Ajax：将整数数组发布到 Django

发布于 2024-12-11 17:01:18 字数 945 浏览 0 评论 0原文

我正在使用DataTables。我想让用户选择多行并删除它们。到目前为止，我已经让它工作了，所以它使用下面的代码删除了选择中的第一行。

Ajax 代码：

    /* Add a click handler for the delete row */
    $('#delete').click( function() {
        /* fnGetSelected returns an array of integers - each int is a db unique id */
        var anSelected = fnGetSelected( oTable );
        delete_url = '/delete/' + anSelected[0];               
        $.ajax({                  
              url: delete_url,
              type: 'GET',
          });
        oTable.fnDeleteRow( anSelected[0] ); 
        fnReloadAjax();
    } );

Django 代码：

@login_required
def delete(request, row_id):                          
     item = get_object_or_404(Items, pk=row_id, user=request.user)
     item.delete()

如何更新它以将所有行 id 传递到 Django 后端？我想我需要发布 anSelected 数组，但我不确定如何执行此操作。我需要什么 Django 代码来处理这个整数数组？

原文

I'm using DataTables. I want to let the user select multiple rows and delete them. So far I have it working so it deletes the first row in the selection using the code below.

Ajax Code:

    /* Add a click handler for the delete row */
    $('#delete').click( function() {
        /* fnGetSelected returns an array of integers - each int is a db unique id */
        var anSelected = fnGetSelected( oTable );
        delete_url = '/delete/' + anSelected[0];               
        $.ajax({                  
              url: delete_url,
              type: 'GET',
          });
        oTable.fnDeleteRow( anSelected[0] ); 
        fnReloadAjax();
    } );

Django Code:

@login_required
def delete(request, row_id):                          
     item = get_object_or_404(Items, pk=row_id, user=request.user)
     item.delete()

How could I update this to pass all the row ids to the Django back end? I guess I need to POST the anSelected array, but am not sure how to do this. What Django code would I need to process this integer array?

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夜还是长夜 2024-12-18 17:01:18

您可以尝试这样的操作：

$(function(){
    $.post("{% url delete %}", {"ids[]": anSelected}, function(res){
    if(res.ok){
        // remove rows from your table, maybe :)
        // oTable.fnDeleteRow(anSelected);
      }else{
        alert(res.errors); 
      } 
    });
})

在服务器上：

@ajax_request
def test(request):
    ids = request.POST.getlist("ids[]")
    try:
        Items.objects.filter(id__in=ids).delete()
    except:
        return {"ok": False, "errors": "your error"}
    return {"ok": True}

@ajax_request装饰器来自 https:// bitbucket.org/offline/django-annoying/wiki/Home 并让您返回 json 响应。

You could try sometings like this:

$(function(){
    $.post("{% url delete %}", {"ids[]": anSelected}, function(res){
    if(res.ok){
        // remove rows from your table, maybe :)
        // oTable.fnDeleteRow(anSelected);
      }else{
        alert(res.errors); 
      } 
    });
})

On the server:

@ajax_request
def test(request):
    ids = request.POST.getlist("ids[]")
    try:
        Items.objects.filter(id__in=ids).delete()
    except:
        return {"ok": False, "errors": "your error"}
    return {"ok": True}

the @ajax_request decorators is from https://bitbucket.org/offline/django-annoying/wiki/Home and let you return json response.

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我乃一代侩神 2024-12-18 17:01:18

您需要使用 simplejson.loads，例如，如果您将 anSelected 数组作为 arr 传递，您将使用类似这样的内容

from django.utils import simplejson

array = simplejson.loads(request.POST['arr'])
try:
    ModelName.objects.filter(pk__in=array).delete()
except:
    return HttpResponse(simplejson.dumps({'ok': False}))
return HttpResponse(simplejson.dumps({'ok': True}))

，并在您的 javascript 中使用这样的内容这些行：

$.post(
    '/delete/',
    {arr: anSelected},
    function(data){
        if(data.ok){
            //Everything went smoothly
        }else{
            //Something failed, you can send extra info from django like the name of the exception thrown if you'd want and display it
        }
    }
);

You'd need to use simplejson.loads, for example if you'd pass the anSelected array as arr you'd use something like this

from django.utils import simplejson

array = simplejson.loads(request.POST['arr'])
try:
    ModelName.objects.filter(pk__in=array).delete()
except:
    return HttpResponse(simplejson.dumps({'ok': False}))
return HttpResponse(simplejson.dumps({'ok': True}))

and in your javascript this something along these lines:

$.post(
    '/delete/',
    {arr: anSelected},
    function(data){
        if(data.ok){
            //Everything went smoothly
        }else{
            //Something failed, you can send extra info from django like the name of the exception thrown if you'd want and display it
        }
    }
);

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