Simple question on referencing another table


#1

Hi,

I want to create a page which will show all the resigtered users. I
have two tables one users and another one country table. Each user has
a foreign key to country table. When I display the users information,
I want to show the user name and the country name. How can I do it in
ruby? Is there a document somewhere to handle database operations like
this?

Thanks


#2

DBC User wrote:

Hi,

I want to create a page which will show all the resigtered users. I
have two tables one users and another one country table. Each user has
a foreign key to country table. When I display the users information,
I want to show the user name and the country name. How can I do it in
ruby? Is there a document somewhere to handle database operations like
this?

Thanks

You want to look at belongs_to and has_many of ActiveRecord. I don’t
have a quick example but it is really easy.

In the migration for the users table, add a integer column of
country_id. You do not add anything to the country migration. Then in
the User model, add a “belongs_to country” line. In the Country model,
add a “has_many users” line.

Then you can do something like:

u = Users.find(id)
puts u.country.name

All the magic will happen.


#3

On Jul 21, 2:17 pm, Perry S. removed_email_address@domain.invalid
wrote:

Thanks

u = Users.find(id)
puts u.country.name

All the magic will happen.


Posted viahttp://www.ruby-forum.com/.

Thanks and yes thats what I was looking for and got it working.