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I have this string and I'm wondering how to convert it to a Hash.
"{:account_id=>4444, :deposit_id=>3333}"
772
The keys and value in hash tables are also . NET objects. They are most often strings or integers, but they can have any object type.
hashCode() method of String class can be used to convert a string into hash code. hashCode() method will return either negative or positive integer hash values.
The ActiveRecord#attributes is another method you can use. Given an active record, attributes returns a hash of all the attributes with their names as keys and the values of the attributes as values. The attributes method returns a hash where all the keys are strings.
Hash#to_hash() is a Hash class method which returns the self – hash representation of the hash. Syntax: Hash.to_hash() Parameter: Hash values. Return: self object.
The way suggested in miku's answer is indeed easiest and unsafest.
# DO NOT RUN IT
eval '{:surprise => "#{system \"rm -rf / \"}"}'
# SERIOUSLY, DON'T
Consider using a different string representation of your hashes, e.g. JSON or YAML. It's way more secure and at least equally robust.
141
With a little replacement, you may use YAML:
require 'yaml'
p YAML.load(
"{:account_id=>4444, :deposit_id=>3333}".gsub(/=>/, ': ')
)
But this works only for this specific, simple string. Depending on your real data you may get problems.
38
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