Datamapper DataMapper

This ticket is being submitted at the request of dkubb on freenode/datamapper.

The issue is with deleting a record that has child records. Even after deleting all of the parents records in the join table the destroy still fails. I was able to work around this (under the advice of dkubb) by adding a .reload before finally destroying the parent.

In the mysql console I can see the constraings on the join table. From the console I am able to successfully delete the child records and then the parent.

@doc = Document.get(1)
begin
Document.transaction do
  #this is a simple app, only 2 models and one Resource/model
  #the following executes successfully
  unless @doc.document_tags.destroy
    raise 'document tags failed to be destroyed'
  end

  #the following fails unless its changed to @doc.reload.destroy
  unless @doc.destroy
    raise 'document destroy failed'
  end
end
rescue StandardError => e
  puts e
end

Please contact me on freenode if you require any additional information. -dev2