26 lines
681 B
Ruby
26 lines
681 B
Ruby
# frozen_string_literal: true
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class Attachment < ApplicationRecord
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belongs_to :attachable, polymorphic: true
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has_attached_file :file,
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styles: lambda { |a|
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if a.instance.image?
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{
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small: 'x200>',
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medium: 'x300>',
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large: 'x400>'
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}
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else
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{}
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end
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}
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validates_attachment_content_type :file, content_type: [
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%r{\Aimage/.*\Z},
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%r{\Avideo/.*\Z}
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]
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def image?
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file.instance.file_content_type =~ /image/
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end
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end
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