Question

我有一个大问题！

我有三个模特，学校，秘书和学校_秘书。 School_secretary制作一个连接模型，并且工作正常..但是在添加记录后，我不能删除相同的。（有人可以帮帮我吗？

我不想删除依赖毁灭，因为学校和秘书永远不会删除，我想只删除表上的连接模型记录schools_secretaries

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 to acess localhost / schools / 1 / secretaryaries / 1

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

端

show.html.erb ..行动新工作正常，我可以在表格中插入注册

    <%= 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，我们假设您拥有@school和@secretary。现在尝试以下代码。

@school.secretaries.delete(@secretary)

有许多通过删除链接Rails

1 个答案: