Created
June 8, 2014 08:33
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Returns the difference between two hashes, much like ActiveRecord attribute changes.
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| def hash_diff(hash_a, hash_b) | |
| hash_changes = {} | |
| (hash_a.keys + hash_b.keys).uniq.each do |key| | |
| if hash_a[key] != hash_b[key] | |
| hash_changes[key] = [hash_a[key], hash_b[key]] | |
| end | |
| end | |
| hash_changes | |
| end |
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