105 lines
3.4 KiB
Ruby
105 lines
3.4 KiB
Ruby
require 'rails/generators/base'
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require 'rails/generators/generated_attribute'
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module Rails
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module Generators
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class NamedBase < Base
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argument :name, :type => :string
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attr_reader :class_name, :singular_name, :plural_name, :table_name,
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:class_path, :file_path, :class_nesting_depth
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alias :file_name :singular_name
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def initialize(args, *options) #:nodoc:
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# Unfreeze name in case it's given as a frozen string
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args[0] = args[0].dup if args[0].is_a?(String) && args[0].frozen?
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super
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assign_names!(self.name)
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parse_attributes! if respond_to?(:attributes)
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end
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protected
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def assign_names!(given_name) #:nodoc:
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base_name, @class_path, @file_path, class_nesting, @class_nesting_depth = extract_modules(given_name)
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class_name_without_nesting, @singular_name, @plural_name = inflect_names(base_name)
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@table_name = if pluralize_table_names?
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plural_name
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else
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singular_name
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end
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if class_nesting.empty?
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@class_name = class_name_without_nesting
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else
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@table_name = class_nesting.underscore << "_" << @table_name
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@class_name = "#{class_nesting}::#{class_name_without_nesting}"
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end
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@table_name.gsub!('/', '_')
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end
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# Convert attributes hash into an array with GeneratedAttribute objects.
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#
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def parse_attributes! #:nodoc:
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self.attributes = (attributes || []).map do |key_value|
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name, type = key_value.split(':')
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Rails::Generators::GeneratedAttribute.new(name, type)
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end
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end
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# Extract modules from filesystem-style or ruby-style path. Both
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# good/fun/stuff and Good::Fun::Stuff produce the same results.
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#
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def extract_modules(name) #:nodoc:
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modules = name.include?('/') ? name.split('/') : name.split('::')
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name = modules.pop
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path = modules.map { |m| m.underscore }
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file_path = (path + [name.underscore]).join('/')
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nesting = modules.map { |m| m.camelize }.join('::')
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[name, path, file_path, nesting, modules.size]
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end
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# Receives name and return camelized, underscored and pluralized names.
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#
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def inflect_names(name) #:nodoc:
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camel = name.camelize
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under = camel.underscore
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plural = under.pluralize
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[camel, under, plural]
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end
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def pluralize_table_names?
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!defined?(ActiveRecord::Base) || ActiveRecord::Base.pluralize_table_names
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end
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# Add a class collisions name to be checked on class initialization. You
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# can supply a hash with a :prefix or :suffix to be tested.
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#
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# ==== Examples
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#
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# check_class_collision :suffix => "Observer"
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#
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# If the generator is invoked with class name Admin, it will check for
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# the presence of "AdminObserver".
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#
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def self.check_class_collision(options={})
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define_method :check_class_collision do
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name = if self.respond_to?(:controller_class_name) # for ScaffoldBase
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controller_class_name
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else
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class_name
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end
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class_collisions "#{options[:prefix]}#{name}#{options[:suffix]}"
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end
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end
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end
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end
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end
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