Class: Hash

Inherits:
Object show all
Defined in:
lib/jactive_support/core_ext/to_java_map.rb,
lib/jactive_support/core_ext/hash/with_keys_values.rb,
lib/jactive_support/core_ext/hash/assert_valid_params.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.with_keys_values(keys, values) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/jactive_support/core_ext/hash/with_keys_values.rb', line 2

def Hash.with_keys_values(keys, values)
  raise ArgumentError, "Unmatching sizes #{keys.size} != #{values.size}" unless keys.size == values.size
  #Hash[keys.zip(values).flatten]
  ret = Hash.new
  keys.each_with_index{|key, idx| ret[key] = values[idx]}
  ret
end

Instance Method Details

#assert_valid_params(*valid_keys) ⇒ Object

Validate all keys in a hash match *valid keys, raising JactiveSupport::InvalidParameter on a mismatch. Note that keys are NOT treated indifferently, meaning if you use strings for keys but assert symbols as keys, this will fail.

Examples

{ :name => "Rob", :years => "28" }.assert_valid_params(:name, :age) # => raises "InvalidParameter: Unknown key(s): years"
{ :name => "Rob", :age => "28" }.assert_valid_params("name", "age") # => raises "InvalidParameter: Unknown key(s): name, age"
{ :name => "Rob", :age => "28" }.assert_valid_params(:name, :age) # => passes, raises nothing

Raises:



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# File 'lib/jactive_support/core_ext/hash/assert_valid_params.rb', line 15

def assert_valid_params(*valid_keys)
  unknown_keys = keys.map{|key| key.to_sym} - [valid_keys].flatten
  raise(::JactiveSupport::InvalidParameter, "Unknown key(s): #{unknown_keys.join(", ")}") unless unknown_keys.empty?
end

#to_java_map ⇒ Object 



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# File 'lib/jactive_support/core_ext/to_java_map.rb', line 2

def to_java_map
  self
end