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John shelfer

2011-May-20 14:22 UTC

undefined method `posts_path''

I tried to generate a form it says "undefined method `posts_path''
for
#<#<Class:0xb6784798>:0xb67817f0>"
 The following code at line number 2 gives the error.


<%= link_to ''New Post''%>
<%= form_for(@post) do |f| %>
 <div class="field">
    <%= f.label :name %><br />
    <%= f.text_field :name %>
  </div>
  <div class="field">
    <%= f.label :title %><br />
    <%= f.text_field :title %>
  </div>
  <div class="field">
    <%= f.label :content %><br />
    <%= f.text_area :content %>
  </div>
  <div class="actions">
    <%= f.submit %>
  </div>
<% end %>


John

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Walter Davis

2011-May-20 14:34 UTC

head link

Re: undefined method `posts_path''

On May 20, 2011, at 10:22 AM, John shelfer wrote:
> I tried to generate a form it says "undefined method
`posts_path'' for
> #<#<Class:0xb6784798>:0xb67817f0>"
> The following code at line number 2 gives the error.
>
>
> <%= link_to ''New Post''%>
> <%= form_for(@post) do |f| %>
> <div class="field">
>    <%= f.label :name %><br />
>    <%= f.text_field :name %>
>  </div>
>  <div class="field">
>    <%= f.label :title %><br />
>    <%= f.text_field :title %>
>  </div>
>  <div class="field">
>    <%= f.label :content %><br />
>    <%= f.text_area :content %>
>  </div>
>  <div class="actions">
>    <%= f.submit %>
>  </div>
> <% end %>
>
>
> John
Please run rake routes and post that here, or just read through it and  
see whether posts_path is listed. What does your routes.rb look like?

Walter

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Jatin kumar

2011-May-20 14:35 UTC

head link

Re: undefined method `posts_path''

Check your routes file for the routes for *post*.
If you scaffolded the model, then there should be
resources :post
in your routes.rb file.

If the above is not there, just add the line and you will get the routes for
CRUD automatically.

On Fri, May 20, 2011 at 2:22 PM, John shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>wrote:
> I tried to generate a form it says "undefined method
`posts_path'' for
> #<#<Class:0xb6784798>:0xb67817f0>"
>  The following code at line number 2 gives the error.
>
>
> <%= link_to ''New Post''%>
> <%= form_for(@post) do |f| %>
>  <div class="field">
>    <%= f.label :name %><br />
>    <%= f.text_field :name %>
>  </div>
>  <div class="field">
>    <%= f.label :title %><br />
>    <%= f.text_field :title %>
>  </div>
>  <div class="field">
>    <%= f.label :content %><br />
>    <%= f.text_area :content %>
>  </div>
>  <div class="actions">
>    <%= f.submit %>
>  </div>
> <% end %>
>
>
> John
>
> --
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>
>
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John shelfer

2011-May-21 04:18 UTC

head link

Re: undefined method `posts_path''

> Please run rake routes and post that here  rake routes shows
  posts_index GET /posts/index(.:format)
{:action=>"index", :controller=>"posts"}

What does your routes.rb look like?
router.rb file looks like:

Check::Application.routes.draw do
  get "posts/index"

  # 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 route with options:
  #   resources :products do
  #     member do
  #       get ''short''
  #       post ''toggle''
  #     end
  #
  #     collection do
  #       get ''sold''
  #     end
  #   end

  # Sample resource route with sub-resources:
  #   resources :products do
  #     resources :comments, :sales
  #     resource :seller
  #   end

  # Sample resource route with more complex sub-resources
  #   resources :products do
  #     resources :comments
  #     resources :sales do
  #       get ''recent'', :on => :collection
  #     end
  #   end

  # Sample resource route within a namespace:
  #   namespace :admin do
  #     # Directs /admin/products/* to Admin::ProductsController
  #     # (app/controllers/admin/products_controller.rb)
  #     resources :products
  #   end

  # You can have the root of your site routed with "root"
  # just remember to delete public/index.html.
  # root :to => "welcome#index"

  # See how all your routes lay out with "rake routes"

  # This is a legacy wild controller route that''s not recommended for
RESTful applications.
  # Note: This route will make all actions in every controller
accessible via GET requests.
  # match '':controller(/:action(/:id(.:format)))''
end


John

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Colin Law

2011-May-21 08:05 UTC

head link

Re: Re: undefined method `posts_path''

On 21 May 2011 05:18, John shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:>
>> Please run rake routes and post that here
>  rake routes shows
>  posts_index GET /posts/index(.:format)
> {:action=>"index", :controller=>"posts"}
>
> What does your routes.rb look like?
> router.rb file looks like:
>
> Check::Application.routes.draw do
>  get "posts/index"
> ...
Have a look at the Rails Guide on Routing to see how routing works.
Read it through carefully and make sure you understand it.  Then you
will easily answer your question yourself.

Colin

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john shelfer

2011-May-21 09:00 UTC

head link

Re: Re: undefined method `posts_path''

On Sat, May 21, 2011 at 4:05 AM, Colin Law
<clanlaw-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
> On 21 May 2011 05:18, John shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >
> >> Please run rake routes and post that here
> >  rake routes shows
> >  posts_index GET /posts/index(.:format)
> > {:action=>"index", :controller=>"posts"}
> >
> > What does your routes.rb look like?
> > router.rb file looks like:
> >
> > Check::Application.routes.draw do
> >  get "posts/index"
> > ...
>
> Have a look at the Rails Guide on Routing to see how routing works.
> Read it through carefully and make sure you understand it.  Then you
> will easily answer your question yourself.
>    Ok Colin.I will.But still can you help now to resolve it?

     John

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Colin Law

2011-May-21 09:13 UTC

head link

Re: Re: undefined method `posts_path''

On 21 May 2011 10:00, john shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:>
>
> On Sat, May 21, 2011 at 4:05 AM, Colin Law
<clanlaw-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
>>
>> On 21 May 2011 05:18, John shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> >
>> >> Please run rake routes and post that here
>> >  rake routes shows
>> >  posts_index GET /posts/index(.:format)
>> > {:action=>"index", :controller=>"posts"}
>> >
>> > What does your routes.rb look like?
>> > router.rb file looks like:
>> >
>> > Check::Application.routes.draw do
>> >  get "posts/index"
>> > ...
>>
>> Have a look at the Rails Guide on Routing to see how routing works.
>> Read it through carefully and make sure you understand it.  Then you
>> will easily answer your question yourself.
>
>     Ok Colin.I will.But still can you help now to resolve it?
>      John
Did you try Jatin Kumar''s suggestion?

Colin

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John shelfer

2011-May-21 15:22 UTC

head link

Re: undefined method `posts_path''

On May 21, 5:13 am, Colin Law
<clan...-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
wrote:> On 21 May 2011 10:00, john shelfer
<johnsshel...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
>
>
>
>
>
>
>
>
>
>
> > On Sat, May 21, 2011 at 4:05 AM, Colin Law
<clan...-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
>
> >> On 21 May 2011 05:18, John shelfer
<johnsshel...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> >> >> Please run rake routes and post that here
> >> >  rake routes shows
> >> >  posts_index GET /posts/index(.:format)
> >> > {:action=>"index",
:controller=>"posts"}
>
> >> > What does your routes.rb look like?
> >> > router.rb file looks like:
>
> >> > Check::Application.routes.draw do
> >> >  get "posts/index"
> >> > ...
>
> >> Have a look at the Rails Guide on Routing to see how routing
works.
> >> Read it through carefully and make sure you understand it.  Then
you
> >> will easily answer your question yourself.
>
> >     Ok Colin.I will.But still can you help now to resolve it?
> >      John
>
> Did you try Jatin Kumar''s suggestion?   yes i added a resource and now router.rb look likes but same issue
is still there

Check::Application.routes.draw do
  get "posts/index"
 resources :post
  # 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 route with options:
  #   resources :products do
  #     member do
  #       get ''short''
  #       post ''toggle''
  #     end
  #
  #     collection do
  #       get ''sold''
  #     end
  #   end

  # Sample resource route with sub-resources:
  #   resources :products do
  #     resources :comments, :sales
  #     resource :seller
  #   end

  # Sample resource route with more complex sub-resources
  #   resources :products do
  #     resources :comments
  #     resources :sales do
  #       get ''recent'', :on => :collection
  #     end
  #   end

  # Sample resource route within a namespace:
  #   namespace :admin do
  #     # Directs /admin/products/* to Admin::ProductsController
  #     # (app/controllers/admin/products_controller.rb)
  #     resources :products
  #   end

  # You can have the root of your site routed with "root"
  # just remember to delete public/index.html.
  # root :to => "welcome#index"

  # See how all your routes lay out with "rake routes"

  # This is a legacy wild controller route that''s not recommended for
RESTful applications.
  # Note: This route will make all actions in every controller
accessible via GET requests.
  # match '':controller(/:action(/:id(.:format)))''
end

John

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Frederick Cheung

2011-May-21 18:45 UTC

head link

Re: undefined method `posts_path''

On May 21, 4:22 pm, John shelfer
<johnsshel...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> On May 21, 5:13 am, Colin Law
<clan...-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
>
>    yes i added a resource and now router.rb look likes but same issue
> is still there
>
> Check::Application.routes.draw do
>   get "posts/index"
>  resources :post
resources should be plural, ie resources :posts

Fred

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John shelfer

2011-May-22 06:41 UTC

head link

Re: undefined method `posts_path''

On May 21, 2:45 pm, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> On May 21, 4:22 pm, John shelfer
<johnsshel...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > On May 21, 5:13 am, Colin Law
<clan...-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
>
> >    yes i added a resource and now router.rb look likes but same issue
> > is still there
>
> > Check::Application.routes.draw do
> >   get "posts/index"
> >  resources :post
>
> resources should be plural, ie resources :posts      Thank you very much.It worked.But now i got another error in
following file ,it says

"undefined method `name'' for #<Post id: nil, created_at: nil,
updated_at: nil>"

John

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Colin Law

2011-May-22 06:55 UTC

head link

Re: Re: undefined method `posts_path''

On 22 May 2011 07:41, John shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:>
>
> On May 21, 2:45 pm, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> wrote:
>> On May 21, 4:22 pm, John shelfer
<johnsshel...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>>
>> > On May 21, 5:13 am, Colin Law
<clan...-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
>>
>> >    yes i added a resource and now router.rb look likes but same
issue
>> > is still there
>>
>> > Check::Application.routes.draw do
>> >   get "posts/index"
>> >  resources :post
>>
>> resources should be plural, ie resources :posts
>      Thank you very much.It worked.But now i got another error in
> following file ,it says
>
> "undefined method `name'' for #<Post id: nil, created_at:
nil,
> updated_at: nil>"
Look at the error and try and work out what it means.  There should
also be an indication of which line generated the error.  It says
undefined method ''name'', so that suggests you are calling the
method
name for something.  It tells you that the object you are calling it
on is a Post object.  Have a look at your code, can you see where the
error is being generated?  Assuming that you can see that you are
calling name on a Post object, does Post have a method called name?
Assuming that Post is an ActiveRecord model then is the posts table
supposed to have a name column?  If so does it have such a column?

Colin

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John shelfer

2011-May-22 07:09 UTC

head link

Re: undefined method `posts_path''

On May 22, 2:55 am, Colin Law
<clan...-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
wrote:> On 22 May 2011 07:41, John shelfer
<johnsshel...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
>
>
>
>
>
>
>
>
>
>
> > On May 21, 2:45 pm, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> > wrote:
> >> On May 21, 4:22 pm, John shelfer
<johnsshel...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> >> > On May 21, 5:13 am, Colin Law
<clan...-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
>
> >> >    yes i added a resource and now router.rb look likes but
same issue
> >> > is still there
>
> >> > Check::Application.routes.draw do
> >> >   get "posts/index"
> >> >  resources :post
>
> >> resources should be plural, ie resources :posts
> >      Thank you very much.It worked.But now i got another error in
> > following file ,it says
>
> > "undefined method `name'' for #<Post id: nil,
created_at: nil,
> > updated_at: nil>"
>
> Look at the error and try and work out what it means.  There should
> also be an indication of which line generated the error.    Error is generated at link 8 in following code.


<%= link_to ''New Post'', new_post_path%>
<%= form_for(@post) do |f| %>


  <div class="field">
    <%= f.label :name %><br />
    <%= f.text_field :name %>
  </div>
  <div class="field">
    <%= f.label :title %><br />
    <%= f.text_field :title %>
  </div>
  <div class="field">
    <%= f.label :content %><br />
    <%= f.text_area :content %>
  </div>
  <div class="actions">
    <%= f.submit %>
  </div>
<% end %>



   Posts_controller.rb file looks like:
 class PostsController < ApplicationController
  def try
  @post = Post.new
  end
def create
@post = Post.new(params[:post])
respond_to do |format|
    end
  end
end


John

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Colin Law

2011-May-22 07:15 UTC

head link

Re: Re: undefined method `posts_path''

On 22 May 2011 08:09, John shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:>
>
> On May 22, 2:55 am, Colin Law
<clan...-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
>> On 22 May 2011 07:41, John shelfer
<johnsshel...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>>> ...
>> > "undefined method `name'' for #<Post id: nil,
created_at: nil,
>> > updated_at: nil>"
>>
>> Look at the error and try and work out what it means.  There should
>> also be an indication of which line generated the error.
>    Error is generated at link 8 in following code.
>
>
> <%= link_to ''New Post'', new_post_path%>
> <%= form_for(@post) do |f| %>
>
>
>  <div class="field">
>    <%= f.label :name %><br />
>    <%= f.text_field :name %>
Here you are asking to display (and allow entry) of @post.name,
whereas the error suggests that Post does not have a method
''name''.

Colin

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John shelfer

2011-May-22 16:23 UTC

head link

Re: undefined method `posts_path''

On May 22, 3:15 am, Colin Law
<clan...-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
wrote:> On 22 May 2011 08:09, John shelfer
<johnsshel...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
>
>
>
>
>
>
>
>
>
>
> > On May 22, 2:55 am, Colin Law
<clan...-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
> >> On 22 May 2011 07:41, John shelfer
<johnsshel...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >>> ...
> >> > "undefined method `name'' for #<Post id: nil,
created_at: nil,
> >> > updated_at: nil>"
>
> >> Look at the error and try and work out what it means.  There
should
> >> also be an indication of which line generated the error.
> >    Error is generated at link 8 in following code.
>
> > <%= link_to ''New Post'', new_post_path%>
> > <%= form_for(@post) do |f| %>
>
> >  <div class="field">
> >    <%= f.label :name %><br />
> >    <%= f.text_field :name %>
>
> Here you are asking to display (and allow entry) of @post.name,
> whereas the error suggests that Post does not have a method
''name''. ''name'' is field that i want to generate in form.Let me tell
you i
have total 3 files

1)posts_controller.rb(code is above)

2)try.html.erb(/view/posts)(code is above)

3)post.rb(Model)(Empty)

John

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Jatin kumar

2011-May-22 16:57 UTC

head link

Re: Re: undefined method `posts_path''

You are confusing things a lot.
Answer this question first:
Did you scaffold the model or you are adding the files one by one writing
the code by hand.

1. If you did scaffold, I don''t see a problem coming anywhere.
2. If you didn''t scaffold, then go for Colin''s suggestion and
read the
guides, you will understand how Rails works.
AND read the guides rightnow, before you get troubled by another problem.

As of the current problem that you are facing, do this:
1. Look up the database table for posts, and see if you have a column named
''name'' in there. If not, what went wrong.
2. I am quite sure, 1st would fail. Now, look up your post.rb model file and
see if there is
attr_accessible : name
in your model file.

On Sun, May 22, 2011 at 9:53 PM, John shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>wrote:
>
>
> On May 22, 3:15 am, Colin Law
<clan...-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
> > On 22 May 2011 08:09, John shelfer
<johnsshel...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > > On May 22, 2:55 am, Colin Law
<clan...-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
> > >> On 22 May 2011 07:41, John shelfer
<johnsshel...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > >>> ...
> > >> > "undefined method `name'' for #<Post id:
nil, created_at: nil,
> > >> > updated_at: nil>"
> >
> > >> Look at the error and try and work out what it means.  There
should
> > >> also be an indication of which line generated the error.
> > >    Error is generated at link 8 in following code.
> >
> > > <%= link_to ''New Post'', new_post_path%>
> > > <%= form_for(@post) do |f| %>
> >
> > >  <div class="field">
> > >    <%= f.label :name %><br />
> > >    <%= f.text_field :name %>
> >
> > Here you are asking to display (and allow entry) of @post.name,
> > whereas the error suggests that Post does not have a method
''name''.
>  ''name'' is field that i want to generate in form.Let me
tell you i
> have total 3 files
>
> 1)posts_controller.rb(code is above)
>
> 2)try.html.erb(/view/posts)(code is above)
>
> 3)post.rb(Model)(Empty)
>
> John
>
> --
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>
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John shelfer

2011-May-23 01:59 UTC

head link

Re: undefined method `posts_path''

On May 22, 12:57 pm, Jatin kumar
<jatinkumar.n...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> You are confusing things a lot.
> Answer this question first:
> Did you scaffold the model or you are adding the files one by one writing
> the code by hand. I didnt scaffold.I am adding files one by one.
> 1. If you did scaffold, I don''t see a problem coming anywhere.
> 2. If you didn''t scaffold, then go for Colin''s suggestion
and read the
> guides, you will understand how Rails works.
> AND read the guides rightnow, before you get troubled by another problem.
>
> As of the current problem that you are facing, do this:
> 1. Look up the database table for posts, and see if you have a column named
> ''name'' in there. If not, what went wrong. In ''posts'' table there is no column for name,title and
content.> 2. I am quite sure, 1st would fail. Now, look up your post.rb model file
and
> see if there is
> attr_accessible : name
> in your model file.      It is not there,but after adding it there ,error didnt resolve.

John

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Colin Law

2011-May-23 07:04 UTC

head link

Re: Re: undefined method `posts_path''

On 23 May 2011 02:59, John shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:>
>
> On May 22, 12:57 pm, Jatin kumar
<jatinkumar.n...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> You are confusing things a lot.
>> Answer this question first:
>> Did you scaffold the model or you are adding the files one by one
writing
>> the code by hand.
>  I didnt scaffold.I am adding files one by one.
>
>> 1. If you did scaffold, I don''t see a problem coming anywhere.
>> 2. If you didn''t scaffold, then go for Colin''s
suggestion and read the
>> guides, you will understand how Rails works.
>> AND read the guides rightnow, before you get troubled by another
problem.
>>
>> As of the current problem that you are facing, do this:
>> 1. Look up the database table for posts, and see if you have a column
named
>> ''name'' in there. If not, what went wrong.
>  In ''posts'' table there is no column for name,title and
content.
I suggested before reading the Rails Guide on Routing.  I also suggest
that you read the Getting Started guide and then the others.  Also
work through a good tutorial (make sure it is for the version of Rails
that you are using).  railstutorial.org is a good free to use online
tutorial.  The reason is that you are missing some fundamental
understanding of how Rails works.  When you do form_for(@post) and
then f.text_field :name rails expects @post to have a method
''name'' to
get the initial value for display.  Often this will come automatically
from the fact that the posts table will contain a column
''name''.
Since you have no such column it complains that Post has no method
''name''.

Colin

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john shelfer

2011-May-23 10:20 UTC

head link

Re: Re: undefined method `posts_path''

On Mon, May 23, 2011 at 3:04 AM, Colin Law
<clanlaw-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
> On 23 May 2011 02:59, John shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >
> >
> > On May 22, 12:57 pm, Jatin kumar
<jatinkumar.n...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >> You are confusing things a lot.
> >> Answer this question first:
> >> Did you scaffold the model or you are adding the files one by one
> writing
> >> the code by hand.
> >  I didnt scaffold.I am adding files one by one.
> >
> >> 1. If you did scaffold, I don''t see a problem coming
anywhere.
> >> 2. If you didn''t scaffold, then go for Colin''s
suggestion and read the
> >> guides, you will understand how Rails works.
> >> AND read the guides rightnow, before you get troubled by another
> problem.
> >>
> >> As of the current problem that you are facing, do this:
> >> 1. Look up the database table for posts, and see if you have a
column
> named
> >> ''name'' in there. If not, what went wrong.
> >  In ''posts'' table there is no column for name,title
and content.
>
> I suggested before reading the Rails Guide on Routing.  I also suggest
> that you read the Getting Started guide and then the others.  Also
> work through a good tutorial (make sure it is for the version of Rails
> that you are using).  railstutorial.org is a good free to use online
> tutorial.
          Thank you very much.I will read it now.
>  The reason is that you are missing some fundamental
> understanding of how Rails works.  When you do form_for(@post) and
> then f.text_field :name rails expects @post to have a method
''name'' to
> get the initial value for display.  Often this will come automatically
> from the fact that the posts table will contain a column
''name''.
> Since you have no such column it complains that Post has no method
>      Because i am not doing scaffold,so can i add column values
      manually to table ''posts'' OR changes should be made in
      Model.

      John

    John
> ''name''.
>
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Colin Law

2011-May-23 10:38 UTC

head link

Re: Re: undefined method `posts_path''

On 23 May 2011 11:20, john shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:>
>
> On Mon, May 23, 2011 at 3:04 AM, Colin Law
<clanlaw-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
>>
>> On 23 May 2011 02:59, John shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> >
>> >
>> > On May 22, 12:57 pm, Jatin kumar
<jatinkumar.n...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> >> You are confusing things a lot.
>> >> Answer this question first:
>> >> Did you scaffold the model or you are adding the files one by
one
>> >> writing
>> >> the code by hand.
>> >  I didnt scaffold.I am adding files one by one.
>> >
>> >> 1. If you did scaffold, I don''t see a problem coming
anywhere.
>> >> 2. If you didn''t scaffold, then go for
Colin''s suggestion and read the
>> >> guides, you will understand how Rails works.
>> >> AND read the guides rightnow, before you get troubled by
another
>> >> problem.
>> >>
>> >> As of the current problem that you are facing, do this:
>> >> 1. Look up the database table for posts, and see if you have a
column
>> >> named
>> >> ''name'' in there. If not, what went wrong.
>> >  In ''posts'' table there is no column for
name,title and content.
>>
>> I suggested before reading the Rails Guide on Routing.  I also suggest
>> that you read the Getting Started guide and then the others.  Also
>> work through a good tutorial (make sure it is for the version of Rails
>> that you are using).  railstutorial.org is a good free to use online
>> tutorial.
>
>           Thank you very much.I will read it now.
>>
>>  The reason is that you are missing some fundamental
>> understanding of how Rails works.  When you do form_for(@post) and
>> then f.text_field :name rails expects @post to have a method
''name'' to
>> get the initial value for display.  Often this will come automatically
>> from the fact that the posts table will contain a column
''name''.
>> Since you have no such column it complains that Post has no method
>
>       Because i am not doing scaffold,so can i add column values
>       manually to table ''posts'' OR changes should be made
in
>       Model.
You can add them using migrations.  railstutorial.org will show you
how to do that.

Colin

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john shelfer

2011-May-23 10:50 UTC

head link

Re: Re: undefined method `posts_path''

On Mon, May 23, 2011 at 6:38 AM, Colin Law
<clanlaw-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
> On 23 May 2011 11:20, john shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >
> >
> > On Mon, May 23, 2011 at 3:04 AM, Colin Law
<clanlaw-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
> wrote:
> >>
> >> On 23 May 2011 02:59, John shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >> >
> >> >
> >> > On May 22, 12:57 pm, Jatin kumar
<jatinkumar.n...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >> >> You are confusing things a lot.
> >> >> Answer this question first:
> >> >> Did you scaffold the model or you are adding the files
one by one
> >> >> writing
> >> >> the code by hand.
> >> >  I didnt scaffold.I am adding files one by one.
> >> >
> >> >> 1. If you did scaffold, I don''t see a problem
coming anywhere.
> >> >> 2. If you didn''t scaffold, then go for
Colin''s suggestion and read
> the
> >> >> guides, you will understand how Rails works.
> >> >> AND read the guides rightnow, before you get troubled by
another
> >> >> problem.
> >> >>
> >> >> As of the current problem that you are facing, do this:
> >> >> 1. Look up the database table for posts, and see if you
have a column
> >> >> named
> >> >> ''name'' in there. If not, what went
wrong.
> >> >  In ''posts'' table there is no column for
name,title and content.
> >>
> >> I suggested before reading the Rails Guide on Routing.  I also
suggest
> >> that you read the Getting Started guide and then the others.  Also
> >> work through a good tutorial (make sure it is for the version of
Rails
> >> that you are using).  railstutorial.org is a good free to use
online
> >> tutorial.
> >
> >           Thank you very much.I will read it now.
> >>
> >>  The reason is that you are missing some fundamental
> >> understanding of how Rails works.  When you do form_for(@post) and
> >> then f.text_field :name rails expects @post to have a method
''name'' to
> >> get the initial value for display.  Often this will come
automatically
> >> from the fact that the posts table will contain a column
''name''.
> >> Since you have no such column it complains that Post has no method
> >
> >       Because i am not doing scaffold,so can i add column values
> >       manually to table ''posts'' OR changes should be
made in
> >       Model.
>
> You can add them using migrations.  railstutorial.org will show you
> how to do that.
>        I created migration  and added  following code inside and then did
> "rake db:migrate" but still the same error persists.I think now
it might
> work,but it did not.
>
    class CreatePosts < ActiveRecord::Migration
  def self.up
    create_table :posts do |t|
      t.string :name
      t.string :title
      t.text :content
    t.timestamps
    end
   end
    def self.down
    drop_table :posts
   end
  end

John

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Colin Law

2011-May-23 10:54 UTC

head link

Re: Re: undefined method `posts_path''

On 23 May 2011 11:50, john shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:>
>
> On Mon, May 23, 2011 at 6:38 AM, Colin Law
<clanlaw-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
>>
>> On 23 May 2011 11:20, john shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> >
>> >
>> > On Mon, May 23, 2011 at 3:04 AM, Colin Law
<clanlaw-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
>> > wrote:
>> >>
>> >> On 23 May 2011 02:59, John shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> >> >
>> >> >
>> >> > On May 22, 12:57 pm, Jatin kumar
<jatinkumar.n...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> >> >> You are confusing things a lot.
>> >> >> Answer this question first:
>> >> >> Did you scaffold the model or you are adding the
files one by one
>> >> >> writing
>> >> >> the code by hand.
>> >> >  I didnt scaffold.I am adding files one by one.
>> >> >
>> >> >> 1. If you did scaffold, I don''t see a
problem coming anywhere.
>> >> >> 2. If you didn''t scaffold, then go for
Colin''s suggestion and read
>> >> >> the
>> >> >> guides, you will understand how Rails works.
>> >> >> AND read the guides rightnow, before you get troubled
by another
>> >> >> problem.
>> >> >>
>> >> >> As of the current problem that you are facing, do
this:
>> >> >> 1. Look up the database table for posts, and see if
you have a
>> >> >> column
>> >> >> named
>> >> >> ''name'' in there. If not, what went
wrong.
>> >> >  In ''posts'' table there is no column
for name,title and content.
>> >>
>> >> I suggested before reading the Rails Guide on Routing.  I also
suggest
>> >> that you read the Getting Started guide and then the others.
 Also
>> >> work through a good tutorial (make sure it is for the version
of Rails
>> >> that you are using).  railstutorial.org is a good free to use
online
>> >> tutorial.
>> >
>> >           Thank you very much.I will read it now.
>> >>
>> >>  The reason is that you are missing some fundamental
>> >> understanding of how Rails works.  When you do form_for(@post)
and
>> >> then f.text_field :name rails expects @post to have a method
''name'' to
>> >> get the initial value for display.  Often this will come
automatically
>> >> from the fact that the posts table will contain a column
''name''.
>> >> Since you have no such column it complains that Post has no
method
>> >
>> >       Because i am not doing scaffold,so can i add column values
>> >       manually to table ''posts'' OR changes
should be made in
>> >       Model.
>>
>> You can add them using migrations.  railstutorial.org will show you
>> how to do that.
>>        I created migration  and added  following code inside and then
did
>> "rake db:migrate" but still the same error persists.I think
now it might
>> work,but it did not.
Have you worked right through railstutorial.org already?

Colin

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john shelfer

2011-May-23 14:37 UTC

head link

Re: Re: undefined method `posts_path''

On Mon, May 23, 2011 at 6:54 AM, Colin Law
<clanlaw-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
> On 23 May 2011 11:50, john shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >
> >
> > On Mon, May 23, 2011 at 6:38 AM, Colin Law
<clanlaw-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
> wrote:
> >>
> >> On 23 May 2011 11:20, john shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >> >
> >> >
> >> > On Mon, May 23, 2011 at 3:04 AM, Colin Law
<clanlaw-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
> >> > wrote:
> >> >>
> >> >> On 23 May 2011 02:59, John shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >> >> >
> >> >> >
> >> >> > On May 22, 12:57 pm, Jatin kumar
<jatinkumar.n...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> wrote:
> >> >> >> You are confusing things a lot.
> >> >> >> Answer this question first:
> >> >> >> Did you scaffold the model or you are adding the
files one by one
> >> >> >> writing
> >> >> >> the code by hand.
> >> >> >  I didnt scaffold.I am adding files one by one.
> >> >> >
> >> >> >> 1. If you did scaffold, I don''t see a
problem coming anywhere.
> >> >> >> 2. If you didn''t scaffold, then go for
Colin''s suggestion and read
> >> >> >> the
> >> >> >> guides, you will understand how Rails works.
> >> >> >> AND read the guides rightnow, before you get
troubled by another
> >> >> >> problem.
> >> >> >>
> >> >> >> As of the current problem that you are facing,
do this:
> >> >> >> 1. Look up the database table for posts, and see
if you have a
> >> >> >> column
> >> >> >> named
> >> >> >> ''name'' in there. If not, what
went wrong.
> >> >> >  In ''posts'' table there is no
column for name,title and content.
> >> >>
> >> >> I suggested before reading the Rails Guide on Routing.  I
also
> suggest
> >> >> that you read the Getting Started guide and then the
others.  Also
> >> >> work through a good tutorial (make sure it is for the
version of
> Rails
> >> >> that you are using).  railstutorial.org is a good free to
use online
> >> >> tutorial.
> >> >
> >> >           Thank you very much.I will read it now.
> >> >>
> >> >>  The reason is that you are missing some fundamental
> >> >> understanding of how Rails works.  When you do
form_for(@post) and
> >> >> then f.text_field :name rails expects @post to have a
method ''name''
> to
> >> >> get the initial value for display.  Often this will come
> automatically
> >> >> from the fact that the posts table will contain a column
''name''.
> >> >> Since you have no such column it complains that Post has
no method
> >> >
> >> >       Because i am not doing scaffold,so can i add column
values
> >> >       manually to table ''posts'' OR changes
should be made in
> >> >       Model.
> >>
> >> You can add them using migrations.  railstutorial.org will show
you
> >> how to do that.
> >>        I created migration  and added  following code inside and
then
> did
> >> "rake db:migrate" but still the same error persists.I
think now it might
> >> work,but it did not.
>
> Have you worked right through railstutorial.org already?
>   No.I followed yet it from Agile web development with Rails (Pdf).Does
> everything seems right with coding part?
>
    John

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Colin Law

2011-May-23 14:50 UTC

head link

Re: Re: undefined method `posts_path''

On 23 May 2011 15:37, john shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:>   No.I followed yet it from Agile web development with Rails (Pdf).Does
> everything seems right with coding part?
It looks ok.  Can you post your models/post.rb file, the error message
you are getting, the stack trace, and the relevant section of code
where the error is generated (I know you have posted this previously
but copy it and paste it again just so we have everything together).
Tell us which line in the source is the one referred to in the error.
Copy from your actual files so we make sure there are no typos.  If
while doing this you realise that the error is not actually the same
one you were getting previously then try to work it out before
posting.

Also check that the database does now actually contain the posts table
with the correct columns.

Colin

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john shelfer

2011-May-23 15:06 UTC

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Re: Re: undefined method `posts_path''

On Mon, May 23, 2011 at 10:50 AM, Colin Law
<clanlaw-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
> On 23 May 2011 15:37, john shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >   No.I followed yet it from Agile web development with Rails
(Pdf).Does
> > everything seems right with coding part?
>
> It looks ok.  Can you post your models/post.rb file,

       model/post.rb file looks like:
      class Post < ActiveRecord::Base
       end

the error message> you are getting, the stack trace, and the relevant section of code
> where the error is generated

> (I know you have posted this previously
> but copy it and paste it again just so we have everything together).
> Tell us which line in the source is the one referred to in the error.
>     In /app/view/try.htm..erb file generate error at line number 8
      which is
      <%= f.text_field :name %>
> Copy from your actual files so we make sure there are no typos.  If
> while doing this you realise that the error is not actually the same
> one you were getting previously then try to work it out before
> posting.
>
> Also check that the database does now actually contain the posts table
> with the correct columns.
>    Posts table exist in database but there is no column for name,title
    and content even after "rake db:migrate",it couldn''t
generate.

      John
>
> Colin
>
> --
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>
>
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Hassan Schroeder

2011-May-23 15:33 UTC

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Re: Re: undefined method `posts_path''

On Mon, May 23, 2011 at 8:06 AM, john shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> Also check that the database does now actually contain the posts table
>> with the correct columns.
>
>     Posts table exist in database but there is no column for name,title
>     and content even after "rake db:migrate",it couldn''t
generate.
If your migration didn''t run, then how do you expect this to work any
better than before?

And your previously posted migration code was trying to *create* a
table that apparently already exists, which is pretty much guaranteed
to fail :-)

You might want to read up on migrations at this point...

FWIW,
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John shelfer

2011-May-24 03:17 UTC

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Re: undefined method `posts_path''

On May 23, 11:33 am, Hassan Schroeder
<hassan.schroe...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> On Mon, May 23, 2011 at 8:06 AM, john shelfer
<johnsshel...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >> Also check that the database does now actually contain the posts
table
> >> with the correct columns.
>
> >     Posts table exist in database but there is no column for
name,title
> >     and content even after "rake db:migrate",it
couldn''t generate.
>
> If your migration didn''t run, then how do you expect this to work
any
> better than before?      But to run a migration "rake db:migrate" is right command ,still
it
      didn''t run .why?> And your previously posted migration code was trying to *create* a
> table that apparently already exists, which is pretty much guaranteed
> to fail :-)
  Yes table already exist but migration didn''t run so columns are not
  added in table.

 John

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John shelfer

2011-May-24 03:24 UTC

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Re: undefined method `posts_path''

On May 23, 11:33 am, Hassan Schroeder
<hassan.schroe...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> On Mon, May 23, 2011 at 8:06 AM, john shelfer
<johnsshel...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >> Also check that the database does now actually contain the posts
table
> >> with the correct columns.
>
> >     Posts table exist in database but there is no column for
name,title
> >     and content even after "rake db:migrate",it
couldn''t generate.
>
> If your migration didn''t run, then how do you expect this to work
any
> better than before?
>
> And your previously posted migration code was trying to *create* a
> table that apparently already exists, which is pretty much guaranteed
> to fail :-)
>
> You might want to read up on migrations at this point...  I checked out this and it seems ok with my migration coding part

 http://guides.rubyonrails.org/migrations.html

 John

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Hassan Schroeder

2011-May-24 03:32 UTC

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Re: Re: undefined method `posts_path''

On Mon, May 23, 2011 at 8:17 PM, John shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> But to run a migration "rake db:migrate" is right command ,still
> it didn''t run .why?
That''s what error messages tell you. But you have to read them.

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john shelfer

2011-May-24 05:58 UTC

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Re: Re: undefined method `posts_path''

On Mon, May 23, 2011 at 11:32 PM, Hassan Schroeder <
hassan.schroeder-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> On Mon, May 23, 2011 at 8:17 PM, John shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> wrote:
>
> > But to run a migration "rake db:migrate" is right command
,still
> > it didn''t run .why?
>
> That''s what error messages tell you. But you have to read them.
>
> I checked out this and it seems ok with my migration coding part
>
>  http://guides.rubyonrails.org/migrations.html
>
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John

2011-May-24 07:29 UTC

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Re: Re: undefined method `posts_path''

On Tue, May 24, 2011 at 1:58 AM, john shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>wrote:
>
>
> On Mon, May 23, 2011 at 11:32 PM, Hassan Schroeder <
> hassan.schroeder-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
>> On Mon, May 23, 2011 at 8:17 PM, John shelfer
<johnsshelfer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
>> wrote:
>>
>> > But to run a migration "rake db:migrate" is right
command ,still
>> > it didn''t run .why?
>>
>> That''s what error messages tell you. But you have to read
them.
>>
>
>
>>  Problem is solved.
>>
>
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Rails - May 2011 - undefined method `posts_path'

undefined method `posts_path''

Re: undefined method `posts_path''

Re: undefined method `posts_path''

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