在Rails 4中无法连接到MySQL数据库

Question

I'm new to Rails and I'm going through a tutorial on Lynda.com, Rails 4 Essentials. I'm on a Windows 7 x64 machine and I'm trying to connect the MySQL database to the Rails app. I've successfully created the database and created a new user.

I had issues running the mysql2 gem and I could only get version 0.3.11 to work (it's on version 0.3.16 as of this post). I copied the libmysql.dll from the C:\\Program Files\\MySQL\\MySQL Connector.C 6.1\\lib to my C:\\RailsInstaller\\Ruby2.0.0\\bin directory as the instructions stated.

Everything seems to be ok at this point.

I configured my database.yml file to match my database credentials (I had to create this from scratch, nothing was generated when I ran mysql2).

 #config\\database.yml development: adapter: mysql2 database: simple_cms_development username: craig password: password host: 127.0.0.1 socket: /tmp/mysql.sock test: adapter: mysql2 database: simple_cms_test username: craig password: password host: 127.0.0.1 socket: /tmp/mysql.sock production: adapter: mysql2 database: simple_cms_production username: craig password: password host: 127.0.0.1 socket: /tmp/mysql.sock 

I got to try to connect my database with MySQL using:

 rake db:schema:dump 

and I get this crap:

 LoadError: cannot load such file -- mysql2/2.0/mysql2 

I see a directory called mysql2/1.9 and there is a file called mysql.so in there but there is no 2.0.

Any ideas? Thanks!

Answer 1

The joys of developing on a windows machine :)

I suggest you check this question - it looks like the same problem.

Error "...cannot load such file -- mysql2/2.0/mysql2 (LoadError)". On Windows XP with Ruby 2.0.0

Answer 2

I managed to get passed this issue by starting fresh. I followed these set of videos to set up Ruby, MySQL, and Rails on my Windows 7 x64 machine.

http://youtu.be/C5S7vjN6GLc

Worked like a gem, I'm rockin' and rollin' now.