π Doc ActiveSupport::Inflector module
object to class name
@person.class.name #=> "Person"
Person.name #=> "Person"
Class to table name
User.table_name #=> "users"
tableize
"Person".tableize # => "people"
"Invoice".tableize # => "invoices"
"InvoiceLine".tableize # => "invoice_lines"
classify
"people".classify # => "Person"
"invoices".classify # => "Invoice"
"invoice_lines".classify # => "InvoiceLine"
"highrise_production.companies".classify # => "Company"
constantize
"Fixnum".constantize # => Fixnum
pluralize
"table".pluralize # => "tables"
"ruby".pluralize # => "rubies"
"equipment".pluralize # => "equipment"
"dude".pluralize # => "dudes"
"dude".pluralize(0) # => "dudes"
"dude".pluralize(1) # => "dude"
"dude".pluralize(2) # => "dudes"
singularize
"tables".singularize # => "table"
"rubies".singularize # => "ruby"
"equipment".singularize # => "equipment"
camelize(camelcase)
"/" converts to "::".
"product".camelize # => "Product"
"admin_user".camelize # => "AdminUser"
"backoffice/session".camelize # => "Backoffice::Session"
"visual_effect".camelize(:lower) # => "visualEffect"
underscore
"::" converts to "/".
I sometimes use it with .gsub(/\//, '_')
.
"Product".underscore # => "product"
"AdminUser".underscore # => "admin_user"
"Backoffice::Session".underscore # => "backoffice/session"
"visualEffect".underscore # => "visual_effect"
titleize(titlecase)
"alice in wonderland".titleize # => "Alice In Wonderland"
"fermat's enigma".titleize # => "Fermat's Enigma"
dasherize
"name".dasherize # => "name"
"contact_data".dasherize # => "contact-data"
demodulize
"Product".demodulize # => "Product"
"Backoffice::UsersController".demodulize # => "UsersController"
"Admin::Hotel::ReservationUtils".demodulize # => "ReservationUtils"
"::Inflections".demodulize # => "Inflections"
"".demodulize # => ""
deconstantize
"Product".deconstantize # => ""
"Backoffice::UsersController".deconstantize # => "Backoffice"
"Admin::Hotel::ReservationUtils".deconstantize # => "Admin::Hotel"
parameterize
"John Smith".parameterize # => "john-smith"
"Kurt GΓΆdel".parameterize # => "kurt-godel"
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