Tournament Management Help

player.rb

class Player < ActiveRecord::Base
  has_many :matches
  
  def all_matches
    where(self.matches.p1_id => self.id) && where(self.matches.p2_id => self.id)
  end
end

Schema

ActiveRecord::Schema.define(version: 20131006225214) do

  create_table "matches", force: true do |t|
    t.integer  "result"
    t.boolean  "checked_out", default: false
    t.boolean  "repeated",    default: false
    t.boolean  "planned",     default: true
    t.integer  "round"
    t.datetime "created_at"
    t.datetime "updated_at"
    t.integer  "p1_id"
    t.integer  "p2_id"
  end

  create_table "players", force: true do |t|
    t.integer  "in_tournament_id"
    t.boolean  "byed",             default: false
    t.integer  "matches",          default: 0
    t.datetime "created_at"
    t.datetime "updated_at"
  end

  create_table "tournaments", force: true do |t|
    t.boolean  "allow_repeat",      default: false
    t.boolean  "locked",            default: false
    t.integer  "number_players"
    t.integer  "rounds"
    t.integer  "matches_per_round"
    t.integer  "additional_rounds"
    t.integer  "round",             default: 0
    t.datetime "created_at"
    t.datetime "updated_at"
  end

end