feat: auto complete stock change

stock/admin.py

@@ -4,6 +4,14 @@ from django.utils.safestring import mark_safe
 from . import models, services
 
 
+class StockAdminBase(admin.ModelAdmin):
+    """库存管理基础类，定义通用配置"""
+
+    def get_list_filter(self, request):
+        result = super().get_list_filter(request)
+        result = list(result) + ['created_at']
+        return result
+
 @admin.register(models.PurchaseOrder)
 class PurchaseOrderAdmin(admin.ModelAdmin):
     list_display = ('id', 'supplier', 'order_date', 'total_amount')
@@ -13,7 +21,7 @@ class PurchaseOrderAdmin(admin.ModelAdmin):
 
 
 @admin.register(models.Inventory)
-class InventoryAdmin(admin.ModelAdmin):
+class InventoryAdmin(StockAdminBase):
     list_display = (
         'id',
         'product',
@@ -22,12 +30,20 @@ class InventoryAdmin(admin.ModelAdmin):
         'quantity',
         'num_of_rolls',
         'minimum_quantity',
+        'frozen_quantity',
         'updated_at',
     )
     search_fields = ('product__name', 'warehouse__name')
     list_filter = ('warehouse',)
     ordering = ('-updated_at',)
 
+    @admin.display(description='冻结中数量')
+    def frozen_quantity(self, obj):
+        return services.get_frozen_stock_count(
+            product_id=obj.product_id,
+            warehouse_id=obj.warehouse_id
+        )
+
     @admin.display(description='颜色')
     def product_color(self, obj):
         return obj.product.color
@@ -45,7 +61,7 @@ class StockSnapshotAdmin(admin.ModelAdmin):
         'stock_change_record',
         'created_at',
     )
-    search_fields = ('product__name', 'warehouse__name', 'stock_change_record__id')
+    search_fields = ('product', 'warehouse', 'stock_change_record__id')
     list_filter = ('stock_change_record__type',)
     ordering = ('-created_at', )
 
@@ -73,12 +89,17 @@ class StockChangeDetailAdmin(admin.ModelAdmin):
         'stock_change_record',
         'product',
         'quantity',
+        'direction',
         'unit',
     )
     search_fields = ('stock_change_record__id', 'product__name')
     list_filter = ('stock_change_record', 'stock_change_record__type')
     ordering = ('-created_at',)
 
+    @admin.display(description='出入方向')
+    def direction(self, obj):
+        return '入库' if obj.stock_change_record.is_incoming else '出库'
+
 
 @admin.register(models.StockChangeRecord)
 class StockChangeRecordAdmin(admin.ModelAdmin):
@@ -131,4 +152,29 @@ class StockChangeRecordAdmin(admin.ModelAdmin):
         ]
         return mark_safe('<br>'.join(detail_list))
 
-    actions = [make_selected_stock_changes_completed]
+    actions = [make_selected_stock_changes_completed]
+
+
+@admin.register(models.StockFreeze)
+class StockFreezeAdmin(admin.ModelAdmin):
+    list_display = (
+        'id',
+        'product',
+        'warehouse',
+        'quantity',
+        'reason',
+        'created_at',
+    )
+    readonly_fields = (
+        'frozen_by',
+        'created_at',
+        'updated_at',
+        'cancelled_at',
+        'cancelled_by',
+        'completed_at',
+        'completed_by',
+        'completed_with',
+    )
+    search_fields = ('product__name', 'warehouse__name', 'reason')
+    list_filter = ('warehouse', 'created_at')
+    ordering = ('-created_at',)