Sql_Compiler/Sql_CompilerUnion.class.php - SQL Parse and Compile

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Sql_Compiler/Sql_CompilerUnion.class.php

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Description:

compile union statement

Class:

SQL Parse and Compile
Parse and compose SQL queries programatically

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<?php



/**

 *

 * Sql_CompilerUnion

 * @package Sql

 * @subpackage Sql_Parser

 * @author Thomas Schäfer

 * @since 12.12.2008

 * @desc compile a sql Union object into string

 */

/**

 *

 * Sql_CompilerUnion

 * @package Sql

 * @subpackage Sql_Parser

 * @author Thomas Schäfer

 * @since 12.12.2008

 * @desc compile a sql Union object into string

 */



class Sql_CompilerUnion implements Sql_InterfaceCompiler 

{



    public static function doCompile() 

    {

        $tree = Sql_Object::get("tree");

        $array = array();

        foreach(Sql_Object::get("tree.Union") as $index => $statement) {

            $compose = new Sql_Compiler();

            $array[] = $compose->compile($statement);

        }

        return implode(Sql_Compiler::LINEBREAK . strtoupper($tree["Command"]). Sql_Compiler::LINEBREAK, $array);

        

    }

    

    public static function compile($tree)

    {

        Sql_Object::set("tree", $tree);

        return self::doCompile();

    }



}

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File: Sql_Compiler/Sql_CompilerUnion.class.php

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