Rails3でMySQL
Rails3にしてからMySQLへの接続ができなくなっていたので調べてみた。
取りあえず、動くようになったのでメモです。
database.ymlを変更
adapterをmysqlからmysql2に変更。
development: # adapter: sqlite3 # database: db/development.sqlite3 # pool: 5 # timeout: 5000 adapter: mysql2 database: test1_development username: hedgehog password: hogehoge host: localhost encoding: utf8
Gamfileにmysql2を追加
gem 'mysql2'
bundleを実行
$ bundle Fetching source index for http://rubygems.org/ /Users/kuru/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler.rb:207: warning: Insecure world writable dir /usr/local in PATH, mode 040777 Using rake (0.9.2.2) Using multi_json (1.0.3) Using activesupport (3.1.1) Using builder (3.0.0) Using i18n (0.6.0) Using activemodel (3.1.1) Using erubis (2.7.0) Using rack (1.3.5) Using rack-cache (1.1) Using rack-mount (0.8.3) Using rack-test (0.6.1) Using hike (1.2.1) Using tilt (1.3.3) Using sprockets (2.0.3) Using actionpack (3.1.1) Using mime-types (1.17.2) Using polyglot (0.3.3) Using treetop (1.4.10) Using mail (2.3.0) Using actionmailer (3.1.1) Using arel (2.2.1) Using tzinfo (0.3.30) Using activerecord (3.1.1) Using activeresource (3.1.1) Using ansi (1.4.0) Using bundler (1.0.12) Using coffee-script-source (1.1.2) Using execjs (1.2.9) Using coffee-script (2.2.0) Using rack-ssl (1.3.2) Using json (1.6.1) Using rdoc (3.11) Using thor (0.14.6) Using railties (3.1.1) Using coffee-rails (3.1.1) Using jquery-rails (1.0.16) Installing mysql2 (0.3.7) with native extensions Using rails (3.1.1) Using sass (3.1.10) Using sass-rails (3.1.4) Using sqlite3 (1.3.4) Using turn (0.8.3) Using uglifier (1.0.4) Your bundle is complete! Use `bundle show [gemname]` to see where a bundled gem is installed.
scaffoldするとエラーになる
/Users/kuru/.rvm/gems/ruby-1.9.2-p180/gems/mysql2-0.3.7/lib/mysql2.rb:9:in `require': dlopen(/Users/kuru/.rvm/gems/ruby-1.9.2-p180/gems/mysql2-0.3.7/lib/mysql2/mysql2.bundle, 9): Library not loaded: libmysqlclient.18.dylib (LoadError) Referenced from: /Users/kuru/.rvm/gems/ruby-1.9.2-p180/gems/mysql2-0.3.7/lib/mysql2/mysql2.bundle Reason: image not found - /Users/kuru/.rvm/gems/ruby-1.9.2-p180/gems/mysql2-0.3.7/lib/mysql2/mysql2.bundle from /Users/kuru/.rvm/gems/ruby-1.9.2-p180/gems/mysql2-0.3.7/lib/mysql2.rb:9:in `<top (required)>' from /Users/kuru/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/runtime.rb:68:in `require' from /Users/kuru/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/runtime.rb:68:in `block (2 levels) in require' from /Users/kuru/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/runtime.rb:66:in `each' from /Users/kuru/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/runtime.rb:66:in `block in require' from /Users/kuru/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/runtime.rb:55:in `each' from /Users/kuru/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/runtime.rb:55:in `require' from /Users/kuru/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler.rb:120:in `require' from /Users/kuru/Documents/00_Projects/_dev01/01.atotok_webapp/study/test1/config/application.rb:7:in `<top (required)>' from /Users/kuru/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.1.1/lib/rails/commands.rb:21:in `require' from /Users/kuru/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.1.1/lib/rails/commands.rb:21:in `<top (required)>' from script/rails:6:in `require' from script/rails:6:in `<main>'
ライブラリの install name を書き換える
$ sudo install_name_tool -change libmysqlclient.18.dylib /usr/local/mysql/lib/libmysqlclient.18.dylib /Users/kuru/.rvm/gems/ruby-1.9.2-p180/gems/mysql2-0.3.7/lib/mysql2/mysql2.bundle
db:migrateするとエラーなる
$ rake db:migrate /Users/kuru/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/runtime.rb:136: warning: Insecure world writable dir /usr/local in PATH, mode 040777 rake aborted! Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2) Tasks: TOP => db:migrate (See full trace by running task with --trace)
database.ymlを修正
database.ymlのhostをlocalhostから127.0.0.1に修正し、rake db:migrateすると正常に実行できた
修正前のdatabase.yml
host: loaclhost
修正後のdatabase.yml
host: 127.0.0.1
