Padrino route optional parameter - ruby

I am trying to do some tricks with routes. And I need to use optional route parameter in Padrino. I googled that solution for this are "()" parenthesis. I couldn't find in docs.
But when I try to use
get :sort, :with => [:order, :asc, '(:search)'] do
them, mustermann is giving me classic error for missing parameter
cannot expand with keys [:asc, :order], possible expansions: [:asc, :order, :search]
when I try to call
url(:sbirka, :sort, :order => "id", :asc => #asc)
I also tried different style
get :sort, "/:order/:asc/(:search)" do
with the same result
Please any suggestions how to do this?

Since Padrino is based on Sinatra, every routing pattern possible with Sinatra should be possible in Padrino as well. From Sinatra's excellent README file, introductory 'Routes' section:
Route patterns may have optional parameters
In your case, assuming :search is optional, I would try:
get '/:order/:asc/:search?' do
# your code
end

Related

What options does the asana api expect in tasks.find_by_id

I'm using the asana gem to access the asana api.
The client documentation for the class method find_by_id exposed on the tasks resource (i.e. Asana::Task) says that it will take a hash of options. As far as I can tell looking at the little code snippet, it should be the same options as are listed on https://asana.com/developers/documentation/getting-started/input-output-options#paths
However, when I do client.tasks.find_by_id(123456, :fields => "this.assignee.email"), for example, I get an ArgumentError: unknown keyword: fields.
What am I doing wrong? How should this work?
Also: it's unclear to me from the above page when I should be using this in my field specifications and when it is unnecessary.
EDIT: SOLVED!
The correct syntax is client.tasks.find_by_id(123456, :options => { :fields => "this.assignee.email" })
Both :fields and "fields" work.
Judging from the code in the ruby client library: https://github.com/Asana/ruby-asana/blob/423f76c14792bd4712c099161a14a10ce941b2d9/lib/asana/http_client.rb#L42
Perhaps something like client.tasks.find_by_id(123456, {"fields" => "this.assignee.email"}) might work. Could you try that?

Parameters in route are not resolved

I have this configuration in the controller in Padrino
MyProject::App.controllers do
get '/' do
handlebars :index
end
get :file, :with => :tokenId do
tokenId = params[:tokenId]
[extra logic]
end
end
GET / works.
GET /file/abc doesn't.
GET /file/:tokenId works!
It looks like :token is not recognized as a parameter placeholder in the route definition.
I've tried
get "/file/:tokenId"
too but with no luck.
I can't find any information on any similar issue, anybody can help? Happy to add more information if needed.
Okay so I am unsure why the change made a difference but camelCase is generally considered poor syntax for variables in ruby.(Padrino may be calling a method such as underscore on your variable i.e.
"tokenID".underscore.to_sym
#=>:token_id
Using underscored_variables instead. (e.g. :tokenID becomes :token_id. This structure also allows for interacting with databases in a nicer way as well since your columns will have names such as token_id not tokenID.
There are uses for camelCasing in ruby and rails such as class naming and generators but trying keep all local and instance variables in lowercase underscore format.
I don't do much work in padrino so I am not 100% sure why this change helped but I am glad I could help.

How can I create a Rails 3 route that will match all requests and direct to one resource / page?

I have a rails app (Rails 3.0) that I need to temporarily take out of service. While this is in effect, I want to create a new route that will direct all requests to a single piece of static content. I have a controller set up to serve my static pages.
I tried something like this:
match '*' => 'content#holding'
and
match '*/*' => 'content#holding'
to match a wildcard route as described here:Rails 3 route globbing without success.
This is probably a really simple answer, but I couldn't figure it out.
/EDIT/
Forgot to mention that I did have this rule at the very top of my routes.rb file.
Rails needs to bind the url parameters to a variable, try this:
match '*foo' => 'content#holding'
If you also want to match /, use parenthesis to specify that foo is optional:
match '(*foo)' => 'content#holding'
I did this just yesterday and first came up with the solution that klochner shows.
What I didn't like about this is the fact that whatever you enter in the URL, stays there after the page loads, and since I wanted a catch all route that redirects to my root_url, that wasn't very appealing.
What I came up with looks like this:
# in routes.rb
get '*ignore_me' => 'site#unknown_url'
# in SiteController
def unknown_url
redirect_to root_url
end
Remember to stick the routes entry at the very bottom of the file!
EDIT:
As Nick pointed out, you can also do the redirect directly in the routes file.
I ran into something like this where I had domain names as a parameter in my route:
match '/:domain_name/', :to => 'sitedetails#index', :domain_name => /.*/, :as =>'sitedetails'
The key piece to this was the /.*/ which was a wildcard for pretty much anything. So maybe you could do something like:
match '/:path/', :to => 'content#holding', :path=> /.*/, :as =>'whatever_you_want'
Where in "routes.rb" is this line located?
To have priority over other routes, it has to be placed first.
As an alternative, you can look into this: http://onehub.com/blog/posts/rails-maintenance-pages-done-right/
Or this: Rails: admin-only maintenance mode

Trouble creating custom routes in Ruby on Rails 3.1

I can't seem to set up a custom URL. All the RESTful routes work fine, but I can't figure out how to simply add /:unique_url to the existing routes, which I create in the model (a simple 4 character random string) and will serve as the "permalink" of sorts.
Routes.rb
resources :treks
match ':unique_url' => 'treks#mobile'
Controller
.
.
def mobile
#trek = trek.find(params[:id])
end
Is this because I'm trying to define a custom action on an existing resource? Can I not create custom methods on the same controller as one with a resource?
By the way, when I change routes.rb to match 'treks/:id/:unique_url' => treks#mobile it works fine, but I just want the url to simply be /:unique_url
Update It seems like find_by_[parameter] is the way to go...
I've been playing in console and I can't seem to get any methods to come forward...I can run Trek.last.fullname for example, but cannot run #trek = Trek.last...and then call...#trek.lastname for example. Any clues why? I think this is my issue.
So is there a field on Trek which stores its unique url? If so you should be doing something like this:
#trek = Trek.find_by_url(params[:unique_url])
trek.find_by_unique_url( params[:unique_url] ) # should do the trick
#pruett no, the find_by_XXX methods are generated on-the-fly via Ruby's method_missing call! So instead of XXX you can use any of the attributes which you defined in a model.
You can even go as far as listing multiple attributes, such as:
find_by_name_and_unique_url( the_name, the_unigue_url)
Check these pages:
http://guides.rubyonrails.org/active_record_querying.html
http://m.onkey.org/active-record-query-interface
if you get a undefined method ... for nil:NilClass , it means that the object you are trying to call that method on does not exist, e.g. is nil.
You probably just missed to put an if-statement before that line to make sure the object is non-nil
Hmm. I usually would do something like this:
map.connect "/:unique_url", :controller => "treks", :action => "mobile"
Then in that controller the ID isn't going to be applicable.. you'd need to change it to something like this:
def mobile
#trek = trek.find_by_unique_url(params[:unique_url])
end
(that's if unique_url is the column to search under)

No route matches controller

In my rails 3 app, I have a route which shows up as follows while calling rake routes:
topic_snippets GET /topics/:topic_id/snippets(.:format) {:action=>"index", :controller=>"snippets"}
In routes.rb
resources :topics do
member do
get 'get_topics'
end
resources :snippets, :only => [:index]
end
In my view, I am referencing this route as follows (where #name = "snippets"):
<%= send("topic_#{#name}_path")%>
When executing the previous line, I get the following routing error, not sure why:
No route matches {:controller=>"snippets"}
Update: I found another question whose responses seem to imply that the above should work: Dynamically construct RESTful route using Rails
Thanks
Anand
OK, I found it - Ryan's comment provided the clue.
I wasnt passing in #topic, which is required. If I remove #topic, it tries to just get at /snippets/ which doesn't have a route. I set #topic to a valid topic before calling this line and it works. Thanks, Ryan!
Have you tried
<%= send(eval("topic_#{#name}_path"), #topic)%>

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