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- 增加 人大金仓 Ado.Net 实现 FreeSql.Provider.KingbaseES #325；

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28810
2020-08-21 19:46:23 +08:00
parent 7fcae30d5b
commit f7ce4dc636
55 changed files with 12596 additions and 10 deletions
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208
Providers/FreeSql.Provider.KingbaseES/Curd/KingbaseESOnConflictDoUpdate.cs Normal file
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using FreeSql.Aop;
using FreeSql.Internal.Model;
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using System.Threading.Tasks;
namespace FreeSql.KingbaseES
{
public class KingbaseESOnConflictDoUpdate<T1> where T1 : class
{
internal KingbaseESInsert<T1> _insert;
internal KingbaseESUpdate<T1> _updatePriv;
internal KingbaseESUpdate<T1> _update => _updatePriv ??
(_updatePriv = new KingbaseESUpdate<T1>(_insert.InternalOrm, _insert.InternalCommonUtils, _insert.InternalCommonExpression, null) { InternalTableAlias = "EXCLUDED" }
.NoneParameter().SetSource(_insert.InternalSource) as KingbaseESUpdate<T1>);
ColumnInfo[] _columns;
bool _doNothing;
public KingbaseESOnConflictDoUpdate(IInsert<T1> insert, Expression<Func<T1, object>> columns = null)
{
_insert = insert as KingbaseESInsert<T1>;
if (_insert == null) throw new Exception("OnConflictDoUpdate 是 FreeSql.Provider.KingbaseES 特有的功能");
if (_insert._noneParameterFlag == "c") _insert._noneParameterFlag = "cu";
if (columns != null)
{
var colsList = new List<ColumnInfo>();
var cols = _insert.InternalCommonExpression.ExpressionSelectColumns_MemberAccess_New_NewArrayInit(null, columns?.Body, false, null).ToDictionary(a => a, a => true);
foreach (var col in _insert.InternalTable.Columns.Values)
if (cols.ContainsKey(col.Attribute.Name))
colsList.Add(col);
_columns = colsList.ToArray();
}
if (_columns == null || _columns.Any() == false)
_columns = _insert.InternalTable.Primarys;
if (_columns.Any() == false) throw new Exception("OnConflictDoUpdate 功能要求实体类必须设置 IsPrimary 属性");
}
protected void ClearData()
{
_insert.InternalClearData();
_updatePriv = null;
}
public KingbaseESOnConflictDoUpdate<T1> IgnoreColumns(Expression<Func<T1, object>> columns)
{
_update.IgnoreColumns(columns);
return this;
}
public KingbaseESOnConflictDoUpdate<T1> UpdateColumns(Expression<Func<T1, object>> columns)
{
_update.UpdateColumns(columns);
return this;
}
public KingbaseESOnConflictDoUpdate<T1> IgnoreColumns(string[] columns)
{
_update.IgnoreColumns(columns);
return this;
}
public KingbaseESOnConflictDoUpdate<T1> UpdateColumns(string[] columns)
{
_update.UpdateColumns(columns);
return this;
}
public KingbaseESOnConflictDoUpdate<T1> Set<TMember>(Expression<Func<T1, TMember>> column, TMember value)
{
_update.Set(column, value);
return this;
}
//由于表达式解析问题，ON CONFLICT("id") DO UPDATE SET 需要指定表别名，如 Set(a => a.Clicks + 1) 解析会失败
//暂时不开放这个功能，如有需要使用 SetRaw("click = t.click + 1") 替代该操作
//public OnConflictDoUpdate<T1> Set<TMember>(Expression<Func<T1, TMember>> exp)
//{
// _update.Set(exp);
// return this;
//}
public KingbaseESOnConflictDoUpdate<T1> SetRaw(string sql)
{
_update.SetRaw(sql);
return this;
}
public KingbaseESOnConflictDoUpdate<T1> DoNothing()
{
_doNothing = true;
return this;
}
public string ToSql()
{
var sb = new StringBuilder();
sb.Append(_insert.ToSql()).Append("\r\nON CONFLICT(");
for (var a = 0; a < _columns.Length; a++)
{
if (a > 0) sb.Append(", ");
sb.Append(_insert.InternalCommonUtils.QuoteSqlName(_columns[a].Attribute.Name));
}
if (_doNothing)
{
sb.Append(") DO NOTHING");
}
else
{
sb.Append(") DO UPDATE SET\r\n");
var sbSetEmpty = _update.InternalSbSet.Length == 0;
var sbSetIncrEmpty = _update.InternalSbSetIncr.Length == 0;
if (sbSetEmpty == false || sbSetIncrEmpty == false)
{
if (sbSetEmpty == false) sb.Append(_update.InternalSbSet.ToString().Substring(2));
if (sbSetIncrEmpty == false) sb.Append(sbSetEmpty ? _update.InternalSbSetIncr.ToString().Substring(2) : _update.InternalSbSetIncr.ToString());
}
else
{
var colidx = 0;
foreach (var col in _insert.InternalTable.Columns.Values)
{
if (col.Attribute.IsPrimary || _update.InternalIgnore.ContainsKey(col.Attribute.Name)) continue;
if (colidx > 0) sb.Append(", \r\n");
if (col.Attribute.IsVersion == true)
{
var field = _insert.InternalCommonUtils.QuoteSqlName(col.Attribute.Name);
sb.Append(field).Append(" = ").Append(_insert.InternalCommonUtils.QuoteSqlName(_insert.InternalTable.DbName)).Append(".").Append(field).Append(" + 1");
}
else if (_insert.InternalIgnore.ContainsKey(col.Attribute.Name))
{
var caseWhen = _update.InternalWhereCaseSource(col.CsName, sqlval => sqlval).Trim();
sb.Append(caseWhen);
if (caseWhen.EndsWith(" END")) _update.InternalToSqlCaseWhenEnd(sb, col);
}
else
{
var field = _insert.InternalCommonUtils.QuoteSqlName(col.Attribute.Name);
sb.Append(field).Append(" = EXCLUDED.").Append(field);
}
++colidx;
}
}
}
return sb.ToString();
}
public long ExecuteAffrows()
{
var sql = this.ToSql();
if (string.IsNullOrEmpty(sql)) return 0;
var before = new CurdBeforeEventArgs(_insert.InternalTable.Type, _insert.InternalTable, CurdType.Insert, sql, _insert.InternalParams);
_insert.InternalOrm.Aop.CurdBeforeHandler?.Invoke(_insert, before);
long ret = 0;
Exception exception = null;
try
{
ret = _insert.InternalOrm.Ado.ExecuteNonQuery(_insert.InternalConnection, _insert.InternalTransaction, CommandType.Text, sql, _insert.InternalParams);
}
catch (Exception ex)
{
exception = ex;
throw ex;
}
finally
{
var after = new CurdAfterEventArgs(before, exception, ret);
_insert.InternalOrm.Aop.CurdAfterHandler?.Invoke(_insert, after);
ClearData();
}
return ret;
}
#if net40
#else
async public Task<long> ExecuteAffrowsAsync()
{
var sql = this.ToSql();
if (string.IsNullOrEmpty(sql)) return 0;
var before = new CurdBeforeEventArgs(_insert.InternalTable.Type, _insert.InternalTable, CurdType.Insert, sql, _insert.InternalParams);
_insert.InternalOrm.Aop.CurdBeforeHandler?.Invoke(_insert, before);
long ret = 0;
Exception exception = null;
try
{
ret = await _insert.InternalOrm.Ado.ExecuteNonQueryAsync(_insert.InternalConnection, _insert.InternalTransaction, CommandType.Text, sql, _insert.InternalParams);
}
catch (Exception ex)
{
exception = ex;
throw ex;
}
finally
{
var after = new CurdAfterEventArgs(before, exception, ret);
_insert.InternalOrm.Aop.CurdAfterHandler?.Invoke(_insert, after);
ClearData();
}
return ret;
}
#endif
}
}