cakephp2-php8/cake/console/libs/schema.php
gwoo 84ff113d1d updating schema
git-svn-id: https://svn.cakephp.org/repo/branches/1.2.x.x@5571 3807eeeb-6ff5-0310-8944-8be069107fe0
2007-08-23 00:57:00 +00:00

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6.9 KiB
PHP

<?php
/* SVN FILE: $Id$ */
/**
* Command-line database management utility to automate programmer chores.
*
* Schema is CakePHP's database management utility. This helps you maintain versions of
* of your database.
*
* PHP versions 4 and 5
*
* CakePHP(tm) : Rapid Development Framework <http://www.cakephp.org/>
* Copyright 2005-2007, Cake Software Foundation, Inc.
* 1785 E. Sahara Avenue, Suite 490-204
* Las Vegas, Nevada 89104
*
* Licensed under The MIT License
* Redistributions of files must retain the above copyright notice.
*
* @filesource
* @copyright Copyright 2005-2007, Cake Software Foundation, Inc.
* @link http://www.cakefoundation.org/projects/info/cakephp CakePHP(tm) Project
* @package cake
* @subpackage cake.cake.console.libs
* @since CakePHP(tm) v 1.2.0.5550
* @version $Revision$
* @modifiedby $LastChangedBy$
* @lastmodified $Date$
* @license http://www.opensource.org/licenses/mit-license.php The MIT License
*/
uses('file', 'model' . DS . 'schema');
/**
* Schema is a command-line database management utility for automating programmer chores.
*
* @package cake
* @subpackage cake.cake.console.libs
*/
class SchemaShell extends Shell {
/**
* Override initialize
*
* @access public
* @return void
*/
function initialize() {
$this->out('Cake Schema Shell');
$this->hr();
}
/**
* Override startup
*
* @access public
* @return void
*/
function startup() {
$settings = am(array('path'=> CONFIGS .'sql'), $this->params);
$this->Schema =& new CakeSchema($settings);
}
/**
* Override main
*
* @access public
* @return void
*/
function main() {
$this->help();
}
/**
* Read and output contents od schema object
* path to read as second arg
*
* @access public
* @return void
*/
function view() {
$File = new File($this->Schema->path . DS .'schema.php');
if ($File->exists()) {
$this->out($File->read());
exit();
} else {
$this->err(__('Schema could not be found', true));
exit();
}
}
/**
* Read database and Write schema object
* accepts a connection as first arg or path to save as second arg
*
* @access public
* @return void
*/
function generate() {
$this->out('Generating Schema...');
$content = $this->Schema->read();
if ($this->Schema->write($content)) {
$this->out(__('Schema file created.', true));
exit();
} else {
$this->err(__('Schema could not be created', true));
exit();
}
}
/**
* Dump Schema object to sql file
* if first arg == write, file will be written to sql file
* or it will output sql
*
* @access public
* @return void
*/
function dump() {
$write = false;
$Schema = $this->Schema->load();
if (!empty($this->args[0])) {
if($this->args[0] == 'true') {
$write = Inflector::underscore($this->Schema->name);
} else {
$write = $this->args[0];
}
}
$db =& ConnectionManager::getDataSource($this->Schema->connection);
$contents = "#". $Schema->name ." sql generated on: " . date('Y-m-d H:m:s') . " : ". time()."\n\n";
$contents .= $db->dropSchema($Schema) . "\n\n". $db->createSchema($Schema);
if($write) {
if(strpos($write, '.sql') === false) {
$write .= '.sql';
}
$File = new File($this->Schema->path . DS . $write, true);
if($File->write($contents)) {
$this->out(__('SQL dump file created in '. $File->pwd(), true));
exit();
} else {
$this->err(__('SQL dump could not be created', true));
exit();
}
}
$this->out($contents);
return $contents;
}
/**
* Create database from Schema object
*
* @access public
* @return void
*/
function create() {
$Schema = $this->Schema->load();
$table = null;
$event = array_keys($Schema->tables);
if(isset($this->args[0])) {
$table = $this->args[0];
$event = array($table);
}
$errors = array();
$db =& ConnectionManager::getDataSource($this->Schema->connection);
$drop = $db->dropSchema($Schema, $table);
$this->out($drop);
if('y' == $this->in('Are you sure you want to drop tables and create your database?', array('y', 'n'), 'n')) {
$create = $db->createSchema($Schema, $table);
$this->out('Updating Database...');
$contents = array_map('trim', explode(";", $drop. $create));
foreach($contents as $sql) {
if(!empty($sql)) {
if(!$this->Schema->before(array('created'=> $event))) {
return false;
}
if (!$db->_execute($sql)) {
$errors[] = $db->lastError();
}
$this->Schema->after(array('created'=> $event, 'errors'=> $errors));
}
}
}
if(!empty($errors)) {
$this->err($errors);
exit();
}
$this->out(__('Database updated', true));
exit();
}
/**
* Update database with Schema object
*
* @access public
* @return void
*/
function update() {
$this->out('Comparing Database to Schema...');
$Old = $this->Schema->read();
$Schema = $this->Schema->load();
$compare = $this->Schema->compare($Old, $Schema);
$table = null;
if(isset($this->args[0])) {
$table = $this->args[0];
$compare = array($table => $compare[$table]);
}
$db =& ConnectionManager::getDataSource($this->Schema->connection);
$db->fullDebug = true;
Configure::write('debug', 2);
$contents = $db->alterSchema($compare, $table);
if(empty($contents)) {
$this->out(__('Current database is up to date.', true));
exit();
} else {
$this->out($contents);
}
if('y' == $this->in('Are you sure you want to update your database?', array('y', 'n'), 'n')) {
$this->out('Updating Database...');
if(!$this->Schema->before($compare)) {
return false;
}
if ($db->_execute($contents)) {
$this->Schema->after($compare);
$this->out(__('Database updated', true));
exit();
} else {
$this->err(__('Database could not be updated', true));
$this->err($db->lastError());
exit();
}
}
}
/**
* Displays help contents
*
* @return void
*/
function help() {
$this->out('The Schema Shell generates a schema object from the database and updates the database from the schema.');
$this->hr();
$this->out("Usage: cake schema <command> <arg1> <arg2>...");
$this->hr();
$this->out('Params:');
$this->out("\n\t-connection\n\t\tset db config. uses 'default' if none is specified");
$this->out("\n\t-path\n\t\tpath to read and write schema.php. uses ". $this->Schema->path ." by default");
$this->out('Commands:');
$this->out("\n\tschema help\n\t\tshows this help message.");
$this->out("\n\tschema view\n\t\tread and output contents of schema file");
$this->out("\n\tschema generate\n\t\treads from 'connection' writes to 'path'");
$this->out("\n\tschema dump <filename>\n\t\tdump database sql based on schema file to filename in schema path. if filename is true, default will use the app directory name.");
$this->out("\n\tschema create <table>\n\t\tdrop tables and create database based on schema file\n\t\toptional <table> arg for creating only one table");
$this->out("\n\tschema update <table>\n\t\talter tables based on schema file\n\t\toptional <table> arg for altering only one table");
$this->out("");
exit();
}
}
?>