Class: Hash

Inherits:
Object
  • Object
show all
Defined in:
lib/facebooker/rails/helpers.rb

Constant Summary collapse

FB_ALWAYS_VALID_OPTION_KEYS =

We can allow css attributes.

[:class, :style]

Instance Method Summary collapse

Instance Method Details

#assert_valid_keys(*valid_keys) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/facebooker/rails/helpers.rb', line 810

def assert_valid_keys(*valid_keys)
  unknown_keys = keys - [valid_keys + FB_ALWAYS_VALID_OPTION_KEYS].flatten
  raise(ArgumentError, "Unknown key(s): #{unknown_keys.join(", ")}") unless unknown_keys.empty?
end

#swapkey!(newkey, oldkey) ⇒ Object

This method is lifted from Ruby Facets core



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# File 'lib/facebooker/rails/helpers.rb', line 803

def swapkey!( newkey, oldkey )
  self[newkey] = self.delete(oldkey) if self.has_key?(oldkey)
  self
end

#transform_key!(old_key, new_key) ⇒ Object 



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# File 'lib/facebooker/rails/helpers.rb', line 798

def transform_key!(old_key, new_key)
  swapkey!(new_key, old_key)
end

#transform_keys!(transformation_hash) ⇒ Object 



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# File 'lib/facebooker/rails/helpers.rb', line 793

def transform_keys!(transformation_hash)
  transformation_hash.each_pair{|key, value| transform_key!(key, value)}
end