在Django / Python

时间:2016-01-31 19:59:15

标签: python django django-forms django-views

我正在尝试创建一个应用程序,用户可以在其中管理" Lost property"项目。为此,我有一个显示所有项目的主页面,当项目返回给所有者时,我每行都有一个按钮。

该按钮正在提交一个表单,该表单应包含已单击元素的ID值,因此我尝试获取类似

的内容
<input id="id_id" name="id" type="hidden" value="{{lostitem.id}}">

但我不知道如何将这个价值传递给我的表格!这是我的模板:

{% for lostitem in lostitems %}
    <tr>
        <td>{{lostitem.id}}</td>
        <td>{{lostitem.description}}</td>
        <td>
            <form class="give-back-item-form" method="POST">
                {% csrf_token %}
                {{formGiveBackItem.as_p}}
                <button type="submit" class="button btn btn-xs btn-success buttonItems">
                    <span class="glyphicon glyphicon-share-alt" aria-hidden="true"></span>
                </button>
                <!-- TRYING TO ADD A HIDDEN INPUT WITH THE ID AS VALUE -->
            </form>
        </td>
    </tr>
{% endfor %}

这是来自forms.py

的表单
class GiveBackItemForm(forms.ModelForm):
    id = forms.CharField(widget=forms.HiddenInput())
    class Meta:
        model = ItemLost
        fields = ('id',)

以下是我试图获取$ _POST [&#39; id&#39;]并更新我的对象的地方(我无法测试此部分,因为我不是现在获取任何POST信息):

from .forms import GiveBackItemForm
"""Defining our views"""
def item_list(request):
    formGiveBackItem = GiveBackItemForm()
    """Ordering objects by date of creation"""
    lostitems =   ItemLost.objects.filter(added_date__lte=timezone.now()).order_by('added_date')
    if request.method == "POST":
        """Giving back an item"""
        itemToGive = ItemLost.objects.get(pk=request.POST.get('id'))
        itemToGive.giveBackItem
    """Returning our ordered objects to the view"""
    """Request = everything we receive from the user (in a form for example)"""
    return render(request, 'lostitem/item_list.html', {'lostitems': lostitems, 'formGiveBackItem' : formGiveBackItem})

感谢您对代码的任何帮助或评论!我刚刚开始,很难找到有关我的问题的任何帮助

编辑:我设法通过仍然使用Django ModelForm和视图来处理我的表单 以下是我的观点中的代码:

def item_list(request):
"""Ordering objects by date of creation"""
lostitems = ItemLost.objects.filter(added_date__lte=timezone.now()).order_by('added_date')
"""To get data from the form"""
give_back_item_form = GiveBackItemForm(request.POST or None)
# check if form is valid
if give_back_item_form.is_valid():
    itemToGive = ItemLost.objects.get(pk=give_back_item_form.cleaned_data['id'])
    itemToGive.returned_date=timezone.now()
    itemToGive.save()
# your rest of the code here
"""Returning our ordered objects to the view"""
"""Request = everything we receive from the user (in a form for example)"""
return render(request, 'lostitem/item_list.html', {'lostitems': lostitems, 'give_back_item_form' : give_back_item_form})

这是我模板的代码!

    <form class="give-back-item-form" method="POST">
        {% csrf_token %}
        <input type="hidden" name="id" value="{{ lostitem.id }}">
        <button type="submit" class="button btn btn-xs btn-success buttonItems">
            <span class="glyphicon glyphicon-share-alt" aria-hidden="true">    </span>
        </button>
    </form>

谢谢大家的回答,它引导我找到正确的解决方案!

1 个答案:

答案 0 :(得分:6)

如果您要做的只是回发关联的id对象的ItemLost,以便您可以在其上调用方法(例如giveBackItem()),那么&#39;根本不需要使用ModelForm。只需使用普通的HTML <form>,然后手动将隐藏字段放入其中:

<form class="give-back-item-form" method="POST">
    {% csrf_token %}
    <button type="submit" value="Give Back">                       
    <input type="hidden" name="id" value="{{lostitem.id}}">
</form>

因此,您的完整模板将成为:

{% for lostitem in lostitems %}
    <tr>
        <td>{{lostitem.id}}</td>
        <td>{{lostitem.description}}</td>
        <td>
            <form class="give-back-item-form" method="POST">
                {% csrf_token %}
                <button type="submit" class="button btn btn-xs btn-success buttonItems">
                    <span class="glyphicon glyphicon-share-alt" aria-hidden="true"></span>
                </button>
                <input type="hidden" name="id" value="{{lostitem.id}}">
            </form>
        </td>
    </tr>
{% endfor %}