Jeremy Daer
21f3f72647
Process variants synchronously on attachment to close the window between image upload and variant availability, guaranteeing that we won't have lazy variant processing attempts in GET requests. Tradeoff is that we do variant processing in upload requests, which is actually desirable. We're working with images that should take milliseconds to resize given that we'll already have the file on hand. References https://github.com/rails/rails/pull/51951
25 lines
657 B
Ruby
25 lines
657 B
Ruby
module User::Avatar
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extend ActiveSupport::Concern
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ALLOWED_AVATAR_CONTENT_TYPES = %w[ image/jpeg image/png image/gif image/webp ].freeze
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included do
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has_one_attached :avatar do |attachable|
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attachable.variant :thumb, resize_to_fill: [ 256, 256 ], process: :immediately
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end
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validate :avatar_content_type_allowed
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end
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def avatar_thumbnail
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avatar.variable? ? avatar.variant(:thumb) : avatar
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end
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private
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def avatar_content_type_allowed
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if avatar.attached? && !ALLOWED_AVATAR_CONTENT_TYPES.include?(avatar.content_type)
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errors.add(:avatar, "must be a JPEG, PNG, GIF, or WebP image")
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end
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end
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end
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