board/main/admin.py

from django.contrib import admin
import datetime

from .utilities import send_activation_notification
from .models import AdvUser, SuperRubric, SubRubric, Ad, AdditionalImage, Comment
from .forms import SubRubricForm

def send_activation_notifications(modeladmin, request, queryset):
    for rec in queryset:
        if not rec.is_activated:
            send_activation_notification(rec)
    modeladmin.message_user(request, 'Письма с требованиями отправлены')
send_activation_notifications.short_description = 'Отправка писем с требованиями активации'

class NonactivatedFilter(admin.SimpleListFilter):
    title = 'Прошли активацию?'
    parameter_name = 'actstate'

    def lookups (self, request, model_admin):
        return(('activated', 'Прошли'),
               ('threedays', 'Не прошли более 3 дней'),
               ('week', 'Не прошли более недели'),
               )

    def queryset (self, request, queryset):
        val = self.value()
        if val == 'activated':
            return queryset.filter(is_active=True, is_activated=True)
        elif val == 'threedays':
            d = datetime.date.today() - datetime.timedelta(days=3)
            return queryset.filter(is_active=False, is_activated=False, date_joined__date__lt=d)
        elif val == 'week':
            d = datetime.date.today() - datetime.timedelta(weeks=1)
            return queryset.filter(is_active=False, is_activated=False, date_joined__date__lt=d)

class AdvUserAdmin(admin.ModelAdmin):
    list_display = ('__str__', 'is_activated', 'date_joined')
    search_fields = ('username', 'email', 'first_name', 'last_name')
    list_filter = (NonactivatedFilter, )
    fields = (('username', 'email'), 
              ('first_name', 'last_name'),
              ('send_messages', 'is_active', 'is_activated'),
              ('is_staff', 'is_superuser'),
              'groups',
              'user_permissions',
              ('last_login', 'date_joined'))
    readonly_fields = ('last_login', 'date_joined')
    actions = (send_activation_notifications, )

admin.site.register(AdvUser, AdvUserAdmin)

class SubRubricInline(admin.TabularInline):
    model = SubRubric

class SuperRubricAdmin(admin.ModelAdmin):
    # При добавлении новой Главной рубрики можно сразу же заполнить ее Подрубрики с помощью втроенного редактора.
    exclude = ('super_rubric',) # Исключили необязательное поле для Главных рубрик
    inlines = (SubRubricInline,)

admin.site.register(SuperRubric, SuperRubricAdmin)

class SubRubricAdmin(admin.ModelAdmin):
    form = SubRubricForm

admin.site.register(SubRubric, SubRubricAdmin)

class AdditionalImageInline(admin.TabularInline):
    model = AdditionalImage

class AdAdmin(admin.ModelAdmin):
    list_display = ('rubric', 'title', 'content', 'author', 'created_at')
    fields = ('rubric', 'author', 'title', 'content', 'price', 'contacts', 'image', 'is_active')
    inlines = (AdditionalImageInline, )

admin.site.register(Ad, AdAdmin)

class CommentAdmin(admin.ModelAdmin):
    list_display = ('author', 'content', 'created_at', 'is_active')
    list_display_links = ('author', 'content')
    list_filter = ('is_active',)
    search_fields = ('author', 'content', )
    date_hierarchy = 'created_at'
    fields = ('author', 'content', 'is_active', 'created_at')
    readonly_fields = ('created_at', )

admin.site.register(Comment, CommentAdmin)