{"id":26658,"date":"2017-05-29T17:06:02","date_gmt":"2017-05-29T17:06:02","guid":{"rendered":"https:\/\/dev.railscarma.com\/whats-new-rails-5-1\/"},"modified":"2021-06-05T08:16:49","modified_gmt":"2021-06-05T08:16:49","slug":"whats-new-rails-5-1","status":"publish","type":"post","link":"https:\/\/www.railscarma.com\/it\/blog\/articoli-tecnici\/whats-new-rails-5-1\/","title":{"rendered":"Cosa c'\u00e8 di nuovo in Rails 5.1"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"26658\" class=\"elementor elementor-26658\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-502b1260 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"502b1260\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-711b7998\" data-id=\"711b7998\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-40069b11 elementor-widget elementor-widget-text-editor\" data-id=\"40069b11\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tPer tutti coloro che stavano aspettando il rilascio della nuovissima e pulita versione di Rails 5.1, l'attesa \u00e8 finita. La nuova versione di Rails 5.1 accetta facilmente le SPA (Single Page Application) e rappresenta anche un vero e proprio upgrade in termini di prestazioni e struttura di Rails, uno dei framework pi\u00f9 popolari. Rails 5.1 supporta una moltitudine di miglioramenti come i test di sistema, la crittografia e la gestione delle dipendenze JavaScript.\n<h3>Alcune caratteristiche di Rails 5.1 sono elencate di seguito:<\/h3>\n<h4><strong>Versione in rubino<\/strong><\/h4>\nRichiede Ruby 2.3.1 o una versione superiore di Ruby.\n<h4><strong>Niente pi\u00f9 comandi RAKE<\/strong><\/h4>\nQuando vogliamo eseguire una migrazione in Rails 4 dobbiamo digitare <strong>rake db:migrare<\/strong>ma in Rails 5.1\ndiventer\u00e0 <strong>rotaie db:migrare<\/strong>. In Rails 5.1 tutti gli attuali comandi di rake saranno accessibili tramite il comando rails. Ora possiamo riavviare tutte le nostre applicazioni con il comando <strong>riavvio di rake<\/strong>.\n<h4><strong>Server App<\/strong><\/h4>\nNelle applicazioni Rails 5.1, il server Puma \u00e8 presente di default nel Gemfile.\n<h4><strong>Supporto per il filato<\/strong><\/h4>\nYarn \u00e8 come un bundler per la gestione delle dipendenze JavaScript da NPM, con il quale possiamo facilmente utilizzare librerie come React, VueJS o qualsiasi altra libreria dal mondo NPM. \u00c8 integrato con la pipeline delle risorse, in modo che tutte le dipendenze funzionino senza problemi con l'applicazione Rails 5.1.\n\nSu Debian o Ubuntu Linux, per installare Yarn tramite il repository dei pacchetti Debian, seguite il comando seguente:\n<h4><strong>Supporto Webpacker<\/strong><\/h4>\nWebpack pu\u00f2 essere usato per compilare Javascript usando <strong>webpacker<\/strong> <strong>gemma<\/strong>. Viene utilizzato per gestire i moduli e le dipendenze. Se si tratta di applicazioni a pagina singola, si pu\u00f2 facilmente impostare <strong>React, Angular, <\/strong>E<strong> Vue.js<\/strong>. Per avviare un progetto Rails\/React si pu\u00f2 eseguire il comando seguente:\n\nPer un progetto esistente, occorre innanzitutto aggiungere l'opzione <strong>gemma webpacker<\/strong> nel Gemfile, quindi eseguire il comando di cui sopra. Allo stesso modo creiamo l'applicazione per Angular e Vue.js.Per maggiori informazioni su webpacker, consultare questo link <a href=\"https:\/\/github.com\/rails\/webpacker.\">https:\/\/github.com\/rails\/webpacker.<\/a>\n<h4><strong>Nuovo helper form_with<\/strong><\/h4>\nIn Rails 5.1 \u00e8 stato aggiunto un nuovo helper form_with che combina i metodi form_for e form_tag.\n<h4><strong>Percorsi diretti e risolti<\/strong><\/h4>\nQuesti due nuovi metodi diretto e risolto sono stati aggiunti al DSL Routing.\nIl <strong>diretto<\/strong> consente di creare helper URL personalizzati.\nEsempio:\n\nIl metodo <strong>risolvere<\/strong> ci permette di personalizzare la mappatura polimorfica dei modelli.\n\nQuesto generer\u00e0 l'URL singolare \/product, invece del solito \/products\/:id.\n<h4><strong>Postini parametrizzati<\/strong><\/h4>\nOra nei mailer si possono definire prima delle azioni, passando dei parametri al metodo. Questi parametri saranno usati per tutti i metodi di una classe di mailer, per condividere variabili di istanza, intestazioni e altre impostazioni comuni.\nEsempio:\n<h4><strong>Nuovo aiutante per i tag<\/strong><\/h4>\nL'helper del tag ActionView \u00e8 stato modificato per fornire una sintassi pi\u00f9 pulita e leggibile:\n<h4><strong>Test di sistema<\/strong><\/h4>\nLa soluzione migliore per i test di sistema su Ruby \u00e8 stata l'uso di Capybara. Attualmente, l'uso di Capybara implica la sua impostazione nel nostro progetto, insieme a una strategia di pulizia del database con strumenti come database_cleaner e launchy gem per aiutarci a eseguire il debug quando si verifica un errore.\n\nVolete sviluppare la vostra applicazione? <a href=\"https:\/\/www.railscarma.com\/it\/\"><strong>RailsCarma<\/strong><\/a> pu\u00f2 aiutare! Dai un&#039;occhiata al nostro <a href=\"\/it\/portafoglio\/\"><strong>portafoglio<\/strong><\/a> per capire come stiamo contribuendo a cambiare la forma dell&#039;industria del software fornendo <a href=\"https:\/\/www.railscarma.com\/it\/assumere-ruby-on-rails-sviluppatore\/\">Sviluppatore di Ruby on Rails<\/a>. <a href=\"\/it\/contattaci\/\">Mettiti in contatto con noi adesso!<\/a>\n\n<span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer; top: 2874px; left: 40px;\">Salva<\/span>\n\n<span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c  no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer; top: 2874px; left: 40px;\">Salva<\/span>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6b011f50 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6b011f50\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-614224c1\" data-id=\"614224c1\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4e5e8e59 elementor-widget elementor-widget-heading\" data-id=\"4e5e8e59\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Iscriviti per gli ultimi aggiornamenti<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-12d46f4f elementor-widget elementor-widget-shortcode\" data-id=\"12d46f4f\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\t\t\t\t\t<script type=\"text\/javascript\">\n\t\t\t\t\t\tvar gCaptchaSibWidget;\n                        var onloadSibCallbackInvisible = function () {\n\n                            var element = document.getElementsByClassName('sib-default-btn');\n                            var countInvisible = 0;\n                            var indexArray = [];\n                          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class=\"sib_signup_form\" action=\"\">\n\t\t\t\t<div class=\"sib_loader\" style=\"display:none;\"><img\n\t\t\t\t\t\t\tsrc=\"https:\/\/www.railscarma.com\/wp-includes\/images\/spinner.gif\" alt=\"caricatore\"><\/div>\n\t\t\t\t<input type=\"hidden\" name=\"sib_form_action\" value=\"subscribe_form_submit\">\n\t\t\t\t<input type=\"hidden\" name=\"sib_form_id\" value=\"1\">\n                <input type=\"hidden\" name=\"sib_form_alert_notice\" value=\"Please fill out this field\">\n                <input type=\"hidden\" name=\"sib_form_invalid_email_notice\" value=\"Your email address is invalid\">\n                <input type=\"hidden\" name=\"sib_security\" value=\"297ab9f1f5\">\n\t\t\t\t<div class=\"sib_signup_box_inside_1\">\n\t\t\t\t\t<div style=\"\/*display:none*\/\" class=\"sib_msg_disp\">\n\t\t\t\t\t<\/div>\n                                            <div id=\"sib_captcha_invisible\" class=\"invi-recaptcha\" data-sitekey=\"6LdikOAaAAAAAJ6SWrrKVQrtw7TQpQAEnv0HS0G3\"><\/div>\n        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border-color: #ebccd1;\n    color: #a94442;\n}\nform#sib_signup_form_1 p.sib-alert-message-success {\n    background-color: #dff0d8;\n    border-color: #d6e9c6;\n    color: #3c763d;\n}\nform#sib_signup_form_1 p.sib-alert-message-warning {\n    background-color: #fcf8e3;\n    border-color: #faebcc;\n    color: #8a6d3b;\n}\n\t\t\t<\/style>\n\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t  <div class=\"related-post slider\">\r\n        <div class=\"headline\">Articoli correlati<\/div>\r\n    <div class=\"post-list owl-carousel\">\r\n\r\n            <div class=\"item\">\r\n            <div class=\"thumb post_thumb\">\r\n    <a  title=\"Gemma Kaminari\" href=\"https:\/\/www.railscarma.com\/it\/blog\/articoli-tecnici\/gemma-di-kaminari\/?related_post_from=37277\">\r\n\r\n      <img decoding=\"async\" width=\"800\" height=\"300\" 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