Question

I have 4 models in my project. Which are :

class Company(Group):

address_1 = models.CharField(max_length = 300, blank = True, null = True)
web_site = models.URLField(blank = True, null = True)
office_number = models.CharField(max_length = 20, blank = True, null = True)


class Person(models.Model):

user = models.ForeignKey(User)
company = models.ForeignKey(Company)


class Project(models.Model):

name = models.CharField(max_length = 100)
person = models.ManyToManyField(User, through = 'UserProject')


class UserProject(models.Model):

user = models.ForeignKey(User)
project = models.ForeignKey(Project)
is_owner = models.BooleanField(default = False)

In a view I would want to get

1. All the projects related to the request.user
2. The companies that are working on those projects
3. and the employees of those companies

I have tried writing some code but the queries are not precise. Help would be appreciated!

Answer 1

I have pondered and used some of the solutions enlisted above, but nothing was exact to what I was looking for. For me the following piece of code works well

            projects = Project.objects.filter(person = request.user)

            user_projects = UserProject.objects.filter(project__in = projects)

            for user_project in user_projects:
                person = user_project.user.get_profile()
                company.append(person.company)
                people.append(person)

            company = set(company)