如何在 Django 管理页面(在 formfield_for_foreignkey 内)中获取实际的对象 ID? [英] How do I get the actual object id in a Django admin page (inside formfield_for_foreignkey)?

问题描述

我已经解决了使用此代码编辑对象 id 的问题:

I 've already solved the problem of getting the object id being edited using this code:

class CompanyUserInline(admin.StackedInline):
    """
    Defines tabular rules for editing company users direct in company admin
    """
    model = CompanyUser

    def formfield_for_foreignkey(self, db_field, request, **kwargs):

        if db_field.name == "user":
            users = User.objects.filter( Q(is_superuser=False) )
            query = Q()
            for u in users:
                aux = CompanyUser.objects.filter(user=u)
                if aux.count() == 0:
                    query |= Q(pk=u.id)

            try:
                cpu = CompanyUser.objects.filter(company__id=int(request.path.split('/')[4]))
                for p in cpu:
                    query |= Q(pk=p.user.id)
            except:
                pass

            kwargs["queryset"] = User.objects.filter(query).order_by('username')

        return super(CompanyUserInline, self).formfield_for_foreignkey(db_field, request, **kwargs)

但是，int(request.path.split('/')[4]) 真的很丑.我想知道如何从 Django AdminModel 获取 id.我确定它在里面的某个地方，有人知道吗?

But, the int(request.path.split('/')[4]) is really ugly. I want to know how I get the id from the Django AdminModel. I'm sure it's somewhere inside it, anyone knows?

先谢谢你！;D

推荐答案

据我所知，通过 formfield_for_... 方法访问当前实例是不可能的，因为它们会只为单个字段实例调用！

As far as i know it is not possible to access the current instance through the formfield_for_...-methods, because they will only be called for a single field instance!

在这个逻辑中你可以访问整个实例/表单的一个更好的点是 get_form.您还可以在那里覆盖表单字段的查询集！

A better point to hook into this logic where you can access the whole instance/form would be get_form. You can also overwrite a form field's queryset there!

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