- Comparable
[R] | cache_key | |
[R] | collection | |
[R] | element | |
[R] | i18n_key | |
[R] | name | |
[R] | param_key | |
[R] | plural | |
[R] | route_key | |
[R] | singular | |
[R] | singular_route_key |
Returns a new ActiveModel::Name
instance. By default, the namespace
and name
option will take the namespace and name of the given class respectively.
module Foo
class Bar
end
end
ActiveModel::Name.new(Foo::Bar).to_s
# => "Foo::Bar"
# File activemodel/lib/active_model/naming.rb, line 164 def initialize(klass, namespace = nil, name = nil) @name = name || klass.name raise ArgumentError, "Class name cannot be blank. You need to supply a name argument when anonymous class given" if @name.blank? @unnamespaced = @name.sub(/^#{namespace.name}::/, "") if namespace @klass = klass @singular = _singularize(@name) @plural = ActiveSupport::Inflector.pluralize(@singular) @element = ActiveSupport::Inflector.underscore(ActiveSupport::Inflector.demodulize(@name)) @human = ActiveSupport::Inflector.humanize(@element) @collection = ActiveSupport::Inflector.tableize(@name) @param_key = (namespace ? _singularize(@unnamespaced) : @singular) @i18n_key = @name.underscore.to_sym @route_key = (namespace ? ActiveSupport::Inflector.pluralize(@param_key) : @plural.dup) @singular_route_key = ActiveSupport::Inflector.singularize(@route_key) @route_key << "_index" if @plural == @singular end
Equivalent to String#!~
. Match the class name against the given regexp. Returns true
if there is no match, otherwise false
.
class BlogPost
extend ActiveModel::Naming
end
BlogPost.model_name !~ /Post/ # => false
BlogPost.model_name !~ /\d/ # => true
Equivalent to String#<=>
.
class BlogPost
extend ActiveModel::Naming
end
BlogPost.model_name <=> 'BlogPost' # => 0
BlogPost.model_name <=> 'Blog' # => 1
BlogPost.model_name <=> 'BlogPosts' # => -1
Equivalent to String#==
. Returns true
if the class name and other
are equal, otherwise false
.
class BlogPost
extend ActiveModel::Naming
end
BlogPost.model_name == 'BlogPost' # => true
BlogPost.model_name == 'Blog Post' # => false
Equivalent to #==
.
class BlogPost
extend ActiveModel::Naming
end
BlogPost.model_name === 'BlogPost' # => true
BlogPost.model_name === 'Blog Post' # => false
Equivalent to String#=~
. Match the class name against the given regexp. Returns the position where the match starts or nil
if there is no match.
class BlogPost
extend ActiveModel::Naming
end
BlogPost.model_name =~ /Post/ # => 4
BlogPost.model_name =~ /\d/ # => nil
Equivalent to String#eql?
. Returns true
if the class name and other
have the same length and content, otherwise false
.
class BlogPost
extend ActiveModel::Naming
end
BlogPost.model_name.eql?('BlogPost') # => true
BlogPost.model_name.eql?('Blog Post') # => false
Transform the model name into a more human format, using I18n. By default, it will underscore then humanize the class name.
class BlogPost
extend ActiveModel::Naming
end
BlogPost.model_name.human # => "Blog post"
Specify options
with additional translating options.
# File activemodel/lib/active_model/naming.rb, line 194 def human(options = {}) return @human unless @klass.respond_to?(:lookup_ancestors) && @klass.respond_to?(:i18n_scope) defaults = @klass.lookup_ancestors.map do |klass| klass.model_name.i18n_key end defaults << options[:default] if options[:default] defaults << @human options = { scope: [@klass.i18n_scope, :models], count: 1, default: defaults }.merge!(options.except(:default)) I18n.translate(defaults.shift, **options) end
Equivalent to String#match?
. Match the class name against the given regexp. Returns true
if there is a match, otherwise false
.
class BlogPost
extend ActiveModel::Naming
end
BlogPost.model_name.match?(/Post/) # => true
BlogPost.model_name.match?(/\d/) # => false
Returns the class name.
class BlogPost
extend ActiveModel::Naming
end
BlogPost.model_name.to_s # => "BlogPost"