- 增加 FreeSql.Provider.Dameng 基于 DmProvider Ado.net 访问达梦数据库；#155

2025-06-18 20:08:15 +08:00 · 2020-04-14 23:38:27 +08:00
parent 82b612bae6
commit 0ac564f801
58 changed files with 11337 additions and 76 deletions
--- a/Providers/FreeSql.Provider.Dameng/Curd/DamengUpdate.cs
+++ b/Providers/FreeSql.Provider.Dameng/Curd/DamengUpdate.cs
@ -0,0 +1,77 @@
+using FreeSql.Internal;
+using FreeSql.Internal.Model;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FreeSql.Dameng.Curd
+{
+
+    class DamengUpdate<T1> : Internal.CommonProvider.UpdateProvider<T1> where T1 : class
+    {
+
+        public DamengUpdate(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere)
+            : base(orm, commonUtils, commonExpression, dywhere)
+        {
+        }
+
+        public override int ExecuteAffrows() => base.SplitExecuteAffrows(_batchRowsLimit > 0 ? _batchRowsLimit : 200, _batchParameterLimit > 0 ? _batchParameterLimit : 999);
+        public override List<T1> ExecuteUpdated() => base.SplitExecuteUpdated(_batchRowsLimit > 0 ? _batchRowsLimit : 200, _batchParameterLimit > 0 ? _batchParameterLimit : 999);
+
+
+        protected override List<T1> RawExecuteUpdated()
+        {
+            throw new NotImplementedException();
+        }
+
+        protected override void ToSqlCase(StringBuilder caseWhen, ColumnInfo[] primarys)
+        {
+            if (_table.Primarys.Length == 1)
+            {
+                var pk = _table.Primarys.First();
+                caseWhen.Append(_commonUtils.QuoteReadColumn(pk.CsType, pk.Attribute.MapType, _commonUtils.QuoteSqlName(pk.Attribute.Name)));
+                return;
+            }
+            caseWhen.Append("(");
+            var pkidx = 0;
+            foreach (var pk in _table.Primarys)
+            {
+                if (pkidx > 0) caseWhen.Append(" || '+' || ");
+                caseWhen.Append(_commonUtils.QuoteReadColumn(pk.CsType, pk.Attribute.MapType, _commonUtils.QuoteSqlName(pk.Attribute.Name)));
+                ++pkidx;
+            }
+            caseWhen.Append(")");
+        }
+
+        protected override void ToSqlWhen(StringBuilder sb, ColumnInfo[] primarys, object d)
+        {
+            if (_table.Primarys.Length == 1)
+            {
+                sb.Append(_commonUtils.FormatSql("{0}", _table.Primarys.First().GetMapValue(d)));
+                return;
+            }
+            sb.Append("(");
+            var pkidx = 0;
+            foreach (var pk in _table.Primarys)
+            {
+                if (pkidx > 0) sb.Append(" || '+' || ");
+                sb.Append(_commonUtils.FormatSql("{0}", pk.GetMapValue(d)));
+                ++pkidx;
+            }
+            sb.Append(")");
+        }
+
+#if net40
+#else
+        public override Task<int> ExecuteAffrowsAsync() => base.SplitExecuteAffrowsAsync(200, 999);
+        public override Task<List<T1>> ExecuteUpdatedAsync() => base.SplitExecuteUpdatedAsync(200, 999);
+
+        protected override Task<List<T1>> RawExecuteUpdatedAsync()
+        {
+            throw new NotImplementedException();
+        }
+#endif
+    }
+}