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mattconnolly / rails-backup-migrate

A gem providing a rake task for backing up and migrating databases and files between rails instances.
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What version of the YAML spec does this use? #3

Closed snoblenet closed 12 years ago

snoblenet commented 13 years ago

What version of the YAML spec does this use?

I ask because I tried dragging the YAML files to spec/fixtures for use as fixtures in Cucumber but first I find I have to reformat the files manually, to:

(i) Give each fixture a name (ii) Remove the hyphen before the ID entry (iii) Remove the three hyphens at the start of the file

This is as per http://api.rubyonrails.org/classes/Fixtures.html

mattconnolly commented 13 years ago

It's using whatever comes with ruby and is already required in by rails.

Each fixture doesn't have a name, because in a database records don't have names.

Check this out:

>> y = "rubyonrails:\n  id: 1\n  name: Ruby On Rails"
=> "rubyonrails:\n  id: 1\n  name: Ruby On Rails"
>> YAML.load(y)
=> {"rubyonrails"=>{"name"=>"Ruby On Rails", "id"=>1}}
>> y2 = YAML.load(y).to_yaml
=> "--- \nrubyonrails: \n  name: Ruby On Rails\n  id: 1\n"
>> YAML.load(y2)
=> {"rubyonrails"=>{"name"=>"Ruby On Rails", "id"=>1}}
>> YAML.load(y)
=> {"rubyonrails"=>{"name"=>"Ruby On Rails", "id"=>1}}

It appears to me that the leading three dashes won't make a difference. But rails' fixtures may certainly be looking for specific things in the yml files.

This tool is designed for getting data from a database to yml and back again. Sounds like it wouldn't be too hard to have a script that would convert these into fixtures (naming them by a key field perhaps), although that's ancillary to my objectives for this gem. (Forks & patches welcome).