Introduce a conflicts controller

app/controllers/conflicts_controller.rb

@@ -0,0 +1,5 @@
+class ConflictsController < ApplicationController
+  def index
+    @talks = Talk.find(:all, from: :halfnarp_friendly).sort_by(&:title)
+  end
+end

app/views/conflicts/index.csv.erb

@@ -0,0 +1,5 @@
+<%- csv_headers = ['Event'] + @talks.map { |talk| [talk.title, talk.id].join(' ') } -%>
+<%= CSV.generate_line(csv_headers).html_safe -%>
+<%- @talks.each do |left| -%>
+  <%= CSV.generate_line([[left.title, left.id].join(' ')] + @talks.map { |right| left.id == right.id ? '-' : ConflictCoefficient.new(left.id, right.id).per_cent}).html_safe -%>
+<%- end -%>

app/views/home/_conflict_coefficient.csv.erb

@@ -1 +0,0 @@
-<%= CSV.generate_line([conflict_coefficient.left, conflict_coefficient.right, conflict_coefficient.conflicts, conflict_coefficient.per_cent]).html_safe -%>

app/views/home/conflicts.csv.erb

@@ -1,3 +0,0 @@
-<%- headers = ['left', 'right', 'conflicts', '%'] -%>
-<%= CSV.generate_line headers -%>
-<%= render partial: 'conflict_coefficient', collection: @conflict_coefficients %>