Class: Mutils::Lib::Helper

Inherits:
Object
  • Object
show all
Includes:
Singleton
Defined in:
lib/mutils/lib/helper.rb

Overview

Helper: caching expensive repetitive operations

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Helper

Returns a new instance of Helper.



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# File 'lib/mutils/lib/helper.rb', line 11

def initialize
  self.inflector_object = Dry::Inflector.new
  self.pluralize_cache = {}
  self.underscore_cache = {}
  self.constantize_cache = {}
end

Instance Method Details

#collection?(object) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mutils/lib/helper.rb', line 33

def collection?(object)
  object.respond_to?(:size) && !object.respond_to?(:each_pair)
end

#constantize(string) ⇒ Object 



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# File 'lib/mutils/lib/helper.rb', line 28

def constantize(string)
  constantize_cache[string] = Object.const_get string unless constantize_cache[string]
  constantize_cache[string]
end

#pluralize(string) ⇒ Object 



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# File 'lib/mutils/lib/helper.rb', line 23

def pluralize(string)
  pluralize_cache[string] = inflector_object.pluralize string unless pluralize_cache[string]
  pluralize_cache[string]
end

#underscore(string) ⇒ Object 



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# File 'lib/mutils/lib/helper.rb', line 18

def underscore(string)
  underscore_cache[string] = inflector_object.underscore string unless underscore_cache[string]
  underscore_cache[string]
end