ruby-on-rails - 有很多通过删除链接的Rails

Question

我有一个大问题!

我有三个模型，School、Secretaries 和 Schools_Secretary。School_secretary 制作了一个连接模型，并且工作正常..但是添加记录后，我无法删除它。 ;(有人可以帮助我吗？

我不想删除 depent destroy，因为 School 和 Secretary 从未删除，我只想删除表 schools_secretaries 上的连接模型记录

秘书.rb

      class Secretary < ActiveRecord::Base
      # Include default devise modules. Others available are:
      # :confirmable, :lockable, :timeoutable and :omniauthable
      devise :database_authenticatable, :registerable,
             :recoverable, :rememberable, :trackable, :validatable
 has_many :schools_secretaries
  has_many :schools, :through => :schools_secretaries,:uniq => true

end

学校.rb

class School < ActiveRecord::Base

    has_many :schools_secretaries
    has_many :secretaries, :through => :schools_secretaries,:uniq => true

end

schools_secretary.rb

class SchoolsSecretary < ActiveRecord::Base
    belongs_to :secretary
    belongs_to :school
end

routes.rb 访问 localhost/schools/1/secretaries/1

resources :schools  do
 resources :schools_secretaries
 resources :secretaries
 devise_for :secretaries, :controllers => {:registrations => "registrations"}

结束

show.html.erb .. Action new 工作正常，我可以在表中插入寄存器

    <%= form_for [@school,SchoolsSecretary.new], :method => :post,:remote => true do  %>
 <%= hidden_field_tag :school_id, @school.id %>
  <%= hidden_field_tag :secretary_id, @secretary.id %> 
  <%= submit_tag 'Adicionar' %>
<% end %>

schools_secretaries_controller.rb

  def create
    @school = School.find(params[:school_id])
    @secretary = Secretary.find(params[:secretary_id])

    schools_secretary_params = { :school_id => @school.id, :secretary_id => @secretary.id }

    @schools_secretary = SchoolsSecretary.new(schools_secretary_params)

    respond_to do |format|
      if @schools_secretary.save
        format.html { redirect_to @schools_secretary, notice: 'Schools secretary was successfully created.' }
        #format.json { render action: 'show', status: :created, location: @schools_secretary }
      else
        format.html { render action: 'new' }
        format.json { render json: @schools_secretary.errors, status: :unprocessable_entity }
      end
    end
  end

Answer 1

要删除连接表记录，假设您有@school 和@secretary。现在试试下面的代码。

@school.secretaries.delete(@secretary)