Error page for generating matches, cannot have more than 16 for Pool to bracket tournaments

app/controllers/tournaments_controller.rb

@@ -1,8 +1,8 @@
 class TournamentsController < ApplicationController
-  before_action :set_tournament, only: [:teampointadjust,:remove_teampointadjust,:remove_school_delegate,:remove_delegate,:school_delegate,:delegate,:matches,:weigh_in,:weigh_in_weight,:create_custom_weights,:show,:edit,:update,:destroy,:up_matches,:no_matches,:team_scores,:brackets,:generate_matches,:bracket,:all_brackets]
+  before_action :set_tournament, only: [:error,:teampointadjust,:remove_teampointadjust,:remove_school_delegate,:remove_delegate,:school_delegate,:delegate,:matches,:weigh_in,:weigh_in_weight,:create_custom_weights,:show,:edit,:update,:destroy,:up_matches,:no_matches,:team_scores,:brackets,:generate_matches,:bracket,:all_brackets]
   before_filter :check_access_manage, only: [:teampointadjust,:remove_teampointadjust,:remove_school_delegate,:school_delegate,:weigh_in,:weigh_in_weight,:create_custom_weights,:update,:edit,:generate_matches,:matches]
   before_filter :check_access_destroy, only: [:destroy,:delegate,:remove_delegate]
-
+  before_filter :check_tournament_errors, only: [:generate_matches]
   before_filter :check_for_matches, only: [:up_matches,:bracket,:all_brackets]
   
   def remove_teampointadjust
@@ -229,6 +229,9 @@ class TournamentsController < ApplicationController
       format.json { head :no_content }
     end
   end
+  
+  def error
+  end
 
   private
     # Use callbacks to share common setup or constraints between actions.
@@ -257,4 +260,13 @@ class TournamentsController < ApplicationController
     	end
     end
   end
+  
+  def check_tournament_errors
+    if @tournament.tournamentMatchGenerationError != nil
+      respond_to do |format|
+        format.html { redirect_to "/tournaments/#{@tournament.id}/error" }
+      end
+    end
+  end
+  
 end

app/models/tournament.rb

@@ -109,4 +109,26 @@ class Tournament < ActiveRecord::Base
 	      end
 	    end
   	end
+  	
+  	def poolToBracketWeightsWithTooManyWrestlers
+  		if self.tournament_type == "Pool to bracket"
+  			weights.select{|w| w.wrestlers.size > 16}
+  		else
+  			nil
+  		end
+  	end
+  	
+  	def tournamentMatchGenerationError
+  		errorString = "There is a tournament error."
+  		if poolToBracketWeightsWithTooManyWrestlers != nil
+  			errorString = errorString + " The following weights have too many wrestlers "
+  			poolToBracketWeightsWithTooManyWrestlers.each do |w|
+  				errorString = errorString + "#{w.max} "
+  			end
+  			return errorString
+  		else
+  			nil
+  		end
+  	end
+  	
 end

app/views/tournaments/error.html.erb

@@ -0,0 +1,3 @@
+<%= link_to "Back to #{@tournament.name}", "/tournaments/#{@tournament.id}", :class=>"btn btn-default" %>
+<br><br>
+<%= @tournament.tournamentMatchGenerationError %>

config/routes.rb

@@ -49,6 +49,7 @@ Wrestling::Application.routes.draw do
   get 'tournaments/:id/teampointadjust' => 'tournaments#teampointadjust'
   post 'tournaments/:id/teampointadjust' => 'tournaments#teampointadjust'
   delete 'tournaments/:id/:teampointadjust/remove_teampointadjust' => 'tournaments#remove_teampointadjust'
+  get 'tournaments/:id/error' => 'tournaments#error'
   
   # Example of regular route:
   #   get 'products/:id' => 'catalog#view'