/// <summary>
/// Filters the results.
/// </summary>
/// <param name="rockContext">The rock context.</param>
/// <param name="service">The service.</param>
/// <param name="itemQry">The item qry.</param>
/// <returns></returns>
private IQueryable <ContentChannelItem> FilterResults(RockContext rockContext, ContentChannelItemService service, IQueryable <ContentChannelItem> itemQry)
{
var contentChannelId = GetAttributeValue(AttributeKeys.ContentChannel).AsInteger();
var itemType = typeof(Rock.Model.ContentChannelItem);
var paramExpression = service.ParameterExpression;
//
// Apply Data Filter.
//
int?dataFilterId = GetAttributeValue(AttributeKeys.FilterId).AsIntegerOrNull();
if (dataFilterId.HasValue)
{
var dataFilterService = new DataViewFilterService(rockContext);
var dataFilter = dataFilterService.Queryable("ChildFilters").FirstOrDefault(a => a.Id == dataFilterId.Value);
var errorMessages = new List <string>();
Expression whereExpression = dataFilter?.GetExpression(itemType, service, paramExpression, errorMessages);
itemQry = itemQry.Where(paramExpression, whereExpression, null);
}
//
// Apply page parameter filtering.
//
var pageParameters = RequestContext.GetPageParameters();
if (GetAttributeValue(AttributeKeys.QueryParameterFiltering).AsBoolean() && pageParameters.Count > 0)
{
var propertyFilter = new Rock.Reporting.DataFilter.PropertyFilter();
foreach (var kvp in pageParameters)
{
var selection = new List <string>();
// Since there could be many matches by the key name for an attribute we have to construct the unique name used by EntityHelper.FindFromFilterSelection and use that
var attributeService = new AttributeService(rockContext);
var attributeGuid = attributeService
.Queryable()
.Where(a => a.EntityTypeQualifierColumn == "ContentChannelId")
.Where(a => a.EntityTypeQualifierValue == contentChannelId.ToString())
.Where(a => a.Key == kvp.Key)
.Select(a => a.Guid)
.FirstOrDefault();
string uniqueName = kvp.Key;
if (attributeGuid != null)
{
uniqueName = string.Format("Attribute_{0}_{1}", kvp.Key, attributeGuid.ToString().Replace("-", string.Empty));
}
// Keep using uniquename for attributes since common keys (e.g. "category")will return mutliple values
selection.Add(uniqueName);
var entityField = Rock.Reporting.EntityHelper.FindFromFilterSelection(itemType, uniqueName, false, false);
if (entityField != null)
{
string value = kvp.Value;
switch (entityField.FieldType.Guid.ToString().ToUpper())
{
case Rock.SystemGuid.FieldType.DAY_OF_WEEK:
case Rock.SystemGuid.FieldType.SINGLE_SELECT:
{
selection.Add(value);
}
break;
case Rock.SystemGuid.FieldType.MULTI_SELECT:
{
selection.Add(ComparisonType.Contains.ConvertToInt().ToString());
selection.Add(value);
}
break;
default:
{
selection.Add(ComparisonType.EqualTo.ConvertToInt().ToString());
selection.Add(value);
}
break;
}
itemQry = itemQry.Where(paramExpression, propertyFilter.GetExpression(itemType, service, paramExpression, selection.ToJson()));
}
}
}
return(itemQry);
}
private List<ContentChannelItem> GetContent( List<string> errorMessages )
{
var items = GetCacheItem( CONTENT_CACHE_KEY ) as List<ContentChannelItem>;
bool queryParameterFiltering = GetAttributeValue( "QueryParameterFiltering" ).AsBoolean( false );
if ( items == null || ( queryParameterFiltering && Request.QueryString.Count > 0 ) )
{
Guid? channelGuid = GetAttributeValue( "Channel" ).AsGuidOrNull();
if ( channelGuid.HasValue )
{
var rockContext = new RockContext();
var service = new ContentChannelItemService( rockContext );
var itemType = typeof( Rock.Model.ContentChannelItem );
ParameterExpression paramExpression = service.ParameterExpression;
var contentChannel = new ContentChannelService( rockContext ).Get( channelGuid.Value );
if ( contentChannel != null )
{
var entityFields = HackEntityFields( contentChannel, rockContext );
if ( items == null )
{
items = new List<ContentChannelItem>();
var qry = service.Queryable( "ContentChannel,ContentChannelType" );
int? itemId = PageParameter( "Item" ).AsIntegerOrNull();
if ( queryParameterFiltering && itemId.HasValue )
{
qry = qry.Where( i => i.Id == itemId.Value );
}
else
{
qry = qry.Where( i => i.ContentChannelId == contentChannel.Id );
if ( contentChannel.RequiresApproval )
{
// Check for the configured status and limit query to those
var statuses = new List<ContentChannelItemStatus>();
foreach ( string statusVal in ( GetAttributeValue( "Status" ) ?? "2" ).Split( new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries ) )
{
var status = statusVal.ConvertToEnumOrNull<ContentChannelItemStatus>();
if ( status != null )
{
statuses.Add( status.Value );
}
}
if ( statuses.Any() )
{
qry = qry.Where( i => statuses.Contains( i.Status ) );
}
}
int? dataFilterId = GetAttributeValue( "FilterId" ).AsIntegerOrNull();
if ( dataFilterId.HasValue )
{
var dataFilterService = new DataViewFilterService( rockContext );
var dataFilter = dataFilterService.Queryable( "ChildFilters" ).FirstOrDefault( a => a.Id == dataFilterId.Value );
Expression whereExpression = dataFilter != null ? dataFilter.GetExpression( itemType, service, paramExpression, errorMessages ) : null;
qry = qry.Where( paramExpression, whereExpression, null );
}
}
// All filtering has been added, now run query and load attributes
foreach ( var item in qry.ToList() )
{
item.LoadAttributes( rockContext );
items.Add( item );
}
// Order the items
SortProperty sortProperty = null;
string orderBy = GetAttributeValue( "Order" );
if ( !string.IsNullOrWhiteSpace( orderBy ) )
{
var fieldDirection = new List<string>();
foreach ( var itemPair in orderBy.Split( new char[] { '|' }, StringSplitOptions.RemoveEmptyEntries ).Select( a => a.Split( '^' ) ) )
{
if ( itemPair.Length == 2 && !string.IsNullOrWhiteSpace( itemPair[0] ) )
{
var sortDirection = SortDirection.Ascending;
if ( !string.IsNullOrWhiteSpace( itemPair[1] ) )
{
sortDirection = itemPair[1].ConvertToEnum<SortDirection>( SortDirection.Ascending );
}
fieldDirection.Add( itemPair[0] + ( sortDirection == SortDirection.Descending ? " desc" : "" ) );
}
}
sortProperty = new SortProperty();
sortProperty.Direction = SortDirection.Ascending;
sortProperty.Property = fieldDirection.AsDelimited( "," );
string[] columns = sortProperty.Property.Split( new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries );
var itemQry = items.AsQueryable();
IOrderedQueryable<ContentChannelItem> orderedQry = null;
for ( int columnIndex = 0; columnIndex < columns.Length; columnIndex++ )
{
string column = columns[columnIndex].Trim();
var direction = sortProperty.Direction;
if ( column.ToLower().EndsWith( " desc" ) )
{
column = column.Left( column.Length - 5 );
direction = sortProperty.Direction == SortDirection.Ascending ? SortDirection.Descending : SortDirection.Ascending;
}
try
{
if ( column.StartsWith( "Attribute:" ) )
{
string attributeKey = column.Substring( 10 );
if ( direction == SortDirection.Ascending )
{
orderedQry = ( columnIndex == 0 ) ?
itemQry.OrderBy( i => i.AttributeValues.Where( v => v.Key == attributeKey ).FirstOrDefault().Value.SortValue ) :
orderedQry.ThenBy( i => i.AttributeValues.Where( v => v.Key == attributeKey ).FirstOrDefault().Value.SortValue );
}
else
{
orderedQry = ( columnIndex == 0 ) ?
itemQry.OrderByDescending( i => i.AttributeValues.Where( v => v.Key == attributeKey ).FirstOrDefault().Value.SortValue ) :
orderedQry.ThenByDescending( i => i.AttributeValues.Where( v => v.Key == attributeKey ).FirstOrDefault().Value.SortValue );
}
}
else
{
if ( direction == SortDirection.Ascending )
{
orderedQry = ( columnIndex == 0 ) ? itemQry.OrderBy( column ) : orderedQry.ThenBy( column );
}
else
{
orderedQry = ( columnIndex == 0 ) ? itemQry.OrderByDescending( column ) : orderedQry.ThenByDescending( column );
}
}
}
catch { }
}
try
{
if ( orderedQry != null )
{
items = orderedQry.ToList();
}
}
catch { }
}
int? cacheDuration = GetAttributeValue( "CacheDuration" ).AsInteger();
if ( cacheDuration > 0 )
{
var cacheItemPolicy = new CacheItemPolicy { AbsoluteExpiration = DateTimeOffset.Now.AddSeconds( cacheDuration.Value ) };
AddCacheItem( CONTENT_CACHE_KEY, items, cacheItemPolicy );
}
}
// If items could be filtered by querystring values, check for filters
if ( queryParameterFiltering )
{
var pageParameters = PageParameters();
if ( pageParameters.Count > 0 )
{
var propertyFilter = new Rock.Reporting.DataFilter.PropertyFilter();
var itemQry = items.AsQueryable();
foreach ( string key in PageParameters().Select( p => p.Key ).ToList() )
{
var selection = new List<string>();
selection.Add( key );
var entityField = entityFields.FirstOrDefault( f => f.Name.Equals( key, StringComparison.OrdinalIgnoreCase ) );
if ( entityField != null )
{
string value = PageParameter( key );
switch ( entityField.FieldType.Guid.ToString().ToUpper() )
{
case Rock.SystemGuid.FieldType.DAY_OF_WEEK:
case Rock.SystemGuid.FieldType.SINGLE_SELECT:
{
selection.Add( value );
}
break;
case Rock.SystemGuid.FieldType.MULTI_SELECT:
{
selection.Add( ComparisonType.Contains.ConvertToInt().ToString() );
selection.Add( value );
}
break;
default:
{
selection.Add( ComparisonType.EqualTo.ConvertToInt().ToString() );
selection.Add( value );
}
break;
}
itemQry = itemQry.Where( paramExpression, propertyFilter.GetExpression( itemType, service, paramExpression, Newtonsoft.Json.JsonConvert.SerializeObject( selection ) ) );
}
}
items = itemQry.ToList();
}
}
}
}
}
return items;
}