Add drawing#mood_rating validation to ensure between 1-5;

[mathildathompson]

Addresses issue: #129

What this does

• [x] Update validation to ensure drawing#mood_rating value is between 1-5;
• [x] Add rake task backfill_drawing_mood_rating_field to backfill existing mood ratings to be between 1-5;
• [x] Do not affect any drawings that were uploaded after the merged changes on 24 Oct 2016 to limit the mood rating box from 1-5
• [x] Add output to rake task

Screenshots

Deploy Instructions

Rake tasks can be run by running:

bundle exec rake backfill:mood_rating_field

• Backfill existing drawing#mood_rating data to convert from range 1-10 -> 1-5;

[mathildathompson]

@krissy please can you review when you have a chance :-)

[steverabino]

Will require an update to https://github.com/empowerhack/DrawMyLife-Service/blob/master/spec/models/drawing_spec.rb#L28 to fix that broken test

[steverabino]

Me and @krissy also spoke about whether the backfill rake task should be a database migration rather than a rake task - this would ensure that it is run when the code is updated on each environment, and also ensure that it is only ever run once on each environment

[steverabino]

@krissy @mathildathompson Can one or both of you take a peek and give a 👍 or 👎 on my commit made today? https://github.com/empowerhack/DrawMyLife-Service/pull/134/commits/f248c515bc75a2e3fe41d45fe52a42a1b8b1244e