/// <summary>
/// Gets the expression.
/// </summary>
/// <param name="entityType">Type of the entity.</param>
/// <param name="serviceInstance">The service instance.</param>
/// <param name="parameterExpression">The parameter expression.</param>
/// <param name="selection">The selection.</param>
/// <returns></returns>
public override Expression GetExpression( Type entityType, IService serviceInstance, ParameterExpression parameterExpression, string selection )
{
string[] selectionValues = selection.Split( '|' );
if ( selectionValues.Length >= 2 )
{
Guid tagGuid = selectionValues[1].AsGuid();
var tagItemQry = new TaggedItemService( (RockContext)serviceInstance.Context ).Queryable()
.Where( x => x.Tag.Guid == tagGuid );
var qry = new PersonService( (RockContext)serviceInstance.Context ).Queryable()
.Where( p => tagItemQry.Any( x => x.EntityGuid == p.Guid ) );
return FilterExpressionExtractor.Extract<Rock.Model.Person>( qry, parameterExpression, "p" );
}
return null;
}
