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[Rails Tip] DataMapper M:M Association Bug and Workaround

April 26, 2010|1 Min Read|Comments|

So for instance, the following code would generate an SQL error:

type.jobs.all(:"country.name".like => "%#{params[:location]}%")

There is a workaround, however the workaround requires manual looping of the dataset thus produces N+1 queries.

type.jobs.all.reject do |job|
! job.country.name.downcase.include?(params[:location].downcase)
end

But at least it works. ;)

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