Module: CarrierWave::Uploader::Configuration::ClassMethods

Defined in:
lib/carrierwave/uploader/configuration.rb

Instance Method Summary collapse

Instance Method Details

#add_config(name) ⇒ Object 



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# File 'lib/carrierwave/uploader/configuration.rb', line 94

def add_config(name)
  class_eval <<-RUBY, __FILE__, __LINE__ + 1
    def self.#{name}(value=nil)
      @#{name} = value if value
      return @#{name} if self.object_id == #{self.object_id} || defined?(@#{name})
      name = superclass.#{name}
      return nil if name.nil? && !instance_variable_defined?("@#{name}")
      @#{name} = name && !name.is_a?(Module) && !name.is_a?(Symbol) && !name.is_a?(Numeric) && !name.is_a?(TrueClass) && !name.is_a?(FalseClass) ? name.dup : name
    end

    def self.#{name}=(value)
      @#{name} = value
    end

    def #{name}
      self.class.#{name}
    end
  RUBY
end

#configure {|_self| ... } ⇒ Object

Yields:

  • (_self)

Yield Parameters:



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# File 'lib/carrierwave/uploader/configuration.rb', line 114

def configure
  yield self
end

#storage(storage = nil) ⇒ Object Also known as: storage=

Sets the storage engine to be used when storing files with this uploader. Can be any class that implements a #store!(CarrierWave::SanitizedFile) and a #retrieve! method. See lib/carrierwave/storage/file.rb for an example. Storage engines should be added to CarrierWave::Uploader::Base.storage_engines so they can be referred to by a symbol, which should be more convenient

If no argument is given, it will simply return the currently used storage engine.

Parameters

[storage (Symbol, Class)] The storage engine to use for this uploader

Returns

[Class] the storage engine to be used with this uploader

Examples

storage :file
storage CarrierWave::Storage::File
storage MyCustomStorageEngine


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# File 'lib/carrierwave/uploader/configuration.rb', line 80

def storage(storage = nil)
  if storage.is_a?(Symbol)
    @storage = eval(storage_engines[storage])
  elsif storage
    @storage = storage
  elsif @storage.nil?
    # Get the storage from the superclass if there is one
    @storage = superclass.storage rescue nil
  end
  return @storage
end