Class: CarrierWave::Mount::Mounter

Inherits:
Object
  • Object
show all
Extended by:
ActiveSupport::Memoizable
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 289

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

Instance Attribute Details

#column ⇒ Object (readonly)

Returns the value of attribute column.



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# File 'lib/carrierwave/mount.rb', line 286

def column
  @column
end

#integrity_error ⇒ Object (readonly)

Returns the value of attribute integrity_error.



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# File 'lib/carrierwave/mount.rb', line 286

def integrity_error
  @integrity_error
end

#processing_error ⇒ Object (readonly)

Returns the value of attribute processing_error.



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# File 'lib/carrierwave/mount.rb', line 286

def processing_error
  @processing_error
end

#record ⇒ Object (readonly)

Returns the value of attribute record.



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# File 'lib/carrierwave/mount.rb', line 286

def record
  @record
end

#remote_url ⇒ Object

Returns the value of attribute remote_url.



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# File 'lib/carrierwave/mount.rb', line 286

def remote_url
  @remote_url
end

#remove ⇒ Object

Returns the value of attribute remove.



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# File 'lib/carrierwave/mount.rb', line 287

def remove
  @remove
end

Instance Method Details

#blank? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/carrierwave/mount.rb', line 356

def blank?
  uploader.blank?
end

#cache(new_file) ⇒ Object 



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# File 'lib/carrierwave/mount.rb', line 316

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 328

def cache_name
  uploader.cache_name
end

#cache_name=(cache_name) ⇒ Object 



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# File 'lib/carrierwave/mount.rb', line 332

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 303

def identifier
  record.read_uploader(serialization_column)
end

#remove! ⇒ Object 



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# File 'lib/carrierwave/mount.rb', line 364

def remove!
  uploader.remove!
end

#remove? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/carrierwave/mount.rb', line 360

def remove?
  !remove.blank? and remove !~ /\A0|false$\z/
end

#serialization_column ⇒ Object 



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# File 'lib/carrierwave/mount.rb', line 368

def serialization_column
  option(:mount_on) || column
end

#store! ⇒ Object 



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# File 'lib/carrierwave/mount.rb', line 342

def store!
  unless uploader.blank?
    if remove?
      uploader.remove!
    else
      uploader.store!
    end
  end
end

#uploader ⇒ Object 



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

def uploader
  @uploader ||= record.class.uploaders[column].new(record, column)

  if @uploader.blank? and not identifier.blank?
    @uploader.retrieve_from_store!(identifier)
  end
  return @uploader
end

#url(*args) ⇒ Object 



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# File 'lib/carrierwave/mount.rb', line 352

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

#write_identifier ⇒ Object 



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# File 'lib/carrierwave/mount.rb', line 295

def write_identifier
  if remove?
    record.write_uploader(serialization_column, '')
  elsif not uploader.identifier.blank?
    record.write_uploader(serialization_column, uploader.identifier)
  end
end