NOTES.markdown

Hi, these are STEP BY STEP instructions to make ROC-LAB3 from ROC-LAB2.

Getting started

Start from your own version of roc-lab2, or get it from the repo: git clone git://github.com/kudelabs/roc-lab2.git

1. add user model, add relationships to messages, and replies.

• $ rails generate model user name:string email:string password:string

• $ rails generate migration add_user_to_messages_and_replies

• add following two lines to the newly created migration file:

    add_column :messages, :user_id, :integer
    add_column :replies, :user_id, :integer
  

• add associations:

•   in user model => has_many :messages, :replies
    in message and reply models => belongs_to :user
  

• rake db:migrate

2. play with the new user in rails console

• $ rails console
• $ user = User.create(:name=>'pengyou',:email=>"[email protected]",:password=>'test')
• $ msg = user.messages.create(:body=>'hellow haha')
• $ reply = msg.replies.create(:body=>"reply to myself")
• $ reply.user = user
• $ reply

3. edit views, replace placeholder "someone" to be real users

start server and then go to see the effect from console.

4. create user, sessions controllers

• $ rails generate controller users new
• $ rails generate controller sessions new

and add before_filter :require_logged_in

5. add routes:

• match 'login' => "sessions#new"
• match 'logout' => "sessions#destroy"
• match 'signup' => "users#new"

6. finish up sessions#new, user#new and then sessions#destroy

<%=form_tag sessions_path do%>
    <p>
      Name: <%=text_field_tag :name%>
    </p>

    <p>
      Password: <%=password_field_tag :password%>
    </p>

    <%=submit_tag "Login"%>
<%end%>

7. update message#create, reply#create to add user association.

message.user = current_user
reply.user = current_user