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- 补充 fsql.InsertOrUpdate IfExistsDoNothing 数据存在时不做任何事(不更新) #330 #316；

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This commit is contained in:
28810
2020-07-18 11:58:58 +08:00
parent f97e7c21eb
commit 8d11993e6c
44 changed files with 5585 additions and 73 deletions
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24
FreeSql/FreeSql.xml
View File

@ -1151,6 +1151,13 @@
<param name="source">实体集合</param>
<returns></returns>
</member>
<member name="M:FreeSql.IInsertOrUpdate`1.IfExistsDoNothing">
<summary>
当记录存在时，什么都不做<para></para>
换句话：只有记录不存在时才插入
</summary>
<returns></returns>
</member>
<member name="M:FreeSql.IInsertOrUpdate`1.AsTable(System.Func{System.String,System.String})">
<summary>
设置表名规则，可用于分库/分表，参数1：默认表名；返回值：新表名；
@ -3929,14 +3936,17 @@
</member>
<member name="M:IFreeSql.InsertOrUpdate``1">
<summary>
插入或更新数据<para></para>
MySql: on duplicate key update<para></para>
PostgreSQL: on conflict do update<para></para>
SqlServer: merge into<para></para>
Oracle: merge into<para></para>
插入或更新数据，此功能依赖数据库特性（低版本可能不支持），参考如下：<para></para>
MySql 5.6+: on duplicate key update<para></para>
PostgreSQL 9.4+: on conflict do update<para></para>
SqlServer 2008+: merge into<para></para>
Oracle 11+: merge into<para></para>
Sqlite: replace into<para></para>
Dameng: merge into<para></para>
注意：还可以使用 FreeSql.Repository 的 InsertOrUpdate 方法
达梦: merge into<para></para>
人大金仓：on conflict do update<para></para>
神通：merge into<para></para>
MsAccess：不支持<para></para>
注意区别：FreeSql.Repository 仓储也有 InsertOrUpdate 方法（不依赖数据库特性）
</summary>
<typeparam name="T1"></typeparam>
<returns></returns>

7
FreeSql/Interface/Curd/IInsertOrUpdate.cs
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@ -35,6 +35,13 @@ namespace FreeSql
/// <returns></returns>
IInsertOrUpdate<T1> SetSource(IEnumerable<T1> source);
/// <summary>
/// 当记录存在时，什么都不做<para></para>
/// 换句话：只有记录不存在时才插入
/// </summary>
/// <returns></returns>
IInsertOrUpdate<T1> IfExistsDoNothing();
/// <summary>
/// 设置表名规则，可用于分库/分表，参数1：默认表名；返回值：新表名；
/// </summary>

17
FreeSql/Interface/IFreeSql.cs
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@ -45,14 +45,17 @@ public interface IFreeSql : IDisposable
IInsert<T1> Insert<T1>(IEnumerable<T1> source) where T1 : class;
/// <summary>
/// 插入或更新数据<para></para>
/// MySql: on duplicate key update<para></para>
/// PostgreSQL: on conflict do update<para></para>
/// SqlServer: merge into<para></para>
/// Oracle: merge into<para></para>
/// 插入或更新数据，此功能依赖数据库特性（低版本可能不支持），参考如下：<para></para>
/// MySql 5.6+: on duplicate key update<para></para>
/// PostgreSQL 9.4+: on conflict do update<para></para>
/// SqlServer 2008+: merge into<para></para>
/// Oracle 11+: merge into<para></para>
/// Sqlite: replace into<para></para>
/// Dameng: merge into<para></para>
/// 注意：还可以使用 FreeSql.Repository 的 InsertOrUpdate 方法
/// 达梦: merge into<para></para>
/// 人大金仓：on conflict do update<para></para>
/// 神通：merge into<para></para>
/// MsAccess：不支持<para></para>
/// 注意区别：FreeSql.Repository 仓储也有 InsertOrUpdate 方法（不依赖数据库特性）
/// </summary>
/// <typeparam name="T1"></typeparam>
/// <returns></returns>

7
FreeSql/Internal/CommonProvider/InsertOrUpdateProvider.cs
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@ -19,6 +19,7 @@ namespace FreeSql.Internal.CommonProvider
protected CommonUtils _commonUtils;
protected CommonExpression _commonExpression;
protected List<T1> _source = new List<T1>();
protected bool _doNothing = false;
protected Dictionary<string, bool> _auditValueChangedDict = new Dictionary<string, bool>(StringComparer.CurrentCultureIgnoreCase);
protected TableInfo _table;
protected Func<string, string> _tableRule;
@ -106,6 +107,12 @@ namespace FreeSql.Internal.CommonProvider
return this;
}
public IInsertOrUpdate<T1> IfExistsDoNothing()
{
_doNothing = true;
return this;
}
protected string TableRuleInvoke()
{
if (_tableRule == null) return _table.DbName;

4
FreeSql/Internal/CommonProvider/InsertProvider.cs
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@ -494,7 +494,8 @@ namespace FreeSql.Internal.CommonProvider
public virtual string ToSql() => ToSqlValuesOrSelectUnionAll(true);
public string ToSqlValuesOrSelectUnionAll(bool isValues = true)
public string ToSqlValuesOrSelectUnionAll(bool isValues = true) => ToSqlValuesOrSelectUnionAllExtension101(isValues, null);
public string ToSqlValuesOrSelectUnionAllExtension101(bool isValues, Action<object, int, StringBuilder> onrow)
{
if (_source == null || _source.Any() == false) return null;
var sb = new StringBuilder();
@ -541,6 +542,7 @@ namespace FreeSql.Internal.CommonProvider
++colidx2;
}
if (isValues) sb.Append(")");
onrow?.Invoke(d, didx, sb);
++didx;
}
if (_noneParameter && specialParams.Any())