Use Sequel::Model subclass as base class for models

models.rb

@@ -22,8 +22,9 @@ module Giftsmas
   BCRYPT_COST = BCrypt::Engine::MIN_COST
 end
 
-Sequel::Model.plugin :prepared_statements
-Sequel::Model.plugin :prepared_statements_associations
+Model = Class.new(Sequel::Model)
+Model.plugin :prepared_statements
+Model.plugin :prepared_statements_associations
 
 %w'user event person gift'.each{|x| require ::File.expand_path("../models/#{x}", __FILE__)}
 end

models/event.rb

@@ -1,5 +1,5 @@
 module Giftsmas
-class Event < Sequel::Model(DB)
+class Event < Model
   many_to_one :user
   one_to_many :gifts, :eager=>[:receivers, :senders], :order=>:id
   many_to_many :senders, :class=>"Giftsmas::Person", :join_table=>:event_senders, :right_key=>:person_id, :order=>:name

models/gift.rb

@@ -1,5 +1,5 @@
 module Giftsmas
-class Gift < Sequel::Model(DB)
+class Gift < Model
   many_to_many :senders, :class=>"Giftsmas::Person", :join_table=>:gift_senders, :right_key=>:person_id, :order=>:name
   many_to_many :receivers, :class=>"Giftsmas::Person", :join_table=>:gift_receivers, :right_key=>:person_id, :order=>:name
   many_to_one :event

models/person.rb

@@ -1,5 +1,5 @@
 module Giftsmas
-class Person < Sequel::Model(DB)
+class Person < Model
   many_to_many :sender_events, :class=>"Giftsmas::Event", :join_table=>:event_senders, :right_key=>:event_id, :order=>:name
   many_to_many :receiver_events, :class=>"Giftsmas::Event", :join_table=>:event_receivers, :right_key=>:event_id, :order=>:name
   many_to_many :gifts_sent, :class=>"Giftsmas::Gift", :join_table=>:gift_senders, :right_key=>:gift_id, :order=>:inserted_at

models/user.rb

@@ -1,5 +1,5 @@
 module Giftsmas
-class User < Sequel::Model(DB)
+class User < Model
   one_to_many :events, :order=>:name
 
   def password=(new_password)