从Django视图中的按钮获取click事件 [英] Get the click event from a button in a django view

问题描述

我认为标题很清楚。我想知道用户何时单击按钮以在我的views.py中的函数中运行一段代码。可以说我有这个html：

i think the title is pretty clear. I want to know when the user clicks the button to run a piece of code in a function in my views.py. lets say i have this html:

<div>
    <input type="button" name="_mail" value="Enviar Mail">  
</div>

如果用户单击它，我想运行此代码：

and i want to run this code if the user clicks on it:

send_templated_mail(template_name='receipt',
                    from_email='[e-mail]',
                    recipient_list=[request.user.email],
                    context=extra_context)

这就是我要做的。

编辑：这是我具有的视图：

EDIT: this is the view that i have:

def verFactura(request, id_factura):
    fact = Factura.objects.get(pk = id_factura)
    cliente = Cliente.objects.get(factura = fact)
    template = 'verfacturas.html'
    iva = fact.importe_sin_iva * 0.21
    total = fact.importe_sin_iva + iva

    extra_context = dict()
    extra_context['fact'] = fact
    extra_context['cliente'] = cliente
    extra_context['iva'] = iva
    extra_context['total'] = total


    if  (here i want to catch the click event):
        send_templated_mail(template_name='receipt',
                    from_email='[e-mail]',
                    recipient_list =['[e-mail]'],
                    context=extra_context)

        return HttpResponseRedirect('../facturas')



return render(request,template, extra_context)

推荐答案

您应在 views.py ，将其映射到您的 urls.py 中的url，然后使用JavaScript（纯JS或 jQuery 如下所示）：

You should create this function in your views.py, map it to the url in your urls.py and add event handler using JavaScript (pure JS or using jQuery as shown below):

JS（使用 jQuery ）：

$('#buttonId').click(function() {    
    $.ajax({
        url: your_url,
        method: 'POST', // or another (GET), whatever you need
        data: {
            name: value, // data you need to pass to your function
            click: true
        }
        success: function (data) {        
            // success callback
            // you can process data returned by function from views.py
        }
    });
});

HTML：

<div>
    <input type="button" id="buttonId" name="_mail" value="Enviar Mail">  
</div>

Python：

def verFactura(request, id_factura):

    ...    

    if request.POST.get('click', False): # check if called by click
        # send mail etc.        

    ...

请注意，如果要使用 POST 方法，则应注意 csrf （跨站点请求伪造）如这里

Note that if you're going to use POST method you should care about csrf (cross-site request forgery) protection as described HERE

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