module Expressr::Utils

Public Class Methods

constantize(camel_cased_word) click to toggle source

From ActiveSupport

# File lib/expressr/utils.rb, line 4
def constantize(camel_cased_word)
  names = camel_cased_word.split('::')

  # Trigger a builtin NameError exception including the ill-formed constant in the message.
  Object.const_get(camel_cased_word) if names.empty?

  # Remove the first blank element in case of '::ClassName' notation.
  names.shift if names.size > 1 && names.first.empty?

  names.inject(Object) do |constant, name|
    if constant == Object
      constant.const_get(name)
    else
      candidate = constant.const_get(name)
      next candidate if constant.const_defined?(name, false)
      next candidate unless Object.const_defined?(name)

      # Go down the ancestors to check it it's owned
      # directly before we reach Object or the end of ancestors.
      constant = constant.ancestors.inject do |const, ancestor|
        break const    if ancestor == Object
        break ancestor if ancestor.const_defined?(name, false)
        const
      end

      # owner is in Object, so raise
      constant.const_get(name, false)
    end
  end
end
standardize_content_type(content_type) click to toggle source
# File lib/expressr/utils.rb, line 36
def standardize_content_type(content_type)
  canonicalized_types = {
    'text' => 'text/plain',
    'html' => 'text/html',
    'json' => 'application/json'
  }
  canonicalized_types[content_type] || content_type
end

Private Instance Methods

constantize(camel_cased_word) click to toggle source

From ActiveSupport

# File lib/expressr/utils.rb, line 4
def constantize(camel_cased_word)
  names = camel_cased_word.split('::')

  # Trigger a builtin NameError exception including the ill-formed constant in the message.
  Object.const_get(camel_cased_word) if names.empty?

  # Remove the first blank element in case of '::ClassName' notation.
  names.shift if names.size > 1 && names.first.empty?

  names.inject(Object) do |constant, name|
    if constant == Object
      constant.const_get(name)
    else
      candidate = constant.const_get(name)
      next candidate if constant.const_defined?(name, false)
      next candidate unless Object.const_defined?(name)

      # Go down the ancestors to check it it's owned
      # directly before we reach Object or the end of ancestors.
      constant = constant.ancestors.inject do |const, ancestor|
        break const    if ancestor == Object
        break ancestor if ancestor.const_defined?(name, false)
        const
      end

      # owner is in Object, so raise
      constant.const_get(name, false)
    end
  end
end
standardize_content_type(content_type) click to toggle source
# File lib/expressr/utils.rb, line 36
def standardize_content_type(content_type)
  canonicalized_types = {
    'text' => 'text/plain',
    'html' => 'text/html',
    'json' => 'application/json'
  }
  canonicalized_types[content_type] || content_type
end