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class PurehasesController < ApplicationController
  before_action :authenticate_user!, only: [:index, :create]
  before_action :set_item, only: [:index, :create]
  before_action :set_purehase, only: [:index, :create]

def index
    @order = PurehaseShipping.new
    return redirect_to root_path if current_user.id == @item.user.id || @item.purehase.present?
  end

  def create
  end

  private

#一部省略


  def set_purehase
    if @item.purehase.present?
      redirect_to root_path
    end
end

return redirect_to root_path if current_user.id == @item.user.id || 

 def set_purehase
    if @item.purehase.present?
      redirect_to root_path
    end

def set_purehase
    return redirect_to root_path if current_user.id == @item.user.id || 　　　　@item.purehase.present?
  end