--- /dev/null
+require 'active_support/inflector'
+
+module ActiveSupport #:nodoc:
+ module CoreExtensions #:nodoc:
+ module String #:nodoc:
+ # String inflections define new methods on the String class to transform names for different purposes.
+ # For instance, you can figure out the name of a database from the name of a class.
+ #
+ # "ScaleScore".tableize # => "scale_scores"
+ module Inflections
+ # Returns the plural form of the word in the string.
+ #
+ # "post".pluralize # => "posts"
+ # "octopus".pluralize # => "octopi"
+ # "sheep".pluralize # => "sheep"
+ # "words".pluralize # => "words"
+ # "the blue mailman".pluralize # => "the blue mailmen"
+ # "CamelOctopus".pluralize # => "CamelOctopi"
+ def pluralize
+ Inflector.pluralize(self)
+ end
+
+ # The reverse of +pluralize+, returns the singular form of a word in a string.
+ #
+ # "posts".singularize # => "post"
+ # "octopi".singularize # => "octopus"
+ # "sheep".singularize # => "sheep"
+ # "word".singularize # => "word"
+ # "the blue mailmen".singularize # => "the blue mailman"
+ # "CamelOctopi".singularize # => "CamelOctopus"
+ def singularize
+ Inflector.singularize(self)
+ end
+
+ # By default, +camelize+ converts strings to UpperCamelCase. If the argument to camelize
+ # is set to <tt>:lower</tt> then camelize produces lowerCamelCase.
+ #
+ # +camelize+ will also convert '/' to '::' which is useful for converting paths to namespaces.
+ #
+ # "active_record".camelize # => "ActiveRecord"
+ # "active_record".camelize(:lower) # => "activeRecord"
+ # "active_record/errors".camelize # => "ActiveRecord::Errors"
+ # "active_record/errors".camelize(:lower) # => "activeRecord::Errors"
+ def camelize(first_letter = :upper)
+ case first_letter
+ when :upper then Inflector.camelize(self, true)
+ when :lower then Inflector.camelize(self, false)
+ end
+ end
+ alias_method :camelcase, :camelize
+
+ # Capitalizes all the words and replaces some characters in the string to create
+ # a nicer looking title. +titleize+ is meant for creating pretty output. It is not
+ # used in the Rails internals.
+ #
+ # +titleize+ is also aliased as +titlecase+.
+ #
+ # "man from the boondocks".titleize # => "Man From The Boondocks"
+ # "x-men: the last stand".titleize # => "X Men: The Last Stand"
+ def titleize
+ Inflector.titleize(self)
+ end
+ alias_method :titlecase, :titleize
+
+ # The reverse of +camelize+. Makes an underscored, lowercase form from the expression in the string.
+ #
+ # +underscore+ will also change '::' to '/' to convert namespaces to paths.
+ #
+ # "ActiveRecord".underscore # => "active_record"
+ # "ActiveRecord::Errors".underscore # => active_record/errors
+ def underscore
+ Inflector.underscore(self)
+ end
+
+ # Replaces underscores with dashes in the string.
+ #
+ # "puni_puni" # => "puni-puni"
+ def dasherize
+ Inflector.dasherize(self)
+ end
+
+ # Removes the module part from the constant expression in the string.
+ #
+ # "ActiveRecord::CoreExtensions::String::Inflections".demodulize # => "Inflections"
+ # "Inflections".demodulize # => "Inflections"
+ def demodulize
+ Inflector.demodulize(self)
+ end
+
+ # Replaces special characters in a string so that it may be used as part of a 'pretty' URL.
+ #
+ # ==== Examples
+ #
+ # class Person
+ # def to_param
+ # "#{id}-#{name.parameterize}"
+ # end
+ # end
+ #
+ # @person = Person.find(1)
+ # # => #<Person id: 1, name: "Donald E. Knuth">
+ #
+ # <%= link_to(@person.name, person_path %>
+ # # => <a href="/person/1-donald-e-knuth">Donald E. Knuth</a>
+ def parameterize
+ Inflector.parameterize(self)
+ end
+
+ # Creates the name of a table like Rails does for models to table names. This method
+ # uses the +pluralize+ method on the last word in the string.
+ #
+ # "RawScaledScorer".tableize # => "raw_scaled_scorers"
+ # "egg_and_ham".tableize # => "egg_and_hams"
+ # "fancyCategory".tableize # => "fancy_categories"
+ def tableize
+ Inflector.tableize(self)
+ end
+
+ # Create a class name from a plural table name like Rails does for table names to models.
+ # Note that this returns a string and not a class. (To convert to an actual class
+ # follow +classify+ with +constantize+.)
+ #
+ # "egg_and_hams".classify # => "EggAndHam"
+ # "posts".classify # => "Post"
+ #
+ # Singular names are not handled correctly.
+ #
+ # "business".classify # => "Busines"
+ def classify
+ Inflector.classify(self)
+ end
+
+ # Capitalizes the first word, turns underscores into spaces, and strips '_id'.
+ # Like +titleize+, this is meant for creating pretty output.
+ #
+ # "employee_salary" # => "Employee salary"
+ # "author_id" # => "Author"
+ def humanize
+ Inflector.humanize(self)
+ end
+
+ # Creates a foreign key name from a class name.
+ # +separate_class_name_and_id_with_underscore+ sets whether
+ # the method should put '_' between the name and 'id'.
+ #
+ # Examples
+ # "Message".foreign_key # => "message_id"
+ # "Message".foreign_key(false) # => "messageid"
+ # "Admin::Post".foreign_key # => "post_id"
+ def foreign_key(separate_class_name_and_id_with_underscore = true)
+ Inflector.foreign_key(self, separate_class_name_and_id_with_underscore)
+ end
+
+ # +constantize+ tries to find a declared constant with the name specified
+ # in the string. It raises a NameError when the name is not in CamelCase
+ # or is not initialized.
+ #
+ # Examples
+ # "Module".constantize # => Module
+ # "Class".constantize # => Class
+ def constantize
+ Inflector.constantize(self)
+ end
+ end
+ end
+ end
+end
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