AJAX i JSON w Zend Framework<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.piotr.rybaltowski.pl\/ajax-i-json-w-zend-framework\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"AJAX i JSON w Zend Framework\" \/>\n<meta property=\"og:description\" content=\"Podobny wpis dla Zend Framework 2 mo\u017cna znale\u017a\u0107 tutaj (13 maja 2013). Zacz\u0105\u0142em niedawno nowy projekt. 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Do\u2026","rel":"","context":"In "Ksi\u0105\u017cki"","img":{"alt_text":"","src":"https:\/\/i0.wp.com\/blog.piotr.rybaltowski.pl\/wp-content\/uploads\/2011\/12\/zend-framework-wlodzimierz-gajda.list_.png?fit=200%2C307&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":346,"url":"https:\/\/blog.piotr.rybaltowski.pl\/routery-part-w-zend-framework-2-i-sprawdzanie-nazwy-domeny\/","url_meta":{"origin":234,"position":2},"title":"Routery Part w Zend Framework 2 i sprawdzanie nazwy domeny","date":"21 marca 2012","format":false,"excerpt":"Zend Framework 2 jest ju\u017c w wersji beta 3 i wielkimi krokami zbli\u017ca si\u0119 faza RC i w ko\u0144cu oficjalny release. Mam okazj\u0119 pracowa\u0107 w tym frameworku przy kilku projektach i poznawa\u0107 mniejsze i wi\u0119ksze nowo\u015bci, kt\u00f3re nowe wydanie oferuje programistom. 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Podobny wpis dla Zend Framework 2 mo\u017cna znale\u017a\u0107 tutaj (13 maja 2013)<\/a>.<\/div>\n

Zacz\u0105\u0142em niedawno nowy projekt. Kolejny oparty o Zend Framework<\/a>, a tym razem w znacznym stopniu wykorzystuj\u0105cy tzw. AJAX<\/abbr>. Jednak zamiast zwraca\u0107 XML<\/abbr> wol\u0119 dane dostawa\u0107 jako JSON<\/abbr>. Jak to robi\u0119, wykorzystuj\u0105c dobrodziejstwa ZF<\/abbr>? Poka\u017c\u0119 na przyk\u0142adzie akcji logowania.<\/p>\n

Akcja logowania nie generuje u mnie \u017cadnych formularzy ani tekstu. S\u0142u\u017cy tylko do wywo\u0142ania przez zapytanie asynchroniczne i zwr\u00f3cenia danych jako JSON<\/abbr>.<\/p>\n

Oto kod akcji:<\/p>\n

class AccountController extends Zend_Controller_Action\r\n{\r\n    function signinAction()\r\n    {\r\n        if($this->view->checkLogin())die();\r\n        $this->_helper->layout->setLayout('json');\r\n        $this->view->json = array('error'=>0, 'signin'=>false, 'message'=>'');\r\n        if($this->_request->isPost())\r\n        {\r\n            $f = new Zend_Filter_StripTags();\r\n            $login = $f->filter($this->_request->getPost('login',''));\r\n            $password = $f->filter($this->_request->getPost('password',''));\r\n            if(!empty($login))\r\n            {\r\n                $authAdapter = new Zend_Auth_Adapter_DbTable(Zend_Db_Table::getDefaultAdapter(), 'users', 'email', 'passwd', 'MD5(?) AND is_deleted = 0');\r\n                $authAdapter->setIdentity($login);\r\n                $authAdapter->setCredential($password);\r\n                $auth = Zend_Auth::getInstance();\r\n                $result = $auth->authenticate($authAdapter);\r\n                if($result->isValid())\r\n                {\r\n                    $data = $authAdapter->getResultRowObject(array('id_user', 'email', 'name', 'user_role'));\r\n                    $auth->getStorage()->write($data);\r\n                    $this->view->json['signin']=true;\r\n                }\r\n            }\r\n        }\r\n        if(!$this->view->json['signin'])\r\n            $this->view->json['message']='Podane e-mail i has\u0142o nie pasuj\u0105 do siebie.';\r\n    }\r\n}<\/pre>\nPo kolei<\/h3>\nCa\u0142a magia zaczyna si\u0119 od<\/p>\n$this->_helper->layout->setLayout('json');\r\n$this->view->json = array('error'=>0, 'signin'=>false, 'message'=>'');<\/pre>\nczyli wybrania layoutu dla tej akcji i zainicjowania tablicy json<\/i> w obiekcie view<\/i>. Dalej odbywa si\u0119 logowanie za pomoc\u0105 modu\u0142u Zend_Auth<\/a> (o tym mo\u017ce przy innej okazji) i odpowiednie wype\u0142nianie tablicy json<\/i>.<\/p>\n
A po co by\u0142 ten wyb\u00f3r layoutu? To nowo\u015b\u0107 w wersji 1.5 frameworka. W pliku bootstrap<\/i> (zazwyczaj index.php<\/i>) nale\u017cy go zainicjowa\u0107 dodaj\u0105c linijk\u0119:<\/p>\n
Zend_Layout::startMvc(array('layoutPath'=>ROOT_DIR.'\/application\/views\/layouts\/'));<\/pre>\nDomy\u015blny layout nale\u017cy umie\u015bci\u0107 w pliku \/application\/views\/layouts\/layout.phtml<\/i> – b\u0119dzie on wczytywany dop\u00f3ki go dla danej akcji nie wy\u0142\u0105czymy lub nie zmienimy. To drugie zrobi\u0142em w\u0142a\u015bnie w akcji logowania. A w pliku \/application\/views\/layouts\/json.phtml<\/i> wrzuci\u0142em tylko:<\/p>\njson(isset($this->json)?$this->json:array())?><\/pre>\ni wtedy ca\u0142a odpowied\u017a akcji to przerobiona tablica json<\/i> za pomoc\u0105 zendowego helpera json()<\/i>. Reszta to ju\u017c kwestia JS<\/abbr> i odpowiedniego odczytania zwr\u00f3conego obiektu. Korzystam z mootools<\/a> i tamtejszej metody Json.evaluate()<\/i>; pobieranie danych za pomoc\u0105 Json.Remote<\/i> generowa\u0142o b\u0142\u0119dy.<\/p>\n
\/*\r\n * url - adres akcji logowania - w przyk\u0142adzie \/account\/signin\/\r\n * params - informacje logowania\r\n *\/\r\nnew Ajax(url, {'data':params, 'method': 'post', 'onComplete': function(t){\r\n        var data = Json.evaluate(t);\r\n        if(!data)\r\n                alert('Wyst\u0105pi\u0142 b\u0142\u0105d podczas logowania!');\r\n        if(data.error)\r\n                alert('Wyst\u0105pi\u0142 b\u0142\u0105d podczas logowania!');\r\n        if(data.signin)\r\n                alert('Zalogowany!');\r\n        else\r\n                alert(data.message);\r\n}<\/pre>\nPodsumowanie<\/h3>\nOczywi\u015bcie logowanie to tylko przyk\u0142ad tworzenia wyniku JSON<\/abbr>. Najwa\u017cniejsze elementy to:<\/p>\n
\nzainicjowanie Zend_Layout<\/i>;<\/li>\n
utworzenie tablicy json<\/i> (tylko ten krok nale\u017cy wykona\u0107 w ka\u017cdej akcji<\/strong>, pozosta\u0142e wykonaj\u0105 si\u0119 automagicznie);<\/li>\n
zdefiniowanie layoutu jsonowego;<\/li>\n
przekszta\u0142cenie tablicy do JSON<\/abbr> w layoucie;<\/li>\n
skrypt akcji w views<\/i> mo\u017ce zosta\u0107 pusty.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"Podobny wpis dla Zend Framework 2 mo\u017cna znale\u017a\u0107 tutaj (13 maja 2013). Zacz\u0105\u0142em niedawno nowy projekt. Kolejny oparty o Zend<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[6,4,5],"tags":[],"jetpack_publicize_connections":[],"yoast_head":"\nAJAX i JSON w Zend Framework<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.piotr.rybaltowski.pl\/ajax-i-json-w-zend-framework\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"AJAX i JSON w Zend Framework\" \/>\n<meta property=\"og:description\" content=\"Podobny wpis dla Zend Framework 2 mo\u017cna znale\u017a\u0107 tutaj (13 maja 2013). 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