如何在 Django 中执行查询两个多对多字段？

Question

#我是 python 网络框架 Django 的新手。 #models.py

class User(AbstractUser):
  is_employeer = models.BooleanField(default=False)
  is_jobseeker = models.BooleanField(default=False)
    



class allskill(models.Model):
    skills = models.CharField(max_length=200, blank=True, null=True)

    def __str__(self):
        return self.skills

    def get_absolute_url(self):
        return reverse('employee:post_job')



class jobseeker(models.Model):
    user = models.OneToOneField(User, on_delete = models.CASCADE, primary_key = True)
    phone_number = models.CharField(max_length=20)
    location = models.CharField(max_length=100)
    gender = models.CharField(max_length=20, choices=GENDER_CHOICE, default=GENDER_MALE)
    email = models.EmailField(default='ajay@gmail.com')
    jobseeker_skill = models.ManyToManyField(allskill)


    def __str__(self):
        return self.user.username



class Employeer(models.Model):
    user = models.OneToOneField(User, on_delete = models.CASCADE, primary_key = True)
    company_name = models.CharField(max_length=50, default='company name')
    company_tel = models.CharField(max_length=20, default='01-56559565')
    phone_number = models.CharField(max_length=20)
    location = models.CharField(max_length=100)
    company_website = models.URLField(default="company.com")
    company_email = models.EmailField(default='company@gmail.com')
    conpany_type = models.CharField(max_length=200, choices=COMPANY_TYPE, default=TE)


    def __str__(self):
        return self.user.username



class Job_Post(models.Model):
    job_title = models.CharField(max_length=200)
    job_descreption = models.TextField()
    user = models.ForeignKey(User, on_delete = models.CASCADE)
    job_post_date = models.DateField(default=timezone.now)
    required_skill = models.ManyToManyField(allskill)
    time = models.CharField(max_length=200, choices=time, default=FT)

    def __str__(self):
        return f"{self.user.username}'s {self.job_title}"

    def get_absolute_url(self):
        return reverse('employee:job_list', kwargs={'username':self.user})

#views.py

class joblist(ListView):
model = Job_Post
template_name = 'my_skill.html'
context_object_name = 'jobsforjobseekerskill'

def get_queryset(self):
    jobseeker = self.request.user.is_jobseeker
    jobseeker_skills = Job_Post.objects.filter(required_skill__pk__in = jobseeker.jobseeker_skill.values_list('pk', flat = True))
    print(jobseeker_skills)
    return jobseeker_skills

#得到这个错误 enter image description here

问题

写代码的方式好吗？

如何

以求职者身份登录后，求职者可以显示仅与其技能相关的职位。如何做到这一点？

写代码的正确方式是什么？

Answer 1

您可以这样修改代码：

def get_queryset(self):
    jobseeker = self.request.user.jobseeker  # as there is OneToOne relation between user and jobseeker
    # FYI please use PascalCase when defining name
    jobseeker_skills = Job_Post.objects.filter(required_skill__pk__in = jobseeker.jobseeker_skill.values_list('pk', flat = True))
    print(jobseeker_skills)
    return jobseeker_skills

您只需在代码中将 is_jobseeker 与 jobseeker 相关联即可。

一个更干净的解决方案可以是这样的：

def get_queryset(self):
    return Job_Post.objects.filter(required_skill__jobseeker__user=self.request.user)

我在 allpost 和 jobseeker 之间使用 reverse relation 以及 Job_Post 和 all_post 之间的关系来获取 Job_Post 查询集。

如何在 Django 中执行查询两个多对多字段？

How to execute query two many to many field in Django?

django

join

execute

manytomanyfield

问题

如何