Trait flavored sqlbuilder (experiment)

TraitFlavoredSqlBuilder.php

<?php
/**
 * @author Marco Bunge
 * @copyright 2012 Marco Bunge <efika@rubymatrix.de>
 */

abstract class AbstractSqlCommand {
    
    public function build(){
        return implode(' ', $this->getCommandElements());
    }

}

class SelectCommand extends AbstractSqlCommand {
    /**
     * Delivers method where
     */
    use WhereClause;

    public function __construct($table, array $fields){
        $this->set('fields',$fields);
        $this->set('table',$table);
        
        $cmd[] = 'SELECT';
        $cmd[] = $table;
        $cmd[] = 'FROM';
        $cmd[] = implode(',',$fields);
        
        $this->addCommandElement(implode(' ',$cmd));
    }
}

/**
 * Where clause trait
 */
trait WhereClause {
    public function where(array $conditions, $defaultOperator){
        //build conditions
    }
}