• 北京: 千橡集团暨校内网诚聘软件研发工程师
• 搜狐网站诚聘Java、PHP和C++工程师

• 搜狐网站诚聘Java、PHP和C++工程师
• 北京: 千橡集团暨校内网诚聘软件研发工程师

• 北京: 千橡集团暨校内网诚聘软件研发工程师
• 搜狐网站诚聘Java、PHP和C++工程师

• 搜狐网站诚聘Java、PHP和C++工程师
• 北京: 千橡集团暨校内网诚聘软件研发工程师

• 北京: 千橡集团暨校内网诚聘软件研发工程师
• 搜狐网站诚聘Java、PHP和C++工程师

• 北京: 千橡集团暨校内网诚聘软件研发工程师
• 搜狐网站诚聘Java、PHP和C++工程师

• 搜狐网站诚聘Java、PHP和C++工程师
• 北京: 千橡集团暨校内网诚聘软件研发工程师

• 搜狐网站诚聘Java、PHP和C++工程师
• 北京: 千橡集团暨校内网诚聘软件研发工程师

if options[:magick][:image_required]
  @magick_errors ||= []
  @magick_errors << "invalid image"
end

  @magick_errors << (options[:error_message] || "invalid image")

  validates_file_format_of :image, :in => ["gif", "png", "jpg"]

options[:message] = [options[:messge]].to_s || "is not a valid format."
record.errors.add attr, options[:message] unless extensions.include?(value.scan(EXT_REGEXP).flatten.first)

  validates_file_format_of :image, :in => ["gif", "png", "jpg"], :message => "只能是后缀为jpg, png, gif的文件"

  validates_filesize_of :image, :in => 0..1.megabyte

class Portrait < ActiveRecord::Base
  belongs_to :user
  file_column :image, :magick => { 
          :versions => { "thumb" => "72x72", "icon" => "36x36>"},
          :geometry => "150x150>", :error_message => "不是图形文件"
        }
  validates_filesize_of :image, :in => 0..1.megabyte, :too_large => "不能大于1M“
  validates_file_format_of :image, :in => ["gif", "png", "jpg"], :message => "必须是后缀为jpg png gif的图形文件"
  validates_presence_of :image
end

class User < ActiveRecord::Base
  has_one :portrait
  
  def main_portrait
    "/portrait/image/" + portrait.send("image_relative_path")
  end

  def thumbnail
    "/portrait/image/" + portrait.send("image_relative_path", "thumb")
  end

  def icon
    "/portrait/image/" + portrait.send("image_relative_path", "icon")
  end
end

• 北京: 千橡集团暨校内网诚聘软件研发工程师
• 搜狐网站诚聘Java、PHP和C++工程师

class User < ActiveRecord::Base
  has_many :categories, :as => :owner #owner_id owner_type
  has_many :posts, :through => :categories
end
class Category < ActiveRecord::Base
  has_many :posts, :as => :postable #postable_id, postable_type
  belongs_to :user, :polymorphic => true
end
class Post < ActiveRecord::Base
  belongs_to :postable, :polymorphic => true
end

class User < ActiveRecord::Base
  has_many :categories, :foreign_key => "owner_id", :conditions => "owner_type = 'User'" #owner_id owner_type
  has_many :posts, :through => :categories
end

• 北京: 千橡集团暨校内网诚聘软件研发工程师
• 搜狐网站诚聘Java、PHP和C++工程师

class BlogController < ApplicationController
  in_place_edit_for :post, :title
end
  # View
  <%= in_place_editor_field :post, :title %>

<%= in_place_editor_field :post, :title, {}, {:field_type => 'select' , :select_options => ["title1", "title2", "title3"]} %>

    js_options['select_options'] = "'" + (options[:select_options].is_a?(Array)?
      options[:select_options].join(',') : options[:select_options]) + "'" if js_options[:options].to_s == 'select'

• 北京: 千橡集团暨校内网诚聘软件研发工程师
• 搜狐网站诚聘Java、PHP和C++工程师