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ActiveRecord Store for Postgres' JSON data type
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| module ActiveRecord | |
| module PgJsonStore | |
| extend ActiveSupport::Concern | |
| module ClassMethods | |
| # | |
| # Store (JSON) using Postgres | |
| # JSON data type. | |
| # | |
| # Inspired by: http://api.rubyonrails.org/classes/ActiveRecord/Store.html | |
| # | |
| # Example: | |
| # | |
| # class User < ActiveRecord::Base | |
| # include ActiveRecord::PgJsonStore | |
| # | |
| # pg_json_store :address, accessors: [:street1, | |
| # :street2, :city, :state, :postal, :country] | |
| # end | |
| # | |
| # User.new(city: "San Diego", state: "CA") | |
| # => #<User address: {"city"=>"San Diego", "state"=>"CA"}> | |
| # | |
| def pg_json_store(column, options = {}) | |
| column = column.to_sym | |
| accessors = options.delete(:accessors) | |
| store_accessor(column, accessors) if accessors | |
| # # def address | |
| # # read_attribute(:address) || Hash.new | |
| # # end | |
| # define_method("#{column}") do | |
| # read_attribute(column) || Hash.new | |
| # end | |
| # [*accessors].each do |accessor| | |
| # accessor = accessor.to_sym | |
| # # def city | |
| # # read_store_attribute(:address, 'city') | |
| # # end | |
| # define_method("#{accessor}") do | |
| # read_store_attribute(column, accessor) | |
| # end | |
| # # def city=(val) | |
| # # write_store_attribute(:address, 'city', val) | |
| # # end | |
| # define_method("#{accessor}=") do |val| | |
| # write_store_attribute(column, accessor, val) | |
| # end | |
| # end | |
| end | |
| end | |
| end | |
| end |
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