Fix count with eager_load

activerecord-mysql-index-hint.gemspec

@@ -22,5 +22,5 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'rake'
   spec.add_development_dependency 'appraisal'
   spec.add_development_dependency 'rspec'
-  spec.add_development_dependency 'mysql2', '= 0.4.1'
+  spec.add_development_dependency 'mysql2', '>= 0.3.18', '< 0.5'
 end

lib/activerecord-mysql-index-hint.rb

@@ -17,7 +17,7 @@ def ignore_index(*args)
   def from_with_index_hint(hint_type, *args)
     return self if args.blank?
     indexes = args.map {|index| connection.quote_column_name index }
-    self.from("#{quoted_table_name} #{hint_type} INDEX(#{indexes.join(', ')})")
+    self.from([Arel.sql("#{quoted_table_name} #{hint_type} INDEX(#{indexes.join(', ')})")])
   end
 end
 

spec/activerecord-mysql-index-hint_spec.rb

@@ -1,21 +1,30 @@
 require 'active_record'
-require 'mysql2'
 require 'active_record/connection_adapters/mysql2_adapter'
 require 'activerecord-mysql-index-hint'
 
-#module Mysql2
-#  class Client
-#    def initialize(opts={})
-#      @query_options = @@default_query_options.dup.merge opts
-#    end
-#  end
-#end
-
-ActiveRecord::ConnectionAdapters::Mysql2Adapter.class_eval do
-  def quote_string(string)
-    string
+module ActiveRecord
+  module ConnectionHandling
+    prepend Module.new {
+      def mysql2_connection(config)
+        ConnectionAdapters::Mysql2Adapter.new(nil, logger, nil, config)
+      end
+    }
   end
-  def configure_connection
+
+  module ConnectionAdapters
+    class Mysql2Adapter
+      prepend Module.new {
+        def quote_string(string)
+          string
+        end
+
+        def reconnect!
+        end
+
+        def configure_connection
+        end
+      }
+    end
   end
 end