001    /**
002     * Implements the Cold Fusion Function valuelist
003     */
004    package railo.runtime.functions.query;
005    
006    import railo.runtime.PageContext;
007    import railo.runtime.PageContextImpl;
008    import railo.runtime.exp.ExpressionException;
009    import railo.runtime.exp.PageException;
010    import railo.runtime.ext.function.Function;
011    import railo.runtime.op.Caster;
012    import railo.runtime.type.Query;
013    import railo.runtime.type.QueryColumn;
014    import railo.runtime.type.Scope;
015    import railo.runtime.type.ref.VariableReference;
016    
017    public class ValueList implements Function {
018            public static String call(PageContext pc , String strQueryColumn) throws PageException {
019                    return call(pc,strQueryColumn,",");
020            }
021            public static String call(PageContext pc , String strQueryColumn, String delimeter) throws PageException {
022                
023                
024                QueryColumn column =toColumn(pc,strQueryColumn);
025                    StringBuffer sb=new StringBuffer();
026                    int size=column.size();
027                    for(int i=1;i<=size;i++) {
028                            if(i>1)sb.append(delimeter);
029                            sb.append(Caster.toString(column.get(i)));
030                    }
031                    return sb.toString();           
032            }
033            
034            protected static QueryColumn toColumn(PageContext pc,String strQueryColumn) throws PageException {
035                //if(strQueryColumn.indexOf('.')<1)
036                //    throw new ExpressionException("invalid query column definition ["+strQueryColumn+"]");
037                    VariableReference ref = ((PageContextImpl)pc).getVariableReference(strQueryColumn);
038                    if(ref.getParent() instanceof Scope)
039                        throw new ExpressionException("invalid query column definition ["+strQueryColumn+"]");
040                    
041                    
042                    Query query=Caster.toQuery(ref.getParent());
043                    return query.getColumn(ref.getKey());
044            }
045    }