Add rails 5.0.0 alpha support

.gitignore

@@ -9,3 +9,5 @@ tmp*.sw?
 tmp
 *.gem
 *.lock
+
+/.idea

Appraisals

@@ -14,3 +14,8 @@ appraise "activerecord-4.2" do
   gem "railties", github: "rails/rails" , branch: '4-2-stable'
   gem "activerecord", github: "rails/rails"  , branch: '4-2-stable'
 end
+
+appraise "activerecord-5.0" do
+  gem "railties", github: "rails/rails" , branch: 'master'
+  gem "activerecord", github: "rails/rails"  , branch: 'master'
+end

acts-as-taggable-on.gemspec

@@ -22,7 +22,7 @@ Gem::Specification.new do |gem|
     gem.post_install_message = File.read('UPGRADING.md')
   end
 
-  gem.add_runtime_dependency 'activerecord',  ['>= 3.2', '< 5']
+  gem.add_runtime_dependency 'activerecord', ['>= 3.2', '< 5']
 
   gem.add_development_dependency 'sqlite3'
   gem.add_development_dependency 'mysql2', '~> 0.3.7'

gemfiles/activerecord_5.0.gemfile

@@ -0,0 +1,18 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+# You can change the gem to your local path with `gem 'arel', path: 'local_gem_path'`
+gem 'arel', github: "rails/arel" , branch: 'master'
+gem "railties", github: "rails/rails" , branch: 'master'
+gem "activerecord", github: "rails/rails" , branch: 'master'
+
+group :local_development do
+  gem "guard"
+  gem "guard-rspec"
+  gem "appraisal"
+  gem "rake"
+  gem "byebug", :platform => :mri_22
+end
+
+gemspec :path => "../"

lib/acts-as-taggable-on.rb

@@ -73,9 +73,7 @@ def initialize
     end
 
     def strict_case_match=(force_cs)
-      if @force_binary_collation == false
-        @strict_case_match = force_cs
-      end
+      @strict_case_match = force_cs unless @force_binary_collation
     end
 
     def delimiter=(string)
@@ -89,7 +87,7 @@ def delimiter=(string)
 
     def force_binary_collation=(force_bin)
       if Utils.using_mysql?
-        if force_bin == true
+        if force_bin
           Configuration.apply_binary_collation(true)
           @force_binary_collation = true
           @strict_case_match = true
@@ -103,9 +101,7 @@ def force_binary_collation=(force_bin)
     def self.apply_binary_collation(bincoll)
       if Utils.using_mysql?
         coll = 'utf8_general_ci'
-        if bincoll == true
-          coll = 'utf8_bin'
-        end
+        coll = 'utf8_bin' if bincoll
         begin
           ActiveRecord::Migration.execute("ALTER TABLE tags MODIFY name varchar(255) CHARACTER SET utf8 COLLATE #{coll};")
         rescue Exception => e

lib/acts_as_taggable_on/compatibility.rb

@@ -1,6 +1,6 @@
 module ActsAsTaggableOn::Compatibility
   def has_many_with_taggable_compatibility(name, options = {}, &extention)
-    if ActsAsTaggableOn::Utils.active_record4?
+    if ActsAsTaggableOn::Utils.active_record4? || ActsAsTaggableOn::Utils.active_record5?
       scope, opts = build_taggable_scope_and_options(options)
       has_many(name, scope, opts, &extention)
     else

lib/acts_as_taggable_on/taggable/collection.rb

@@ -169,9 +169,12 @@ def tag_counts_on(context, options={})
     end
 
     module CalculationMethods
-      def count(column_name=:all, options = {})
+      # Rails 5 TODO: Remove options argument as soon we remove support to
+      # activerecord-deprecated_finders.
+      # See https://github.com/rails/rails/blob/master/activerecord/lib/active_record/relation/calculations.rb#L38
+      def count(column_name = :all, options = {})
         # https://github.com/rails/rails/commit/da9b5d4a8435b744fcf278fffd6d7f1e36d4a4f2
-        super
+        ActsAsTaggableOn::Utils.active_record5? ? super(column_name) : super(column_name, options)
       end
     end
   end

lib/acts_as_taggable_on/taggable/core.rb

@@ -246,6 +246,14 @@ def adjust_taggings_alias(taggings_alias)
       def taggable_mixin
         @taggable_mixin ||= Module.new
       end
+
+      private
+
+      # Rails 5 has merged sanitize and quote_value
+      # See https://github.com/rails/rails/blob/master/activerecord/lib/active_record/sanitization.rb#L10
+      def quote_value(value, column = nil)
+        ActsAsTaggableOn::Utils.active_record5? ? super(value) : super(value, column)
+      end
     end
 
     # all column names are necessary for PostgreSQL group clause

lib/acts_as_taggable_on/utils.rb

@@ -25,6 +25,10 @@ def active_record4?
         ::ActiveRecord::VERSION::MAJOR == 4
       end
 
+      def active_record5?
+        ::ActiveRecord::VERSION::MAJOR == 5
+      end
+
       def like_operator
         using_postgresql? ? 'ILIKE' : 'LIKE'
       end

spec/support/database.rb

@@ -15,7 +15,7 @@
   begin
     #activerecord 4 uses symbol
     #TODO, remove when activerecord 3 support is dropped
-    if ActsAsTaggableOn::Utils.active_record4?
+    if ActsAsTaggableOn::Utils.active_record4? || ActsAsTaggableOn::Utils.active_record5?
       ActiveRecord::Base.establish_connection(db_name.to_sym)
     else
       ActiveRecord::Base.establish_connection(db_name)