gistfile1.php

<?php
private static function sortAlbumsByBestSelling($genreIds, $excludeIds = array(),
                                                   $perPage, $pageNum, $priceFilter=null){
    	$sources = array(new Amie_ListGen_Source_DbAlbumSales(),
                         new Amie_ListGen_Source_DbAlbumSales());
        foreach ($sources as $source) {
            self::addGenreFilter($genreIds, $source);
            self::addPriceFilter($priceFilter, $source);
            $source->filterExcludeAlbums($excludeIds);
        }

        $sources[0]->setWikiFilter('only');
        $sources[1]->setWikiFilter('not');

        $s = new Amie_ListGen_Source_Concat($sources);
        return $s->getPage($perPage, $pageNum);
    }
    
    private static function sortAlbumsByCommunityBuzz($genreIds, $excludeIds = array(),
                                                   $perPage, $pageNum, $priceFilter=null){
    	$source = new Amie_ListGen_Source_DbAlbum;
        $source->orderByAmieIndexDesc();
        $source->filterExcludeAlbums($excludeIds);
        self::addGenreFilter($genreIds, $source);
        self::addPriceFilter($priceFilter, $source);
        return $source->getPage($perPage, $pageNum);
    }
    
    private static function sortAlbumsByRecency($genreIds, $excludeIds = array(),
                                                   $perPage, $pageNum, $priceFilter=null){
    	$source = new Amie_ListGen_Source_DbAlbum;
        self::addGenreFilter($genreIds, $source);
        self::addPriceFilter($priceFilter, $source);
        $source->filterExcludeAlbums($excludeIds);
        $source->orderByReleaseDateDesc();
        return $source->getPage($perPage, $pageNum);
    }
    
    private static function addGenreFilter($genreIds, $source) {
        if ($genreIds != null) {
            if (isset($genreIds[0]) && is_array($genreIds[0])) {
                foreach ($genreIds as $idList) {
                    $source->filterOnlyGenres($idList);
                }
            } else {
                $source->filterOnlyGenres($genreIds);
            }
        }
    }

    private static function addPriceFilter($priceFilter, $source) {
        if(!is_null($priceFilter)){
            if($priceFilter=='priced'){
                $source->filterMinPrice('0.01');
            }
            elseif($priceFilter=='free'){
                $source->filterMaxPrice('0');
            }
        }
    }
?>