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ServerCommon/Doc/UserBase/RentalDoc.cs

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+using Newtonsoft.Json;
+using ServerCore; using ServerBase;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Numerics;
+using System.Text;
+using System.Threading.Tasks;
+
+using OWNER_GUID = System.String;
+
+namespace ServerCommon
+{
+    public class RentalAttrib : AttribBase
+    {
+        [JsonProperty("land_meta_id")]
+        public int LandMetaId { get; set; }
+
+        [JsonProperty("building_meta_id")]
+        public int BuildingMetaId { get; set; }
+
+        [JsonProperty("floor")]
+        public int Floor { get; set; }
+
+        [JsonProperty("myhome_guid")]
+        public string MyhomeGuid { get; set; } = string.Empty;
+
+        [JsonProperty("rental_finish_time")]
+        public DateTime RentalFinishTime { get; set; } = new();
+
+        public RentalAttrib()
+            : base(typeof(RentalAttrib).Name, false)
+        { }
+    }
+
+    //=============================================================================================
+    // PK(Partition Key)    : "rental#user_guid"
+    // SK(Sort Key)         : "address#landId#buidlingId#floor"
+    // DocType              : RentalDoc
+    // RentalAttrib         : {}
+    // ...
+    //=============================================================================================
+
+    public class RentalDoc : DynamoDbDocBase
+    {
+        private static string getPrefixOfPK() { return "rental#"; }
+
+        private static string getPrefixOfSK() { return "address#"; }
+        public RentalDoc()
+            : base(typeof(RentalDoc).Name)
+        {
+            appendAttribWrapperAll();
+        }
+
+        public RentalDoc(string userGuid, string address)
+            : base(typeof(RentalDoc).Name)
+        {
+            setCombinationKeyForPK(userGuid);
+            setCombinationKeyForSK(address);
+
+            appendAttribWrapperAll();
+
+            fillUpPrimaryKey(onMakePK(), onMakeSK());
+        }
+
+        public RentalDoc(string userGuid, string address, long ttlSeconds)
+            : base(typeof(RentalDoc).Name, ttlSeconds)
+        {
+            setCombinationKeyForPK(userGuid);
+            setCombinationKeyForSK(address);
+
+            appendAttribWrapperAll();
+
+            fillUpPrimaryKey(onMakePK(), onMakeSK());
+        }
+
+        private void appendAttribWrapperAll()
+        {
+            appendAttribWrapper(new AttribWrapper<RentalAttrib>());
+        }
+
+        protected override string onGetPrefixOfPK()
+        {
+            return getPrefixOfPK();
+        }
+
+        protected override string onGetPrefixOfSK()
+        {
+            return getPrefixOfSK();
+        }
+
+        protected override string onMakeSK()
+        {
+            return $"{onGetPrefixOfSK()}{getCombinationKeyForSK()}";
+        }
+
+        protected override ServerErrorCode onCheckAndSetSK(string sortKey)
+        {
+            getPrimaryKey().fillUpSK(sortKey);
+
+            return ServerErrorCode.Success;
+        }
+    }
+}