mirror of
https://github.com/Oreolek/kohana-migrations.git
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96 lines
2.5 KiB
PHP
96 lines
2.5 KiB
PHP
<?php
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/**
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* Provides a set of utility functions for managing migrations
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*
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* @author Matt Button <matthew@sigswitch.com>
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**/
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class Minion_Migration_Util {
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/**
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* Parses a set of files generated by Kohana::find_files and compiles it
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* down into an array of migrations
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*
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* @param array Available files
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* @return array Available Migrations
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*/
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public static function compile_migrations_from_files(array $files)
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{
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$migrations = array();
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foreach($files as $file => $path)
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{
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// If this is a directory we're dealing with
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if(is_array($path))
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{
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$migrations += Minion_Migration_Util::compile_migrations_from_files($path);
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}
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else
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{
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$migration = Minion_Migration_Util::get_migration_from_filename($file);
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$migrations[$migration['id']] = array(
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'file' => $file,
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'location' => $migration['location']
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);
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}
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}
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return $migrations;
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}
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/**
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* Extracts information about a migration from its filename.
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*
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* Returns an array like:
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*
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* array(
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* 'location' => 'mylocation',
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* 'id' => '1293214439_initial-setup',
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* 'file' => 'migrations/mylocation/1293214439_initial-setup.php',
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* 'timestamp' => '1293214439',
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* 'description' => 'initial-setup',
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* );
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*
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* @param string The migration's filename
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* @return array Array of components about the migration
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*/
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public static function get_migration_from_filename($file)
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{
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$migration = array();
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// Get rid of the file's "migrations/" prefix, the file extension and then
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// the filename itself. The "location" is essentially a slash delimited
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// path from the migrations folder to the migration file
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$migration['location'] = dirname(substr($file, 11, -strlen(EXT)));
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$migration['id'] = basename($file, EXT);
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$migration['file'] = $file;
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list($migration['timestamp'], $migration['description'])
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= explode('_', $migration['id'], 2);
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return $migration;
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}
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/**
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* Gets a migration file from its timestamp, description and location
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*
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* @param integer|array The migration's ID or an array of timestamp, description
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* @param string The migration location
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* @return string Path to the migration file
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*/
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public static function get_filename_from_migration($migration, $location)
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{
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if(is_array($migration))
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{
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$location = $migration['location'];
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$migration = $migration['id'];
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}
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$location = ! empty($location) ? rtrim($location, '/').'/' : '';
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return $location.$migration.EXT;
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}
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}
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