/// <summary>
/// Handle IQuery before execute
/// </summary>
/// <param name="query">Query object</param>
/// <param name="usageScene">Usage scene</param>
/// <param name="queryHandler">Query handler</param>
/// <returns>Return the real query object to use</returns>
internal static IQuery HandleQueryObjectBeforeExecute(IQuery query, QueryUsageScene usageScene, Func <IQuery, IQuery> queryHandler = null)
{
var newQuery = query?.DeepCopy();
if (queryHandler != null)
{
newQuery = queryHandler(newQuery);
}
return(newQuery);
}
/// <summary>
/// Append repository condition
/// </summary>
/// <param name="originalQuery">Original query</param>
/// <returns>Return the newest query object</returns>
IQuery AppendRepositoryCondition(IQuery originalQuery, QueryUsageScene usageScene)
{
if (originalQuery == null)
{
originalQuery = QueryManager.Create();
originalQuery.SetEntityType(entityType);
}
else
{
originalQuery.SetEntityType(entityType);
}
//primary query
GlobalConditionFilter conditionFilter = new GlobalConditionFilter()
{
OriginalQuery = originalQuery,
UsageSceneEntityType = entityType,
EntityType = entityType,
SourceType = QuerySourceType.Repository,
UsageScene = usageScene
};
var conditionFilterResult = QueryManager.GetGlobalCondition(conditionFilter);
if (conditionFilterResult != null)
{
conditionFilterResult.AppendTo(originalQuery);
}
//subqueries
if (!originalQuery.Subqueries.IsNullOrEmpty())
{
foreach (var squery in originalQuery.Subqueries)
{
AppendSubqueryCondition(squery, conditionFilter);
}
}
//join
if (!originalQuery.JoinItems.IsNullOrEmpty())
{
foreach (var jitem in originalQuery.JoinItems)
{
AppendJoinQueryCondition(jitem.JoinQuery, conditionFilter);
}
}
return(originalQuery);
}
/// <summary>
/// Handle IQuery after execute
/// </summary>
/// <param name="originalQuery">Original query</param>
/// <param name="executeQuery">Execute query</param>
/// <param name="usageScene">Usage scene</param>
internal static void HandleQueryObjectAfterExecute(IQuery originalQuery, IQuery executeQuery, QueryUsageScene usageScene)
{
originalQuery?.Reset();
}