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- 增加 DbContext、Repository SaveManyToMany 方法，实现手工保存 ManyToMany 关联数据；

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This commit is contained in:
28810
2019-11-16 01:47:04 +08:00
parent 0f7dd75e64
commit e26dbfe526
8 changed files with 129 additions and 39 deletions
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56
FreeSql.DbContext/DbSet/DbSetSync.cs
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@ -135,50 +135,70 @@ namespace FreeSql
AddOrUpdateNavigateList(item, true);
}
}
static ConcurrentDictionary<Type, ConcurrentDictionary<string, FieldInfo>> _dicLazyIsSetField = new ConcurrentDictionary<Type, ConcurrentDictionary<string, FieldInfo>>();
/// <summary>
/// 保存实体的指定 ManyToMany 导航属性
/// </summary>
/// <param name="item">实体对象</param>
/// <param name="propertyName">属性名</param>
public void SaveManyToMany(TEntity item, string propertyName)
{
if (item == null) return;
if (_table.Properties.ContainsKey(propertyName) == false) throw new KeyNotFoundException($"{_table.Type.FullName} 不存在属性 {propertyName}");
if (_table.ColumnsByCsIgnore.ContainsKey(propertyName)) throw new ArgumentException($"{_table.Type.FullName} 类型已设置属性 {propertyName} 忽略特性");
var tref = _table.GetTableRef(propertyName, true);
if (tref.RefType != Internal.Model.TableRefType.ManyToMany) throw new ArgumentException($"{_table.Type.FullName} 类型的属性 {propertyName} 不是 ManyToMany 特性");
DbContextExecCommand();
var oldEnable = _db.Options.EnableAddOrUpdateNavigateList;
_db.Options.EnableAddOrUpdateNavigateList = false;
AddOrUpdateNavigateList(item, false, propertyName);
_db.Options.EnableAddOrUpdateNavigateList = oldEnable;
}
/// <summary>
/// 联级保存导航集合
/// </summary>
/// <param name="item">实体对象</param>
/// <param name="isAdd">是否为新增的实体对象</param>
void AddOrUpdateNavigateList(TEntity item, bool isAdd)
/// <param name="propertyName">指定保存的属性</param>
void AddOrUpdateNavigateList(TEntity item, bool isAdd, string propertyName = null)
{
Type itemType = null;
foreach (var prop in _table.Properties)
Action<PropertyInfo> action = prop =>
{
if (_table.ColumnsByCsIgnore.ContainsKey(prop.Key)) continue;
if (_table.ColumnsByCs.ContainsKey(prop.Key)) continue;
if (_table.ColumnsByCsIgnore.ContainsKey(prop.Name)) return;
if (_table.ColumnsByCs.ContainsKey(prop.Name)) return;
var tref = _table.GetTableRef(prop.Key, true);
if (tref == null) continue;
var tref = _table.GetTableRef(prop.Name, true);
if (tref == null) return;
switch (tref.RefType)
{
case Internal.Model.TableRefType.OneToOne:
case Internal.Model.TableRefType.ManyToOne:
continue;
return;
}
object propVal = null;
if (itemType == null) itemType = item.GetType();
if (_table.TypeLazy != null && itemType == _table.TypeLazy)
{
var lazyField = _dicLazyIsSetField.GetOrAdd(_table.TypeLazy, tl => new ConcurrentDictionary<string, FieldInfo>()).GetOrAdd(prop.Key, propName =>
var lazyField = _dicLazyIsSetField.GetOrAdd(_table.TypeLazy, tl => new ConcurrentDictionary<string, FieldInfo>()).GetOrAdd(prop.Name, propName =>
_table.TypeLazy.GetField($"__lazy__{propName}", BindingFlags.GetField | BindingFlags.NonPublic | BindingFlags.Instance));
if (lazyField != null)
{
var lazyFieldValue = (bool)lazyField.GetValue(item);
if (lazyFieldValue == false) continue;
if (lazyFieldValue == false) return;
}
propVal = prop.Value.GetValue(item, null);
propVal = prop.GetValue(item, null);
}
else
{
propVal = prop.Value.GetValue(item, null);
if (propVal == null) continue;
propVal = prop.GetValue(item, null);
if (propVal == null) return;
}
var propValEach = propVal as IEnumerable;
if (propValEach == null) continue;
if (propValEach == null) return;
DbSet<object> refSet = GetDbSetObject(tref.RefEntityType);
switch (tref.RefType)
{
@ -230,7 +250,7 @@ namespace FreeSql
foreach (var midItem in midList)
{
var curContains = new List<int>();
for(var curIdx = 0; curIdx < curList.Count; curIdx ++)
for (var curIdx = 0; curIdx < curList.Count; curIdx++)
{
var isEquals = true;
for (var midcolidx = tref.Columns.Count; midcolidx < tref.MiddleColumns.Count; midcolidx++)
@ -285,7 +305,13 @@ namespace FreeSql
}
break;
}
}
};
if (string.IsNullOrEmpty(propertyName))
foreach (var prop in _table.Properties)
action(prop.Value);
else if (_table.Properties.TryGetValue(propertyName, out var prop))
action(prop);
}
#endregion