enhance admin pages

counter/admin.py

@@ -21,19 +21,36 @@
 # Place - Suite 330, Boston, MA 02111-1307, USA.
 #
 #
-
+from ajax_select import make_ajax_form
 from django.contrib import admin
 from haystack.admin import SearchModelAdmin
 
 from counter.models import *
 
 
+@admin.register(Product)
 class ProductAdmin(SearchModelAdmin):
-    search_fields = ["name", "code"]
+    list_display = (
+        "name",
+        "code",
+        "product_type",
+        "selling_price",
+        "profit",
+        "archived",
+    )
+    search_fields = ("name", "code")
 
 
+@admin.register(Customer)
 class CustomerAdmin(SearchModelAdmin):
-    search_fields = ["account_id"]
+    list_display = ("user", "account_id", "amount")
+    search_fields = (
+        "account_id",
+        "user__username",
+        "user__first_name",
+        "user__last_name",
+    )
+    form = make_ajax_form(Customer, {"user": "users"})
 
 
 @admin.register(BillingInfo)
@@ -41,12 +58,86 @@ class BillingInfoAdmin(admin.ModelAdmin):
     list_display = ("first_name", "last_name", "address_1", "city", "country")
 
 
-admin.site.register(Customer, CustomerAdmin)
-admin.site.register(Product, ProductAdmin)
-admin.site.register(ProductType)
-admin.site.register(Counter)
-admin.site.register(Refilling)
-admin.site.register(Selling)
-admin.site.register(Permanency)
-admin.site.register(CashRegisterSummary)
-admin.site.register(Eticket)
+@admin.register(Counter)
+class CounterAdmin(admin.ModelAdmin):
+    list_display = ("name", "club", "type")
+    form = make_ajax_form(
+        Counter,
+        {
+            "products": "products",
+            "sellers": "users",
+        },
+    )
+
+
+@admin.register(Refilling)
+class RefillingAdmin(SearchModelAdmin):
+    list_display = ("customer", "amount", "counter", "payment_method", "date")
+    search_fields = (
+        "customer__user__username",
+        "customer__user__first_name",
+        "customer__user__last_name",
+        "customer__account_id",
+        "counter__name",
+    )
+    form = make_ajax_form(
+        Refilling,
+        {
+            "customer": "customers",
+            "operator": "users",
+        },
+    )
+
+
+@admin.register(Selling)
+class SellingAdmin(SearchModelAdmin):
+    list_display = ("customer", "label", "unit_price", "quantity", "counter", "date")
+    search_fields = (
+        "customer__user__username",
+        "customer__user__first_name",
+        "customer__user__last_name",
+        "customer__account_id",
+        "counter__name",
+    )
+    form = make_ajax_form(
+        Selling,
+        {
+            "customer": "customers",
+            "seller": "users",
+        },
+    )
+
+
+@admin.register(Permanency)
+class PermanencyAdmin(SearchModelAdmin):
+    list_display = ("user", "counter", "start", "duration")
+    search_fields = (
+        "user__username",
+        "user__first_name",
+        "user__last_name",
+        "counter__name",
+    )
+    form = make_ajax_form(Permanency, {"user": "users"})
+
+
+@admin.register(ProductType)
+class ProductTypeAdmin(admin.ModelAdmin):
+    list_display = ("name", "priority")
+
+
+@admin.register(CashRegisterSummary)
+class CashRegisterSummaryAdmin(SearchModelAdmin):
+    list_display = ("user", "counter", "date")
+    search_fields = (
+        "user__username",
+        "user__first_name",
+        "user__last_name",
+        "counter__name",
+    )
+    form = make_ajax_form(CashRegisterSummary, {"user": "users"})
+
+
+@admin.register(Eticket)
+class EticketAdmin(SearchModelAdmin):
+    list_display = ("product", "event_date", "event_title")
+    search_fields = ("product__name", "event_title")

counter/models.py

@@ -305,6 +305,10 @@ class Product(models.Model):
                 return True
         return False
 
+    @property
+    def profit(self):
+        return self.selling_price - self.purchase_price
+
     def __str__(self):
         return "%s (%s)" % (self.name, self.code)
 
@@ -762,6 +766,12 @@ class Permanency(models.Model):
             self.end.strftime("%Y-%m-%d %H:%M:%S") if self.end else "",
         )
 
+    @property
+    def duration(self):
+        if self.end is None:
+            return self.activity - self.start
+        return self.end - self.start
+
 
 class CashRegisterSummary(models.Model):
     user = models.ForeignKey(