[英]Sorting items by drag and drop in django
In my django project I show a list of books in template.在我的 Django 项目中,我在模板中显示了书籍列表。 Book model has position field which I use to sort books.书籍模型具有我用来对书籍进行排序的位置字段。
I'm trying to sort this list by drag and drop list items but my next code dont work well.我正在尝试通过拖放列表项对这个列表进行排序,但我的下一个代码不能正常工作。 I use JQuery UI .我使用JQuery UI 。 It works in frontend but dont change position field`s value when user drag and drop list item.它在前端工作,但在用户拖放列表项时不会更改位置字段的值。 Can someone help me to improve my js and view code.有人可以帮助我改进我的 js 并查看代码。 I am comfused.我很困惑。 I would be grateful for any help.我将不胜感激任何帮助。
models.py:模型.py:
class Book(models.Model):
title = models.CharField(max_length=200, help_text='Заголовок', blank=False)
position = models.IntegerField(help_text='Поле для сортировки', default=0, blank=True)
class Meta:
ordering = ['position', 'pk']
html: html:
<div id="books" class="list-group">
{% for book in books %}
<div class="panel panel-default list-group-item ui-state-default">
<div class="panel-body">{{ book.title }}</div>
</div>
{% endfor %}
</div>
urls.py:网址.py:
url(r'^book/(?P<pk>\d+)/sorting/$',
BookSortingView.as_view(),
name='book_sorting')
JS: JS:
$("#books").sortable({
update: function(event, ui) {
var information = $('#books').sortable('serialize');
$.ajax({
url: "???",
type: "post",
data: information
});
},
}).disableSelection();
views.py:视图.py:
class BookSortingView(View):
@method_decorator(csrf_exempt)
def dispatch(self, request, *args, **kwargs):
return super(BookSortingView, self).dispatch(request, *args, **kwargs)
def post(self, request, pk, *args, **kwargs):
for index, pk in enumerate(request.POST.getlist('book[]')):
book = get_object_or_404(Book, pk=pk)
book.position = index
book.save()
return HttpResponse()
This is working for me!!这对我有用!!
JS JS
<script type="text/javascript" charset="utf-8">
$(document).ready(function() {
$("tbody").sortable({
update: function(event, ui) {
sort =[];
window.CSRF_TOKEN = "{{ csrf_token }}";
$("tbody").children().each(function(){
sort.push({'pk':$(this).data('pk'),'order':$(this).index()})
});
$.ajax({
url: "{% url "book-sort" %}
",
type: "post",
datatype:'json',
data:{'sort':JSON.stringify(sort),
'csrfmiddlewaretoken': window.CSRF_TOKEN
},
});
console.log(sort)
},
}).disableSelection();
});
HTML HTML
<table class="table table-hover" id="sortable" style="">
<thead>
<tr>
<th></th>
<th>Name</th>
</thead>
<tbody id="#Table">
{% for book in books %}
<tr data-pk="{{ book.id }}" class="ui-state-default" style="cursor: move;" data-placement="left" title="Customize the order by drag and drop">
<td> <a>{{ book.name }}</a> </td>
{% endfor %}
</tbody>
</table>
view查看
@csrf_exempt
def sort(self):
books = json.loads(self.request.POST.get('sort'))
for b in books:
book = get_object_or_404(Book, pk=int(b['pk']))
book.position = b['order']
book.save()
return HttpResponse('saved')
and also change the query_set in your listview to get the books in that order并更改列表视图中的 query_set 以按该顺序获取书籍
books = Book.objects.all().order_by('position')
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