我在这另外1次发布了,但它仍然无法正常工作,尽管尝试了3个小时,但我无法弄清楚原因。我对这一切都很陌生,这对我来说非常复杂。我非常感谢你的一些帮助。谢谢!
我需要创建一个用户团队。用户belongs_to
一个团队,一个团队has_many
用户。
用户应该能够创建一个团队,加入已有的团队,加入他们当前的团队(如果您可以告诉我如何让创建团队的人员成为团队领导者,那也很棒! )
我的数据库表设置如下:
id, name, email, timestamps, team_id
id, team_name, timestamps, user_id
我得到的错误:
undefined method `team_build' for #<User:0x3a14a80>
1: <%= button_to "Join", join_teams_path(current_user.team.build(team_id: @team_id)), class: "btn btn-large btn-primary" %>
用户模型:
class User < ActiveRecord::Base
attr_accessible :company, :name, :email, :password, :password_confirmation, :image
belongs_to :team, dependent: :destroy
validates :user_id, presence: true
def team_member?
team.present?
end
def join!(team)
return false if team_member?
team.create!(team_id: team.id)
end
def unjoin!(team)
return if team_member?
team.destroy
end
团队模型:
class Team < ActiveRecord::Base
has_many :users
attr_accessible :team_name
before_save { |team| team.team_name = team_name.downcase }
validates :team_name,
presence: true,
length: { maximum: 140 },
uniqueness: { case_sensitive: false }
default_scope order: 'teams.created_at DESC'
end
团队控制器:
class TeamsController < ApplicationController
before_filter :signed_in_user
def join
@team = Team.find params[:id]
if current_user.join!(@team.id)
redirect_to @user #NOTE dont use redirect when you perform actions with ajax.
else
#render some error
end
end
def show
@team = Team.find(params[:id])
end
def leave
if current_user.unjoin!
redirect_to @user #NOTE dont use redirect when you perform actions with ajax.
else
#render some error
end
end
def new
@team = Team.new
end
def create
@team = Team.new(params[:team])
if @team.save
flash[:success] = "Team Created!"
redirect_to @team
else
render 'new'
end
end
def teams
@title = "Teams"
@team = Teams.find(params[:id])
render 'show_teams'
end
def index
Team.all
end
加入按钮:
<%= button_to "Join", join_teams_path(current_user.team.build(team_id: @team_id)), class: "btn btn-large btn-primary" %>
取消加入按钮:
<%= button_to "Leave Team", leave_teams_path(current_user.team) , class: "btn btn-large btn-primary" , remote: true %>
路线:
resources :teams
match '/teams', to: 'teams#index'
match '/new_team', to: 'teams#new'
答案 0 :(得分:2)
current_user.teams.build(whatever)
如果你有一个has_many关系,就是你这样做的方式。但是如果你有belongs_to关联,你需要:
current_user.build_team(whatever)
有关详情,请参阅belongs_to here的文档。
答案 1 :(得分:1)
“(如果你能告诉我如何让创建团队的人成为团队领导者,那也很棒!)”
对于团队领导,您可以通过几种方式实现。这是一个简单的方法。
$ rails generate migration AddTeamLeaderUserIdToTeams team_leader_user_id:integer
$ rake db:migrate
这样做是为您的团队表添加一个新列,以便每个团队可以存储其团队负责人的用户ID(注意:这意味着每个团队只能有一个团队负责人。我可以解释您是否想要如何拥有多个团队领导者。)
从那里,当你创建一个新团队时,你可以这样做:
team = Team.create({:team_name => "Stanford Cardinal", :team_leader_user_id => current_user.id}).
然后将来你可以得到团队领导:
team_leader = User.find_by_id(Team.find_by_team_name("Stanford Cardinal").team_leader_user_id))
希望这有点帮助。如果不清楚,请随意提出更多问题。
答案 2 :(得分:1)
我明白了。构建方法不起作用。该团队已经建立,用户已经建立。我只需要建立连接。这就是我所拥有的:
团队控制器:
def show
@team = Team.find(params[:id])
@team_members = @team.users
@user = User.find(params[:id]) if signed_in?
end
加入按钮部分:
<%= form_for(@user) do |f| %>
<%= f.hidden_field :team_id, :value => @team.id %>
<%= f.submit "Join Team", class: "btn btn-large btn-primary" %>
<% end %>