I have a rails route that is based on two conditions, that the domain and subdomain are a specific value. The problem is that there are multiple possible values for subdomain to work, but I can't seem to be able to pass them as an array or hash.
map.with_options(:conditions => {:domain => AppConfig['base_domain'], :subdomain => 'www'..'www3'}) do |signup|
signup.plans '/signup', :controller => 'accounts', :action => 'plans'
...[truncated]...
end
The above example works as accepting www, www1, www2 & www3 as a value for the subdomain. However, that doesn't really solve my needs. I need to be able to accept a value of '' (nothing), 'www' and 'www2' so I tried something to the extend of:
map.with_options(:conditions => {:domain => AppConfig['base_domain'], :subdomain => ['','www','www2']}) do |signup|
That's similar to how you would set it up in ActiveRecord but it doesn't seem to be the same for routes.
Does anybody know now I can specify three values that aren't sequential?
If you can render it as a regular expression, you can use it as a condition. Converting an array to a regular expression is quite easy:
:subdomain => Regexp.new(%w[ www www3 ].collect { |p| Regexp.escape(p) }.join('|'))
Since you're just dealing with a simple pattern anyway, why not express it as this?
:subdomain => /www\d*/
It is important to note that the regular expressions used by routes are not supposed to be anchored using ^ or $ like you usually would. They must match completely to be valid, and partial matches are ignored.
Related
Right now I am finding routing and URL constructing within rails to be semi-confusing. I have currently matched the following for tags that are passed in when displaying/filtering data.
match '/posts/standard/' => 'posts#standard'
match '/posts/standard/:tags' => 'posts#standard', :as => :post_tag
match '/posts/standard/:tags' => redirect { |params| "/posts/standard/#{params[:tags].gsub(' ', '+')}" }, :tags => /.+/
However, now I want to add a 'skill' parameter that can only take one state; however, I am very confused by how I want to construct this within my URL. I cannot simply have...
match '/posts/standard/:tags/:skill' => 'posts#standard', as => post_tag, as: => post_skill
So, I am very confused by this at this point, does Rails offer any type of help for constructing URL's?
One way is to just keep your main route
match '/posts/standard/:tags' => 'posts#standard', :as => :post_tag
and handle the additional URL params as params. The url would look like:
/posts/standard/1?skill=something
and it is easy enough to inject the additional params, such as by
link_to post_tag_path(:skill=> 'something')
and your controller would then do
def standard
if params[:skill] == 'something'
...
else
...
end
end
Also, not sure about this, but your first line in your routes 'match '/posts/standard/' => 'posts#standard' may catch all of your routes since there is a match. If this is the case, simply move it to after the first line.
I want to accept URLs for my objects that contain an element that is not used, but which would be nice for SEO reasons. For example, I want to accept an url like:
http://localhost:3000/people/USA/123-joe-schmoe
.. where the "/USA" bit has no significance at all, other than signaling to users and search engines that this person resides in the USA.
I've tried setting up my rule using globbing, as well as for example doing something like
match "people/:whatever/:id" => "people#show", :constraints => {:id => /\d+-.*/}, :as => "person"
But this results in an attempt to route to :controller => people, :action => "show", :whatever => #<Person id: 123 ...> which fails.
Is it possible to have the routing ignore the :whatever part and pass in my :id in stead?
You can try a widcard match instead
match "people/*/:id => "doctors#show", :constraints=> {:id=>/\d+=.*/}, :as=>"person"
I am new to rails and was wondering how I can make this work. I want a URL to look like this:
http://localhost:3000/businesses/coldfire-gundam
using this route:
match "/businesses/:permalink", :to => "businesses#show", :as => :business_permalink
however when I place this route before this:
resources :businesses
any call to /businesses/1 (1 as param[:id]) does not work anymore, obviously because it is caught by the permalink declaration
how can I make it work then?
You need a way to differentiate /businesses/:id and /businesses/:permalink. The :id should always be numeric (unless of course you're using MongoDB) so if you can force your :permalink to always contain something non-numeric then a simple :constraints should do the trick:
match '/businesses/:permalink', :to => 'businesses#show`, :constraints => { :permalink => /.*\D/ }, :as => :business_permalink
The /.*\D/ forces the route to only match if :permalink contains at least one non-numeric character. You need the .* because route regexes are implicitly anchored at the beginning.
If you happen to be using MongoDB then your :id will probably be a hex BSON ID so you'd want to use /.*\H/ as your constraint and you'd want some way to ensure that your :permalink always contains at least one non-hex character.
Once all that's in place you can put your match "/businesses/:permalink" before your resources :businesses in routes.rb and everything should work fine. And routes are checked in the same order that they appear in routes.rb so you will want your match before your resources.
I would suggest using the friendly_id gem for creating permalink routes. This will handle most of the 'magic' for you in an easily reusable way.
Resources for the gem and railscast:
https://github.com/norman/friendly_id
http://railscasts.com/episodes/314-pretty-urls-with-friendlyid
I am trying to get something like this working on my Rails app:
match '/:language', :to => 'posts#search_result'
match '/:tag', :to => 'posts#search_result'
match '/:language/:tag', :to => 'posts#search_result'
I am using this search_result action to filter some posts depending of the language and the tag.
The problem is that sometimes :tag will be nil or :language will be nil; so i have these 3 possibilities when calling the action:
<%=link_to "Spanish", {:controller => 'posts', :action => 'search_result', :language => "spanish"} %>
<%= link_to "Spanish", {:controller => 'posts', :action => 'search_result', :language => "spanish", :tag => #tag} %>
<%=link_to "#{tag.name}", {:controller => 'posts', :action => 'search_result', :tag => #tag} %>
And I am expection to have URLs like:
/spanish (for the first case)
/spanish/rails (where rails is a tag, for the second case)
/rails (for the third case)
But right now i am getting the rigth thing for the first and third case, but for the second case i am getting:
/spanish?tag=rails
or again /spanish (depending on if i had selected a tag first or a language first).
I hope i explained myself right. Any idea??. thanks!.
The router cannot tell the difference between a :language and a :tag.
Just because your routes say "language" and "tag" when you are constructing your code in the view.. remember that in the html this has been translated into just plain ole URLs eg /spanish or /rails
the route then has to be figured out from this URL.
Now as I said, the router can't tell that a particular word is a language or a tag... and the plain-ole-URL doesn't have the word "tag" or "language" in it anymore... so your two routes here:
match '/:language', :to => 'posts#search_result'
match '/:tag', :to => 'posts#search_result'
are both the same kind of URL
Just a single token after the slash. Here are some examples that will match that route:
/greek
/spanish
/rails
/urdu
/whatever
They will all match the first route that matches on "a single token after a slash"... which means your router will match all of them to the "language" route and will never ever match the "/:tag" route, because it's already matched on the route above.
he he: it's all greek to the router ;)
Edit:
Hi, this is helping me a lot to understand how routing works.. but still i can't see it clear. I understand what you said, and so basically i understand i should do something like match '/tags/:tag to at least only route to posts#search_result the URLS starting by /tag .. what would be a solution??
yes, "/tags/:tag" would be clear and unambiguous, but if you want it to truly flexible in tag vs language you would be better served by the simple:
match '/posts/search', :to => 'posts#search_result'
which can use any of your link_to examples above to generate eg:
/posts/search?tag=rails
/posts/search?language=spanish
/posts/search?language=spanish&tag=rails
It's also far more clear what is being passed and why.
The description of the third URL is "I'm searching for a set of posts which have language = spanish and tag = rails"
Your URL should reflect the resource (which in this case is a set of posts) everything else is better done as query params.
Instead of defining /:language and /:language/:tag separately, define them together, with /:tag as an optional URI element.
match '/:language(/:tag)', :to => 'posts#search_result'
I believe routes are matched (and URIs generated from them) in the order that the routes are defined. You defined /:lang before you defined /:lang/:tag, so it matched /:lang and made :tag a GET parameter. I suppose you could optimize the ordering of your definitions, but I believe using the above syntax is the preferred method.
DocumentsController#common_query can handle multiple different request styles.
i.e. all docs in batch 4 or all docs tagged "happy"
I want a single route to make em pretty, so:
/documents/common_query?batch=4
/documents/common_query?tag=happy
become:
/documents/batch/4
/documents/tag/happy
So the end result is that #common_query is called but part of the url was used as the param name and part as it's value.
The second option, with two routes, is almost certainly the better way to go, because it will only match the kinds of URLs that you want to support, while the first option will also "match" URLs like /documents/foo/bar, which will likely cause your #common_query method to, at best, return a RecordNotFound (404) response. At worst, if you're not ready to not see any of your expected params, you'll get a 500 error instead...
Of course, if you start having a lot of variations, you end up with a lot of routes. And if you need to use them in combination, e.g., /documents/batch/4/tag/happy, then you'll need to use a wildcard route, and do the parameter processing in your controller. This might look something like:
map.connect 'documents/*specs', :controller => "documents_controller", :action => "common_query"
The various elements of the URL will be available your controller as params[:specs]. You might turn that into a find like so:
#items = Item.find(:all, :conditions => Hash[params[:specs]])
That Hash[] technique converts the one dimensional array of options into a key-value hash, which might be useful even if you're not feeding it directly to a find().
As a single route:
ActionController::Routing::Routes.draw do |map|
map.connect "documents/:type/:id", :controller => "documents_controller",
:action => "common_query"
end
Then params[:type] will either be "batch" or "tag", and params[:id] either "4" or "happy". You will have to make sure that other actions for the DocumentsController come before this in the routes because this will match any url that looks like "documents/*/*".
But why does it have to be a single route? You could use two routes like this:
map.with_options(:controller => "documents_controller",
:action => "common_query") do |c|
c.connect "documents/batch/:page", :type => "batch"
c.connect "documents/tag/:tag", :type => "tag"
end
which will have the same effect, but is more specific, so you wouldn't have to worry about the priority order of the routes.