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<?php |
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namespace Resourceful; |
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use Silex\Application; |
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use Symfony\Component\HttpFoundation\Request; |
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class SchemaHandler |
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{ |
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protected $schemaId; |
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protected $template; |
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protected $replacements; |
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/** |
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* @return string schemaUrl |
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*/ |
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public static function getSchemaUrl($schemaId, Application $app) |
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{ |
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static $urlCache =array(); |
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assert (!empty($schemaId)); |
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if( !isset($urlCache[$schemaId])){ |
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$urlCache[$schemaId] = $app["url_generator"]->generate('schema', array("id" => $schemaId)); |
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} |
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return $urlCache[$schemaId]; |
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} |
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/** |
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* create a schema from template if it does not exist |
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* |
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* @return string schemaUrl |
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*/ |
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protected static function _register(Application $app, $schemaId, $template, array $replacements) |
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{ |
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assert( isset($app['schema.cache'])); |
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assert( isset($app['data.store'])); |
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assert( isset($app['twig'])); |
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$schemaUrl = static::getSchemaUrl($schemaId, $app); |
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$store = isset($app['schema.store'])?$app['schema.store']:$app['data.store']; |
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if ( |
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$app['createDefault'] |
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&& !$store->contains($schemaUrl) |
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&& ($schema=json_decode($app["twig"]->render("schema_{$template}.json.twig", $replacements))) |
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) { |
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$store->save($schemaUrl, $schema); |
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} |
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$app["schema.cache"]->add($schemaUrl, $store->fetch($schemaUrl)); |
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return $schemaUrl; |
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} |
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public static function register(Application $app, $schemaId=null, $template=null, array $replacements = array()) |
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{ |
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$handler = new static($schemaId, $template, $replacements); |
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return static::_register($app, $handler->schemaId, $handler->template, $handler->replacements); |
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} |
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public function __construct($schemaId, $template=null, array $replacements = array()) |
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{ |
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assert (!empty($schemaId)); |
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$this->schemaId=$schemaId; |
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$this->template = $template?:$this->schemaId; |
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$this->replacements = array_merge(array("schemaId" => $this->schemaId, "schemaTitle" => ucfirst($this->schemaId)),$replacements); |
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} |
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public function __invoke(Request $request, Application $app) |
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{ |
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static::_register($app, $this->schemaId, $this->template, $this->replacements); |
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} |
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} |
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e-artspace /
resourceful
