On Apr 24, 1:07 pm, Colin Law <[email protected]> wrote:
> On 24 April 2011 17:29, amrit pal pathak <[email protected]> wrote:
>
>
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>
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>
>
>
> > ...
> > i read again and now try it myself.Exactly follow the
> > tutorils and try to make changes in new ror app.please go through what
> > i have done.
> > 1) add following content to index method of home controller
> > class HomeController < ApplicationController
>
> > def index
> > @home = Home.new
>
> > respond_to do |format|
> > format.html # new.html.erb
> > format.xml { render :xml => @home }
> > end
> > end
> > end
>
> > 2)Add following to the index.html.erb file inside home view
> > <h1>New post</h1>
>
> > <%= render 'form' %>
>
> > <%= link_to 'Back'%>
>
> > 3)Created a new file inside app/view/home/_form.html.erb and added
> > following .(just copy/paste and changed the name according to my
> > methods and controller)
> > <%= form_for(@home) do |f| %>
> > <% if @home.errors.any? %>
> > <div id="error_explanation">
> > <h2><%= pluralize(@home.errors.count, "error") %> prohibited
> > this home from being saved:</h2>
>
> > <ul>
> > <% @home.errors.full_messages.each do |msg| %>
> > <li><%= msg %></li>
> > <% end %>
> > </ul>
> > </div>
> > <% end %>
>
> > <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 %>
>
> > Now i got a error ,it says
>
> > uninitialized constant HomeController::Home
> > app/controllers/home_controller.rb:4:in `index'
>
> > Please guide me here.where is error?
>
> I presume that it is the line
> @home = Home.new
> that is failing. That line makes a new object of class Home. That
> would normally be a model class. Have you defined a model called Home
> (it would be in models/home.rb).
I generated a model using "rails generate model
home" ,it generated follwoing files
amrit@ubuntu:~/demo$ rails generate model home
invoke active_record
create db/migrate/20110425113449_create_homes.rb
create app/models/home.rb
invoke test_unit
create test/unit/home_test.rb
create test/fixtures/homes.yml
Then i perform migrations using "rake db:migrate",it gave (Table homes
is created)
(in /home/amrit/demo)
== CreateHomes: migrating
====================================================
-- create_table(:homes)
-> 0.0714s
== CreateHomes: migrated (0.0717s)
===========================================
So started the server now ,it gave follwoing error message
NoMethodError in Home#index
Showing /home/amrit/demo/app/views/home/_form.html.erb where line #1
raised:
undefined method `homes_path' for #<#<Class:0xb6788a3c>:0xb678790c>
Content of /app/view/home/_form.html.erb file are as;
<%= form_for(@home) do |f| %>
<% if @home.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(@home.errors.count, "error") %> prohibited
this home from being saved:</h2>
<ul>
<% @home.errors.full_messages.each do |msg| %>
<li><%= msg %></li>
<% end %>
</ul>
</div>
<% end %>
<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 %>
Thanks
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