"uninitialized constant PostsController::Post"
amrit pal pathak
generate a form without using the scaffold(just used a controller and
view ).what i have done till now ,is as follow.Using rails 3.0.7.
"rails generate controller posts
index"
1) post_controller.rb
class PostsController < ApplicationController
def index
@post=Post.new
end
def create
@post = Post.new(params[:post])
respond_to do |format|
end
end
end
2)index.html.erb
<h1>Posts#index</h1>
<p>Find me in app/views/posts/index.html.erb</p>
<%= 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 %>
i didnt create any model because i just
want to create a simple form first.so when i brower to "localhost:3000/
posts/index", it says
"uninitialized constant PostsController::Post
Please somebody help to resolve it
Thanks
Walter Davis
You must have a model if you're going to call Post.new. That's where
that 'new' method happens. The model tells the controller what fields
it should initialize, which tells the view that the default values are
whatever they are, etc. It's MVC, not VC!
Walter
>
>
>
>
> --
> You received this message because you are subscribed to the Google
> Groups "Ruby on Rails: Talk" group.
> To post to this group, send email to rubyonrails-
> ta...@googlegroups.com.
> To unsubscribe from this group, send email to rubyonrails-ta...@googlegroups.com
> .
> For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en
> .
>
Colin Law
> This time i read scaffold tutorial very carefully and finally try to
> generate a form without using the scaffold(just used a controller and
> view ).what i have done till now ,is as follow.Using rails 3.0.7.
>
> "rails generate controller posts
> index"
>
> 1) post_controller.rb
>
> class PostsController < ApplicationController
> def index
> @post=Post.new
Why are you making a post in the index action? This action should
just be showing posts.
You have not told us which line is failing, but I guess it is the one that says
@post=Post.new
which says make a new Post object, but since you have not written the
Post model how can it make a Post object?
You cannot make a form for an object without defining the model first.
form_for( @post ) makes a form for the object @post.
Colin
amrit pal pathak
On Apr 30, 12:08 pm, Colin Law <clan...@googlemail.com> wrote:
>
> > This time i read scaffold tutorial very carefully and finally try to
> > generate a form without using the scaffold(just used a controller and
> > view ).what i have done till now ,is as follow.Using rails 3.0.7.
>
> > "rails generate controller posts
> > index"
>
> > 1) post_controller.rb
>
> > class PostsController < ApplicationController
> > def index
> > @post=Post.new
>
> Why are you making a post in the index action? This action should
> just be showing posts.
is not a ard and fast rule that it must be used for showing posts.I
just doing experiment ,so used it for creating .
ok,model is must.Created a model as.
"rails generate model post" and then
did "rake db:create"(it created a database) and then "rake
db:migrate"(it created a posts tables in database).but now when i
browse to "locahost:3000/posts/index",it says
Showing /home/amrit/final/app/views/posts/index.html.erb where line #4
raised:
undefined method `posts_path' for #<#<Class:0xb67f7784>:0xb67f5560>
Thanks for support!!
Colin Law
> ...
> Showing /home/amrit/final/app/views/posts/index.html.erb where line #4
> raised:
> undefined method `posts_path' for #<#<Class:0xb67f7784>:0xb67f5560>
Amrit I cannot believe that you are asking that question. Look back
through your questions and you will see you have asked similar
questions several times. Always the answer is to rake routes to what
routes you have defined (and so whether posts_path is valid) and to
re-read the Rails Guides on Routing if you do not know how to get that
path defined.
Can you explain how it is that you have to keep asking the question?
Am I the only one thinking that this poster is winding us up?
Colin
Michael Pavling
> Amrit I cannot believe that you are asking that question.
>
Since post 1 I've thought you're banging your head against a wall :-/
Stuff like "this is not a [h]ard and fast rule that it must be used
for showing posts." is ridiculous...
If he wants to "just doing experiment" and use the index action to
create, then be surprised at problems, then he's on a limb on his own.
I'm all for helping people, but they've got to help themselves first
[1]. No-one is here to be anyone else's crutch 24/7.
[1] or at least be able to help themselves with some prompting....
John shelfer
On May 1, 4:12 am, Colin Law <clan...@googlemail.com> wrote:
to
resolve the issue.
amrit pal pathak
Colin Law
>
>
> On May 1, 4:12 am, Colin Law <clan...@googlemail.com> wrote:
>> On 1 May 2011 05:52, amrit pal pathak <amritpalpath...@gmail.com> wrote:
>>> ...
>> Am I the only one thinking that this poster is winding us up?
> Not at all.He is new to Rails So I think we should help him
> to
> resolve the issue.
Ok John. Thanks for volunteering to help sort Amrit out. Over to you.
Good luck
Colin