629e208e9d
We're choosing the default `with_first_argument` style because it's the one we use the most.
66 lines
1.9 KiB
Ruby
66 lines
1.9 KiB
Ruby
module Attachable
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extend ActiveSupport::Concern
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included do
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has_one_attached :attachment
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attr_accessor :cached_attachment
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validates :attachment,
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presence: true,
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file_content_type: {
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allow: ->(record) { record.accepted_content_types },
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if: -> { association_class && attachment.attached? },
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message: ->(record, *) do
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I18n.t("#{record.model_name.plural}.errors.messages.wrong_content_type",
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content_type: record.attachment_content_type,
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accepted_content_types: record.class.humanized_accepted_content_types)
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end
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},
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file_size: {
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less_than_or_equal_to: ->(record) { record.max_file_size.megabytes },
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if: -> { association_class && attachment.attached? },
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message: ->(record, *) do
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I18n.t("#{record.model_name.plural}.errors.messages.in_between",
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min: "0 Bytes",
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max: "#{record.max_file_size} MB")
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end
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}
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before_validation :set_attachment_from_cached_attachment, if: -> { cached_attachment.present? }
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end
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def association_class
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type = send("#{association_name}_type")
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type.constantize if type.present?
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end
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def set_cached_attachment_from_attachment
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self.cached_attachment = attachment.signed_id
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end
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def set_attachment_from_cached_attachment
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self.attachment = cached_attachment
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end
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def attachment_file_name
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attachment.filename.to_s if attachment.attached?
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end
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def attachment_content_type
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attachment.blob.content_type if attachment.attached?
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end
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def attachment_file_size
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if attachment.attached?
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attachment.blob.byte_size
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else
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0
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end
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end
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def file_path
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ActiveStorage::Blob.service.path_for(attachment.blob.key)
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end
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end
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