有很多通过删除链接的Rails

Question

我有个大问题！

我有三个模特，学校，秘书和Schools_Secretary。School_secretary建立了一个连接模型，并运行良好。但是在添加了一个记录之后，我不能删除同样的内容。(有人能帮我吗？

我不想删除依赖销毁，因为学校和秘书从未删除过，我只想删除表schools_secretaries上的联接模型记录

Secretary.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

School.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访问本地主机/学校/1/秘书/1

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

结束

show.html.erb .操作新工作很好，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

要删除联接表记录，让我们假设您有“学校”和“秘书”。现在试试下面的代码。

@school.secretaries.delete(@secretary)