Rails - Feb 2006 - HABTM SQL generated

I have a HABTM relationship between 2 tables : companies and services.


I want to find all the companies who provide a particular service so
I''m
using @companies =
Service.find_by_name(''servicename'').companies.

But in the development log, rails appears to be making 2 sql calls - one 
to find the id of the service and a 2nd to find the companies by that 
id.

How can i reduce it to one sql call ?


_Tony

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Anthony Green wrote:
> I have a HABTM relationship between 2 tables : companies and services.
> 
> I want to find all the companies who provide a particular service so
I''m
> using @companies =
Service.find_by_name(''servicename'').companies.
> 
> But in the development log, rails appears to be making 2 sql calls - one 
> to find the id of the service and a 2nd to find the companies by that 
> id.
> 
> How can i reduce it to one sql call ?
service = Service.find_by_name(''servicename'', :include =>
:companies)
@companies = service.companies if service

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