How convert string to hash with array?

Question

How convert this string (it's one string from db) to hash with array?

---
fl:
- 
- 500.0
price:
- 2162.72
- 2152.72
period:
- 
- 3 weeks

I got this data by doing this:

changes_data = box.changes.to_hash
changes_data.each do |key, val|
  if val[0].eql? val[1]
    changes_data.delete(key)
  else
    changes_data[key] = val.to_a
  end
end

But now I don't know how to convert back. I want get maybe this:

{:fl => ['0', '500.0'], :price=>['2162.72','2152.72'],.......}

or convert to object box

are you using an ORM to comment to the database (such as ActiveRecord)? — Nathan Wallace
– Nathan Wallace, Commented Aug 25, 2014 at 16:52
No. I have two objects. They were compared, and the difference is sent to the database in a separate . — user3834491
– user3834491, Commented Aug 25, 2014 at 17:08
Yes, it seems you are right. This YML. Sorry, I just started to learn. — user3834491
– user3834491, Commented Aug 25, 2014 at 17:12
Are you using serialize in your model or are you just throwing some random Hash into a string column? — mu is too short
– mu is too short, Commented Aug 25, 2014 at 17:13

Nathan Wallace · Accepted Answer · 2014-08-25 19:22:06Z

1

Looks like your data is just YAML. So you can do this:

require 'yaml'

serialized_str = ... # retrieve the serialized string from the database
deserialized_hash = YAML.parse(serialized_str).to_ruby

deserialized_hash.class # => Hash

Ruby Docs

answered Aug 25, 2014 at 19:22

Nathan Wallace

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