How to make a button ?

rubyonrails-talk
1

I made a button using “<%= button_to “New”, :action => “click” %>” and have a method in controller as:

def click

end

In router file i had added resources as " resources: posts" .In app/view/posts/click.html.erb file holds simple hello message,but when i click on the button it says:

No route matches {:controller=>“posts”, :action=>“click”}.

John

2

resources: posts just gives you the standard routes. If you want a non-standard one you have to add it yourself. See the Rails Guide on Routing for more information. You can type rake routes to find what routes are defined. If you do that you will find that posts/click is not there at the moment, so you get the error.

Colin

3

Click isn't one of the REST states, so you will have to add that to your routes. In Rails 2.3, this looks like this:

map.resources :posts, :member => { :click => :get }

In Rails 3, you would do:

resources :posts do    member do      get 'click'    end end

Walter

4

I have just realised that the OP here is John Shelfer who has already been advised to study that guide in order to understand routing. John, assuming that you did study that guide, please ask for clarification of which bits you did not understand. It will be better to get a good understanding rather than just have those here help you out each time you have a trivial problem.

Colin

5

The beauty of email filters....

6

I have rails 3.0.7.Added a route as above but still line “<%= button_to “New”, :action => “click” %>” generate the error .

“No route matches {:controller=>“posts”, :action=>“click”}”

John

7

That is the result of following advice without understanding that advice. The above syntax is explained in section 2.9.1 of the rails guide on routing and expects an id to be passed, which is not what you want.

As has been stated several times you can use rake routes to see what routes you have declared, and you will see that posts/click is not one of them.

If you just want a static route (which I think you do) then have a look at section 3.3

This time make sure that rake routes shows the result you expect. If you still cannot get it to work post what you have tried and what you see in rake routes.

Colin

8

Click isn’t one of the REST states, so you will have to add that to your

routes. In Rails 2.3, this looks like this:

map.resources :posts, :member => { :click => :get }

In Rails 3, you would do:

resources :posts do

member do

get ‘click’

end

end

    I have rails 3.0.7.Added a route as above but still line "<%=

button_to “New”, :action => “click” %>" generate the error .

“No route matches {:controller=>“posts”, :action=>“click”}”

That is the result of following advice without understanding that

advice. The above syntax is explained in section 2.9.1 of the rails

guide on routing and expects an id to be passed, which is not what you

want.

As has been stated several times you can use rake routes to see what

routes you have declared, and you will see that posts/click is not one

of them. rake routes gave and following and it seems posts/click is there.

posts_index GET /posts/index(.:format) {:action=>“index”, :controller=>“posts”}

click_post GET /posts/:id/click(.:format) {:action=>“click”, :controller=>“posts”}

posts GET /posts(.:format) {:action=>“index”, :controller=>“posts”}

POST /posts(.:format) {:action=>“create”, :controller=>“posts”}

new_post GET /posts/new(.:format) {:action=>“new”, :controller=>“posts”}

edit_post GET /posts/:id/edit(.:format) {:action=>“edit”, :controller=>“posts”}

post GET /posts/:id(.:format) {:action=>“show”, :controller=>“posts”}

PUT /posts/:id(.:format) {:action=>“update”, :controller=>“posts”}

DELETE /posts/:id(.:format) {:action=>“destroy”, :controller=>“posts”}

If you just want a static route (which I think you do) then have a

look at section 3.3 match ‘:posts/:click’ didn’t work as per tutorial there.

This time make sure that rake routes shows the result you expect. If

you still cannot get it to work post what you have tried and what you

see in rake routes.

I just want a simple button at click which will show the Hello message in /app/views/posts/click.html.erb

John

9

> > >> >> Click isn't one of the REST states, so you will have to add that to >> your >> routes. In Rails 2.3, this looks like this: >> >> map.resources :posts, :member => { :click => :get } >> >> In Rails 3, you would do: >> >> resources :posts do >> member do >> get 'click' >> end >> end > > I have rails 3.0.7.Added a route as above but still line "<%= > button_to "New", :action => "click" %>" generate the error . > "No route matches {:controller=>"posts", :action=>"click"}"

That is the result of following advice without understanding that advice. The above syntax is explained in section 2.9.1 of the rails guide on routing and expects an id to be passed, which is not what you want.

As has been stated several times you can use rake routes to see what routes you have declared, and you will see that posts/click is not one of them.

 rake routes gave and following and it seems posts/click is there\.
  posts\_index GET    /posts/index\(\.:format\)     \{:action=&gt;&quot;index&quot;,

:controller=>"posts"} click_post GET /posts/:id/click(.:format) {:action=>"click", :controller=>"posts"}

Note that it has an id in there, as I said.

  posts GET    /posts\(\.:format\)           \{:action=&gt;&quot;index&quot;,

:controller=>"posts"} POST /posts(.:format) {:action=>"create", :controller=>"posts"} new_post GET /posts/new(.:format) {:action=>"new", :controller=>"posts"} edit_post GET /posts/:id/edit(.:format) {:action=>"edit", :controller=>"posts"} post GET /posts/:id(.:format) {:action=>"show", :controller=>"posts"} PUT /posts/:id(.:format) {:action=>"update", :controller=>"posts"} DELETE /posts/:id(.:format) {:action=>"destroy", :controller=>"posts"}

If you just want a static route (which I think you do) then have a look at section 3.3

   match &#39;:posts/:click&#39;         didn&#39;t work as per tutorial there\.

Once again you have taken advice (in this case mine) without understanding what is being suggested. I should have directed you to section 3.7. If you had read and understood the guide you would have seen this and not been led astray by my bad advice.

Colin

10

After reading routing tutorial ,made some changes.Button is created using “<%= button_to “New”, :action => “click” %>” .When i clicked the button error is: No routes matches “/posts/click”

In router.rb ,i added a route to click action of controller as but error is not resolved yet.

Check::Application.routes.draw do

get “posts/index”

resources :posts do

end

get ‘posts/click’

The priority is based upon order of creation:

first created → highest priority.

Sample of regular route:

match ‘products/:id’ => ‘catalog#view’

Keep in mind you can assign values other than :controller and :action

Sample of named route:

match ‘products/:id/purchase’ => ‘catalog#purchase’, :as => :purchase

This route can be invoked with purchase_url(:id => product.id)

Sample resource route (maps HTTP verbs to controller actions automatically):

resources :products

Sample resource rwith_user/:uoute with options:

resources :products do

member do

get ‘short’

post ‘toggle’

end

11

map.root :controller => "controller_name", :action => "Index"

  map.connect ':controller/:action/:id'   map.connect ':controller/:action/:id.:format'

Did you try this?

12

ActionController::Routing::Routes.draw do |map|

map.root :controller => "controller_name", :action => "Index" map.connect ':controller/:action/:id' map.connect ':controller/:action/:id.:format'

end

Did you try this code?

13

Once again I have to ask whether the route appears when you do rake routes Your first action should be to do that and make sure the route appears there. If it does not then experiment with routes.rb until it does appear in rake routes.

Did you remember to restart the server after editing routes.rb?

Colin

14

John