安装mysql作为gem

Question

i want to develop rails 3 apps using mysql on windows 7 (64 bit) and i have installed mysql via the msi download from the mysql site.

my question is that do i still need to install the mysql gem?

thanks

Answer 1

The mysql gem provides the ruby bindings, so yes, you need to install this.

With Rails 3 you should use the mysql2 gem rather than the mysql gem.

Answer 2

Here is a proper solution for anyone interested, that doesn't mess up your current installation of mysql server

1. Download a zip file with mysql server 5.1 NOT the msi one. Make sure it's 32-bit NOT 64-bit. ( From here )
2. Since there is no installer file with this, create a folder c:\\mysql-gem-install - you can remove it once you finish.
3. Extract all the files from the zip file into the folder you just created.

4. now run this command

   gem install mysql2 -- '--with-mysql-lib="c:\\mysql-gem-install\\lib\\opt" --with-mysql-include="c:\\mysql-gem-install\\include"'

I just installed mysql2 gem v. 0.3.7

Answer 3

Yes you do. The mysql gem is a ruby driver (interface) to connect to the mysql database.

You should use mysql2 gem instead with Rails3.