fix: added external_finished_product into admin

shipment/admin.py

@@ -1,5 +1,5 @@
 from django.contrib import admin
-from .models import Shipment, SalesItem
+from .models import ExternalFinishedProduct, Shipment, SalesItem
 
 
 class SalesItemInline(admin.TabularInline):
@@ -9,14 +9,21 @@ class SalesItemInline(admin.TabularInline):
     readonly_fields = ['created_by']
 
 
+class ExternalFinishedProductInline(admin.TabularInline):
+    model = ExternalFinishedProduct
+    extra = 1
+    fields = ['style_name', 'num_of_rolls', 'remark', 'created_by', 'created_at']
+    readonly_fields = ['created_by', 'created_at']
+
+
 @admin.register(Shipment)
 class ShipmentAdmin(admin.ModelAdmin):
-    list_display = ['id', 'customer', 'shipment_date', 'items_count', 'created_by', 'created_at']
-    list_filter = ['shipment_date', 'created_at']
-    search_fields = ['customer__name', 'remark']
+    list_display = ['id', 'merchant', 'customer', 'shipment_date', 'status', 'external_id', 'items_count', 'created_by', 'created_at']
+    list_filter = ['merchant', 'status', 'shipment_date', 'created_at']
+    search_fields = ['customer__name', 'remark', 'external_id']
     readonly_fields = ['created_at', 'updated_at', 'created_by']
     date_hierarchy = 'shipment_date'
-    inlines = [SalesItemInline]
+    inlines = [SalesItemInline, ExternalFinishedProductInline]
     
     def items_count(self, obj):
         return obj.items.count()
@@ -30,7 +37,7 @@ class ShipmentAdmin(admin.ModelAdmin):
     def save_formset(self, request, form, formset, change):
         instances = formset.save(commit=False)
         for instance in instances:
-            if isinstance(instance, SalesItem) and not instance.pk:
+            if isinstance(instance, (SalesItem, ExternalFinishedProduct)) and not instance.pk:
                 instance.created_by = request.user
             instance.save()
         formset.save_m2m()
@@ -54,3 +61,17 @@ class SalesItemAdmin(admin.ModelAdmin):
         if not change:
             obj.created_by = request.user
         super().save_model(request, obj, form, change)
+
+
+@admin.register(ExternalFinishedProduct)
+class ExternalFinishedProductAdmin(admin.ModelAdmin):
+    list_display = ['id', 'shipment', 'style_name', 'num_of_rolls', 'remark', 'created_by', 'created_at']
+    list_filter = ['created_at', ('shipment', admin.EmptyFieldListFilter)]
+    search_fields = ['style_name', 'remark', 'shipment__external_id', 'shipment__customer__name']
+    readonly_fields = ['created_at', 'updated_at', 'created_by']
+    raw_id_fields = ['shipment']
+
+    def save_model(self, request, obj, form, change):
+        if not change:
+            obj.created_by = request.user
+        super().save_model(request, obj, form, change)