django url issue using mutiple regular expressions - django

Question

I am having an issue with an url and regular expression I get the error
AttributeError: Generic detail view EmployeeDetailView must be called with either an object pk or a slug.
What I am to achieve is to get to a user detail page coming from a specific project
url(r'^project/(?P<pk>[0-9]+)/$',views.ProjectDetailView.as_view(), name='ProjectDetails'),
url(r'^project/(?P<pk1>[0-9]+)/(?P<pk2>[0-9]+)/$',views.EmployeeDetailView.as_view(), name='EmployeDetails'),
my view is :
Project detail :
class ProjectDetailView(generic.DetailView, LoginRequiredMixin):
#import pdb; pdb.set_trace()
model = Project
template_name = 'project_details.html'
def get_context_data(self, **kwargs):
context = super(ProjectDetailView, self).get_context_data(**kwargs)
try:
team_name = Project.objects.get(id=self.kwargs['pk']).team_id.members.all()
context['team_name'] = team_name
except AttributeError:
pass
return context
class EmployeeDetailView(generic.DetailView, LoginRequiredMixin):
#import pdb; pdb.set_trace()
model = MyUser
template_name = 'Employee_Details.html'
def get_context_data(self, **kwargs):
context = super(EmployeeDetailView, self).get_context_data(**kwargs)
employee_name = MyUser.objects.get(id=self.kwargs['pk'])
context['employee_name'] = employee_name
return context
HTML link :
<span class="fa fa-id-card-o" aria-hidden="true"> Show Results
models:
MyUser models:
class MyUser(AbstractBaseUser):
email = models.EmailField(
verbose_name='email address',
max_length=255,
unique=True,
)
first_name = models.CharField(max_length=150, blank=True, null=True)
last_name = models.CharField(max_length=150, blank=True, null=True)
is_active = models.BooleanField(default=True)
is_admin = models.BooleanField(default=False)
is_hr = models.BooleanField(default=False)
is_candidate = models.BooleanField(default=False)
is_employee = models.BooleanField(default=False)
company = models.CharField(max_length=100, blank=True, null=True)
Project model:
class Project(models.Model):
name = models.CharField(max_length=250)
team_id = models.ForeignKey(Team, blank=True, null=True)
project_hr_admin = models.ForeignKey('registration.MyUser', blank=True, null=True)
candidat_answers = models.ManyToManyField('survey.response')
Team models:
class Team(models.Model):
team_name = models.CharField(max_length=100, default = '')
team_hr_admin = models.ForeignKey(MyUser, blank=True, null=True)
members = models.ManyToManyField(MyUser, related_name="members")
could you please help me to figure it ? thx you ;)

Answer 1

Django doesn't know how to use pk1 and pk2 to fetch the object for the view. I would override the get_object method and fetch the object there.
from django.shortcuts import get_object_or_404
# Note mixin should come first
class EmployeeDetailView(LoginRequiredMixin, generic.DetailView):
model = MyUser
template_name = 'Employee_Details.html'
def get_object(self, queryset=None):
return get_object_or_404(MyUser, pk=self.kwargs['pk2'], project=self.kwargs['pk1'])
...
Another option is to set pk_url_kwarg = 'pk2'. This tells Django that pk2 is the primary key of the MyUser object, so there is no need to override get_object. However if you do this, then Django will ignore the pk1 from the URL.
class EmployeeDetailView(generic.DetailView, LoginRequiredMixin):
#import pdb; pdb.set_trace()
model = MyUser
pk_url_kwarg = 'pk2'
template_name = 'Employee_Details.html'