So I have a link_to method that requires the body argument to be populated by translated material.
For example:
link_to('translated material', '/dashboard')
I currently have it set up so in my en.yml (for example) has:
en:
dashboard: 'Dashboard'
and in a typical situation where I need translation I would just do, for example, this: <%= t :dashboard %>
This works great. However, how do I place that into the link_to() method like so:
link_to(*insert :dashboard translated text here*, '/dashboard')
I'm sure it's simple formatting, still learning all the nuances of ROR!
Just put everything together:
link_to(t('dashboard'), dashboard_path)
btw. it is preferred to use the named routes. Do not use strings as urls.
Related
I have a route with a namespace
namespace :publishers do
resources :authors
get 'books' :to => 'books'
get 'books/custom_report/:id', :to => "curriculos#custom_report"
end
Often I will have to make links in my application and I know than it`s possible to use a alias for routing like this:
<%= link_to "Books", publishers_books_path %>
I call that publishers_books_path a alias route, does this is the correct name?
Furthermore, I still not able to understand the logic with this alias naming because i can`t use for a new or a custom action like this
link_to 'Show the report', publishers_books_custom_report_path(params[:id])
I'm always get a error of undefined_method for publishers_books_custom_report_path
So there`s some questions
First of all whats it`s the correct name of this feature in RoR?
How I can use the custom_report as aliases to link_to? And also if i need to use some basic operations like new, update, insert?
Can someone give me the link to the documentation to really understant that feature?
First of all whats it`s the correct name of this feature in RoR?
The docs use "path helper" and "named route helpers" interchangeably.
How I can use the custom_report as aliases to link_to?
Use rails route or visit /rails/info/routes in your dev server to get a list of all your routes, their helpers, and controller actions.
Apparently it is publishers_path which doesn't seem right. You can fix this with an as.
get 'books/custom_report/:id', to: "curriculos#custom_report", as: :books_custom_report
And also if i need to use some basic operations like new, update,
insert?
A get declares just that one specific route. If you need all the operations on a model, declare it as a resource.
namespace :publishers do
resource :authors
resource :books
get 'books/custom_report/:id', to: "curriculos#custom_report", as: :books_custom_report
end
Can someone give me the link to the documentation to really understand that feature?
Rails Routing From The Outside In.
I have a model that is responsible for manipulating resource paths. I would like to leverage some Rails routing helpers if I can. I don't want to make any assumptions of the type of resource that is being manipulated, as I would like that to be generic.
http://edgeguides.rubyonrails.org/routing.html#creating-paths-and-urls-from-objects
states that "You can also use url_for with a set of objects, and Rails will automatically determine which route you want:"
<%= link_to 'Ad details', url_for([#magazine, #ad]) %>
From what I've found url_for helpers typically expect a hash that includes the controller, action, etc. What I have been looking for is what the above url_for seems to be returning, which is the resource path from an array of objects. I'm not sure if I'm just using the wrong namespace, but looking through the API docs, I can't find a namespace that would provide the above method.
Just to clarify, I am trying to do something such as below in a model:
resource_array = [parent_resource, child_resource]
resource_path = url_for(resource_array)
I usually keep any routing code out of a model class, but this class is dedicated to manipulating resource paths. Thanks in advance.
Edit:
This is the syntax that I ended up using:
Rails.application.routes.url_helpers.polymorphic_path(resource)
Edit (2):
I feel like there has to be a nicer way to do this, but this is what I have right now.
resource_path = ''
resource_array.each do |resource|
resource_path += '/' + resource.class.name.pluralize.underscore + '/' + resource.id.to_s
end
I'm not sure this is what you're asking for, but url_for is an instance method of the module ActionDispatch::Routing::UrlFor, so you need to extend or include that module to gain access to the method.
I'm using the default I18n module for Rails to translate my strings in views.
<%= t("registration.heading") %>
Now, when I'm in the registration-view, all my strings start with registration. I always have to write
<%= t("registration.heading.notice") %>
// or
<%= t(:heading, :scope => :registration) %>
It would be nice to define a default scope for that file (maybe even in the controller), so a call to t automatically adds the defined scope
// controller
set_i18n_default_scope :registration
// view
<%= t(:heading) %>
// --> looks in "registration.heading"
Is this possible?
If you organize your translations adding a view name, as in:
en:
registration:
index:
heading: "Registration heading"
then you may use this:
<%= t(".heading") %>
Notice that the first character is a dot.
You may read about it in Rails Internationalization (I18n) API Guide
If you have texts which are shared amongst numerous views, and you don't want to copy the same translation in each section for each view, you may use YAML references. They are nicely described on wikipedia: http://en.wikipedia.org/wiki/YAML#Repeated_nodes
It is possible. Check section 4.1.4 of the Rails i18n API
4.1.4 “Lazy” Lookup
Rails 2.3 implements a convenient way
to look up the locale inside views.
When you have the following
dictionary:
es: books:
index:
title: "Título"
you can look up the books.index.title value inside
app/views/books/index.html.erb
template like this (note the dot):
<%= t '.title' %>
Regarding Lazy Lookups:
Here's the general solution for this kind of problem
Common Problem: Where is Rails trying to look-up L10N / I18N Strings? - e.g. when doing Lazy Lookups
It's not easy to guess, because it's different for Views, Controllers, Models, Labels, Helpers, or Validations... etc... but...
It's easy to find out directly, using this:
http://www.unixgods.org/Rails/where_is_Rails_trying_to_lookup_L10N_strings.html
this helps figuring out what Rails thinks the current scope is (e.g. when using ".heading")
3 Simple Steps:
create a file ./config/initializers/i18n.rb , as described in the article above
put t('.heading') in your view
start "rails server" and look in the console output where Rails thinks the default location is for '.heading' for this view... e.g. what's the I18N-key
(4. then add the I18N string into the location identified by the key)
Works like a charm :-)
If you want to print out keys that I18n gem's lazy mode is looking for, you can add that in a i18n.rb file in your initializers folder:
module I18n
module Backend
class Simple
module Implementation
alias_method :lookup_orig, :lookup
# Give ability to check I18n looked up keys in lazy mode by setting env var I18N_DEBUG to true
#
def lookup(locale, key, scope = [], options = {})
puts "I18N keys: #{I18n.normalize_keys(locale, key, scope, options[:separator])}" if ENV['I18N_DEBUG']
lookup_orig(locale, key, scope, options)
end
end
end
end
end
(Gist: https://gist.github.com/capripot/6e6cf778ad2db0443280)
And then start your server like for instance:
I18N_DEBUG=true bundle exec rails server
I have a common partial for index where i want to insert some links.
On this links i would like to use the named_routes, like
link_to "Say hi",things_path(:param1=>:hello, :params2=>:there)
but i dont know if things_path is users_path, places_path or reviews_path, because this partial is shared for all controllers. There is any way to get the named route associated to the class or the current controller.
I want something like this
link_to "Say hi", path_of(#current_class)(:param1=>:hello, :params2=>:there)
There are several approaches to this. The simplest thing is to rely on polymorphic routing, such as: link_to "Say hi", #my_object. In this case rails will look at the class of #my_object and its current state (new_record?) and use the appropriate route and restful action. Assuming your partial is named _foo.html.erb then this can be as simple as
link_to 'Say hi', foo
... which is pretty awesome. This question has been asked before, here: Polymorphic Routes in Rails - in views but I guess it's hard to find answers without knowing the magic words "polymorphic routing" :-)
A path helper like cars_path is ultimately just a shortcut to setting :controller, :action and other params like :id. If you want to make the controller always equal to the current controller you can just say
link_to "Say hi", :action => "index", :param1=>:hello, :params2=>:there
Because the :controller option is omitted, it will be assumed to be the current controller.
I'm having a little issue...I setup a rails application that is to serve a german website. To make use of Rails' internal pluralization features, I kept all my models in english (e.g. the model "JobDescription").
Now, if I call "http://mysite.com/job_descriptions/", I get all my job_descriptions....so far, so good. Because I didn't want the english term "job_descriptions" in my url, I put the following into my routes.rb
map.german_term '/german_term', :controller => 'job_descriptions', :action => 'index'
map.german_term '/german_term/:id', :controller => 'job_descriptions', :action => 'show'
If I call "http://mysite.com/german_term/" or "http://mysite.com/german_term/283" I get all my job_descriptions, which is fine.
However, to make the URL more SEO friendly, I'd like to exchange the id for a more userfriendly slug in the URL. Thus, I put the following in my job_description.rb:
def to_param
"#{id}-#{name.gsub(/[^a-z0-9]+/i, '-')}"
end
which, whenever I use "job_description_path" in any link_to method, renders my URLs out to something like "http://mysite/job_descriptions/13-my-job-description-title".
However, and this is where I'm stuck, I'd like to get "http://mysite/german_term/13-my-job-description-title". I already tried to exchange the "job_description_path" with "german_term_path" in the link_to code, but that only generates "http://mysite/german_term/13". Obviously, to_param isn't called.
One workaround I found is to build the link with:
<%= link_to job_description.name, german_term_path(job_description.to_param) %>
But that's rather tedious to change all the link_to calls in my code. What I want is to replace "job_description" by "german_term" whenever it occurs in a URL.
Any thoughts?!?
Regards,
Sebastian
I think you're going to need to use the restful route helpers to get what you want.
In that case, it wouldn't take much re-factoring (assuming you've mapped JobDescriptions as a resource). Leave your to_param as is and change your JobDescriptions route to something like the following:
map.resources :job_descriptions, :as => 'german_term'
Hope this helps!
Rails only utilizes the
def to_params
end
URL builder when you are using a restful route/link helper. The only way I am aware of is to do it similar to how you did, unless you are willing to just scrap your english language links and do it all in German. In that case, just get rid of the named route lines and change the to_params to use the correct name field from the database. At that point, the REST routes should behave correctly.