chinwagsocial/app/models/media_attachment.rb

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class MediaAttachment < ApplicationRecord
belongs_to :account, inverse_of: :media_attachments
belongs_to :status, inverse_of: :media_attachments
has_attached_file :file, styles: { small: '510x680>' }
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validates_attachment_content_type :file, content_type: /\Aimage\/.*\z/
validates_attachment_size :file, less_than: 4.megabytes
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validates :account, presence: true
def local?
self.remote_url.blank?
end
def file_remote_url=(url)
self.file = URI.parse(url)
end
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end