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- 恢复 IBaseRepository SaveMany 方法；

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2881099
2024-08-21 03:18:52 +08:00
parent dd4aa0259f
commit 528d8a3f99
6 changed files with 415 additions and 0 deletions
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68
FreeSql.DbContext/DbSet/DbSetSync.cs
View File

@ -843,5 +843,73 @@ namespace FreeSql
}
}
#endregion
/// <summary>
/// 保存实体的指定 ManyToMany/OneToMany 导航属性（完整对比）<para></para>
/// 场景：在关闭级联保存功能之后，手工使用本方法<para></para>
/// 例子：保存商品的 OneToMany 集合属性，SaveMany(goods, "Skus")<para></para>
/// 当 goods.Skus 为空(非null)时，会删除表中已存在的所有数据<para></para>
/// 当 goods.Skus 不为空(非null)时，添加/更新后，删除表中不存在 Skus 集合属性的所有记录
/// </summary>
/// <param name="item">实体对象</param>
/// <param name="propertyName">属性名</param>
public void SaveMany(TEntity item, string propertyName)
{
if (item == null) return;
if (string.IsNullOrEmpty(propertyName)) return;
if (_table.Properties.TryGetValue(propertyName, out var prop) == false) throw new KeyNotFoundException(DbContextStrings.NotFound_Property(_table.Type.FullName, propertyName));
if (_table.ColumnsByCsIgnore.ContainsKey(propertyName)) throw new ArgumentException(DbContextStrings.TypeHasSetProperty_IgnoreAttribute(_table.Type.FullName, propertyName));
var tref = _table.GetTableRef(propertyName, true, false);
if (tref == null) return;
switch (tref.RefType)
{
case TableRefType.OneToOne:
case TableRefType.ManyToOne:
case TableRefType.PgArrayToMany:
throw new ArgumentException(DbContextStrings.PropertyOfType_IsNot_OneToManyOrManyToMany(_table.Type.FullName, propertyName));
}
DbContextFlushCommand();
var oldEnable = _db.Options.EnableCascadeSave;
_db.Options.EnableCascadeSave = false;
try
{
AddOrUpdateNavigate(item, false, propertyName);
if (tref.RefType == TableRefType.OneToMany)
{
DbContextFlushCommand();
//删除没有保存的数据，求出主体的条件
var deleteWhereParentParam = Expression.Parameter(typeof(object), "a");
Expression whereParentExp = null;
for (var colidx = 0; colidx < tref.Columns.Count; colidx++)
{
var whereExp = Expression.Equal(
Expression.MakeMemberAccess(Expression.Convert(deleteWhereParentParam, tref.RefEntityType), tref.RefColumns[colidx].Table.Properties[tref.RefColumns[colidx].CsName]),
Expression.Constant(
FreeSql.Internal.Utils.GetDataReaderValue(
tref.Columns[colidx].CsType,
_db.OrmOriginal.GetEntityValueWithPropertyName(_table.Type, item, tref.Columns[colidx].CsName)), tref.RefColumns[colidx].CsType)
);
if (whereParentExp == null) whereParentExp = whereExp;
else whereParentExp = Expression.AndAlso(whereParentExp, whereExp);
}
var propValEach = GetItemValue(item, prop) as IEnumerable;
var subDelete = _db.OrmOriginal.Delete<object>().AsType(tref.RefEntityType)
.WithTransaction(_uow?.GetOrBeginTransaction())
.Where(Expression.Lambda<Func<object, bool>>(whereParentExp, deleteWhereParentParam));
foreach (var propValItem in propValEach)
{
subDelete.WhereDynamic(propValEach, true);
break;
}
subDelete.ExecuteAffrows();
}
}
finally
{
_db.Options.EnableCascadeSave = oldEnable;
}
}
}
}

22
FreeSql.DbContext/FreeSql.DbContext.xml
View File

@ -221,6 +221,17 @@
<param name="predicate"></param>
<returns></returns>
</member>
<member name="M:FreeSql.DbSet`1.SaveMany(`0,System.String)">
<summary>
保存实体的指定 ManyToMany/OneToMany 导航属性（完整对比）<para></para>
场景：在关闭级联保存功能之后，手工使用本方法<para></para>
例子：保存商品的 OneToMany 集合属性，SaveMany(goods, "Skus")<para></para>
当 goods.Skus 为空(非null)时，会删除表中已存在的所有数据<para></para>
当 goods.Skus 不为空(非null)时，添加/更新后，删除表中不存在 Skus 集合属性的所有记录
</summary>
<param name="item">实体对象</param>
<param name="propertyName">属性名</param>
</member>
<member name="M:FreeSql.Extensions.EfCoreFluentApi.EfCoreColumnFluent.Help">
<summary>
使用 FreeSql FluentApi 方法，当 EFCore FluentApi 方法无法表示的时候使用
@ -573,6 +584,17 @@
<param name="predicate"></param>
<returns></returns>
</member>
<member name="M:FreeSql.IBaseRepository`1.SaveMany(`0,System.String)">
<summary>
保存实体的指定 ManyToMany/OneToMany 导航属性（完整对比）<para></para>
场景：在关闭级联保存功能之后，手工使用本方法<para></para>
例子：保存商品的 OneToMany 集合属性，SaveMany(goods, "Skus")<para></para>
当 goods.Skus 为空(非null)时，会删除表中已存在的所有数据<para></para>
当 goods.Skus 不为空(非null)时，添加/更新后，删除表中不存在 Skus 集合属性的所有记录
</summary>
<param name="entity">实体对象</param>
<param name="propertyName">属性名</param>
</member>
<member name="M:FreeSql.IBaseRepository`1.BeginEdit(System.Collections.Generic.List{`0})">
<summary>
开始编辑数据，然后调用方法 EndEdit 分析出添加、修改、删除 SQL 语句进行执行<para></para>

6
FreeSql.DbContext/Repository/Repository/BaseRepository.cs
View File

@ -151,6 +151,12 @@ namespace FreeSql
return entity;
}
public virtual void SaveMany(TEntity entity, string propertyName)
{
_dbset.SaveMany(entity, propertyName);
_db.SaveChanges();
}
public virtual void BeginEdit(List<TEntity> data) => _dbset.BeginEdit(data);
public virtual int EndEdit(List<TEntity> data = null)
{

11
FreeSql.DbContext/Repository/Repository/IBaseRepository.cs
View File

@ -90,6 +90,17 @@ namespace FreeSql
/// <returns></returns>
List<object> DeleteCascadeByDatabase(Expression<Func<TEntity, bool>> predicate);
/// <summary>
/// 保存实体的指定 ManyToMany/OneToMany 导航属性（完整对比）<para></para>
/// 场景：在关闭级联保存功能之后，手工使用本方法<para></para>
/// 例子：保存商品的 OneToMany 集合属性，SaveMany(goods, "Skus")<para></para>
/// 当 goods.Skus 为空(非null)时，会删除表中已存在的所有数据<para></para>
/// 当 goods.Skus 不为空(非null)时，添加/更新后，删除表中不存在 Skus 集合属性的所有记录
/// </summary>
/// <param name="entity">实体对象</param>
/// <param name="propertyName">属性名</param>
void SaveMany(TEntity entity, string propertyName);
/// <summary>
/// 开始编辑数据，然后调用方法 EndEdit 分析出添加、修改、删除 SQL 语句进行执行<para></para>
/// 场景：winform 加载表数据后，一顿添加、修改、删除操作之后，最后才点击【保存】<para></para><para></para>