old_contents: ﻿from django.contrib import admin
  from sorl.thumbnail.admin import AdminImageMixin
  
  from .models import Section, Group, Item, Image, Area, Profile
  
  
  class ImageInline(AdminImageMixin, admin.StackedInline):
      model = Image
      extra = 5
  
  
  class ItemAdmin(admin.ModelAdmin):
      prepopulated_fields = {'slug': ('title',), }
      list_display = ('title', 'group', 'area', 'user', 'is_active', 'posted', 'updated')
      list_filter = ('area', 'group', 'is_active', 'posted',)
      search_fields = ('title', 'description', 'user__email')
      inlines = [ImageInline]
  
  
  class GroupAdmin(admin.ModelAdmin):
      prepopulated_fields = {'slug': ('title',), }
      list_display = ('title', 'slug', 'section', 'count')
      list_filter = ('section',)
      search_fields = ('title', 'section__title')
  
  
  class SectionAdmin(admin.ModelAdmin):
      list_display = ('title',)
  
  
  class AreaAdmin(admin.ModelAdmin):
      list_display = (
          'title',
      )
      prepopulated_fields = {'slug': ('title',)}
      
  class ProfileAdmin(admin.ModelAdmin):
      list_display = ('user', 'phone')
      search_fields = ('user__username', 'phone')
  
  
  
  admin.site.register(Area, AreaAdmin)
  admin.site.register(Section, SectionAdmin)
  admin.site.register(Group, GroupAdmin)
  admin.site.register(Item, ItemAdmin)
  admin.site.register(Profile, ProfileAdmin)
  
new_contents: ﻿from django.contrib import admin
  from sorl.thumbnail.admin import AdminImageMixin
  
  from .models import Section, Group, Item, Image, Area, Profile
  
  
  class ImageInline(AdminImageMixin, admin.StackedInline):
      model = Image
      extra = 5
  
  
  class ItemAdmin(admin.ModelAdmin):
      prepopulated_fields = {'slug': ('title',), }
      list_display = ('title', 'group', 'area', 'user', 'is_active', 'posted', 'updated')
      list_filter = ('area', 'group', 'is_active', 'posted',)
      search_fields = ('title', 'description', 'user__email')
      inlines = [ImageInline]
  
  
  class GroupAdmin(admin.ModelAdmin):
      prepopulated_fields = {'slug': ('title',), }
      list_display = ('title', 'slug', 'section', 'count')
      list_filter = ('section',)
      search_fields = ('title', 'section__title')
  
  
  class SectionAdmin(admin.ModelAdmin):
      list_display = ('title',)
  
  
  class AreaAdmin(admin.ModelAdmin):
      list_display = (
          'title',
      )
      prepopulated_fields = {'slug': ('title',)}
  
      
  class ProfileAdmin(admin.ModelAdmin):
      list_display = ('user', 'phone')
      search_fields = ('user__username', 'phone')
  
  
  admin.site.register(Area, AreaAdmin)
  admin.site.register(Section, SectionAdmin)
  admin.site.register(Group, GroupAdmin)
  admin.site.register(Item, ItemAdmin)
  admin.site.register(Profile, ProfileAdmin)
  
subject: Build eror complaining of blank lines?