Class: Pakyow::Support::IndifferentHash

Inherits:
SimpleDelegator
  • Object
show all
Defined in:
lib/pakyow/support/indifferentize.rb

Overview

Creates a Hash-like object can access stored data with symbol or

string keys.

The original hash is converted to symbol keys, which means

that a hash that originally contains a symbol and string key
with the same symbold value will conflict. It is not guaranteed
which value will be saved.

IndifferentHash instances have the same api as Hash, but any method

that would return a Hash, will return an IndifferentHash (with
the exception of to_h/to_hash).

NOTE: Please lookup Ruby’s documentation for Hash to learn what

methods are available.

Examples:

{ test: "test1", "test" => "test2" } => { test: "test2" }

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(hash = {}) ⇒ IndifferentHash

Returns a new instance of IndifferentHash.



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# File 'lib/pakyow/support/indifferentize.rb', line 103

def initialize(hash = {})
  self.internal_hash = hash
end

Class Method Details

.deep(object) ⇒ Object 



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# File 'lib/pakyow/support/indifferentize.rb', line 27

def deep(object)
  hash = object.to_h
  unless hash.empty?
    hash = hash.each_with_object({}) { |(key, value), new_hash|
      new_hash[key] = case value
      when Hash
        deep(value)
      when Array
        value.map { |value_item|
          case value_item
          when Hash
            deep(value_item)
          else
            value_item
          end
        }
      else
        value
      end
    }
  end

  self.new(hash)
end

Instance Method Details

#internal_hash ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/pakyow/support/indifferentize.rb', line 114

def internal_hash
  __getobj__
end

#pp(*args) ⇒ Object

Fixes an issue using pp inside a delegator.



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# File 'lib/pakyow/support/indifferentize.rb', line 141

def pp(*args)
  Kernel.pp(*args)
end

#to_h ⇒ Object Also known as: to_hash 



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# File 'lib/pakyow/support/indifferentize.rb', line 118

def to_h
  internal_hash.each_with_object({}) { |(key, value), new_hash|
    key = case key
    when String
      key.to_sym
    else
      key
    end

    value = case value
    when IndifferentHash
      value.to_h
    else
      value
    end

    new_hash[key] = value
  }
end