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iMES.Core/Tenancy/TenancyManager.cs

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+using System;
+using System.Collections.Generic;
+using System.Text;
+using iMES.Core.ManageUser;
+
+namespace iMES.Core.Tenancy
+{
+    public static class TenancyManager<T> where T : class
+    {
+        /// <summary>
+        /// 数据库表名
+        /// </summary>
+        /// <param name="tableName"></param>
+        /// <returns></returns>
+        public static string GetSearchQueryable(string tableName)
+        {
+            string multiTenancyString = $"select * from {tableName}";
+            //超级管理员不限制
+            //if (UserContext.Current.IsSuperAdmin)
+            //{
+            //    return multiTenancyString;
+            //}
+            switch (tableName)
+            {
+                //例如：指定用户表指定查询条件
+                //case "Sys_User": 
+                //    multiTenancyString += $" where UserId='{UserContext.Current.UserId}'";
+                //    break;
+                default:
+                    //开启数租户数据隔离,用户只能看到自己的表数据(自己根据需要写条件做租户数据隔离)
+                    multiTenancyString += $" where CreateID='{UserContext.Current.UserId}'";
+                    break;
+            }
+            return multiTenancyString;
+        }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="tableName">数据库表名</param>
+        /// <param name="ids">当前操作的所有id</param>
+        /// <param name="tableKey">主键字段</param>
+        /// <returns></returns>
+        public static string GetMultiTenancySql(string tableName, string ids, string tableKey)
+        {
+            //使用方法同上
+            string multiTenancyString;
+            switch (tableName)
+            {
+                default:
+                    multiTenancyString = $"select count(*) FROM {tableName} " +
+                       $" where CreateID='{UserContext.Current.UserId}'" +
+                       $" and  { tableKey} in ({ids}) ";
+                    break;
+            }
+            return multiTenancyString;
+        }
+    }
+}