[英]How do you connect MySQL to Ruby on Rails?
I followed this post, http://blog.teamtreehouse.com/installing-ruby-rails-and-mysql-on-os-x-lion . 我关注了这篇帖子, http://blog.teamtreehouse.com/installing-ruby-rails-and-mysql-on-os-x-lion 。
I have been learning Ruby and Rails for a month, so I am quite familiar with Ruby. 我已经学习Ruby和Rails一个月了,所以我对Ruby非常熟悉。 I also know some parts of Rails due to the understandings acquired by following several tutorials.
我也了解Rails的某些部分,这归因于通过以下几篇教程获得的理解。
However, I continuously fail to gem install mysql
or gem install mysql2
prior to rails new photos -d mysql
. 但是,在使用
rails new photos -d mysql
之前,我一直无法执行gem install mysql
或gem install mysql2
。
I already successfully finished brew install mysql
and checked mysql -u root
. 我已经成功完成
brew install mysql
并检查了mysql -u root
。
seodongju@Seoui-MacBook-Pro ~/Desktop/Projects$ sudo gem install mysql2
Password:
Building native extensions. This could take a while...
ERROR: Error installing mysql2: ERROR: Failed to build gem native extension.
/usr/local/rvm/rubies/ruby-2.0.0-p247/bin/ruby extconf.rb
checking for rb_thread_blocking_region()... yes checking for rb_wait_for_single_fd()... yes checking for rb_hash_dup()... yes checking for rb_intern3()... yes checking for mysql.h... no
checking for mysql/mysql.h... no
mysql.h is missing. please check your installation of mysql and try again.
*** extconf.rb failed *** Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options.
Provided configuration options: --with-opt-dir --with-opt-include --without-opt-include=${opt-dir}/include --with-opt-lib --without-opt-lib=${opt-dir}/lib --with-make-prog --without-make-prog --srcdir=. --curdir --ruby=/usr/local/rvm/rubies/ruby-2.0.0-p247/bin/ruby --with-mysql-config --without-mysql-config
Gem files will remain installed in /usr/local/rvm/gems/ruby-2.0.0-p247/gems/mysql2-0.3.13 for inspection. Results logged to /usr/local/rvm/gems/ruby-2.0.0-p247/gems/mysql2-0.3.13/ext/mysql2/gem_make.out
You should install MySQL on your machine first 您应该先在机器上安装MySQL
Take it from here 从这里拿走
http://dev.mysql.com/downloads/installer http://dev.mysql.com/downloads/installer
After installing it install the Gem 安装后,安装宝石
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