Class: ProperProperties::Properties

Inherits:
Hash
  • Object
show all
Defined in:
lib/proper_properties/properties.rb

Overview

Simple representation of a properties file content by an extension of a Hash object a la ActiveSupport::HashWithIndifferentAccess, with underlying symbol keys

Instance Method Summary collapse

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/proper_properties/properties.rb', line 55

def [](key)
  self.fetch(key)
end

#[]=(key, value) ⇒ Object

Assigns a new value to the hash:

hash = ProperProperties::Properties.new
hash[:key] = 'value'

This value can be later fetched using either :key or ‘key’.



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# File 'lib/proper_properties/properties.rb', line 12

def []=(key, value)
  super(convert_key(key), value)
end

#delete(key) ⇒ Object

Removes the specified key from the hash.



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# File 'lib/proper_properties/properties.rb', line 51

def delete(key)
  super(convert_key(key))
end

#fetch(key, *extras) ⇒ Object

Same as Hash#fetch where the key passed as argument can be either a string or a symbol:

counters = ProperProperties::Properties.new
counters[:foo] = 1

counters.fetch('foo')          # => 1
counters.fetch(:bar, 0)        # => 0
counters.fetch(:bar) {|key| 0} # => 0
counters.fetch(:zoo)           # => KeyError: key not found: "zoo"



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# File 'lib/proper_properties/properties.rb', line 36

def fetch(key, *extras)
  super(convert_key(key), *extras)
end

#key?(key) ⇒ Boolean

Checks the hash for a key matching the argument passed in:

hash = ProperProperties::Properties.new
hash['key'] = 'value'
hash.key?(:key)  # => true
hash.key?('key') # => true

Returns:

  • (Boolean) 


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# File 'lib/proper_properties/properties.rb', line 22

def key?(key)
  super(convert_key(key))
end

#values_at(*indices) ⇒ Object

Returns an array of the values at the specified indices:

hash = ProperProperties::Properties.new
hash[:a] = 'x'
hash[:b] = 'y'
hash.values_at('a', 'b') # => ["x", "y"]



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# File 'lib/proper_properties/properties.rb', line 46

def values_at(*indices)
  indices.collect {|key| self[convert_key(key)]}
end