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## v0.9.17 (ODBC)

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- 增加 FreeSql.Provider.Odbc，实现 Oracle/SqlServer/MySql 的 Odbc 访问提供；
- 增加 FreeSqlBuilder.UseConnectionString 参数 providerType，可解决因包版本冲突时，可能无法反射获得 FreeSql.Provider 对应的类型，通常这个参数不需要设置；
- 优化 MaxLength 特性，当指定为 -1 时 DbType 会分别映射类型 text/nvarchar(max)/nvarchar2(4000)；
This commit is contained in:
28810
2019-09-19 23:14:30 +08:00
parent 8d92ccd751
commit f434418b2c
123 changed files with 31796 additions and 112 deletions
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105
Providers/FreeSql.Provider.Odbc/SqlServer/Curd/OdbcSqlServerDelete.cs Normal file
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using FreeSql.Internal;
using System;
using System.Collections.Generic;
using System.Data;
using System.Text;
using System.Threading.Tasks;
namespace FreeSql.Odbc.SqlServer
{
class OdbcSqlServerDelete<T1> : Internal.CommonProvider.DeleteProvider<T1> where T1 : class
{
public OdbcSqlServerDelete(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, 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;
}
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, 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;
}
}
}