If you've got a boat load of legacy fixtures laying around (and who doesn't?) it can be a pain now that Rails handles the ID of objects so you don't have to.
On the train back from holiday I wrote a snippet of code to migrate them:
RUBY:
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def Util.real_yml(klass,col = 'name')
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y = YAML.load_file(File.join(RAILS_ROOT,'test','fixtures',"#{klass.to_s.tableize}.yml"))
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real_names = y.inject([]) { |names,(key,val)| names <<y[key][col] if y[key][col] ;names }
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real_objs = klass.find :all, :conditions => [ "#{col} IN (?)",real_names ],
rder => "#{col} asc" -
yml = ""
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real_objs.each do |real_obj|
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yml += "#{real_obj.name.downcase.gsub(' ','_').gsub('-','')}:\n"
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real_obj.attributes.each do |k,v|
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if k =~ /_id$/ && real_obj.respond_to?(k.gsub(/_id$/,'').to_sym) && ! v.nil?
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n_klass = k.gsub(/_id$/,'').camelize.constantize.find(v) rescue nil
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key = k.gsub(/_id$/,'')
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val = n_klass.name.downcase.gsub(' ','_').gsub('-','')
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yml += " #{key}: #{val}\n"
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else
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yml += " #{k}: #{v}\n" unless k.to_s == 'id'
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end
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end
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end
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yml
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end
The use is:
RUBY:
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require 'util'
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print Util.real_yml(Corporation)
Copy/paste into corporations.yml
So far it's working great!
