在django模板中显示外键值

Question

我已经查看了类似的问题,无法找到合适的解决方案,或者我错过了什么？我有两个模型(SafetyCourse和SafetyCourseTaken)我有一个外键关系,从"安全课程"到安全课程,如下所示:

models.py

class SafetyCourse(models.Model):
    user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
    name = models.CharField(max_length=128, unique=True)

    def __str__(self):
        return self.name


class SafetyCoursesTaken(models.Model):
    user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
    profile = models.ForeignKey(EmployeeProfile, on_delete=models.CASCADE)
    course = models.ForeignKey(SafetyCourse, on_delete=models.CASCADE, related_name='course_name')
    conducted_date = models.DateTimeField(null=True, blank=True)
    expiration_date = models.DateTimeField(null=True, blank=True)

    class Meta:
        verbose_name_plural = 'Safety Courses Taken'

views.py

class ManageSafetyCourseTakenView(LoginRequiredMixin, generic.ListView):
    login_url = reverse_lazy('users:login')
    model = SafetyCoursesTaken
    template_name = 'ppm/courses-taken.html'
    paginate_by = 10

    # override get_queryset to only show training related to employee profile
    def get_queryset(self):
        pk = self.kwargs['pk']
        return SafetyCoursesTaken.objects.filter(profile_id=pk)

当然,taken.html(模板)

{% for course_taken in object_list %}
    <tr>
        <td>{{ course_taken.course_id}}</td>
    </tr>
{% endfor %}

我尝试过类似问题的一些解决方案,但无法找到正确的问题.我试过了:course_taken.course_name_set.select_related,course_taken.course_name_set和其他几个.我想要做的只是显示课程的名称而不是课程ID.我究竟做错了什么？

Answer 1

查看您的架构,我认为它应该在模板中:

{% for course_taken in object_list %}
    <tr>
        <td>{{ course_taken.course.name }}</td>
    </tr>
{% endfor %}