`socket`声明在Rails应用程序的database.yml文件中做什么？

Question

I have downloaded a database to my desktop (I am using OSX)

I need to create rails app that uses this database, I am sorry if this question is so simple I am new to rails! I think that this socket: is the path to the database, is this correct?

development:
  adapter: mysql2
  encoding: utf8
  database: ttlem_demo_development
  pool: 5
  username: root
  password:
  socket: /tmp/mysql.sock

Answer 1

Your file seems to be correct. If you want to connect on localhost, you'll need to add this line

hostname: 127.0.0.1

to your file.

Note that the database.yml you provide contains only a section for development. You can add other section like 'test' or 'production'. You can see an example here .

I also found a good explanation of a socket here . Hope that will help you.