/// <summary>
/// 查询指定实体的孩子。
/// </summary>
/// <param name="entity">当前实体。</param>
/// <param name="predicate">用于测试每个元素是否满足条件的函数。</param>
/// <param name="recurrence">是否递归出所有孩子。</param>
/// <returns></returns>
public virtual IQueryable <TEntity> QueryChildren(TEntity entity, Expression <Func <TEntity, bool> > predicate = null, bool recurrence = false)
{
var expression = TreeExpressionBuilder.BuildQueryChildrenExpression(metaTree, entity, predicate, recurrence);
var querable = QueryHelper.CreateQuery <TEntity>(repository.Provider, expression);
var orderExp = TreeExpressionBuilder.BuildOrderByExpression <TEntity>(metaTree, querable.Expression);
return(repository.Provider.CreateQuery <TEntity>(orderExp));
}
/// <summary>
/// 查询指定实体的孩子。
/// </summary>
/// <param name="entity">当前实体。</param>
/// <param name="predicate">用于测试每个元素是否满足条件的函数。</param>
/// <param name="recurrence">是否递归出所有孩子。</param>
/// <returns></returns>
public virtual IQueryable <TEntity> QueryChildren(TEntity entity, Expression <Func <TEntity, bool> > predicate = null, bool recurrence = false)
{
var expression = TreeExpressionBuilder.BuildQueryChildrenExpression <TEntity>(GetMetadata(), entity, predicate, recurrence);
return(QueryHelper.CreateQuery <TEntity>(Provider, expression));
}
