Question

Let’s say I have a list of business objects listed in the array @businesses

I would like to find a list of employees that work at all the businesses listed in @businesses.

It seems that I can’t just do Employee.where(:business_id=>@businesses)

Is there a way to do the above that doesn’t involve code like

@businesses.each do |business|
  business.employees
end

Answer 1

Maybe something like:

Employee.find(:all, :conditions => { :business_id => @businesses.map(&:id) })

Or

Employee.where(:business_id => @businesses.map(&:id))