Django -自定义admin页面的add视图

Question

假设我有一个Pen的数据模型。钢笔可以是金属的，也可以是木头的。金属笔可以是银色或白色的木制钢笔可以是蓝色的或绿色的。所以不能有蓝色的金属笔

是否有办法取代添加按钮中的材料选择，以显示材料名称/颜色的组合?我认为字段集一定有问题。

# model.py
from django.db import models
class Color(models.Model):
    color = models.CharField(max_length=20, primary_key=True)
    def __unicode__(self):
        return self.color
class Material(models.Model):
    type = models.CharField(max_length=20)
    color = models.OneToOneField(Color)
    def __unicode__(self):
        return "%s_%s" % (str(self.color), self.type)
class Pen(models.Model):
    id = models.AutoField(primary_key=True)
    label = models.CharField(max_length=20)
    material = models.ForeignKey(Material)
    def __unicode__(self):
        return "%s_%s" % (str(self.material), self.label)
# admin.py
from django.contrib import admin
from .models import Material, Color, Pen
class PenAdmin(admin.ModelAdmin):
    list_display = ('label', 'material', 'get_color',)
    fieldsets = (
        (None, {
            'fields': ('label', 'material')
        }),
    )
    def get_color(self, obj):
        return obj.material.color
    get_color.short_description = 'Color'
admin.site.register(Pen, PenAdmin)
admin.site.register(Material)
admin.site.register(Color)

Answer 1

我最终没有使用字段集。我想这是用来做简单改动的。以下是完成它的步骤:

1. 重写add的url:

   url(r'^admin/penshop/pen/add/$', 'penshop.views.add_pen'),
   url(r'^admin/save_pen/$', 'penshop.views.save_pen'),
   url(r'^admin/', include(admin.site.urls)),
   

2. 创建一个add_pen.html模板，其中包含您的自定义页面。确保表单包含{% csrf_token %}

3. 在views.py中添加一个入口点来处理表单请求:

   @staff_member_required
   def save_pen(request):
       if request.method == 'POST':
           values = request.META.items()
           label = request.POST.get("label", "")
           color = request.POST.get("color", "")
           material = request.POST.get("material", "")
           if len(label) > 0 and len(color) > 0 and len(material) > 0 and
               not color.startswith('-') and not material.startswith('-'):
               import pdb;pdb.set_trace
               col_obj = Color.objects.filter(color=color)[0]
               mat_obj = Material.objects.filter(type=material, color=col_obj)[0]
               pen_obj = Pen(label=label, material=mat_obj)
               pen_obj.save()
               return HttpResponseRedirect('/admin/penshop/pen/')
           else:
               raise Exception('Bad data. It is not going to be saved!')
       else:
           return HttpResponseRedirect('/admin/')
       return render(request, 'index.html', {'form': form})