Sometimes a full SQL database or even SQLite is too much for the job. Did you know ruby has at lots of other built-in methods for file storage? In this article I will describe the best 3 in my opinion.
First is SDBM which is a simple file-based key-value store. It only stores string keys and string values.
require 'yaml/store'
store = YAML::Store.new('my_database.yaml') # Create or Load my_database.yaml file
# Get Store Data
my_var = store.transaction{store[:my_var]}
# Save Data
store.transaction do
store[:foo] = 'bar'
store[:greeting] = ['Hello','World']
store[:amount] = 1.56
store[:last_accessed] = Time.now
# Save Changes
store.commit
# Abort Changes
store.abort
# Read more at the docs at http://ruby-doc.org/stdlib-2.2.3/libdoc/yaml/rdoc/YAML/Store.html
end
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