Class Inflector::Inflections
In: vendor/rails/activesupport/lib/active_support/inflector.rb
Parent: Object

A singleton instance of this class is yielded by Inflector.inflections, which can then be used to specify additional inflection rules. Examples:

  Inflector.inflections do |inflect|
    inflect.plural /^(ox)$/i, '\1\2en'
    inflect.singular /^(ox)en/i, '\1'

    inflect.irregular 'octopus', 'octopi'

    inflect.uncountable "equipment"
  end

New rules are added at the top. So in the example above, the irregular rule for octopus will now be the first of the pluralization and singularization rules that is runs. This guarantees that your rules run before any of the rules that may already have been loaded.

Methods

clear   irregular   new   plural   singular   uncountable  

Included Modules

Singleton

Attributes

plurals  [R] 
singulars  [R] 
uncountables  [R] 

Public Class methods

[Source]

    # File vendor/rails/activesupport/lib/active_support/inflector.rb, line 32
32:     def initialize
33:       @plurals, @singulars, @uncountables = [], [], []
34:     end

Public Instance methods

Clears the loaded inflections within a given scope (default is :all). Give the scope as a symbol of the inflection type, the options are: :plurals, :singulars, :uncountables.

Examples:

  clear :all
  clear :plurals

[Source]

    # File vendor/rails/activesupport/lib/active_support/inflector.rb, line 83
83:     def clear(scope = :all)
84:       case scope
85:         when :all
86:           @plurals, @singulars, @uncountables = [], [], []
87:         else
88:           instance_variable_set "@#{scope}", []
89:       end
90:     end

Specifies a new irregular that applies to both pluralization and singularization at the same time. This can only be used for strings, not regular expressions. You simply pass the irregular in singular and plural form.

Examples:

  irregular 'octopus', 'octopi'
  irregular 'person', 'people'

[Source]

    # File vendor/rails/activesupport/lib/active_support/inflector.rb, line 54
54:     def irregular(singular, plural)
55:       if singular[0,1].upcase == plural[0,1].upcase
56:         plural(Regexp.new("(#{singular[0,1]})#{singular[1..-1]}$", "i"), '\1' + plural[1..-1])
57:         singular(Regexp.new("(#{plural[0,1]})#{plural[1..-1]}$", "i"), '\1' + singular[1..-1])
58:       else
59:         plural(Regexp.new("#{singular[0,1].upcase}(?i)#{singular[1..-1]}$"), plural[0,1].upcase + plural[1..-1])
60:         plural(Regexp.new("#{singular[0,1].downcase}(?i)#{singular[1..-1]}$"), plural[0,1].downcase + plural[1..-1])
61:         singular(Regexp.new("#{plural[0,1].upcase}(?i)#{plural[1..-1]}$"), singular[0,1].upcase + singular[1..-1])
62:         singular(Regexp.new("#{plural[0,1].downcase}(?i)#{plural[1..-1]}$"), singular[0,1].downcase + singular[1..-1])       
63:       end
64:     end

Specifies a new pluralization rule and its replacement. The rule can either be a string or a regular expression. The replacement should always be a string that may include references to the matched data from the rule.

[Source]

    # File vendor/rails/activesupport/lib/active_support/inflector.rb, line 38
38:     def plural(rule, replacement)
39:       @plurals.insert(0, [rule, replacement])
40:     end

Specifies a new singularization rule and its replacement. The rule can either be a string or a regular expression. The replacement should always be a string that may include references to the matched data from the rule.

[Source]

    # File vendor/rails/activesupport/lib/active_support/inflector.rb, line 44
44:     def singular(rule, replacement)
45:       @singulars.insert(0, [rule, replacement])
46:     end

Add uncountable words that shouldn‘t be attempted inflected.

Examples:

  uncountable "money"
  uncountable "money", "information"
  uncountable %w( money information rice )

[Source]

    # File vendor/rails/activesupport/lib/active_support/inflector.rb, line 72
72:     def uncountable(*words)
73:       (@uncountables << words).flatten!
74:     end

[Validate]