Module DataMapper::Ext::Hash
In: lib/dm-core/support/ext/hash.rb

Methods

except   except!   only   to_mash  

Public Class methods

Returns a hash that includes everything but the given keys.

@param [Hash] hash The hash from which to pick the key/value pairs. @param [Array] *keys The hash keys to exclude.

@return [Hash] A new hash without the specified keys.

@example

  hash = { :one => 1, :two => 2, :three => 3 }
  Ext::Hash.except(hash, :one, :two) # => { :three => 3 }

@api semipublic

Removes the specified keys from the given hash.

@param [Hash] hash The hash to modify. @param [Array] *keys The hash keys to exclude.

@return [Hash] hash

@example

  hash = { :one => 1, :two => 2, :three => 3 }
  Ext::Hash.except!(hash, :one, :two)
  hash # => { :three => 3 }

@api semipublic

Creates a hash with only the specified key/value pairs from hash.

@param [Hash] hash The hash from which to pick the key/value pairs. @param [Array] *keys The hash keys to include.

@return [Hash] A new hash with only the selected keys.

@example

  hash = { :one => 1, :two => 2, :three => 3 }
  Ext::Hash.only(hash, :one, :two) # => { :one => 1, :two => 2 }

@api semipublic

Converts the specified hash to a {Mash}.

@param [Hash] hash The hash to convert. @return [Mash] The {Mash} for the specified hash.

@api semipublic

[Validate]