feat: 实现字典管理后端

src/Application/TakeoutSaaS.Application/Dictionary/Services/DictionaryMapper.cs

@@ -0,0 +1,46 @@
+using TakeoutSaaS.Application.Dictionary.Models;
+using TakeoutSaaS.Domain.Dictionary.Entities;
+
+namespace TakeoutSaaS.Application.Dictionary.Services;
+
+/// <summary>
+/// 字典实体映射辅助。
+/// </summary>
+internal static class DictionaryMapper
+{
+    internal static DictionaryGroupDto ToGroupDto(DictionaryGroup group, IReadOnlyList<DictionaryItemDto>? items = null)
+    {
+        return new DictionaryGroupDto
+        {
+            Id = group.Id,
+            TenantId = group.TenantId,
+            Code = group.Code,
+            Name = group.Name,
+            Scope = group.Scope,
+            AllowOverride = group.AllowOverride,
+            Description = group.Description,
+            IsEnabled = group.IsEnabled,
+            CreatedAt = group.CreatedAt,
+            UpdatedAt = group.UpdatedAt,
+            RowVersion = group.RowVersion,
+            Items = items ?? Array.Empty<DictionaryItemDto>()
+        };
+    }
+
+    internal static DictionaryItemDto ToItemDto(DictionaryItem item)
+    {
+        return new DictionaryItemDto
+        {
+            Id = item.Id,
+            GroupId = item.GroupId,
+            Key = item.Key,
+            Value = DictionaryValueConverter.Deserialize(item.Value),
+            IsDefault = item.IsDefault,
+            IsEnabled = item.IsEnabled,
+            SortOrder = item.SortOrder,
+            Description = item.Description,
+            Source = item.TenantId == 0 ? "system" : "tenant",
+            RowVersion = item.RowVersion
+        };
+    }
+}