Migrate to Alchemy 4.1

Use the new Taggable module and remove cached_tag_list as this is not
supported from Gutentag (the new tagging library Alchemy 4.1 now uses)

Author: tvdeyen

app/models/alchemy/user.rb

@@ -1,5 +1,4 @@
 require 'devise/orm/active_record'
-require 'acts-as-taggable-on'
 require 'userstamp'
 
 module Alchemy
@@ -19,8 +18,7 @@ class User < ActiveRecord::Base
 
     devise *Alchemy.devise_modules
 
-    acts_as_taggable
-    acts_as_tagger
+    include Alchemy::Taggable
 
     attr_accessor :send_credentials
 

spec/dummy/db/migrate/20141119205157_add_taggings_counter_cache_to_tags.alchemy.rb

@@ -3,6 +3,9 @@ class AddTaggingsCounterCacheToTags < ActiveRecord::Migration[4.2]
   def self.up
     add_column :tags, :taggings_count, :integer, default: 0
 
+    # inserted by Alchemy CMS upgrader
+    return unless defined?(ActsAsTaggableOn)
+
     ActsAsTaggableOn::Tag.reset_column_information
     ActsAsTaggableOn::Tag.find_each do |tag|
       ActsAsTaggableOn::Tag.reset_counters(tag.id, :taggings)

spec/dummy/db/migrate/20160518190427_change_collation_for_tag_names.acts_as_taggable_on_engine.rb

@@ -3,6 +3,9 @@
 # work properly
 class ChangeCollationForTagNames < ActiveRecord::Migration[4.2]
   def up
+    # inserted by Alchemy CMS upgrader
+    return unless defined?(ActsAsTaggableOn)
+
     if ActsAsTaggableOn::Utils.using_mysql?
       execute("ALTER TABLE tags MODIFY name varchar(255) CHARACTER SET utf8 COLLATE utf8_bin;")
     end

spec/dummy/db/migrate/20180226170403_remove_cached_tag_list_from_alchemy_users.rb

@@ -0,0 +1,5 @@
+class RemoveCachedTagListFromAlchemyUsers < ActiveRecord::Migration[5.0]
+  def change
+    remove_column :alchemy_users, :cached_tag_list, :text
+  end
+end