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<?php

/**

 * Generation tools for DB_DataObject

 *

 * PHP versions 4 and 5

 *

 * LICENSE: This source file is subject to version 3.0 of the PHP license

 * that is available through the world-wide-web at the following URI:

 * http://www.php.net/license/3_0.txt.  If you did not receive a copy of

 * the PHP License and are unable to obtain it through the web, please

 * send a note to license@php.net so we can mail you a copy immediately.

 *

 * @category   Database

 * @package    DB_DataObject

 * @author     Alan Knowles <alan@akbkhome.com>

 * @copyright  1997-2005 The PHP Group

 * @license    http://www.php.net/license/3_0.txt  PHP License 3.0

 * @version    CVS: $Id: Generator.php,v 1.96 2005/06/16 02:03:45 alan_k Exp $

 * @link       http://pear.php.net/package/DB_DataObject

 */

/**

 *

 * Config _$ptions

 * [DB_DataObject_Generator]

 * ; optional default = DB/DataObject.php

 * extends_location =

 * ; optional default = DB_DataObject

 * extends =

 * ; alter the extends field when updating a class (defaults to only replacing DB_DataObject)

 * generator_class_rewrite = ANY|specific_name   // default is DB_DataObject

 *

 */

/**

 * Needed classes

 */

require_once 'DB/DataObject.php';

//require_once('Config.php');

/**

 * Generator class

 *

 * @package DB_DataObject

 */

class DB_DataObject_Generator extends DB_DataObject

{

    /* =========================================================== */

    /*  Utility functions - for building db config files           */

    /* =========================================================== */

    /**

     * Array of table names

     *

     * @var array

     * @access private

     */

    var $tables;

    /**

     * associative array table -> array of table row objects

     *

     * @var array

     * @access private

     */

    var $_definitions;

    /**

     * active table being output

     *

     * @var string

     * @access private

     */

    var $table; // active tablename

    /**

     * The 'starter' = call this to start the process

     *

     * @access  public

     * @return  none

     */

    function start()

    {

        $options = &PEAR::getStaticProperty('DB_DataObject','options');

        $databases = array();

        foreach($options as $k=>$v) {

            if (substr($k,0,9) == 'database_') {

                $databases[substr($k,9)] = $v;

            }

        }

        if (@$options['database']) {

            require_once 'DB.php';

            $dsn = DB::parseDSN($options['database']);

            if (!isset($database[$dsn['database']])) {

                $databases[$dsn['database']] = $options['database'];

            }

        }

        foreach($databases as $databasename => $database) {

            if (!$database) {

                continue;

            }

            $this->debug("CREATING FOR $databasename\n");

            $class = get_class($this);

            $t = new $class;

            $t->_database_dsn = $database;

            $t->_database = $databasename;

            $dsn = DB::parseDSN($database);

            if (($dsn['phptype'] == 'sqlite') && is_file($databasename)) {

                $t->_database = basename($t->_database);

            }

            $t->_createTableList();

            foreach(get_class_methods($class) as $method) {

                if (substr($method,0,8 ) != 'generate') {

                    continue;

                }

                $this->debug("calling $method");

                $t->$method();

            }

        }

        $this->debug("DONE\n\n");

    }

    /**

     * Output File was config object, now just string

     * Used to generate the Tables

     *

     * @var    string outputbuffer for table definitions

     * @access private

     */

    var $_newConfig;

    /**

     * Build a list of tables;

     * Currently this is very Mysql Specific - ideas for more generic stiff welcome

     *

     * @access  private

     * @return  none

     */

    function _createTableList()

    {

        $this->_connect();

        $options = &PEAR::getStaticProperty('DB_DataObject','options');

        $__DB= &$GLOBALS['_DB_DATAOBJECT']['CONNECTIONS'][$this->_database_dsn_md5];

        // try getting a list of schema tables first. (postgres)

        $__DB->expectError(DB_ERROR_UNSUPPORTED);

        $this->tables = $__DB->getListOf('schema.tables');

        $__DB->popExpect();

        if (empty($this->tables) || is_a($this->tables , 'PEAR_Error')) {

            //if that fails fall back to clasic tables list.

            $this->tables = $__DB->getListOf('tables');

        }

        if (is_a($this->tables , 'PEAR_Error')) {

            return PEAR::raiseError($this->tables->toString(), null, PEAR_ERROR_DIE);

        }

        // build views as well if asked to.

        if (!empty($options['build_views'])) {

            $views = $__DB->getListOf('views');

            if (is_a($views,'PEAR_Error')) {

                return PEAR::raiseError(

                    'Error getting Views (check the PEAR bug database for the fix to DB), ' .

                    $views->toString(),

                    null,

                    PEAR_ERROR_DIE

                );

            }

            $this->tables = array_merge ($this->tables, $views);

        }

        // declare a temporary table to be filled with matching tables names

        $tmp_table = array();

        foreach($this->tables as $table) {

            if (isset($options['generator_include_regex']) &&

                !preg_match($options['generator_include_regex'],$table)) {

                    continue;

            } else if (isset($options['generator_exclude_regex']) &&

                preg_match($options['generator_exclude_regex'],$table)) {

                    continue;

            }

                // postgres strip the schema bit from the

            if (!empty($options['generator_strip_schema'])) {

                $bits = explode('.', $table,2);

                $table = $bits[0];

                if (count($bits) > 1) {

                    $table = $bits[1];

                }

            }

            $defs =  $__DB->tableInfo($table);

            if (is_a($defs,'PEAR_Error')) {

                echo $defs->toString();

                exit;

            }

            // cast all definitions to objects - as we deal with that better.

            foreach($defs as $def) {

                if (!is_array($def)) {

                    continue;

                }

                $this->_definitions[$table][] = (object) $def;

            }

            // we find a matching table, just  store it into a temporary array

            $tmp_table[] = $table;

        }

        // the temporary table array is now the right one (tables names matching

        // with regex expressions have been removed)

        $this->tables = $tmp_table;

        //print_r($this->_definitions);

    }

    /**

     * Auto generation of table data.

     *

     * it will output to db_oo_{database} the table definitions

     *

     * @access  private

     * @return  none

     */

    function generateDefinitions()

    {

        $this->debug("Generating Definitions file:        ");

        if (!$this->tables) {

            $this->debug("-- NO TABLES -- \n");

            return;

        }

        $options = &PEAR::getStaticProperty('DB_DataObject','options');

        //$this->_newConfig = new Config('IniFile');

        $this->_newConfig = '';

        foreach($this->tables as $this->table) {

            $this->_generateDefinitionsTable();

        }

        $this->_connect();

        // dont generate a schema if location is not set

        // it's created on the fly!

        if (!@$options['schema_location'] && @!$options["ini_{$this->_database}"] ) {

            return;

        }

        $base =  @$options['schema_location'];

        if (isset($options["ini_{$this->_database}"])) {

            $file = $options["ini_{$this->_database}"];

        } else {

            $file = "{$base}/{$this->_database}.ini";

        }

        if (!file_exists(dirname($file))) {

            require_once 'System.php';

            System::mkdir(array('-p','-m',0755,dirname($file)));

        }

        $this->debug("Writing ini as {$file}\n");

        touch($file);

        //print_r($this->_newConfig);

        $fh = fopen($file,'w');

        fwrite($fh,$this->_newConfig);

        fclose($fh);

        //$ret = $this->_newConfig->writeInput($file,false);

        //if (PEAR::isError($ret) ) {

        //    return PEAR::raiseError($ret->message,null,PEAR_ERROR_DIE);

        // }

    }

    /**

     * The table geneation part

     *

     * @access  private

     * @return  tabledef and keys array.

     */

    function _generateDefinitionsTable()

    {

        global $_DB_DATAOBJECT;

        $defs = $this->_definitions[$this->table];

        $this->_newConfig .= "\n[{$this->table}]\n";

        $keys_out =  "\n[{$this->table}__keys]\n";

        $keys_out_primary = '';

        $keys_out_secondary = '';

        if (@$_DB_DATAOBJECT['CONFIG']['debug'] > 2) {

            echo "TABLE STRUCTURE FOR {$this->table}\n";

            print_r($defs);

        }

        $DB = $this->getDatabaseConnection();

        $dbtype = $DB->phptype;

        $ret = array(

                'table' => array(),

                'keys' => array(),

            );

        $ret_keys_primary = array();

        $ret_keys_secondary = array();

        foreach($defs as $t) {

            $n=0;

            switch (strtoupper($t->type)) {

                case 'INT':

                case 'INT2':    // postgres

                case 'INT4':    // postgres

                case 'INT8':    // postgres

                case 'SERIAL4': // postgres

                case 'SERIAL8': // postgres

                case 'INTEGER':

                case 'TINYINT':

                case 'SMALLINT':

                case 'MEDIUMINT':

                case 'BIGINT':

                    $type = DB_DATAOBJECT_INT;

                    if ($t->len == 1) {

                        $type +=  DB_DATAOBJECT_BOOL;

                    }

                    break;

                case 'REAL':

                case 'DOUBLE':

                case 'FLOAT':

                case 'FLOAT8': // double precision (postgres)

                case 'DECIMAL':

                case 'NUMERIC':

                case 'NUMBER': // oci8

                    $type = DB_DATAOBJECT_INT; // should really by FLOAT!!! / MONEY...

                    break;

                case 'YEAR':

                    $type = DB_DATAOBJECT_INT;

                    break;

                case 'BIT':

                case 'BOOL':

                case 'BOOLEAN':

                    $type = DB_DATAOBJECT_BOOL;

                    // postgres needs to quote '0'

                    if ($dbtype == 'pgsql') {

                        $type +=  DB_DATAOBJECT_STR;

                    }

                    break;

                case 'STRING':

                case 'CHAR':

                case 'VARCHAR':

                case 'VARCHAR2':

                case 'TINYTEXT':

                case 'ENUM':

                case 'SET':         // not really but oh well

                case 'TIMESTAMPTZ': // postgres

                case 'BPCHAR':      // postgres

                case 'INTERVAL':    // postgres (eg. '12 days')

                case 'CIDR':        // postgres IP net spec

                case 'INET':        // postgres IP

                case 'MACADDR':     // postgress network Mac address.

                    $type = DB_DATAOBJECT_STR;

                    break;

                case 'TEXT':

                case 'MEDIUMTEXT':

                case 'LONGTEXT':

                    $type = DB_DATAOBJECT_STR + DB_DATAOBJECT_TXT;

                    break;

                case 'DATE':

                    $type = DB_DATAOBJECT_STR + DB_DATAOBJECT_DATE;

                    break;

                case 'TIME':

                    $type = DB_DATAOBJECT_STR + DB_DATAOBJECT_TIME;

                    break;

                case 'DATETIME':

                    $type = DB_DATAOBJECT_STR + DB_DATAOBJECT_DATE + DB_DATAOBJECT_TIME;

                    break;

                case 'TIMESTAMP': // do other databases use this???

                    $type = ($dbtype == 'mysql') ?

                        DB_DATAOBJECT_MYSQLTIMESTAMP :

                        DB_DATAOBJECT_STR + DB_DATAOBJECT_DATE + DB_DATAOBJECT_TIME;

                    break;

                case 'TINYBLOB':

                case 'BLOB':       /// these should really be ignored!!!???

                case 'MEDIUMBLOB':

                case 'LONGBLOB':

                case 'BYTEA':   // postgres blob support..

                    $type = DB_DATAOBJECT_STR + DB_DATAOBJECT_BLOB;

                    break;

            }

            if (!strlen(trim($t->name))) {

                continue;

            }

            if (preg_match('/not_null/i',$t->flags)) {

                $type += DB_DATAOBJECT_NOTNULL;

            }

            $write_ini = true;

            if (in_array($t->name,array('null','yes','no','true','false'))) {

                echo "*****************************************************************\n".

                     "**                             WARNING                         **\n".

                     "** Found column '{$t->name}', which is invalid in an .ini file **\n".

                     "** This line will not be writen to the file - you will have    **\n".

                     "** define the keys()/method manually.                          **\n".

                     "*****************************************************************\n";

                $write_ini = false;

            } else {

                $this->_newConfig .= "{$t->name} = $type\n";

            }

            $ret['table'][$t->name] = $type;

            // i've no idea if this will work well on other databases?

            // only use primary key or nextval(), cause the setFrom blocks you setting all key items...

            // if no keys exist fall back to using unique

            //echo "\n{$t->name} => {$t->flags}\n";

            if (preg_match("/(auto_increment|nextval\()/i",rawurldecode($t->flags))) {

                // native sequences = 2

                if ($write_ini) {

                    $keys_out_primary .= "{$t->name} = N\n";

                }

                $ret_keys_primary[$t->name] = 'N';

            } else if (preg_match("/(primary|unique)/i",$t->flags)) {

                // keys.. = 1

                if ($write_ini) {

                    $keys_out_secondary .= "{$t->name} = K\n";

                }

                $ret_keys_secondary[$t->name] = 'K';

            }

        }

        $this->_newConfig .= $keys_out . (empty($keys_out_primary) ? $keys_out_secondary : $keys_out_primary);

        $ret['keys'] = empty($keys_out_primary) ? $ret_keys_secondary : $ret_keys_primary;

        if (@$_DB_DATAOBJECT['CONFIG']['debug'] > 2) {

            print_r(array("dump for {$this->table}", $ret));

        }

        return $ret;

    }

    /*

     * building the class files

     * for each of the tables output a file!

     */

    function generateClasses()

    {

        //echo "Generating Class files:        \n";

        $options = &PEAR::getStaticProperty('DB_DataObject','options');

        $base = $options['class_location'];

        if (strpos($base,'%s') !== false) {

            $base = dirname($base);

        }

        if (!file_exists($base)) {

            require_once 'System.php';

            System::mkdir(array('-p',$base));

        }

        $class_prefix  = $options['class_prefix'];

        if ($extends = @$options['extends']) {

            $this->_extends = $extends;

            $this->_extendsFile = $options['extends_location'];

        }

        foreach($this->tables as $this->table) {

            $this->table = trim($this->table);

            $this->classname = $class_prefix.preg_replace('/[^A-Z0-9]/i','_',ucfirst($this->table));

            $i = '';

            if (strpos($options['class_location'],'%s') !== false) {

                $outfilename   = sprintf($options['class_location'], preg_replace('/[^A-Z0-9]/i','_',ucfirst($this->table)));

            } else {

                $outfilename = "{$base}/".preg_replace('/[^A-Z0-9]/i','_',ucfirst($this->table)).".php";

            }

            $oldcontents = '';

            if (file_exists($outfilename)) {

                // file_get_contents???

                $oldcontents = implode('',file($outfilename));

            }

            $out = $this->_generateClassTable($oldcontents);

            $this->debug( "writing $this->classname\n");

            $fh = fopen($outfilename, "w");

            fputs($fh,$out);

            fclose($fh);

        }

        //echo $out;

    }

    /**

     * class being extended (can be overridden by [DB_DataObject_Generator] extends=xxxx

     *

     * @var    string

     * @access private

     */

    var $_extends = 'DB_DataObject';

    /**

     * line to use for require('DB/DataObject.php');

     *

     * @var    string

     * @access private

     */

    var $_extendsFile = "DB/DataObject.php";

    /**

     * class being generated

     *

     * @var    string

     * @access private

     */

    var $_className;

    /**

     * The table class geneation part - single file.

     *

     * @access  private

     * @return  none

     */

    function _generateClassTable($input = '')

    {

        // title = expand me!

        $foot = "";

        $head = "<?php\n/**\n * Table Definition for {$this->table}\n */\n";

        // requires

        $head .= "require_once '{$this->_extendsFile}';\n\n";

        // add dummy class header in...

        // class

        $head .= "class {$this->classname} extends {$this->_extends} \n{";

        $body =  "\n    ###START_AUTOCODE\n";

        $body .= "    /* the code below is auto generated do not remove the above tag */\n\n";

        // table

        $padding = (30 - strlen($this->table));

        if ($padding < 2) $padding =2;

        $p =  str_repeat(' ',$padding) ;

        $options = &PEAR::getStaticProperty('DB_DataObject','options');

        $var = (substr(phpversion(),0,1) > 4) ? 'public' : 'var';

        $body .= "    {$var} \$__table = '{$this->table}';  {$p}// table name\n";

        // if we are using the option database_{databasename} = dsn

        // then we should add var $_database = here

        // as database names may not always match..

        if (isset($options["database_{$this->_database}"])) {

            $body .= "    {$var} \$_database = '{$this->_database}';  {$p}// database name (used with database_{*} config)\n";

        }

        $var = (substr(phpversion(),0,1) > 4) ? 'public' : 'var';

        if (!empty($options['generator_novars'])) {

            $var = '//'.$var;

        }

        $defs = $this->_definitions[$this->table];

        // show nice information!

        $connections = array();

        $sets = array();

        foreach($defs as $t) {

            if (!strlen(trim($t->name))) {

                continue;

            }

            $padding = (30 - strlen($t->name));

            if ($padding < 2) $padding =2;

            $p =  str_repeat(' ',$padding) ;

            $body .="    {$var} \${$t->name};  {$p}// {$t->type}({$t->len})  {$t->flags}\n";

            // can not do set as PEAR::DB table info doesnt support it.

            //if (substr($t->Type,0,3) == "set")

            //    $sets[$t->Field] = "array".substr($t->Type,3);

            $body .= $this->derivedHookVar($t,$padding);

        }

        // THIS IS TOTALLY BORKED old FC creation

        // IT WILL BE REMOVED!!!!! in DataObjects 1.6

        // grep -r __clone * to find all it's uses

        // and replace them with $x = clone($y);

        // due to the change in the PHP5 clone design.

        if ( substr(phpversion(),0,1) < 5) {

            $body .= "\n";

            $body .= "    /* ZE2 compatibility trick*/\n";

            $body .= "    function __clone() { return \$this;}\n";

        }

        // simple creation tools ! (static stuff!)

        $body .= "\n";

        $body .= "    /* Static get */\n";

        $body .= "    function staticGet(\$k,\$v=NULL) { return DB_DataObject::staticGet('{$this->classname}',\$k,\$v); }\n";

        // generate getter and setter methods

        $body .= $this->_generateGetters($input);

        $body .= $this->_generateSetters($input);

        /*

        theoretically there is scope here to introduce 'list' methods

        based up 'xxxx_up' column!!! for heiracitcal trees..

        */

        // set methods

        //foreach ($sets as $k=>$v) {

        //    $kk = strtoupper($k);

        //    $body .="    function getSets{$k}() { return {$v}; }\n";

        //}

        $body .= $this->derivedHookFunctions();

        $body .= "\n    /* the code above is auto generated do not remove the tag below */";

        $body .= "\n    ###END_AUTOCODE\n";

        // stubs..

        if (!empty($options['generator_add_validate_stubs'])) {

            foreach($defs as $t) {

                if (!strlen(trim($t->name))) {

                    continue;

                }

                $validate_fname = 'validate' . ucfirst(strtolower($t->name));

                // dont re-add it..

                if (preg_match('/\s+function\s+' . $validate_fname . '\s*\(/i', $input)) {

                    continue;

                }

                $body .= "\n    function {$validate_fname}()\n    {\n        return false;\n    }\n";

            }

        }

        $foot .= "}\n";

        $full = $head . $body . $foot;

        if (!$input) {

            return $full;

        }

        if (!preg_match('/(\n|\r\n)\s*###START_AUTOCODE(\n|\r\n)/s',$input))  {

            return $full;

        }

        if (!preg_match('/(\n|\r\n)\s*###END_AUTOCODE(\n|\r\n)/s',$input)) {

            return $full;

        }

        /* this will only replace extends DB_DataObject by default,

            unless use set generator_class_rewrite to ANY or a name*/

        $class_rewrite = 'DB_DataObject';

        $options = &PEAR::getStaticProperty('DB_DataObject','options');

        if (!($class_rewrite = @$options['generator_class_rewrite'])) {

            $class_rewrite = 'DB_DataObject';

        }

        if ($class_rewrite == 'ANY') {

            $class_rewrite = '[a-z_]+';

        }

        $input = preg_replace(

            '/(\n|\r\n)class\s*[a-z0-9_]+\s*extends\s*' .$class_rewrite . '\s*\{(\n|\r\n)/si',

            "\nclass {$this->classname} extends {$this->_extends} \n{\n",

            $input);

        return preg_replace(

            '/(\n|\r\n)\s*###START_AUTOCODE(\n|\r\n).*(\n|\r\n)\s*###END_AUTOCODE(\n|\r\n)/s',

            $body,$input);

    }

    /**

     * hook to add extra methods to all classes

     *

     * called once for each class, use with $this->table and

     * $this->_definitions[$this->table], to get data out of the current table,

     * use it to add extra methods to the default classes.

     *

     * @access   public

     * @return  string added to class eg. functions.

     */

    function derivedHookFunctions()

    {

        // This is so derived generator classes can generate functions

        // It MUST NOT be changed here!!!

        return "";

    }

    /**

     * hook for var lines

     * called each time a var line is generated, override to add extra var

     * lines

     *

     * @param object t containing type,len,flags etc. from tableInfo call

     * @param int padding number of spaces

     * @access   public

     * @return  string added to class eg. functions.

     */

    function derivedHookVar(&$t,$padding)

    {

        // This is so derived generator classes can generate variabels

        // It MUST NOT be changed here!!!

        return "";

    }

    /**

    * getProxyFull - create a class definition on the fly and instantate it..

    *

    * similar to generated files - but also evals the class definitoin code.

    *

    *

    * @param   string database name

    * @param   string  table   name of table to create proxy for.

    *

    *

    * @return   object    Instance of class. or PEAR Error

    * @access   public

    */

    function getProxyFull($database,$table) {

        if ($err = $this->fillTableSchema($database,$table)) {

            return $err;

        }

        $options = &PEAR::getStaticProperty('DB_DataObject','options');

        $class_prefix  = $options['class_prefix'];

        if ($extends = @$options['extends']) {

            $this->_extends = $extends;

            $this->_extendsFile = $options['extends_location'];

        }

        $classname = $this->classname = $class_prefix.preg_replace('/[^A-Z0-9]/i','_',ucfirst(trim($this->table)));

        $out = $this->_generateClassTable();

        //echo $out;

        eval('?>'.$out);

        return new $classname;

    }

     /**

    * fillTableSchema - set the database schema on the fly

    *

    *

    *

    * @param   string database name

    * @param   string  table   name of table to create schema info for

    *

    * @return   none | PEAR::error()

    * @access   public

    */

    function fillTableSchema($database,$table) {

        global $_DB_DATAOBJECT;

        $this->_database  = $database;

        $this->_connect();

        $table = trim($table);

        $__DB= &$GLOBALS['_DB_DATAOBJECT']['CONNECTIONS'][$this->_database_dsn_md5];

        $defs =  $__DB->tableInfo($table);

        if (PEAR::isError($defs)) {

            return $defs;

        }

        if (@$_DB_DATAOBJECT['CONFIG']['debug'] > 2) {

            $this->debug("getting def for $database/$table",'fillTable');

            $this->debug(print_r($defs,true),'defs');

        }

        // cast all definitions to objects - as we deal with that better.

        foreach($defs as $def) {

            if (is_array($def)) {

                $this->_definitions[$table][] = (object) $def;

            }

        }

        $this->table = trim($table);

        $ret = $this->_generateDefinitionsTable();

        $_DB_DATAOBJECT['INI'][$database][$table] = $ret['table'];

        $_DB_DATAOBJECT['INI'][$database][$table.'__keys'] = $ret['keys'];

        return false;

    }

    /**

    * Generate getter methods for class definition

    *

    * @param    string  $input  Existing class contents

    * @return   string

    * @access   public

    */

    function _generateGetters($input) {

        $options = &PEAR::getStaticProperty('DB_DataObject','options');

        $getters = '';

        // only generate if option is set to true

        if  (empty($options['generate_getters'])) {

            return '';

        }

        // remove auto-generated code from input to be able to check if the method exists outside of the auto-code

        $input = preg_replace('/(\n|\r\n)\s*###START_AUTOCODE(\n|\r\n).*(\n|\r\n)\s*###END_AUTOCODE(\n|\r\n)/s', '', $input);

        $getters .= "\n\n";

        $defs     = $this->_definitions[$this->table];

        // loop through properties and create getter methods

        foreach ($defs = $defs as $t) {

            // build mehtod name

            $methodName = 'get' . ucfirst($t->name);

            if (!strlen(trim($t->name)) || preg_match("/function[\s]+[&]?$methodName\(/i", $input)) {

                continue;

            }

            $getters .= "   /**\n";

            $getters .= "    * Getter for \${$t->name}\n";

            $getters .= "    *\n";

            $getters .= (stristr($t->flags, 'multiple_key')) ? "    * @return   object\n"

                                                             : "    * @return   {$t->type}\n";

            $getters .= "    * @access   public\n";

            $getters .= "    */\n";

            $getters .= (substr(phpversion(),0,1) > 4) ? '    public '

                                                       : '    ';

            $getters .= "function $methodName() {\n";

            $getters .= "        return \$this->{$t->name};\n";

            $getters .= "    }\n\n";

        }

        return $getters;

    }

   /**

    * Generate setter methods for class definition

    *

    * @param    string  Existing class contents

    * @return   string

    * @access   public

    */

    function _generateSetters($input) {

        $options = &PEAR::getStaticProperty('DB_DataObject','options');

        $setters = '';

        // only generate if option is set to true

        if  (empty($options['generate_setters'])) {

            return '';

        }

        // remove auto-generated code from input to be able to check if the method exists outside of the auto-code

        $input = preg_replace('/(\n|\r\n)\s*###START_AUTOCODE(\n|\r\n).*(\n|\r\n)\s*###END_AUTOCODE(\n|\r\n)/s', '', $input);

        $setters .= "\n";

        $defs     = $this->_definitions[$this->table];

        // loop through properties and create setter methods

        foreach ($defs = $defs as $t) {

            // build mehtod name

            $methodName = 'set' . ucfirst($t->name);

            if (!strlen(trim($t->name)) || preg_match("/function[\s]+[&]?$methodName\(/i", $input)) {

                continue;

            }

            $setters .= "   /**\n";

            $setters .= "    * Setter for \${$t->name}\n";

            $setters .= "    *\n";

            $setters .= "    * @param    mixed   input value\n";

            $setters .= "    * @access   public\n";

            $setters .= "    */\n";

            $setters .= (substr(phpversion(),0,1) > 4) ? '    public '

                                                       : '    ';

            $setters .= "function $methodName(\$value) {\n";

            $setters .= "        \$this->{$t->name} = \$value;\n";

            $setters .= "    }\n\n";

        }

        return $setters;

    }

}