Skeleton.php

<?php
class ZendDbSchema_Db_Migration_Skeleton
{
    protected $_adapter;

    protected $_version;

    protected $_class;

    public function __construct(Zend_CodeGenerator_Php_Class $class = null)
    {
        if (!$class) {
            $class = new Zend_CodeGenerator_Php_Class();
        }
        $class->setExtendedClass('ZendDbSchema_Db_Migration_Change');

        $this->_class = $class;
    }

    public function setMethodUp($body = '// rollup')
    {
        $up = new Zend_CodeGenerator_Php_Method();
        $up->setName('up')->setBody($body);

        $this->_class->setMethod($up);
    }

    public function setMethodDown($body = '// rolldown')
    {
        $down = new Zend_CodeGenerator_Php_Method();
        $down->setName('down')->setBody($body);

        $this->_class->setMethod($down);
    }

    public function addSchema(array $tablesList = array(), array $databasesList = array())
    {
        if (empty($databasesList)) {
            $config = $this->getAdapter()->getConfig();
            $databasesList[] = $config['dbname'];
        }
        $databasesConfig = array();
        foreach ($databasesList as $database) {
            $schema = new ZendDbSchema_Db_Schema_Database($database);
            $databasesConfig[$database] = $schema->toArray();
        }

        $databases = new Zend_CodeGenerator_Php_Property();
        $databases->setName('_databasesConfig')
                  ->setVisibility(Zend_CodeGenerator_Php_Property::VISIBILITY_PROTECTED)
                  ->setDefaultValue($databasesConfig)
                  ->setDocBlock("Databases configuration \n@var array");

        $this->_class->setProperty($databases);

        if (!empty($tablesList)) {
            $tablesList = array_intersect(
                    $this->getAdapter()->listTables(),
                    $tablesList
            );
        } else {
            $tablesList = $this->getAdapter()->listTables();
        }

        $tablesConfig = array();
        foreach ($tablesList as $table) {
            $schema = new ZendDbSchema_Db_Schema_Table($table);
            $tablesConfig[$table] = $schema->toArray();
        }
        $tables = new Zend_CodeGenerator_Php_Property();
        $tables->setName('_tablesConfig')
               ->setVisibility(Zend_CodeGenerator_Php_Property::VISIBILITY_PROTECTED)
               ->setDefaultValue($tablesConfig)
               ->setDocBlock("Tables configuration \n@var array");

        $this->_class->setProperty($tables);
    }

    public function setVersion($version)
    {
        $this->_version = rtrim($version, '.php');

        $this->getClass()->setName(self::getClassName($version));

        return $this;
    }

    public function getVersion()
    {
        if (!$this->_version) {
            $this->setVersion(self::generateVersion());
        }
        return $this->_version;
    }

    public function getFile()
    {
        $file = new Zend_CodeGenerator_Php_File();
        $file->setClass($this->getClass());
        $file->setFilename(self::getFilename($this->getVersion()));

        return $file;
    }

    public function write()
    {
        $this->getFile()->write();

        return $this;
    }

    public function getClass()
    {
        return $this->_class;
    }

    public function getAdapter()
    {
        if (!$this->_adapter) {
            $adapter = ZendDbSchema_Db_Schema_AbstractEntity::getDefaultAdapter();
            $this->setAdapter($adapter);
        }
        return $this->_adapter;
    }

    public function setAdapter(ZendDbSchema_Db_Adapter_SchemaCompatible $adapter)
    {
        $this->_adapter = $adapter;
        return $this;
    }

    public static function getClassName($version)
    {
        return 'Migration_' . basename($version, '.php');
    }

    public static function generateVersion()
    {
        list($sec, $msec) = explode(".", microtime(true));
        return date('Ymd_His_') . substr($msec, 0, 2);
    }

    public static function getFilename($version)
    {
        return $version . '.php';
    }
}