在 Django 中使用 CreateVeiw 设置一些字段自动填写

Question

我正在使用 Django 的 CreateView 来填写表格，并且我希望自动填写一些字段，并寻找我如何做到这一点的想法。我想自动填写的字段是公司、招聘人员和日期

这就是视图文件的样子：

class CreateNewJobForm(CreateView):
    model = Job
    fields = (
        'title', 'company', 'recruiter', 'job_type', 'work_from', 'description', 'city', 'address', 'title_keywords',
        'date_created')
    template_name = 'create_new_job_form.html'
    success_url = '/job_created_successfully'

    def form_valid(self, form):
        form.instance.recruiter = self.get_name()
        return super(CreateNewJobForm, self).form_valid(form)

这就是模型文件的样子：

class Recruiter(models.Model):
    user = models.OneToOneField(settings.AUTH_USER_MODEL, on_delete=models.CASCADE, primary_key=True)
    name = models.CharField(max_length=255)
    company = models.ForeignKey(Company, on_delete=models.RESTRICT, related_name='recruiters')
    email = models.EmailField(max_length=255)
    phone_number = models.CharField(max_length=15, blank=True)

Answer 1

类似的东西应该可以正常工作：

 def form_valid(self, form):
    form.instance.user = self.request.user # assuming you want the current login user to be set to the user
    return super(CreateNewJobForm, self).form_valid(form)

这只是一个示例，但简而言之，您可以通过访问表单实例来访问模型的属性，例如 form.instance.yourfield

Answer 2

自动赋值

我们可以分配一个值而不在表单中显示它。在这种情况下，您从fields 中删除company、recruiter 和date_created 字段，并在form_valid 方法中填写这些字段：

from django.contrib.auth.mixins import LoginRequiredMixin

class CreateNewJobForm(LoginRequiredMixin, CreateView):
    model = Job
    fields = ('title', 'job_type', 'work_from', 'description', 'city', 'address', 'title_keywords')
    template_name = 'create_new_job_form.html'
    success_url = '/job_created_successfully'

    def form_valid(self, form):
        recruiter = form.instance.recruiter = self.request.user.recruiter
        form.instance.company_id = recruiter.company_id
        return super().form_valid(form)

对于date_created，您可以使用DateTimeField 的auto_now_add=True parameter [Django-doc]：

class Job(models.Model):
    # …
    date_created = models.DateTimeField(auto_now_add=True)

提供一个初始值

我们还可以通过覆盖.get_initial() method [Django-doc] 来为表单提供初始值：

from django.contrib.auth.mixins import LoginRequiredMixin
from django.utils.timezone import now

class CreateNewJobForm(LoginRequiredMixin, CreateView):
    model = Job
    fields = ('title', 'job_type', 'work_from', 'description', 'city', 'address', 'title_keywords', 'company', 'recruiter', 'date_created')
    template_name = 'create_new_job_form.html'
    success_url = '/job_created_successfully'

    def get_initial(self):
        recruiter = self.request.user.recruiter
        return {
            'recruiter': recruiter,
            'company': recruiter.company,
            'date_created': now()
        }