Primary Import Key DataMapper

Question

I am running an import script that imports a dump of a CSV database into a local sqlite database using DataMapper.

My models look like this:

class Staff

    include DataMapper::Resource

    property  :staff_id, String, :key => true
    property  :full_name, String

end

class Project

  include DataMapper::Resource

  property  :project_id, Integer, :key => true
  property  :title, String
  property  :status, String

 belongs_to  :staff

end

The CSV contains the primary key, so when I import, I use it as a key. The next time I start the import, I clear the tables and start again, however the datamapper groans because the primary keys are already done.

Is there a way to stop the datamapper moaning about this or should I just delete the .db file and recreate an empty .db file just before starting the import? If so, what is the easiest way to do this.

Answer 1

DataMapper.auto_migrate! , , . .

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DataMapper.finalize.auto_migrate!

Answer 2

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