school check

_school_fields.html.erb

<div class="inputs nested-fields">
<%= f.input :school_name %>
<%= f.input :address %>
<%= link_to_remove_association '', f, :class => 'fa fa-minus' %>
</div>

book.rb

accepts_nested_attributes_for :author
accepts_nested_attributes_for :gallery, :allow_destroy => true
accepts_nested_attributes_for :schools, :reject_if => :find_school, :allow_destroy => true
accepts_nested_attributes_for :images, :allow_destroy => true


def find_school(school)
	if existing_school = School.find_by_school_name(school['school_name'])
	   self.schools << existing_school
	  return true
	else
	  return false
	end
end

book_form.html.erb

<div id="school" class="field">
      <h3>Schools reading this book (add the name and full address of the school)</h3>
      <%= f.simple_fields_for :schools, :wrapper => 'inline' do |builder| %>  
        <%= render 'school_fields', :f => builder %>
        <%= link_to_add_association 'add school', f, :schools, :render_options => {:wrapper => 'inline' }, :class => 'fa fa-plus' %>
      <% end %>
    </div>

books_controller.rb

class BooksController < ApplicationController

  load_and_authorize_resource
  before_action :set_book, only: [:show, :edit, :update, :destroy]
  before_filter :authenticate_user!, only: [:new, :edit, :update, :destroy]

  # GET /books
  # GET /books.json
  def index
    @books = Book.text_search(params[:query]).order('created_at DESC').all
  end

  # GET /books/1
  # GET /books/1.json
  def show
    # @book = Book.find(params[:id])
    @book = Book.friendly.find(params[:id])
    @current_book = Book.find(params[:id]).id
    @author_id = @book.author.id
    @similar_books = Book.where("id != '#{@current_book}'").where("author_id = '#{@author_id}'").order('created_at DESC')
    @gallery = @book.gallery
    @stories = @book.stories
    @author = Author.new
    @schools = School.where("book_id = '#{@current_book}'")
  end

  # GET /books/new
  def new
    @book = Book.new
    @author = Author.new
    @school = School.new
    @book.build_author
    @gallery = @book.build_gallery
    #@book.build_gallery 
    @gallery.images.build
    @book.schools.build
  end

  # GET /books/1/edit
  def edit
    @book.schools.build if @book.schools.empty?
  end

  # POST /books
  # POST /books.json
  def create
    #raise params.inspect
    @book = Book.create(book_params)

    #binding.pry

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

  # PATCH/PUT /books/1
  # PATCH/PUT /books/1.json
  def update

    respond_to do |format|
      if @book.update(book_params)
        format.html { redirect_to @book, notice: 'Book was successfully updated.' }
        format.json { head :no_content }
      else
        format.html { render action: 'edit' }
        format.json { render json: @book.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /books/1
  # DELETE /books/1.json
  def destroy
    @book.destroy
    respond_to do |format|
      format.html { redirect_to books_url }
      format.json { head :no_content }
    end
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_book
      @book = Book.find(params[:id])
      #@book = Book.friendly.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def book_params
      params.require(:book).permit(:title, :synopsis, :body, :age, :publisher, :jacket_cover, :story_id, :author_id, :gallery_id, :school_id, schools_attributes: [:id, :address, :school_name, :website, :_destroy], author_attributes: [:name,:biography], :gallery_attributes => [:name, :id, :_destroy, :images_attributes => [:id, :file, :_destroy] ] )
    end
end

gistfile1.txt