/// <summary>
/// determines if it contains a value
/// </summary>
/// <param name="query">query model</param>
/// <returns></returns>
public CheckExistResult Exist(IQuery query)
{
var dataPackages = GetDataPackages(query);
CheckExistResult result = new CheckExistResult()
{
IsExist = dataPackages?.Any(c => c.Operate != WarehouseDataOperate.Remove) ?? false
};
if (!result.IsExist)
{
var sourceDatas = dataPackages.Where(c => c.LifeSource == DataLifeSource.DataSource);
if (!sourceDatas.IsNullOrEmpty())
{
QueryFactory.AppendEntityIdentityCondition(sourceDatas.Select(c => c.PersistentData), query, true);
}
result.CheckQuery = query;
}
return(result);
}
/// <summary>
/// compute sum value
/// </summary>
/// <typeparam name="VT"></typeparam>
/// <param name="query"></param>
/// <returns></returns>
public ComputeResult <VT> Sum <VT>(IQuery query)
{
if (query == null || query.QueryFields.IsNullOrEmpty())
{
return(new ComputeResult <VT>()
{
Value = default(VT),
ComputeQuery = query
});
}
var dataPackages = GetDataPackages(query);
string propertyName = query.QueryFields.ElementAt(0);
var nowDataPackages = dataPackages.Where(c => c.Operate != WarehouseDataOperate.Remove);
dynamic value;
if (nowDataPackages.IsNullOrEmpty())
{
value = default(VT);
}
else
{
value = nowDataPackages.Sum(c => (dynamic)c.WarehouseData.GetPropertyValue <VT>(propertyName));
}
var result = new ComputeResult <VT>()
{
Value = value
};
var sourceDatas = dataPackages.Where(c => c.LifeSource == DataLifeSource.DataSource);
if (!sourceDatas.IsNullOrEmpty())
{
QueryFactory.AppendEntityIdentityCondition(sourceDatas.Select(c => c.PersistentData), query, true);
}
result.ComputeQuery = query;
return(result);
}
/// <summary>
/// delete data
/// </summary>
/// <param name="obj">obj</param>
/// <returns></returns>
public virtual async Task <ICommand> DeleteAsync(T obj)
{
return(await DeleteAsync(QueryFactory.AppendEntityIdentityCondition(obj)).ConfigureAwait(false));
}
/// <summary>
/// delete data
/// </summary>
/// <param name="obj">obj</param>
/// <returns></returns>
public virtual ICommand Delete(T obj)
{
return(Delete(QueryFactory.AppendEntityIdentityCondition(obj)));
}
/// <summary>
/// edit data
/// </summary>
/// <param name="newData">new data</param>
/// <param name="oldData">old data</param>
/// <returns></returns>
public virtual async Task <ICommand> ModifyAsync(T newData, T oldData)
{
return(await ModifyAsync(newData, oldData, QueryFactory.AppendEntityIdentityCondition(newData)).ConfigureAwait(false));
}
