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class ActiveStorage::Attached::Many

Active Storage Attached Many

Decorated proxy object representing of multiple attachments to a model.

Inherits From

Public instance methods

attach(*attachables)

Attaches one or more attachables to the record.

If the record is persisted and unchanged, the attachments are saved to the database immediately. Otherwise, they’ll be saved to the DB when the record is next saved.

document.images.attach(params[:images]) # Array of ActionDispatch::Http::UploadedFile objects
document.images.attach(params[:signed_blob_id]) # Signed reference to blob from direct upload
document.images.attach(io: File.open("/path/to/racecar.jpg"), filename: "racecar.jpg", content_type: "image/jpeg")
document.images.attach([ first_blob, second_blob ])
Source code GitHub 
# File activestorage/lib/active_storage/attached/many.rb, line 51
def attach(*attachables)
  record.public_send("#{name}=", blobs + attachables.flatten)
  if record.persisted? && !record.changed?
    return if !record.save
  end
  record.public_send("#{name}")
end

attached?()

Returns true if any attachments have been made.

class Gallery < ApplicationRecord
  has_many_attached :photos
end

Gallery.new.photos.attached? # => false
Source code GitHub 
# File activestorage/lib/active_storage/attached/many.rb, line 66
def attached?
  attachments.any?
end

attachments()

Returns all the associated attachment records.

All methods called on this proxy object that aren’t listed here will automatically be delegated to attachments.

Source code GitHub 
# File activestorage/lib/active_storage/attached/many.rb, line 32
def attachments
  change.present? ? change.attachments : record.public_send("#{name}_attachments")
end

blobs()

Returns all attached blobs.

Source code GitHub 
# File activestorage/lib/active_storage/attached/many.rb, line 37
def blobs
  change.present? ? change.blobs : record.public_send("#{name}_blobs")
end

detach

Deletes associated attachments without purging them, leaving their respective blobs in place.

Source code GitHub 
# File activestorage/lib/active_storage/attached/many.rb, line 25
delegate :detach, to: :detach_many

purge

Directly purges each associated attachment (i.e. destroys the blobs and attachments and deletes the files on the service).

Source code GitHub 
# File activestorage/lib/active_storage/attached/many.rb, line 13
delegate :purge, to: :purge_many

purge_later

Purges each associated attachment through the queuing system.

Source code GitHub 
# File activestorage/lib/active_storage/attached/many.rb, line 19
delegate :purge_later, to: :purge_many

Definition files