我欢迎,用户,大学,教育模式.. 在欢迎页面上,我想显示仅与那些与当前用户去过同一所大学的用户发布的消息...但我无法证明这一点。我在欢迎控制器中写了以下代码:
def index
@welcome = Welcome.all
@newmessage = Welcome.new
@college = User.find(@current_user.id).colleges
end
使用第一行我能够显示我视图中所有用户发布的消息,但这不是我想要的。使用第三行我能够找到当前用户的大学数据,但我不知道我怎么能使用此数据......
我如何才能搜索与当前用户同等学历的用户...
以下是型号代码:
class User < ActiveRecord::Base
has_many :welcomes
has_many :educations
has_many :colleges, :through => :educations
end
class College < ActiveRecord::Base
has_many :educations
has_many :users, :through => :educations
end
class Welcome < ActiveRecord::Base
belongs_to :user
end
以下是这些模型的架构代码:
create_table "welcomes", :force => true do |t|
t.text "message"
t.integer "user_id"
t.datetime "created_at"
t.datetime "updated_at"
end
create_table "users", :force => true do |t|
t.string "email", :default => "", :null => false
t.string "encrypted_password", :limit => 128, :default => "", :null => false
t.string "reset_password_token"
t.datetime "reset_password_sent_at"
t.datetime "remember_created_at"
t.integer "sign_in_count", :default => 0
t.datetime "current_sign_in_at"
t.datetime "last_sign_in_at"
t.string "current_sign_in_ip"
t.string "last_sign_in_ip"
t.datetime "created_at"
t.datetime "updated_at"
t.string "first_name"
t.string "last_name"
t.integer "role_id"
t.string "ancestry"
end
create_table "educations", :force => true do |t|
t.integer "college_id"
t.integer "user_id"
t.integer "year"
t.text "concentration"
t.string "attended_for"
t.datetime "created_at"
t.datetime "updated_at"
t.string "month"
t.boolean "private", :default => false
t.boolean "approved", :default => false
t.integer "approved_by"
t.boolean "alumni", :default => false
t.boolean "is_mentor", :default => false
t.boolean "approved_mentor", :default => false
end
create_table "colleges", :force => true do |t|
t.string "name"
t.datetime "created_at"
t.datetime "updated_at"
t.boolean "approved", :default => false
end
答案 0 :(得分:0)
看看这是否有帮助 -
User.find(@current_user.id).colleges.joins(:users => :welcomes).select('welcomes.message')