使用主键的Django createview [英] Django createview using primary key

问题描述

我有这样的模型：

  class Appointment（models.Model）：
 user = models。 ForeignKey（用户）
 engineer = models.ForeignKey（工程师）
 first_name = models.CharField（max_length = 100）
 middle_name = models.CharField（max_length = 100，blank = True）
 last_name = models.CharField（max_length = 100）
 age = models.IntegerField（）
 def __unicode __（self）：
返回self.first_name 
  

我使用这个模型创建了一个表单，我想保存它。在这里，我希望'工程师'字段作为主键在URL中传递..就像

  engineer = Engineer .objects.get（pk = pk）
  

我该怎么做。或者我应该创建一个正常的形式，并通过get方法获得它的值，并分配给字段??

CreateView，你应该建立在示例在文档中并将其添加到 form_valid ：

  def form_valid（self，form）：
 form.instance.engineer = Engineer.objects.get（self.kwargs ['pk']）
 return super（AppointmentCreate，self）.form_valid （表格）
  

I have a model like this:

class Appointment(models.Model):
    user = models.ForeignKey(User)
    engineer = models.ForeignKey(Engineer)
    first_name = models.CharField(max_length=100)
    middle_name = models.CharField(max_length=100, blank=True)
    last_name = models.CharField(max_length=100)
    age = models.IntegerField()
def __unicode__(self):
    return self.first_name

I have created a form using this model and I want to save it. Here I want the 'engineer' field to to be as the primary key is passed in the url.. like

engineer = Engineer.objects.get(pk=pk) 

How can I do this. Or I should create a normal form and get its value via get method and assign to the field??

解决方案

Since this is a CreateView, you should build on the example in the documentation and add it in form_valid:

def form_valid(self, form):
    form.instance.engineer = Engineer.objects.get(self.kwargs['pk'])
    return super(AppointmentCreate, self).form_valid(form)

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