- 修复 Ado.Query 查询字段重复时报错；#162 #165 #161 - 增加 FreeSql.Provider.MsAccess 支持 Access 数据库操作，已通过 2003/2007 版本测试；

2025-11-04 09:15:27 +08:00 · 2019-12-24 06:16:52 +08:00
parent d5ed1c8a30
commit a92c279c72
69 changed files with 10380 additions and 207 deletions
--- a/Providers/FreeSql.Provider.MsAccess/Curd/MsAccessDelete.cs
+++ b/Providers/FreeSql.Provider.MsAccess/Curd/MsAccessDelete.cs
@@ -0,0 +1,109 @@
+using FreeSql.Internal;
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FreeSql.MsAccess.Curd
+{
+
+    class MsAccessDelete<T1> : Internal.CommonProvider.DeleteProvider<T1> where T1 : class
+    {
+        public MsAccessDelete(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere)
+            : base(orm, commonUtils, commonExpression, dywhere)
+        {
+        }
+
+        public override List<T1> ExecuteDeleted()
+        {
+            var sql = this.ToSql();
+            if (string.IsNullOrEmpty(sql)) return new List<T1>();
+
+            var sb = new StringBuilder();
+            sb.Append(" OUTPUT ");
+            var colidx = 0;
+            foreach (var col in _table.Columns.Values)
+            {
+                if (colidx > 0) sb.Append(", ");
+                sb.Append("DELETED.").Append(_commonUtils.QuoteReadColumn(col.Attribute.MapType, _commonUtils.QuoteSqlName(col.Attribute.Name))).Append(" as ").Append(_commonUtils.QuoteSqlName(col.CsName));
+                ++colidx;
+            }
+
+            var validx = sql.IndexOf(" WHERE ");
+            if (validx == -1) throw new ArgumentException("找不到 WHERE ");
+            sb.Insert(0, sql.Substring(0, validx));
+            sb.Append(sql.Substring(validx));
+
+            sql = sb.ToString();
+            var dbParms = _params.ToArray();
+            var before = new Aop.CurdBeforeEventArgs(_table.Type, _table, Aop.CurdType.Delete, sql, dbParms);
+            _orm.Aop.CurdBefore?.Invoke(this, before);
+            var ret = new List<T1>();
+            Exception exception = null;
+            try
+            {
+                ret = _orm.Ado.Query<T1>(_connection, _transaction, CommandType.Text, sql, dbParms);
+            }
+            catch (Exception ex)
+            {
+                exception = ex;
+                throw ex;
+            }
+            finally
+            {
+                var after = new Aop.CurdAfterEventArgs(before, exception, ret);
+                _orm.Aop.CurdAfter?.Invoke(this, after);
+            }
+            this.ClearData();
+            return ret;
+        }
+
+#if net40
+#else
+        async public override Task<List<T1>> ExecuteDeletedAsync()
+        {
+            var sql = this.ToSql();
+            if (string.IsNullOrEmpty(sql)) return new List<T1>();
+
+            var sb = new StringBuilder();
+            sb.Append(" OUTPUT ");
+            var colidx = 0;
+            foreach (var col in _table.Columns.Values)
+            {
+                if (colidx > 0) sb.Append(", ");
+                sb.Append("DELETED.").Append(_commonUtils.QuoteReadColumn(col.Attribute.MapType, _commonUtils.QuoteSqlName(col.Attribute.Name))).Append(" as ").Append(_commonUtils.QuoteSqlName(col.CsName));
+                ++colidx;
+            }
+
+            var validx = sql.IndexOf(" WHERE ");
+            if (validx == -1) throw new ArgumentException("找不到 WHERE ");
+            sb.Insert(0, sql.Substring(0, validx));
+            sb.Append(sql.Substring(validx));
+
+            sql = sb.ToString();
+            var dbParms = _params.ToArray();
+            var before = new Aop.CurdBeforeEventArgs(_table.Type, _table, Aop.CurdType.Delete, sql, dbParms);
+            _orm.Aop.CurdBefore?.Invoke(this, before);
+            var ret = new List<T1>();
+            Exception exception = null;
+            try
+            {
+                ret = await _orm.Ado.QueryAsync<T1>(_connection, _transaction, CommandType.Text, sql, dbParms);
+            }
+            catch (Exception ex)
+            {
+                exception = ex;
+                throw ex;
+            }
+            finally
+            {
+                var after = new Aop.CurdAfterEventArgs(before, exception, ret);
+                _orm.Aop.CurdAfter?.Invoke(this, after);
+            }
+            this.ClearData();
+            return ret;
+        }
+#endif
+    }
+}