Class: CarrierWave::Uploader::Versions::Builder

Inherits:
Object
  • Object
show all
Defined in:
lib/carrierwave/uploader/versions.rb

Instance Method Summary collapse

Constructor Details

#initialize(name) ⇒ Builder

Returns a new instance of Builder.



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# File 'lib/carrierwave/uploader/versions.rb', line 7

def initialize(name)
  @name = name
  @options = {}
  @blocks = []
  @klass = nil
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *args) ⇒ Object 



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# File 'lib/carrierwave/uploader/versions.rb', line 73

def method_missing(name, *args)
  super
rescue NoMethodError => e
  raise e.exception "    \#{e.message}\n    If you're trying to configure a version, do it inside a block like `version(:thumb) { self.\#{name} \#{args.map(&:inspect).join(', ')} }`.\n  ERROR\nend\n"

Instance Method Details

#build(superclass) ⇒ Object 



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# File 'lib/carrierwave/uploader/versions.rb', line 20

def build(superclass)
  return @klass if @klass
  @klass = Class.new(superclass)
  superclass.const_set("VersionUploader#{@name.to_s.camelize}", @klass)

  @klass.version_names += [@name]
  @klass.versions = {}
  @klass.processors = []
  @klass.version_options = @options
  @klass.class_eval "    # Define the enable_processing method for versions so they get the\n    # value from the parent class unless explicitly overwritten\n    def self.enable_processing(value=nil)\n      self.enable_processing = value if value\n      if defined?(@enable_processing) && !@enable_processing.nil?\n        @enable_processing\n      else\n        superclass.enable_processing\n      end\n    end\n\n    # Regardless of what is set in the parent uploader, do not enforce the\n    # move_to_cache config option on versions because it moves the original\n    # file to the version's target file.\n    #\n    # If you want to enforce this setting on versions, override this method\n    # in each version:\n    #\n    # version :thumb do\n    #   def move_to_cache\n    #     true\n    #   end\n    # end\n    #\n    def move_to_cache\n      false\n    end\n\n    # Need to rely on the parent version's identifier, as versions don't have its own one.\n    def identifier\n      parent_version.identifier\n    end\n  RUBY\n  @blocks.each { |block| @klass.class_eval(&block) }\n  @klass\nend\n", __FILE__, __LINE__ + 1

#configure(options, &block) ⇒ Object 



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# File 'lib/carrierwave/uploader/versions.rb', line 14

def configure(options, &block)
  @options.merge!(options)
  @blocks << block if block
  @klass = nil
end

#deep_dup ⇒ Object 



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# File 'lib/carrierwave/uploader/versions.rb', line 67

def deep_dup
  other = dup
  other.instance_variable_set(:@blocks, @blocks.dup)
  other
end

#respond_to_missing? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/carrierwave/uploader/versions.rb', line 82

def respond_to_missing?(*)
  super
end