old_contents: from django.contrib import admin
  
  from us_ignite.apps.models import (Application, ApplicationURL,
                                     ApplicationImage, Domain, Feature)
  
  
  class ApplicationURLInline(admin.TabularInline):
      model = ApplicationURL
  
  
  class ApplicationImageInline(admin.TabularInline):
      model = ApplicationImage
  
  
  class ApplicationAdmin(admin.ModelAdmin):
      list_display = ('name', 'slug', 'stage', 'status')
      search_fields = ['name', 'slug', 'short_description', 'description']
      list_filter = ['stage', 'status', 'created']
      date_hierarchy = 'created'
      inlines = [ApplicationURLInline, ApplicationImageInline]
  
  
  class DomainAdmin(admin.ModelAdmin):
      list_display = ('name', 'slug')
  
  
  class FeatureAdmin(admin. ModelAdmin):
      list_display = ('name', 'slug')
  
  admin.site.register(Application, ApplicationAdmin)
  admin.site.register(Domain, DomainAdmin)
  admin.site.register(Feature, FeatureAdmin)
  
new_contents: from django.contrib import admin
  
  from us_ignite.apps.models import (Application, ApplicationURL,
                                     ApplicationImage, Domain, Feature,
                                     Page, PageApplication)
  
  
  class ApplicationURLInline(admin.TabularInline):
      model = ApplicationURL
  
  
  class ApplicationImageInline(admin.TabularInline):
      model = ApplicationImage
  
  
  class ApplicationAdmin(admin.ModelAdmin):
      list_display = ('name', 'slug', 'stage', 'status')
      search_fields = ['name', 'slug', 'short_description', 'description']
      list_filter = ['stage', 'status', 'created']
      date_hierarchy = 'created'
      inlines = [ApplicationURLInline, ApplicationImageInline]
  
  
  class DomainAdmin(admin.ModelAdmin):
      list_display = ('name', 'slug')
  
  
  class FeatureAdmin(admin.ModelAdmin):
      list_display = ('name', 'slug')
  
  
  class PageApplicationInline(admin.TabularInline):
      raw_id_fields = ('application', )
      model = PageApplication
  
  
  class PageAdmin(admin.ModelAdmin):
      list_display = ('name', 'slug', 'status', 'created', )
      list_filter = ('status', 'created', )
      date_hierarchy = 'created'
      inlines = [PageApplicationInline]
  
  admin.site.register(Application, ApplicationAdmin)
  admin.site.register(Domain, DomainAdmin)
  admin.site.register(Feature, FeatureAdmin)
  admin.site.register(Page, PageAdmin)
  
subject: Add admi to add Applications to the Pages.