Question

我有两个型号。广告系列和展示位置。每个展示位置对象仅与一个广告系列对象相关。我想列出所有与所有展示位置相关的广告系列对象。

活动＃1
- 位置＃1
- 放置＃2
活动＃2
- 放置＃3
- 放置＃4
...

如何使用一个视图和一个模板进行操作？

广告系列模式：

class Campaign(models.Model):
ACTIVE = 1
INACTIVE = 0
STATUS_CHOICES = (
    (ACTIVE, 'Active'),
    (INACTIVE, 'Inactive'),
)
CPC = 'cpc'
CPM = 'cpm'
CPV = 'cpv'
status = models.IntegerField(default=1, choices=STATUS_CHOICES)
client_name = models.ForeignKey(Client, on_delete=models.CASCADE)
campaign_name = models.CharField(max_length=100)
start_date = models.DateField(default=datetime.date.today)
end_date = models.DateField(default=datetime.date.today)

def __str__(self):
    name = str(self.client_name) + " - " + self.campaign_name
    return name

展示位置模式：

class Placement(models.Model):
ACTIVE = 1
INACTIVE = 0
STATUS_CHOICES = (
    (ACTIVE, 'Active'),
    (INACTIVE, 'Inactive'),
)
CPC = 'cpc'
CPM = 'cpm'
CPV = 'cpv'
UNIT_CHOICES = (
    (CPC, 'CPC'),
    (CPM, 'CPM'),
    (CPV, 'CPV'),
)
status = models.IntegerField(default=1, choices=STATUS_CHOICES)
campaign_name = models.ForeignKey(Campaign, on_delete=models.CASCADE)
publisher_name = models.ForeignKey(Publisher, on_delete=models.CASCADE)
start_date = models.DateField(default=datetime.date.today)
end_date = models.DateField(default=datetime.date.today)
unit_type = models.CharField(default='cpc', choices=UNIT_CHOICES, max_length=3)
units = models.IntegerField(default=0)
budget = models.IntegerField(default=0)
budget_spent = models.IntegerField(default=0)
units_delivered = models.IntegerField(default=0)

def __str__(self):
    return str(self.publisher_name)

Answer 1

{% for campaign in campaigns %}
  {{ campaign.campaign_name }}
  {% for placement in campaign.placement_set.all %}
    {{ placement.status }}
  {% endfor %}
{% endfor %}

注意，你真的不应该调用你的外键＆＃34; foo_name＆＃34 ;;它们指向实际对象，而不是名称字段，因此应将它们称为campaign，client和publisher。

在一个视图中列出两个模型中的所有对象

1 个答案: