Module: ActiveMethod::Util

Defined in:
lib/active_method/util.rb

Class Method Summary collapse

Class Method Details

.camel_case(str) ⇒ Object 



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# File 'lib/active_method/util.rb', line 30

def camel_case(str)
  str = str.to_s
  return str if str !~ /_/ && str =~ /[A-Z]+.*/
  str.split("_").map(&:capitalize).join
end

.constantize(klass, name) ⇒ Object

Raises:

  • (NameError) 


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# File 'lib/active_method/util.rb', line 5

def constantize(klass, name)
  constant = klass.const_get(name) rescue nil
  return constant unless constant.nil?

  namespaces_of(klass).each do |namespace|
    constant = namespace.const_get(name) rescue nil
    return constant unless constant.nil?
  end

  raise NameError.new("wrong constant name #{name}") if constant.nil?
end

.namespaces_of(klass) ⇒ Object 



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# File 'lib/active_method/util.rb', line 17

def namespaces_of(klass)
  namespaces = []

  names = klass.name.split("::")
  names.pop
  while !names.empty?
    namespaces << Object.const_get(names.join("::"))
    names.pop
  end

  namespaces
end

.snake_case(str) ⇒ Object 



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# File 'lib/active_method/util.rb', line 36

def snake_case(str)
  return str.downcase if str =~ /^[A-Z_]+$/
  str.gsub(/\B[A-Z]/, '_\&').squeeze("_") =~ /_*(.*)/
  $+.downcase
end