Fix admin

backend/auction/admin.py

@@ -1,6 +1,27 @@
 from django.contrib import admin
 
-from auction.models import Auction
+from .models import Auction, AuctionItem
 
-# Register your models here.
-admin.site.register(Auction)
+
+class AuctionAdmin(admin.ModelAdmin):
+    list_display = ("id", "name", "start_date", "end_date", "is_published")
+    search_fields = ("name",)
+    list_filter = ("is_published", "start_date", "end_date")
+    ordering = ("-start_date",)
+
+
+class AuctionItemAdmin(admin.ModelAdmin):
+    list_display = ("id", "auction_id", "content_type", "object_id")
+    search_fields = ("auction_id__name", "content_type__model")
+    list_filter = ("auction_id", "content_type")
+
+    def formfield_for_foreignkey(self, db_field, request, **kwargs):
+        # This method can be used to filter foreign key choices in the admin
+        if db_field.name == "auction_id":
+            kwargs["queryset"] = Auction.objects.filter(is_published=True)
+        return super().formfield_for_foreignkey(db_field, request, **kwargs)
+
+
+# Register your models here
+admin.site.register(Auction, AuctionAdmin)
+admin.site.register(AuctionItem, AuctionItemAdmin)

backend/bid/admin.py

@@ -1,6 +1,30 @@
 from django.contrib import admin
+from django.contrib.contenttypes.admin import GenericTabularInline
+
+from auction.models import Auction
 
 from .models import Bid
 
-# Register your models here.
-admin.site.register(Bid)
+
+class BidAdmin(admin.ModelAdmin):
+    list_display = (
+        "id",
+        "amount",
+        "bidder",
+        "auction",
+        "content_type",
+        "object_id",
+        "created_at",
+    )
+    search_fields = ("bidder__username", "auction__name", "amount")
+    list_filter = ("auction", "bidder", "content_type")
+
+    def formfield_for_foreignkey(self, db_field, request, **kwargs):
+        # This method can be used to filter foreign key choices in the admin
+        if db_field.name == "auction":
+            kwargs["queryset"] = Auction.objects.filter(is_published=True)
+        return super().formfield_for_foreignkey(db_field, request, **kwargs)
+
+
+# Register your models here
+admin.site.register(Bid, BidAdmin)

backend/user/admin.py

@@ -2,6 +2,42 @@
 
 from .models import Admin, Bidder
 
-# Register your models here.
-admin.site.register(Admin)
-admin.site.register(Bidder)
+
+class AdminAdmin(admin.ModelAdmin):
+    list_display = (
+        "id",
+        "email",
+        "first_name",
+        "last_name",
+        "permission_level",
+        "created_at",
+    )
+    search_fields = ("email", "first_name", "last_name")
+    list_filter = ("permission_level",)
+
+
+class BidderAdmin(admin.ModelAdmin):
+    list_display = (
+        "id",
+        "email",
+        "first_name",
+        "last_name",
+        "company_name",
+        "bidder_number",
+        "is_verified",
+        "is_blacklisted",
+        "created_at",
+    )
+    search_fields = (
+        "email",
+        "first_name",
+        "last_name",
+        "company_name",
+        "bidder_number",
+    )
+    list_filter = ("is_verified", "is_blacklisted")
+
+
+# Register your models here
+admin.site.register(Admin, AdminAdmin)
+admin.site.register(Bidder, BidderAdmin)

backend/vehicle/admin.py

@@ -1,13 +1,104 @@
 from django.contrib import admin
 
 from .models import (
-    Brand, Equipment, Supplier, Trailer, Type, UnitImage, Vehicle)
-
-# Register your models here.
-admin.site.register(Brand)
-admin.site.register(Type)
-admin.site.register(Vehicle)
-admin.site.register(Equipment)
-admin.site.register(Supplier)
-admin.site.register(Trailer)
-admin.site.register(UnitImage)
+    Brand, Equipment, SavedUnits, Supplier, Trailer, Type, UnitImage, Vehicle)
+
+
+class BrandAdmin(admin.ModelAdmin):
+    list_display = ("id", "name", "created_at")
+    search_fields = ("name",)
+
+
+class TypeAdmin(admin.ModelAdmin):
+    list_display = ("id", "name", "created_at")
+    search_fields = ("name",)
+
+
+class VehicleAdmin(admin.ModelAdmin):
+    list_display = (
+        "id",
+        "unicode_id",
+        "model_number",
+        "chassis_number",
+        "brand",
+        "vehicle_type",
+        "is_sold",
+        "created_at",
+    )
+    search_fields = (
+        "model_number",
+        "chassis_number",
+        "brand__name",
+        "vehicle_type__name",
+    )
+    list_filter = ("brand", "vehicle_type", "is_sold")
+
+
+class EquipmentAdmin(admin.ModelAdmin):
+    list_display = (
+        "id",
+        "unicode_id",
+        "prefix_id",
+        "chassis_number",
+        "engine_number",
+        "brand",
+        "equipment_type",
+        "created_at",
+    )
+    search_fields = (
+        "prefix_id",
+        "chassis_number",
+        "engine_number",
+        "brand__name",
+        "equipment_type__name",
+    )
+    list_filter = ("brand", "equipment_type")
+
+
+class SupplierAdmin(admin.ModelAdmin):
+    list_display = ("id", "name", "created_at")
+    search_fields = ("name",)
+
+
+class TrailerAdmin(admin.ModelAdmin):
+    list_display = (
+        "id",
+        "unicode_id",
+        "chassis_number",
+        "supplier",
+        "trailer_type",
+        "number_of_axles",
+        "created_at",
+    )
+    search_fields = ("chassis_number", "supplier__name", "trailer_type__name")
+    list_filter = ("supplier", "trailer_type")
+
+
+class UnitImageAdmin(admin.ModelAdmin):
+    list_display = ("id", "image_url", "content_type", "object_id", "created_at")
+    search_fields = ("content_type__model",)
+    list_filter = ("content_type",)
+
+
+class SavedUnitsAdmin(admin.ModelAdmin):
+    list_display = (
+        "id",
+        "bidder_id",
+        "auction_id",
+        "content_type",
+        "object_id",
+        "created_at",
+    )
+    search_fields = ("bidder_id__first_name", "auction_id__name", "content_type__model")
+    list_filter = ("auction_id", "bidder_id", "content_type")
+
+
+# Register your models here
+admin.site.register(Brand, BrandAdmin)
+admin.site.register(Type, TypeAdmin)
+admin.site.register(Vehicle, VehicleAdmin)
+admin.site.register(Equipment, EquipmentAdmin)
+admin.site.register(Supplier, SupplierAdmin)
+admin.site.register(Trailer, TrailerAdmin)
+admin.site.register(UnitImage, UnitImageAdmin)
+admin.site.register(SavedUnits, SavedUnitsAdmin)