我想在网站中实现多文件上传功能。该网站上已经具有上传功能,但仅适用于单个文件。我正在随意跟踪Simple Is Better Than Complex: Django Multiple Files Upload Using Ajax。
我的代码:
视图-> mulit_upload.py
class BasicUploadView(View):
def get(self, request):
files_list = Multi_File.objects.all()
#files_list = ['testing_123']
print ("files_list: {0}".format(files_list))
return render(self.request, 'myproject/multi_upload.html', {'filesList': files_list})
def post(self, request):
form = FileForm(self.request.POST, self.request.FILES)
if form.is_valid():
multiFile = form.save()
data = {'is_valid': True, 'name': multiFile.file.name, 'url': multiFile.file.url}
else:
data = {'is_valid': False}
return JsonResponse(data)
models.py
class Multi_File(models.Model):
title = models.CharField(max_length=255, blank=True)
file = models.FileField(upload_to='files/')
uploaded_at = models.DateTimeField(auto_now_add=True)
forms.py
class FileForm(forms.ModelForm):
class Meta:
model = Multi_File
fields = ('file', )
multi_upload.html
{% load static %}
{% block javascript %}
<script src="{% static 'myproject/js/jQuery-File-Upload-9.14.1/js/vendor/jquery.ui.widget.js' %}"></script>
<script src="{% static 'myproject/js/jQuery-File-Upload-9.14.1/js/jquery.iframe-transport.js' %}"></script>
<script src="{% static 'myproject/js/jQuery-File-Upload-9.14.1/js/jquery.fileupload.js' %}"></script>
<script src="{% static 'myproject/upload-files.js' %}"></script>
{% endblock %}
{# 1. BUTTON TO TRIGGER THE ACTION #}
<div class="col-md-4">
<form method="post" enctype="multipart/form-data">
{% csrf_token %}
<input type="file" name="myfile" multiple>
<button type="submit">Upload<span class="glyphicon glyphicon-cloud-upload"></span> </button>
</form>
</div>
{# 2. FILE INPUT TO BE USED BY THE PLUG-IN #}
<input id="fileupload" type="file" name="myfile" multiple
style="display: none;"
data-url="{% url 'myproject:multi_import' %}"
data-form-data='{"csrfmiddlewaretoken": "{{ csrf_token }}"}'>
{# 3. TABLE TO DISPLAY THE UPLOADED PHOTOS #}
<table id="gallery" class="table table-bordered">
<thead>
<tr>
<th>Uploaded Files:</th>
</tr>
</thead>
<tbody>
{% for aFile in filesList %}
<tr>
<td><a href="{{ aFile.file.url }}">{{ aFile.file.name }}</a></td>
</tr>
{% endfor %}
</tbody>
</table>
upload_files.js
$(function () {
/* 1. OPEN THE FILE EXPLORER WINDOW */
$(".js-upload-files").click(function () {
$("#fileupload").click();
});
/* 2. INITIALIZE THE FILE UPLOAD COMPONENT */
$("#fileupload").fileupload({
dataType: 'json',
done: function (e, data) { /* 3. PROCESS THE RESPONSE FROM THE SERVER */
if (data.result.is_valid) {
$("#gallery tbody").prepend(
"<tr><td><a href='" + data.result.url + "'>" + data.result.name + "</a></td></tr>"
)
}
}
});
});
到目前为止的问题: 1.单击按钮时,上传不起作用。随即出现该框,我可以选择许多文件并“上传”到页面,即说已选择2个文件。但是然后单击“上传”会出现错误:
{"is_valid": false}
这来自视图(mulit_uploade.py
),但是我有点困惑为什么
我想使用也用于单一上传功能的base.html
。因此,当我将{% extends "myproject/base.html" %}
添加到multi_upload.html
时,出现了一个新问题,当我仅使用单一上传功能时并没有出现:
未找到与“ myproject_about”相反的内容。 “ myproject_about”不是有效的视图函数或模式名称:
了解更多信息»
/ myproject / import /
中的NoReverseMatch未找到与“ myproject_about”相反的内容。 “ myproject_about”不是有效的视图函数或模式名称
答案 0 :(得分:0)
首先,您需要一个表单集(https://docs.djangoproject.com/en/2.1/topics/forms/formsets/),以便能够一次上传多个文件。因此代码大致如下:
{% for form in formset %}
<input type="file" name="{{form.name}}" id="{{form.id_for_label}}" />
{{form.file.errors}}
{% endfor %}
现在,每个文件将具有一些唯一的ID,如使用formset时所看到的。 要填充表中的数据,您需要侦听文件更改事件并更改表。
<td data-name="fileUniqueId1"></td>
<td data-name="fileUniqueId2"></td>
<td data-name="fileUniqueId3"></td>
$("form input[type='file']").change(function(e){
var fileId = e.target.id;
$("table td[data-name='"+ fileId +"']").text(e.target.files[0].name);
});