Ruby on Rails

On 30 April 2011 16:40, amrit pal pathak <amritpalpathak1@gmail.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.

>  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

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

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