Where to set a variable so it's loaded only once and available for all controllers?

Rails
1

Hi,

I’m using GeoIP that loads database file with countries when the GeoIP
object is created. Where should I initialize this object, so it would
be loaded only once (not for every request) and available for all
controllers?

The code looks like this:
geo_ip = GeoIP.new("#{RAILS_ROOT}/public/GeoIP.dat")

Thanks in advance

2

I’m using GeoIP that loads database file with countries when the GeoIP
object is created. Where should I initialize this object, so it would
be loaded only once (not for every request) and available for all
controllers?

The code looks like this:
geo_ip = GeoIP.new("#{RAILS_ROOT}/public/GeoIP.dat")

Tail end of environment.rb. Or in one of the new initializer hooks that
helps keep it out of environment.rb.

You may want to make that GEO_IP to make it more obvious it’s “site
wide”.

3

If you put this into environment.rb or one of the new initializer
hooks how to prevent this from running for example if you do a rake
db:migrate?
Chances are that your tables (for your ActiveRecord Objects) are not
there and everything blow up…

Is there a way to ask rails if we run our environment as a migration?

Feurio

4

I’m using GeoIP that loads database file with countries when the GeoIP
object is created. Where should I initialize this object, so it would
be loaded only once (not for every request) and available for all
controllers?

You could put in the Application Controller.