private void PerformAutoLogic(esDataSourceSelectEventArgs e)
{
esDynamicQuery query = e.Query != null ? e.Query : e.Collection.es.Query;
IDynamicQuerySerializableInternal iQuery = query as IDynamicQuerySerializableInternal;
if (this.autoPaging)
{
query.es.PageNumber = e.PageNumber;
query.es.PageSize = e.PageSize;
}
if (this.autoSorting)
{
if (e.SortItems != null)
{
foreach (esDataSourceSortItem sortItem in e.SortItems)
{
esColumnMetadata col = e.Collection.es.Meta.Columns.FindByPropertyName(sortItem.Property);
if (col != null)
{
query.OrderBy(col.Name, sortItem.Direction);
}
else if (sortItem.Property[0] == '<')
{
query.OrderBy(sortItem.Property, sortItem.Direction);
}
}
}
else
{
if (this.AutoPaging)
{
List <esColumnMetadata> pks = e.Collection.es.Meta.Columns.PrimaryKeys;
if (pks != null)
{
foreach (esColumnMetadata pk in pks)
{
query.OrderBy(pk.Name, esOrderByDirection.Ascending);
}
}
}
}
}
if (this.autoSorting || this.AutoPaging)
{
if (e.Query != null)
{
IEntityCollection iColl = e.Collection as IEntityCollection;
iColl.HookupQuery(query);
}
query.Load();
}
}
private void FetchTotalRowCount(esDataSourceSelectEventArgs e)
{
esDynamicQuery query = e.Query != null ? e.Query : e.Collection.es.Query;
IDynamicQuerySerializableInternal iQuery = query as IDynamicQuerySerializableInternal;
if (e.Arguments.RetrieveTotalRowCount)
{
if (this.totalRowCount == -1)
{
#region Backup
//
// Back up everything cause we're going to restore it
//
List <esExpression> select = iQuery.InternalSelectColumns;
List <esOrderByItem> orderBy = iQuery.InternalOrderByItems;
bool countAll = query.es.CountAll;
string countAllAlias = query.es.CountAllAlias;
int? pageNumber = query.es.PageNumber;
int? pageSize = query.es.PageSize;
string lastQuery = query.es.LastQuery;
EntitySpaces.Interfaces.esDynamicQuery.QueryLoadedDelegate origDelegate = query.OnLoadDelegate;
#endregion
//
// Clear some stuff so we can make our query
//
iQuery.InternalSelectColumns = null;
iQuery.InternalOrderByItems = null;
query.es.CountAll = true;
query.es.CountAllAlias = "Count";
query.es.PageNumber = null;
query.es.PageSize = null;
object o = query.OnLoadDelegate;
try
{
query.OnLoadDelegate = this.OnQueryLoaded;
if (query.Load())
{
this.totalRowCount = Convert.ToInt32(table.Rows[0]["Count"]);
}
}
finally
{
#region Restore
iQuery.InternalSelectColumns = select;
iQuery.InternalOrderByItems = orderBy;
query.es.CountAll = countAll;
query.es.CountAllAlias = countAllAlias;
query.es.PageNumber = pageNumber;
query.es.PageSize = pageSize;
query.OnLoadDelegate = origDelegate;
iQuery.LastQuery = lastQuery;
#endregion Restore
}
}
e.Arguments.TotalRowCount = this.totalRowCount;
}
}
