update to support rails 5.1

db/migrate/20091020182940_create_wishlists.rb

@@ -1,4 +1,4 @@
-class CreateWishlists < ActiveRecord::Migration
+class CreateWishlists < SpreeExtension::Migration[4.2]
   def self.up
     create_table :wishlists do |t|
       t.references :user

db/migrate/20091020183520_create_wished_products.rb

@@ -1,4 +1,4 @@
-class CreateWishedProducts < ActiveRecord::Migration
+class CreateWishedProducts < SpreeExtension::Migration[4.2]
   def self.up
     create_table :wished_products do |t|
       t.references :variant

db/migrate/20111130204731_prefix_wishlist_tables_with_spree.rb

@@ -1,4 +1,4 @@
-class PrefixWishlistTablesWithSpree < ActiveRecord::Migration
+class PrefixWishlistTablesWithSpree < SpreeExtension::Migration[4.2]
   def change
     rename_table :wishlists, :spree_wishlists
     rename_table :wished_products, :spree_wished_products

db/migrate/20140403013413_remove_wished_products_for_deleted_variants.rb

@@ -1,4 +1,4 @@
-class RemoveWishedProductsForDeletedVariants < ActiveRecord::Migration
+class RemoveWishedProductsForDeletedVariants < SpreeExtension::Migration[4.2]
   def up
     Spree::WishedProduct.includes(:variant).find_each do |wished_product|
       wished_product.destroy unless wished_product.variant

db/migrate/20140422003308_add_index_to_wishlists.rb

@@ -1,4 +1,4 @@
-class AddIndexToWishlists < ActiveRecord::Migration
+class AddIndexToWishlists < SpreeExtension::Migration[4.2]
   def change
     add_index :spree_wishlists, [:user_id]
     add_index :spree_wishlists, [:user_id, :is_default]

db/migrate/20150805204533_add_quantity_to_wished_products.rb

@@ -1,4 +1,4 @@
-class AddQuantityToWishedProducts < ActiveRecord::Migration
+class AddQuantityToWishedProducts < SpreeExtension::Migration[4.2]
   def change
     add_column :spree_wished_products, :quantity, :integer, null: false, default: 1
   end

lib/spree_wishlist.rb

@@ -1,4 +1,5 @@
 require 'spree_core'
+require 'spree_extension'
 require 'spree_wishlist/engine'
 require 'spree_wishlist/version'
 require 'coffee_script'

spree_wishlist.gemspec

@@ -22,20 +22,25 @@ Gem::Specification.new do |s|
   s.require_path  = 'lib'
   s.requirements << 'none'
 
-  s.add_runtime_dependency 'spree_core', '~> 3.1.0.beta'
+  s.add_runtime_dependency 'spree_core', '>= 3.1.0', '< 4.0'
+  s.add_runtime_dependency 'spree_extension'
 
-  s.add_development_dependency 'factory_girl', '~> 4.4'
+  s.add_development_dependency 'factory_girl'
   s.add_development_dependency 'ffaker'
-  s.add_development_dependency 'rspec-rails',  '~> 3.2.0'
-  s.add_development_dependency 'sqlite3', '~> 1.3.10'
-  s.add_development_dependency 'capybara', '~> 2.4'
-  s.add_development_dependency 'poltergeist', '~> 1.6.0'
-  s.add_development_dependency 'database_cleaner', '~> 1.4.0'
-  s.add_development_dependency 'simplecov', '~> 0.9.0'
-  s.add_development_dependency 'shoulda-matchers', '~> 2.5'
-  s.add_development_dependency 'coffee-rails', '~> 4.0.0'
-  s.add_development_dependency 'sass-rails', '~> 5.0.0'
+  s.add_development_dependency 'rspec-rails'
+  s.add_development_dependency 'sqlite3'
+  s.add_development_dependency 'capybara'
+  s.add_development_dependency 'poltergeist'
+  s.add_development_dependency 'database_cleaner'
+  s.add_development_dependency 'simplecov'
+  s.add_development_dependency 'shoulda-matchers'
+  s.add_development_dependency 'coffee-rails'
+  s.add_development_dependency 'sass-rails'
   s.add_development_dependency 'guard-rspec'
   s.add_development_dependency 'pry-rails'
   s.add_development_dependency 'rubocop'
+  s.add_development_dependency 'mysql2'
+  s.add_development_dependency 'pg'
+  s.add_development_dependency 'appraisal'
 end
+