尝试完成：创建一个团队，并将用户分配给该团队。这些用户将成为团队成员。
一些注意事项：
型号：
team.rb
class Team < ApplicationRecord
belongs_to :account
has_many :team_members, dependent: :destroy
has_many :users, through: :team_members
accepts_nested_attributes_for :team_members
end
user.rb
class User < ApplicationRecord
has_many :team_members
has_many :teams, through: :team_members
end
team_member.rb.rb
class TeamMember < ApplicationRecord
belongs_to :account
belongs_to :team
belongs_to :user
end
控制器：
module Accounts
class TeamsController < Accounts::BaseController
before_action :set_team, only: [:show, :edit, :update, :destroy]
def index
@teams = current_account.teams.all.order("created_at DESC")
end
def new
@team = current_account.teams.new
@team_member = @team.team_members.build
end
def show
end
def create
@team = current_account.teams.new(team_params)
respond_to do |format|
if @team.save
@team.team_members.where(account_id: current_account.id, user_id: current_user.id).first_or_create
format.html { redirect_to @team, notice: "Team was successfully created." }
format.json { render :show, status: :created, location: @team }
else
format.html { render :new }
format.json { render json: @team.errors, status: :unprocessable_entity }
end
end
end
private
def set_team
@team = current_account.teams.find(params[:id])
end
def team_params
params.require(:team).permit(:name, :account_id, team_members:[])
end
end
end
观看次数： teams / new.html.erb
<section class="section">
<%= render 'form', team: @team %>
</section>
teams / _form.html.erb
<%= simple_form_for(@team) do |f| %>
<%= f.error_notification %>
<form class="px-8 pt-6 pb-8 mb-4 bg-white rounded">
<div class="mb-4">
<div class="w-full mb-4 md:mr-2 md:mb-0">
<label class="block mb-2 text-sm font-bold text-gray-700" for="teamName">
Name your team
</label>
<%= f.input :name, autofocus: true, class: 'w-full px-3 py-2 mb-3 text-sm leading-tight text-gray-700 border rounded shadow appearance-none focus:outline-none focus:shadow-outline', label: false %>
</div>
</div>
<div class="field">
<%= f.label "Add users to team" %><br />
<%= f.collection_check_boxes :team_members, current_account.users.all, :id, :name do |b| %>
<div class="collection-check-box">
<%= b.check_box %>
<%= b.label %>
</div>
<% end %>
</div>
<div class="field">
<div class="control">
<%= f.button :submit, class: "w-full px-4 py-2 font-bold text-white rounded-full bg-green-500 hover:bg-green-700 focus:outline-none focus:shadow-outline" %>
</div>
</div>
</form>
<% end %>
更多注意事项：
在我的控制器中。您会注意到，在create方法中，在保存的正下方有一行
@team.team_members.where(account_id: current_account.id, user_id: current_user.id).first_or_create
这确实在数据库中为当前用户创建了TeamMembers。但是，我也想添加我在表单中选择的用户，也将其添加为TeamMembers。
快速更新
ActiveRecord :: AssociationTypeMismatch在Accounts :: TeamsController＃create中 预计会获得TeamMember（＃70366319660620），得到的是“”，它是String（＃70366253145620）的一个实例
参数：
{“ authenticity_token” =>“ YCE3KxoOgFPSCc2H1olmfpKiorf2wY7XlCFJXisa5Va / Yi3z0fy2QCny45TB8rgUij9 + 1tV7U8CmtACK1cxgOg ==”， “ team” => {“ name” =>“这是一个测试”，“ team_members” => [“”，“ 5”]}， “ commit” =>“创建团队”}
注意，但是，如果我从参数中删除team_members：[]，则记录会将当前用户保存到Team Member的数据库中
其他修改
从下面的评论中，我现在正在使用
def create
team_members = User.find(team_params[:team_members])
@team = current_account.teams.new(team_params.merge(users: team_members))
respond_to do |format|
if @team.save
@team.team_members.where(account_id: current_account.id, user_id: current_user.id).first_or_create
format.html { redirect_to @team, notice: "Team was successfully created." }
format.json { render :show, status: :created, location: @team }
else
format.html { render :new }
format.json { render json: @team.errors, status: :unprocessable_entity }
end
end
end
在视图中，我设置了include_hidden：false
收到以下错误：
ActiveRecord :: AssociationTypeMismatch在Accounts :: TeamsController＃create中 预计会获得TeamMember（＃70366305317040），它是String（＃70366253145620）的实例“ 5”
下一个更新
使用：@team = current_account.teams.new（team_params.except（：team_members）.merge（users：team_members）
Started POST "/teams" for 127.0.0.1 at 2020-02-09 17:29:59 -0500
17:29:59 web.1 | Processing by Accounts::TeamsController#create as HTML
17:29:59 web.1 | Parameters: {"authenticity_token"=>"Pe+gDCggvkbeLcv0HiYr6LI52mnz89jtpVQSM9mf8mgIypqdEVn4yhlp6rEI9n4U7ijQHX4or9T8rPF5v8a5lw==", "team"=>{"name"=>"This is a test", "team_members"=>["5"]}, "commit"=>"Create Team"}
17:29:59 web.1 | User Load (0.3ms) SELECT "users".* FROM "users" WHERE "users"."id" = $1 ORDER BY "users"."id" ASC LIMIT $2 [["id", 2], ["LIMIT", 1]]
17:29:59 web.1 | ↳ app/controllers/accounts/base_controller.rb:18:in `authorize_user!'
17:29:59 web.1 | Account Load (0.3ms) SELECT "accounts".* FROM "accounts" WHERE "accounts"."subdomain" = $1 LIMIT $2 [["subdomain", "diplomat"], ["LIMIT", 1]]
17:29:59 web.1 | ↳ app/controllers/accounts/base_controller.rb:6:in `current_account'
17:29:59 web.1 | User Load (0.3ms) SELECT "users".* FROM "users" WHERE "users"."id" = $1 LIMIT $2 [["id", 2], ["LIMIT", 1]]
17:29:59 web.1 | ↳ app/controllers/accounts/base_controller.rb:19:in `authorize_user!'
17:29:59 web.1 | (0.9ms) BEGIN
17:29:59 web.1 | ↳ app/controllers/accounts/teams_controller.rb:23:in `block in create'
17:29:59 web.1 | Team Create (1.4ms) INSERT INTO "teams" ("name", "account_id", "created_at", "updated_at") VALUES ($1, $2, $3, $4) RETURNING "id" [["name", "This is a test"], ["account_id", 2], ["created_at", "2020-02-09 22:29:59.577691"], ["updated_at", "2020-02-09 22:29:59.577691"]]
17:29:59 web.1 | ↳ app/controllers/accounts/teams_controller.rb:23:in `block in create'
17:29:59 web.1 | (0.5ms) COMMIT
17:29:59 web.1 | ↳ app/controllers/accounts/teams_controller.rb:23:in `block in create'
17:29:59 web.1 | TeamMember Load (0.7ms) SELECT "team_members".* FROM "team_members" WHERE "team_members"."team_id" = $1 AND "team_members"."account_id" = $2 AND "team_members"."user_id" = $3 ORDER BY "team_members"."id" ASC LIMIT $4 [["team_id", 37], ["account_id", 2], ["user_id", 2], ["LIMIT", 1]]
17:29:59 web.1 | ↳ app/controllers/accounts/teams_controller.rb:24:in `block in create'
17:29:59 web.1 | (0.3ms) BEGIN
17:29:59 web.1 | ↳ app/controllers/accounts/teams_controller.rb:24:in `block in create'
17:29:59 web.1 | Account Load (0.9ms) SELECT "accounts".* FROM "accounts" WHERE "accounts"."id" = $1 LIMIT $2 [["id", 2], ["LIMIT", 1]]
17:29:59 web.1 | ↳ app/controllers/accounts/teams_controller.rb:24:in `block in create'
17:29:59 web.1 | User Load (1.2ms) SELECT "users".* FROM "users" WHERE "users"."id" = $1 LIMIT $2 [["id", 2], ["LIMIT", 1]]
17:29:59 web.1 | ↳ app/controllers/accounts/teams_controller.rb:24:in `block in create'
17:29:59 web.1 | TeamMember Create (2.3ms) INSERT INTO "team_members" ("account_id", "team_id", "user_id", "created_at", "updated_at") VALUES ($1, $2, $3, $4, $5) RETURNING "id" [["account_id", 2], ["team_id", 37], ["user_id", 2], ["created_at", "2020-02-09 22:29:59.609437"], ["updated_at", "2020-02-09 22:29:59.609437"]]
17:29:59 web.1 | ↳ app/controllers/accounts/teams_controller.rb:24:in `block in create'
17:29:59 web.1 | (0.7ms) COMMIT
17:29:59 web.1 | ↳ app/controllers/accounts/teams_controller.rb:24:in `block in create'
17:29:59 web.1 | Redirected to http://diplomat.lvh.me:5000/teams/37
17:29:59 web.1 | Completed 302 Found in 61ms (ActiveRecord: 10.0ms | Allocations: 13997)
17:29:59 web.1 |
17:29:59 web.1 |
17:29:59 web.1 | Started GET "/teams/37" for 127.0.0.1 at 2020-02-09 17:29:59 -0500
17:29:59 web.1 | Processing by Accounts::TeamsController#show as HTML
17:29:59 web.1 | Parameters: {"id"=>"37"}
17:29:59 web.1 | User Load (0.6ms) SELECT "users".* FROM "users" WHERE "users"."id" = $1 ORDER BY "users"."id" ASC LIMIT $2 [["id", 2], ["LIMIT", 1]]
17:29:59 web.1 | ↳ app/controllers/accounts/base_controller.rb:18:in `authorize_user!'
17:29:59 web.1 | Account Load (0.3ms) SELECT "accounts".* FROM "accounts" WHERE "accounts"."subdomain" = $1 LIMIT $2 [["subdomain", "diplomat"], ["LIMIT", 1]]
17:29:59 web.1 | ↳ app/controllers/accounts/base_controller.rb:6:in `current_account'
17:29:59 web.1 | User Load (0.4ms) SELECT "users".* FROM "users" WHERE "users"."id" = $1 LIMIT $2 [["id", 2], ["LIMIT", 1]]
17:29:59 web.1 | ↳ app/controllers/accounts/base_controller.rb:19:in `authorize_user!'
17:29:59 web.1 | Team Load (0.6ms) SELECT "teams".* FROM "teams" WHERE "teams"."account_id" = $1 AND "teams"."id" = $2 LIMIT $3 [["account_id", 2], ["id", 37], ["LIMIT", 1]]
17:29:59 web.1 | ↳ app/controllers/accounts/teams_controller.rb:38:in `set_team'
17:29:59 web.1 | Rendering accounts/teams/show.html.erb within layouts/application
17:29:59 web.1 | Rendered accounts/teams/show.html.erb within layouts/application (Duration: 0.1ms | Allocations: 4)
17:29:59 web.1 | Rendered shared/_head.html.erb (Duration: 27.7ms | Allocations: 10259)
17:29:59 web.1 | Rendered shared/_userselect.html.erb (Duration: 0.7ms | Allocations: 319)
17:29:59 web.1 | Rendered shared/_navbar.html.erb (Duration: 4.3ms | Allocations: 575)
17:29:59 web.1 | Rendered shared/_notices.html.erb (Duration: 0.1ms | Allocations: 33)
17:29:59 web.1 | Announcement Load (0.5ms) SELECT "announcements".* FROM "announcements" ORDER BY "announcements"."published_at" DESC LIMIT $1 [["LIMIT", 1]]
17:29:59 web.1 | ↳ app/helpers/announcements_helper.rb:3:in `unread_announcements'
17:29:59 web.1 | Rendered shared/_footer.html.erb (Duration: 9.8ms | Allocations: 843)
17:29:59 web.1 | Completed 200 OK in 61ms (Views: 43.8ms | ActiveRecord: 2.4ms | Allocations: 15711)
17:29:59 web.1 |
17:29:59 web.1 |