- 增加 IFreeSql.InsertOrUpdate 方法 #316

Providers/FreeSql.Provider.Sqlite/Curd/SqliteInsertOrUpdate.cs

@@ -0,0 +1,30 @@
+using FreeSql.Internal;
+using System.Linq;
+
+namespace FreeSql.Sqlite.Curd
+{
+
+    class SqliteInsertOrUpdate<T1> : Internal.CommonProvider.InsertOrUpdateProvider<T1> where T1 : class
+    {
+        public SqliteInsertOrUpdate(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression)
+            : base(orm, commonUtils, commonExpression)
+        {
+        }
+
+        public override string ToSql()
+        {
+            if (_source?.Any() != true) return null;
+
+            var insert = _orm.Insert<T1>()
+                .AsTable(_tableRule).AsType(_table.Type)
+                .WithConnection(_connection)
+                .WithTransaction(_transaction)
+                .NoneParameter(true) as Internal.CommonProvider.InsertProvider<T1>;
+            insert._source = _source;
+            var sql = insert.ToSql();
+            if (sql.StartsWith("INSERT INTO ") == false) return null;
+            _params = insert._params;
+            return $"REPLACE INTO {sql.Substring("INSERT INTO ".Length)}";
+        }
+    }
+}