Class: CarrierWave::Mount::Mounter

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

Overview

this is an internal class, used by CarrierWave::Mount so that we don’t pollute the model with a lot of methods.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(record, column, options = {}) ⇒ Mounter

Returns a new instance of Mounter.



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# File 'lib/carrierwave/mount.rb', line 301

def initialize(record, column, options={})
  @record = record
  @column = column
  @options = record.class.uploader_options[column]
end

Instance Attribute Details

#column ⇒ Object (readonly)

:nodoc:



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# File 'lib/carrierwave/mount.rb', line 298

def column
  @column
end

#download_error ⇒ Object (readonly)

:nodoc:



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# File 'lib/carrierwave/mount.rb', line 298

def download_error
  @download_error
end

#integrity_error ⇒ Object (readonly)

:nodoc:



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# File 'lib/carrierwave/mount.rb', line 298

def integrity_error
  @integrity_error
end

#processing_error ⇒ Object (readonly)

:nodoc:



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# File 'lib/carrierwave/mount.rb', line 298

def processing_error
  @processing_error
end

#record ⇒ Object (readonly)

:nodoc:



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# File 'lib/carrierwave/mount.rb', line 298

def record
  @record
end

#remote_url ⇒ Object

:nodoc:



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# File 'lib/carrierwave/mount.rb', line 298

def remote_url
  @remote_url
end

#remove ⇒ Object

Returns the value of attribute remove.



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# File 'lib/carrierwave/mount.rb', line 299

def remove
  @remove
end

#uploader_options ⇒ Object

Returns the value of attribute uploader_options.



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# File 'lib/carrierwave/mount.rb', line 399

def uploader_options
  @uploader_options
end

Instance Method Details

#blank? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/carrierwave/mount.rb', line 383

def blank?
  uploader.blank?
end

#cache(new_file) ⇒ Object 



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# File 'lib/carrierwave/mount.rb', line 328

def cache(new_file)
  uploader.cache!(new_file)
  @integrity_error = nil
  @processing_error = nil
rescue CarrierWave::IntegrityError => e
  @integrity_error = e
  raise e unless option(:ignore_integrity_errors)
rescue CarrierWave::ProcessingError => e
  @processing_error = e
  raise e unless option(:ignore_processing_errors)
end

#cache_name ⇒ Object 



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# File 'lib/carrierwave/mount.rb', line 340

def cache_name
  uploader.cache_name
end

#cache_name=(cache_name) ⇒ Object 



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# File 'lib/carrierwave/mount.rb', line 344

def cache_name=(cache_name)
  uploader.retrieve_from_cache!(cache_name) unless uploader.cached?
rescue CarrierWave::InvalidParameter
end

#identifier ⇒ Object 



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# File 'lib/carrierwave/mount.rb', line 317

def identifier
  record.read_uploader(serialization_column)
end

#remove! ⇒ Object 



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# File 'lib/carrierwave/mount.rb', line 391

def remove!
  uploader.remove!
end

#remove? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/carrierwave/mount.rb', line 387

def remove?
  remove.present? && remove !~ /\A0|false$\z/
end

#serialization_column ⇒ Object 



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# File 'lib/carrierwave/mount.rb', line 395

def serialization_column
  option(:mount_on) || column
end

#store! ⇒ Object 



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# File 'lib/carrierwave/mount.rb', line 369

def store!
  return if uploader.blank?

  if remove?
    uploader.remove!
  else
    uploader.store!
  end
end

#uploader ⇒ Object 



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# File 'lib/carrierwave/mount.rb', line 321

def uploader
  @uploader ||= record.class.uploaders[column].new(record, column)
  @uploader.retrieve_from_store!(identifier) if @uploader.blank? && identifier.present?

  @uploader
end

#url(*args) ⇒ Object 



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# File 'lib/carrierwave/mount.rb', line 379

def url(*args)
  uploader.url(*args)
end

#write_identifier ⇒ Object 



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# File 'lib/carrierwave/mount.rb', line 307

def write_identifier
  return if record.frozen?

  if remove?
    record.write_uploader(serialization_column, nil)
  elsif uploader.identifier.present?
    record.write_uploader(serialization_column, uploader.identifier)
  end
end