Question

我用过will_paginate宝石。我有一个用于选择用户的复选框。每页显示5个用户。当我翻页时，第一个选定的复选框值不会持久。

//实施代码 new.html.erb

<td><%= check_box_tag 'users[]',x.id, checked(@team,x)%></td>

//控制器代码

def new
  @player= Player.new
  @team = Team.find(params[:team_id])
  @players= User.includes(:roles).where(roles:{name:'player'})
  @user = @players.all.paginate(page: params[:page], per_page:5)
end

// log

`Started GET "/teams/3" for 127.0.0.1 at 2019-03-08 13:15:03 +0530
Processing by TeamsController#show as HTML
  Parameters: {"id"=>"3"}
  User Load (0.5ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? ORDER BY "users"."id" ASC LIMIT ?  [["id", 81], ["LIMIT", 1]]
  ↳ /Users/beyondapplications/.rvm/gems/ruby-2.4.5/gems/activerecord-5.2.2/lib/active_record/log_subscriber.rb:98
  Rendering teams/show.html.erb within layouts/application
  Team Load (0.6ms)  SELECT "teams".* FROM "teams"
  ↳ app/views/teams/show.html.erb:3
  User Load (0.3ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 87], ["LIMIT", 1]]
  ↳ app/views/teams/show.html.erb:7
  User Load (0.2ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 90], ["LIMIT", 1]]
  ↳ app/views/teams/show.html.erb:7
  User Load (0.1ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 89], ["LIMIT", 1]]
  ↳ app/views/teams/show.html.erb:7
  User Load (0.2ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 80], ["LIMIT", 1]]
  ↳ app/views/teams/show.html.erb:7
  Rendered teams/show.html.erb within layouts/application (11.3ms)
  Rendered layouts/_header.html.erb (1.9ms)
Completed 200 OK in 231ms (Views: 222.4ms | ActiveRecord: 1.9ms)

`

在rails分页时如何保持复选框中选中的值

0 个答案: