ruby-on-rails - link_to - rails url helper . Creates a link tag of the given name using a URL created by the set of options unless the current request URI is the same as the links, in which case only the name is returned (or the given block is yielded, if one exists). View Rails URL Helpers on Learn.co and start learning to code for free. It's illegal (copyright infringement, privacy infringement, libel, etc.) The only exception is that Rails does some magic to auto include helpers in your views. Hier ist eine Quelle, die Sie als Referenz verwenden können.
However, by using the built-in helper methods, the links all updated automatically. Sie können Ihre request_url in einem param speichern und zu param_url umleiten, falls vorhanden. You probably already know this but the first time I realised it was like a wakeup call.
It's spam. Contribute to rails/rails development by creating an account on GitHub. ruby-on-rails - method - rails url helper . You can give link_to_unless_current a block which will specialize the default behavior (e.g., show a “Start Here” link rather than the link’s text).
Ruby on Rails. Instanzvariable vs. Symbol ... Ich habe bemerkt, dass in dem Scaffold generierten Code die Instanzvariable @post für das Formular_für Helper verwendet wird.
Helpers in Rails are modules. If we had hardcoded the URLs in the links in our views, we would have had a major issue: all of our links to the show pages would have broken, along with our Capybara tests. ruby-on-rails - create - rails url helper Die Route 3 Route hängt_index an den Routennamen an (2) Das liegt daran, dass Ihre Ressource benannt ist :planner statt :planners : Rails hat entschieden, den _index zu jeder untergeordneten Ebene hinzuzufügen. whereas the former accepts only a hash and is the underlying implementation defined on ActionDispatch::Routing::RouteSet. It's socially inappropriate (offensive to public order and morals) It's advertising. The singleton url_for on Rails.application.routes.url_helpers isn't the same as the url_for you get when you include the module in your class as the latter has support for polymorphic style routes, etc. I didn’t realise that I could treat a helper just like any other ruby module. It's very common to generate URLs outside of the Rails controller context, and so it's very common to need the functionality of this module in a place where it doesn't come for free (a serializer, a job, etc). Life is complicated, so who knows, but in any case the knife I'm talking about is Rails.application.routes.url_helpers. What is going on with this article? Link zurück zu der Seite, die vor dem Formular aufgerufen wurde (4) Da Sie sagen, es könnte eine andere Seite vor dem Formular sein, wahrscheinlich request_url kann Ihnen helfen. Help us understand the problem.