336 lines
7.8 KiB
PHP
336 lines
7.8 KiB
PHP
<?php namespace Laravel; defined('DS') or die('No direct script access.');
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class Bundle {
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/**
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* All of the application's bundles.
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*
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* @var array
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*/
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public static $bundles = array();
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/**
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* A cache of the parsed bundle elements.
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*
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* @var array
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*/
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public static $elements = array();
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/**
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* All of the bundles that have been started.
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*
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* @var array
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*/
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public static $started = array();
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/**
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* Register a bundle for the application.
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*
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* @param string $bundle
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* @param string $location
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* @param string $handles
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* @return void
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*/
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public static function register($bundle, $config = array())
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{
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$defaults = array('handles' => null, 'auto' => false);
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// If the given config is actually a string, we will assume it is a location
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// and convert it to an array so that the developer may conveniently add
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// bundles to the configuration without making an array for each one.
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if (is_string($config))
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{
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$config = array('location' => $config);
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}
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if ( ! isset($config['location']))
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{
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$config['location'] = $bundle;
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}
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// We will trim the trailing slash from the location and add it back so
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// we don't have to worry about the developer adding or not adding it
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// to the location path for the bundle.
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$config['location'] = path('bundle').rtrim($config['location'], DS).DS;
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static::$bundles[$bundle] = array_merge($defaults, $config);
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}
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/**
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* Load a bundle by running it's start-up script.
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*
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* If the bundle has already been started, no action will be taken.
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*
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* @param string $bundle
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* @return void
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*/
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public static function start($bundle)
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{
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if (static::started($bundle)) return;
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if ($bundle !== DEFAULT_BUNDLE and ! static::exists($bundle))
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{
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throw new \Exception("Bundle [$bundle] has not been installed.");
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}
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// Each bundle may have a "start" script which is responsible for preparing
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// the bundle for use by the application. The start script may register any
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// classes the bundle uses with the auto-loader, or perhaps will start any
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// dependent bundles so that they are available.
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if (file_exists($path = static::path($bundle).'bundle'.EXT))
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{
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require_once $path;
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}
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// Each bundle may also have a "routes" file which is responsible for
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// registering the bundle's routes. This is kept separate from the
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// start script for reverse routing efficiency purposes.
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static::routes($bundle);
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static::$started[] = strtolower($bundle);
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}
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/**
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* Load the "routes" file for a given bundle.
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*
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* @param string $bundle
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* @return void
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*/
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public static function routes($bundle)
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{
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if (file_exists($path = static::path($bundle).'routes'.EXT))
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{
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require_once $path;
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}
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}
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/**
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* Determine which bundle handles the given URI.
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*
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* If no bundle is assigned to handle the URI, the default bundle is returned.
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*
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* @param string $bundle
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* @return string
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*/
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public static function handles($uri)
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{
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foreach (static::$bundles as $key => $value)
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{
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if (starts_with($uri, $value['handles'])) return $key;
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}
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return DEFAULT_BUNDLE;
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}
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/**
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* Deteremine if a bundle exists within the bundles directory.
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*
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* @param string $bundle
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* @return bool
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*/
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public static function exists($bundle)
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{
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return in_array(strtolower($bundle), static::names());
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}
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/**
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* Determine if a given bundle has been started for the request.
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*
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* @param string $bundle
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* @return void
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*/
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public static function started($bundle)
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{
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return in_array(strtolower($bundle), static::$started);
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}
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/**
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* Get the identifier prefix for the bundle.
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*
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* @param string $bundle
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* @return string
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*/
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public static function prefix($bundle)
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{
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return ($bundle !== DEFAULT_BUNDLE) ? "{$bundle}::" : '';
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}
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/**
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* Get the class prefix for a given bundle.
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*
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* @param string $bundle
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* @return string
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*/
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public static function class_prefix($bundle)
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{
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return ($bundle !== DEFAULT_BUNDLE) ? Str::classify($bundle).'_' : '';
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}
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/**
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* Return the root bundle path for a given bundle.
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*
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* <code>
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* // Returns the bundle path for the "admin" bundle
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* $path = Bundle::path('admin');
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*
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* // Returns the path('app') constant as the default bundle
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* $path = Bundle::path('application');
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* </code>
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*
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* @param string $bundle
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* @return string
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*/
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public static function path($bundle)
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{
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return ($bundle == DEFAULT_BUNDLE) ? path('app') : static::$bundles[$bundle]['location'];
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}
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/**
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* Return the root asset path for the given bundle.
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*
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* @param string $bundle
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* @return string
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*/
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public static function assets($bundle)
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{
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return ($bundle != DEFAULT_BUNDLE) ? URL::base()."/bundles/{$bundle}/" : URL::base().'/';
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}
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/**
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* Get the bundle name from a given identifier.
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*
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* <code>
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* // Returns "admin" as the bundle name for the identifier
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* $bundle = Bundle::name('admin::home.index');
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* </code>
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*
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* @param string $identifier
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* @return string
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*/
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public static function name($identifier)
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{
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list($bundle, $element) = static::parse($identifier);
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return $bundle;
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}
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/**
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* Get the element name from a given identifier.
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*
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* <code>
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* // Returns "home.index" as the element name for the identifier
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* $bundle = Bundle::bundle('admin::home.index');
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* </code>
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*
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* @param string $identifier
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* @return string
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*/
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public static function element($identifier)
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{
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list($bundle, $element) = static::parse($identifier);
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return $element;
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}
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/**
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* Reconstruct an identifier from a given bundle and element.
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*
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* <code>
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* // Returns "admin::home.index"
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* $identifier = Bundle::identifier('admin', 'home.index');
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*
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* // Returns "home.index"
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* $identifier = Bundle::identifier('application', 'home.index');
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* </code>
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*
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* @param string $bundle
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* @param string $element
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* @return string
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*/
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public static function identifier($bundle, $element)
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{
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return (is_null($bundle) or $bundle == DEFAULT_BUNDLE) ? $element : $bundle.'::'.$element;
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}
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/**
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* Return the bundle name if it exists, else return the default bundle.
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*
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* @param string $bundle
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* @return string
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*/
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public static function resolve($bundle)
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{
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return (static::exists($bundle)) ? $bundle : DEFAULT_BUNDLE;
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}
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/**
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* Parse a element identifier and return the bundle name and element.
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*
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* <code>
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* // Returns array(null, 'admin.user')
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* $element = Bundle::parse('admin.user');
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*
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* // Parses "admin::user" and returns array('admin', 'user')
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* $element = Bundle::parse('admin::user');
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* </code>
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*
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* @param string $identifier
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* @return array
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*/
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public static function parse($identifier)
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{
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// The parsed elements are cached so we don't have to reparse them on each
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// subsequent request for the parsed element. So, if we've already parsed
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// the given element, we'll just return the cached copy.
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if (isset(static::$elements[$identifier]))
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{
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return static::$elements[$identifier];
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}
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if (strpos($identifier, '::') !== false)
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{
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$element = explode('::', strtolower($identifier));
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}
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// If no bundle is in the identifier, we will insert the default bundle
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// since classes like Config and Lang organize their items by bundle.
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// The "application" folder essentially behaves as a bundle.
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else
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{
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$element = array(DEFAULT_BUNDLE, strtolower($identifier));
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}
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return static::$elements[$identifier] = $element;
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}
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/**
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* Get the information for a given bundle.
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*
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* @param string $bundle
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* @return object
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*/
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public static function get($bundle)
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{
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return (object) array_get(static::$bundles, $bundle);
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}
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/**
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* Get all of the installed bundles for the application.
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*
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* @return array
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*/
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public static function all()
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{
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return static::$bundles;
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}
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/**
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* Get all of the installed bundle names.
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*
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* @return array
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*/
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public static function names()
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{
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return array_keys(static::$bundles);
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}
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} |