Module: Hammock::HashPatches::InstanceMethods

Defined in:
lib/hammock/monkey_patches/hash.rb

Instance Method Summary collapse

Instance Method Details

#discard(*keys) ⇒ Object 



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# File 'lib/hammock/monkey_patches/hash.rb', line 20

def discard *keys
  dup.discard! *keys
end

#discard!(*keys) ⇒ Object 



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# File 'lib/hammock/monkey_patches/hash.rb', line 15

def discard! *keys
  keys.each {|k| delete k }
  self
end

#dragnet(*keys) ⇒ Object

TODO remove in favour of #slice (in ActiveSupport).



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# File 'lib/hammock/monkey_patches/hash.rb', line 32

def dragnet *keys
  dup.dragnet! *keys
end

#dragnet!(*keys) ⇒ Object 



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# File 'lib/hammock/monkey_patches/hash.rb', line 36

def dragnet! *keys
  keys.inject({}) {|acc,key|
    acc[key] = self.delete(key) if self.has_key?(key)
    acc
  }
end

#reject_r(&block) ⇒ Object 



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# File 'lib/hammock/monkey_patches/hash.rb', line 55

def reject_r &block
  dup.reject_r! &block
end

#reject_r!(&block) ⇒ Object 



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# File 'lib/hammock/monkey_patches/hash.rb', line 59

def reject_r! &block
  each_pair {|k,v|
    if yield k, v
      self.delete k
    elsif v.is_a? Hash
      self[k] = v.reject_r &block
    end
  }
end

#selekt(&block) ⇒ Object 



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# File 'lib/hammock/monkey_patches/hash.rb', line 24

def selekt &block
  inject({}) {|hsh,(k,v)|
    hsh[k] = v if yield(k,v)
    hsh
  }
end

#to_flattened_json ⇒ Object 



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# File 'lib/hammock/monkey_patches/hash.rb', line 51

def to_flattened_json
  to_param_hash.to_json
end

#to_param_hash(prefix = '') ⇒ Object 



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# File 'lib/hammock/monkey_patches/hash.rb', line 43

def to_param_hash prefix = ''
  hsh = self.dup
  # TODO these two blocks can probably be combined
  hsh.keys.each {|k| hsh.merge!(hsh.delete(k).to_param_hash(k)) if hsh[k].is_a?(Hash) }
  hsh.keys.each {|k| hsh["#{prefix}[#{k}]"] = hsh.delete(k) } unless prefix.blank?
  hsh
end