Question

我有以下3种型号：

class Apartament(models.Model):
    Nume = models.CharField(max_length=200)
    Proprietar = models.ForeignKey(User, on_delete=models.CASCADE)
    Judet = models.CharField(max_length=200)
    Oras = models.CharField(max_length=200)
    Strada = models.CharField(max_length=200)
    pub_date = models.DateTimeField('Data inregistrare')

    def __str__(self):
        return self.Nume


class Provideri(models.Model):
    Nume = models.CharField(max_length=200)
    def __str__(self):
        return self.Nume

class Facturi(models.Model):
    Numar = models.CharField(max_length=200)
    Serie = models.CharField(max_length=200)
    Apartament = models.ForeignKey(Apartament, on_delete=models.CASCADE, default='0')
    Provider = models.ForeignKey(Provideri, on_delete=models.CASCADE, default='0')
    Suma = models.DecimalField('Suma de plata', max_digits=5, decimal_places=2)
    DataEmitere = models.DateField('Data emitere')
    DataScadenta = models.DateField('Data scadenta')
    DetaliiFactura = models.TextField('Detalii Factura', help_text="Ce reprezinta factura?")
    def __str__(self):
        return "{} - {} {}".format(self.Provider,self.Serie, self.Numar)

此视图：

class DetailView(LoginRequiredMixin, generic.DetailView):
    model = Apartament
    template_name = 'apartament/detail.html'

这个模板：

{% extends "base.html" %}
{% block content %}



{% if apartament.Proprietar == user %}
    <div class="card">
        {% if error_message %}<p><strong>{{ error_message }}</strong></p>{% endif %}

        <div class="card-header">
            {% block title %}{{ apartament.Nume }}{% endblock %}
        </div>
        <div class="card-body">
            <div class="row">
                <div class="col-lg-10">
                    {{facturi}}
                    {% for factura in facturi %}
                        aaaaaaaaaaa<br>
                    {% endfor %}

                </div>
                <div class="col-lg-2">
                    Judet: {{apartament.Judet}}<br>
                    Oras: {{apartament.Oras}}<br>
                    Strada: {{apartament.Strada}}<br>
                </div>
            </div>
        </div>
    </div>
{% else %}


<div class="alert alert-warning" role="alert">
    <h4 class="alert-heading">Apartamentul nu iti apartine</h4>
    <p>
        Cel putin in aplicatie :)
    </p>
</div>

{% endif %}



{% endblock %}

如何在模板上显示“ Facturi”列表以及请求的Apartament_id中的信息

我尝试使用上面的代码，但是当我在模板上添加{{facturi}}时，没有任何显示

return Facturi.objects.filter(Apartament_id=Apartament.id)
# also with
facturi = Facturi.objects.filter(Apartament_id=Apartament.id)

打印时，它会显示在我的控制台上，而不显示在模板上。

python manage.py runserver 0.0.0.0:8000
Watching for file changes with StatReloader
Performing system checks...

<QuerySet [<Facturi: ENGIE - 123 GAZ>, <Facturi: RDS - 123 RDS>]>
System check identified no issues (0 silenced).
May 27, 2019 - 19:04:10
Django version 2.2.1, using settings 'myHome.settings'
Starting development server at http://0.0.0.0:8000/
Quit the server with CONTROL-C.

我想在应用程序上显示包含以下内容的列表：

1. Facturi：ENGIE-123 GAZ

2. Facturi：RDS-123 RDS

来自：<QuerySet [<Facturi: ENGIE - 123 GAZ>, <Facturi: RDS - 123 RDS>]>已进入控制台

Answer 1

您需要将facturi添加到上下文中。将该方法添加到您的视图类：

def get_context_data(self, **kwargs):
    context = super().get_context_data(**kwargs)
    context['facturi'] = Facturi.objects.filter(Apartament=Apartament)
    return context

您需要在模板中添加要在迭代过程中显示的必填字段，例如Numar和Serie字段：

{% for factura in facturi %}
    {{ factura.Numar }}
    {{ factura.Serie }}
{% endfor %}

Answer 2

我认为您需要使用get_context_data将“ Facturi”添加到从视图传递到模板的上下文对象中： https://docs.djangoproject.com/en/2.2/ref/class-based-views/mixins-simple/

是这样的：


def get_context_data(self, **kwargs):
    context = super().get_context_data(**kwargs)
    context['Facturi'] = Facturi.objects.filter(Apartament_id=Apartament.id)
    return context

然后，您应该可以通过以下方式访问模板中的Facturi查询集：

{% for factura in Facturi %}

{% endfor %}

从视图中将对象不仅仅是模板

2 个答案: