环境¶ ↑

• ubuntu 12.04

• ruby 1.9.3

• rails 3.2.9

项目¶ ↑

1 创建用户鹰架

  rails g scaffold User

  用户登录与注销 sessions

2 用户互加好友

tables¶ ↑

1 User

2 Circles

t.integer :user_id
t.string :title
t.integer :friend
t.string :friend_name
t.text :discription

t.timestamps

3 Messages

t.integer :from_id
t.integer :to_id
t.string :title
t.text :message
t.boolean :valid
t.datetime :create_time

t.timestamps

4 Depot t.integer storage_id t.integer user_id t.integer rule_id t.integer category_id t.string typies t.text title t.text item_a t.text item_b t.text item_c t.text item_d t.text item_e t.text item_f t.text item_g t.text item_h t.text item_i t.text item_j t.string right_key t.string done_key t.integer need_time t.integer record_id t.integer session_id

涉及的插件技术¶ ↑

1. paperclip 上传头像

$ sudo apt-get install imagemagick
gem "paperclip", "~> 3.0"
# edit User model
    class User < ActiveRecord::Base
      attr_accessible :avatar
      has_attached_file :avatar, :styles => { :medium => "300x300>", :thumb => "100x100>" }
    end
$ rails generate paperclip user avatar
# in views
    <%= form_for @user, :url => users_path, :html => { :multipart => true } do |form| %>
      <%= form.file_field :avatar %>
    <% end %>
# in html
    <%= image_tag @user.avatar.url %>
    <%= image_tag @user.avatar.url(:medium) %>
    <%= image_tag @user.avatar.url(:thumb) %>

1. Gravatar 社会化的头像

参考 railscasts 244
# application_helper.rb
  def avatar_url(user)
    if user.avatar_url.present?
      user.avatar_url
    else
      default_url = "#{root_url}images/guest.png"
      gravatar_id = Digest::MD5.hexdigest(user.email.downcase)
      "http://gravatar.com/avatar/#{gravatar_id}.png?s=48&d=#{CGI.escape(default_url)}"
    end
  end
# user/_header.html.erb
  <%= image_tag avatar_url(user) %>

1. Bootstrap css 使用推特的风格模板

   细节忘了，好像是把下载的bootstrap直接考入到 app/assets 下的各个目录内，但要在css里修改一下图标的image路径