from django import forms from django.contrib import admin from django.core.urlresolvers import reverse from django.utils import timezone from django.utils.translation import ugettext_lazy as _ from orchestra.admin import ChangeViewActionsMixin from orchestra.admin.filters import UsedContentTypeFilter from orchestra.apps.accounts.admin import AccountAdminMixin from orchestra.core import services from .actions import update_orders, view_help from .models import Plan, ContractedPlan, Rate, Service class RateInline(admin.TabularInline): model = Rate ordering = ('plan', 'quantity') class PlanAdmin(admin.ModelAdmin): list_display = ('name', 'is_default', 'is_combinable', 'allow_multiple') list_filter = ('is_default', 'is_combinable', 'allow_multiple') inlines = [RateInline] class ContractedPlanAdmin(AccountAdminMixin, admin.ModelAdmin): list_display = ('plan', 'account_link') list_filter = ('plan__name',) class ServiceAdmin(ChangeViewActionsMixin, admin.ModelAdmin): list_display = ( 'description', 'content_type', 'handler_type', 'num_orders', 'is_active' ) list_filter = ('is_active', 'handler_type', UsedContentTypeFilter) fieldsets = ( (None, { 'classes': ('wide',), 'fields': ('description', 'content_type', 'match', 'handler_type', 'is_active') }), (_("Billing options"), { 'classes': ('wide',), 'fields': ('billing_period', 'billing_point', 'is_fee') }), (_("Pricing options"), { 'classes': ('wide',), 'fields': ('metric', 'pricing_period', 'rate_algorithm', 'on_cancel', 'payment_style', 'tax', 'nominal_price') }), ) inlines = [RateInline] actions = [update_orders] change_view_actions = actions + [view_help] def formfield_for_dbfield(self, db_field, **kwargs): """ Improve performance of account field and filter by account """ if db_field.name == 'content_type': models = [model._meta.model_name for model in services.get()] queryset = db_field.rel.to.objects kwargs['queryset'] = queryset.filter(model__in=models) if db_field.name in ['match', 'metric']: kwargs['widget'] = forms.TextInput(attrs={'size':'160'}) return super(ServiceAdmin, self).formfield_for_dbfield(db_field, **kwargs) def num_orders(self, service): num = service.orders__count url = reverse('admin:orders_order_changelist') url += '?service=%i&is_active=True' % service.pk return '%d' % (url, num) num_orders.short_description = _("Orders") num_orders.admin_order_field = 'orders__count' num_orders.allow_tags = True def get_queryset(self, request): qs = super(ServiceAdmin, self).get_queryset(request) # Count active orders qs = qs.extra(select={ 'orders__count': ( "SELECT COUNT(*) " "FROM orders_order " "WHERE orders_order.service_id = services_service.id AND (" " orders_order.cancelled_on IS NULL OR" " orders_order.cancelled_on > '%s' " ")" % timezone.now() ) }) return qs admin.site.register(Plan, PlanAdmin) admin.site.register(ContractedPlan, ContractedPlanAdmin) admin.site.register(Service, ServiceAdmin)