变量“名称”以 django 模板形式

发布于 2024-11-09 15:06:47 字数 1192 浏览 0 评论 0原文

我有以下模板，其中同时具有“添加”和“删除”按钮：

<tr>
    <td>Position</td>
    <td>{{ form.position }}<input type="submit" value="add" , name='add'/></td>
</tr>
<tr>
    <td> </td>
    <td>
        {% for position in positions %}
        {{ position}}<input type="submit" value="Delete", name="delete-position.{{ position }}"/> 
        {% endfor %}
    </td>
</tr>

如何构造views.py 函数来查找删除提交按钮的name 值？我目前有：

    try:
        request.POST['add']
        positions.append(request.POST['position'])          
        return render_to_response('registration/getting_started_info1.html', {'form': form, 'positions': positions}, context_instance = RequestContext(request))
    except: 
        if 'delete-position' in request.POST:
            positions.remove(### how to get name of Delete submit? ###)
            return render_to_response('registration/getting_started_info1.html', {'form': form, 'positions': positions}, context_instance = RequestContext(request))

另外，是否有更好的方法来构造视图/模板，以便我可以使用 if...else 而不是 try... except ？

原文

I have the following template, which has both an "add" and "delete" button:

<tr>
    <td>Position</td>
    <td>{{ form.position }}<input type="submit" value="add" , name='add'/></td>
</tr>
<tr>
    <td> </td>
    <td>
        {% for position in positions %}
        {{ position}}<input type="submit" value="Delete", name="delete-position.{{ position }}"/> 
        {% endfor %}
    </td>
</tr>

How would I construct the views.py function to find the name value of the Delete submit button? I currently have:

    try:
        request.POST['add']
        positions.append(request.POST['position'])          
        return render_to_response('registration/getting_started_info1.html', {'form': form, 'positions': positions}, context_instance = RequestContext(request))
    except: 
        if 'delete-position' in request.POST:
            positions.remove(### how to get name of Delete submit? ###)
            return render_to_response('registration/getting_started_info1.html', {'form': form, 'positions': positions}, context_instance = RequestContext(request))

Also, is there a better way to construct the view/template so I can use an if...else instead of a try...except ?

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腹黑女流氓 2024-11-16 15:06:47

首先，您可能应该这样做：

if request.method == "POST":
    if 'add' in request.POST.keys():
        positions.append(...)
        return render_to_response(...)
    else:
        for k, v in request.POST.items():
            if k.startswith('delete-position'):
                positions.remove(k)
                return render_to_response(...)

这应该对您的要求有所帮助...但是，我不确定这是否是完成您想要做的事情的最简单的方法。

First, you should probably do this:

if request.method == "POST":
    if 'add' in request.POST.keys():
        positions.append(...)
        return render_to_response(...)
    else:
        for k, v in request.POST.items():
            if k.startswith('delete-position'):
                positions.remove(k)
                return render_to_response(...)

That should help with what you're asking... however, I'm not sure if it's the easiest method to do what you're trying to do.

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葬﹪忆之殇 2024-11-16 15:06:47

保存会话中的位置。

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白衬杉格子梦 2024-11-16 15:06:47

你的 try-catch 有点奇怪。您可能应该向不同的视图提交删除请求。

但至于如何获取 delete-position 变量，很简单：

def delete(request):
    if request.method == "POST":
        for key in request.POST.keys():
            if key.startswith('delete-position'):
                positions.remove(request.POST[key])

Your try-catch is kind of weird. You should probably be submitting delete requests to a different view.

But as to how you can get the delete-position vars, it's easy:

def delete(request):
    if request.method == "POST":
        for key in request.POST.keys():
            if key.startswith('delete-position'):
                positions.remove(request.POST[key])

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