendesk.com/embeddable_framework/main.js","ffldesign.zendesk.com");/*]]>*/</script>
<!-- End of ffldesign Zendesk Widget script -->
{% endblock %}
{% block body %}
<body>
<div class="listing">
<p class="ffl">Add a new listing</p>
<form action="{% url 'add-listing' %}" method="post" enctype="multipart/form-data">
<div class="errors">{{ form.shipping_weight.errors }}</div>
{% csrf_token %}
<div class="photos">
<p class="ffl-small">Photos</p>
<p class="desc" id="photos-desc">Must add at least one photo.</p>
<ul>
<li id="photo_0">
<div id="input_photo_0">
<img src="{% static 'listing/images/add-photo.png' %}" class="add-photo">
<p><button type="button" class="active-button">Add Photo</button></p>
{{ form.img_0 }}
</div>
<div id="display_photo_0" class="hidden">
<img src="" width="143" height="105" id="img_view_0" class="item-image">
<button type="button" class="remove-zoom active-button magnify"><img src="{% static 'listing/images/zoom.png' %}" width="18" height="18"></button><button type="button" class="remove-zoom active-button delete_photo"><img src="{% static 'listing/images/remove.png' %}"></button>
</div>
</li>
<li id="photo_1">
<div id="input_photo_1">
<img src="{% static 'listing/images/add-photo.png' %}" class="add-photo">
<p><button type="button" class="active-button">Add Photo</button></p>
{{ form.img_1 }}
</div>
<div id="display_photo_1" class="hidden">
<img src="" width="143" height="105" id="img_view_1" class="item-image">
<button type="button" class="remove-zoom active-button magnify"><img src="{% static 'listing/images/zoom.png' %}" width="18" height="18"></button><button type="button" class="remove-zoom active-button delete_photo"><img src="{% static 'listing/images/remove.png' %}"></button>
</div>
</li>
<li id="photo_2">
<div id="input_photo_2">
<img src="{% static 'listing/images/add-photo.png' %}" class="add-photo">
<p><button type="button" class="active-button">Add Photo</button></p>
{{ form.img_2 }}
</div>
<div id="display_photo_2" class="hidden">
<img src="" width="143" height="105" id="img_view_2" class="item-image">
<button type="button" class="remove-zoom active-button magnify"><img src="{% static 'listing/images/zoom.png' %}" width="18" height="18"></button><button type="button" class="remove-zoom active-button delete_photo"><img src="{% static 'listing/images/remove.png' %}"></button>
</div>
</li>
<li id="photo_3">
<div id="input_photo_3">
<img src="{% static 'listing/images/add-photo.png' %}" class="add-photo">
<p><button type="button" class="active-button">Add Photo</button></p>
{{ form.img_3 }}
</div>
<div id="display_photo_3" class="hidden">
<img src="" width="143" height="105" id="img_view_3" class="item-image">
<button type="button" class="remove-zoom active-button magnify"><img src="{% static 'listing/images/zoom.png' %}" width="18" height="18"></button><button type="button" class="remove-zoom active-button delete_photo"><img src="{% static 'listing/images/remove.png' %}"></button>
</div>
</li>
<li id="photo_4">
<div id="input_photo_4">
<img src="{% static 'listing/images/add-photo.png' %}" class="add-photo">
<p><button type="button" class="active-button">Add Photo</button></p>
{{ form.img_4 }}
</div>
<div id="display_photo_4" class="hidden">
<img src="" width="143" height="105" id="img_view_4" class="item-image">
<button type="button" class="remove-zoom active-button magnify"><img src="{% static 'listing/images/zoom.png' %}" width="18" height="18"></button><button type="button" class="remove-zoom active-button delete_photo"><img src="{% static 'listing/images/remove.png' %}"></button>
</div>
</li>
<li class="desc">
For best results, use high quality jpeg or gif files that are at least 570 px wide.
</li>
</ul>
</div>
<div class="select-type">
<p class="ffl-small">Select listing type</p>
{% for radio in form.listing_type %}
{{ radio }}
{% endfor %}
{# <label><input type="radio" name="listing" checked>Firearms</label>#}
{# <label><input type="radio" name="listing">Ammo</label>#}
{# <label><input type="radio" name="listing">Optics</label>#}
{# <label><input type="radio" name="listing">Apparel</label>#}
{# <label><input type="radio" name="listing">Other</label>#}
</div>
<div class="details">
<p class="ffl-small">Listing Details</p>
<p><label for="id_title">Title<span>*</span></label><input type="text" id="id_title" name="title" class="title-listing" required><span class="desc">Describe your item using words and phrases people would use in a search.</span>
<span class="title-error">Error: you cannot use a period in the title name.</span>
</p>
<p><label for="id_upc">UPC</label><input type="text" name="upc" id="id_upc" class="upc" maxlength="12"></p>
<p><label for="id_category">Category<span>*</span></label>
{{form.category}}
</p>
<p>
<label for="id_price">Cost<span>*</span></label><input type="number" name="price" id="id_price" class="price dollar req" min=0 step="0.01">
<span class="list_price_text">List Price:<input type="number" name="list_price" id="id_list_price" class="list_price_input" step="0.01" readonly></span>
<span class="list_price_desc">The "List Price" is automatically calculated with Dealer Direct seller fees. This price is what the dealer will see. The "Cost" field is the amount you will be paid.</span>
</p>
<p><label for="id_quantity">Quantity<span>*</span></label><input type="text" name="quantity" id="id_quantity" class="qty req"></p>
<p><label for="id_description" class="textarea-label">Description<span>*</span></label><textarea name="description" id="id_description" class="description req"></textarea></p>
<p><label for="id_estimated_ship_days">Days to ship:<span>*</span></label><input type="text" name="estimated_ship_days" id="id_estimated_ship_days" class="qty req" placeholder="days"></p>
{% for field in form.hidden_fields %}
{{ field }}
{% endfor %}
</div>
<div class="details ammo type-ammo">
<p class="ffl-small">Ammo Details</p>
<p><label for="id_rounds">Rounds per box</label>{{ form.rounds }}</p>
<p><label for="id_caliber_ammo">Caliber/Gauge</label>{{ form.caliber_ammo }}</p>
<p><label for="id_weight">Weight</label>{{ form.weight }}</p>
<p><label for="id_muzzle_velocity">Muzzle Velocity</label>{{ form.muzzle_velocity }}</p>
<p><label for="id_length">Length</label>{{ form.length }}</p>
<p><label for="id_ammo_type">Type</label>{{ form.ammo_type }}</p>
</div>
<div class="details ammo type-firearm">
<p class="ffl-small">Firearm Details</p>
<p><label for="id_caliber_firearm">Caliber<span>*</span></label>{{ form.caliber_firearm }}</p>
<p><label for="id_capacity">Capacity<span>*</span></label>{{ form.capacity }}</p>
<p><label for="id_weight_pounds">Weight<span>*</span></label>{{ form.weight_pounds }}<label for="id_weight_ounces" class="weight-label"></label>{{ form.weight_ounces }}</p>
<p><label for="id_barrel_length">Barrel Length<span>*</span></label>{{ form.barrel_length }}</p>
<p><label for="id_overall_length">Overall Length<span>*</span></label>{{ form.overall_length }}</p>
<p><label for="id_finish">Finish</label>{{ form.finish }}</p>
</div>
<div class="details optics type-optics">
<p class="ffl-small">Optics Details</p>
<p><label for="id_magnification">Magnification</label><input id="id_magnification" name="magnification" type="text"></p>
<p><label for="id_field_of_view">Field of View</label><input id="id_field_of_view" name="field_of_view" type="text"></p>
<p><label for="id_reticle">Reticle</label><input id="id_reticle" name="reticle" type="text"></p>
<p><label for="id_objective_lens">Objective Lens</label><input id="id_objective_lens" name="objective_lens" type="text"></p>
<p><label for="id_eye_relief">Eye Relief</label><input id="id_eye_relief" name="eye_relief" type="text"></p>
<p><label for="id_max_elevation_adjustment">Max Elevation Adjustment</label><input id="id_max_elevation_adjustment" name="max_elevation_adjustment" type="text"></p>
<p><label for="id_max_windage_adjustment">Max Windage<br/>Adjustment</label><input id="id_max_windage_adjustment" name="max_windage_adjustment" type="text"></p>
<p><label for="id_length_optics">Length</label><input id="id_length_optics" name="length" type="text"></p>
<p><label for="id_weight_optics">Weight</label><input id="id_weight_optics" name="weight" type="text"></p>
<p><label for="id_battery">Battery</label><input id="id_battery" name="battery" type="text"></p>
<p><label for="id_dot_size">DOT Size</label><input id="id_dot_size" name="dot_size" type="text"></p>
<p><label for="id_finish_optics">Finish</label><input id="id_finish_optics" name="finish" type="text"></p>
</div>
<div class="details apparel type-apparel">
<p class="ffl-small">Apparel Details</p>
<p><label for="id_shirt_size">Size</label>
{{ form.shirt_size }}
</p>
<p><label for="id_shirt_color">Color</label><input id="id_shirt_color" name="shirt_color" type="text"></p>
</div>
<div class="search">
<p class="ffl-small">Search Terms</p>
<p class="desc">Help dealers find this product by using accurate and descriptive words or phrases.</p>
<ul class="search-ul">
<li>
<span class="tags"><label for="id_tags">Tags</label></span>
<span class="desc">Optional</span>
</li>
<li>
<label><input type="text" name="tags" id="id_tags" placeholder="example: ar15, iron sights, glock holster, etc" class="tag-input"><span class="desc left">10 left</span></label>
<p class="tags-wrapper">must separate each tag by a comma</p>
<p id="tag-list"></p>
</li>
<li>
<span class="desc">
We highly recommend using all 10 tags for<br />your listing to get
found. Use words you think<br />dealers would use to search for this product.
</span>
</li>
</ul>
</div>
<div class=" details shipping">
<p class="ffl-small">Shipping</p>
<p class="desc">For realistic shipping expectations, please provide accurate product shipping information below.</p>
<div class="errors">{{ form.shipping_zip_code.errors }}{{ form.shipping_weight.errors }}</div>
{% comment %}
<p class="zip"><label for="">Zip Code</label><input name="" type="text" placeholder="Your shipping zip code"></p>
<p class="shipping-weight"><label for="">Weight</label><input name="" type="text"><label for=""></label><input name="" type="text"></p>
<p class="dimensions"><label for="">Dimensions</label><input name="" type="text"><label for=""></label><input name="" type="text"><label for=""></label><input name="" type="text"></p>
{% endcomment %}
<p class="zip">
<label for="id_shipping_zip_code">Zip Code</label>
{{form.shipping_zip_code}}
</p>
<p class="shipping-weight">
<label for="id_shipping_weight">Weight</label>
{{form.shipping_weight}}
</p>
<p class="dimensions">
<label for="">Dimensions</label>
{{form.shipping_length}}
<label for=""></label>
{{form.shipping_width}}
<label for=""></label>
{{form.shipping_height}}
</p>
</div>
<button class="submit-btn active-button">Submit Listing</button>
</form>
<div class="wrapper">
<div class="">
<button class="active-button">Close</button>
<img src="{% static 'listing/images/example-img.png' %}">
</div>
</div>
</div>
<div id="spacer"></div>
</body>
{% endblock %}
答案 0 :(得分：0)
比我想象的要简单得多。只需要添加＆＃39; value =＆＃34; {{form.field_name.value}}＆＃34;＆＃39;每个输入。
<input type="text" class="foo" value="{{ form.field_name.value }}"/>
我还发现每个django模板标签都已保存。用django <input>变量替换每个{{ form.field_name }}标记也解决了这个问题。