600f5c35e9
Since we're going to remove Paperclip and Active Storage doesn't provide any validations, we have to either write our own validation rules or use a different gem. We're using the file_validators gem instead of the `active_storage_validations` gem because the latter doesn't support proc/lambda objects in size and content type definitions. We need to use them because in our case these values depend on settings stored in the database.
68 lines
1.7 KiB
Ruby
68 lines
1.7 KiB
Ruby
class SiteCustomization::Image < ApplicationRecord
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include HasAttachment
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VALID_IMAGES = {
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"logo_header" => [260, 80],
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"social_media_icon" => [470, 246],
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"social_media_icon_twitter" => [246, 246],
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"apple-touch-icon-200" => [200, 200],
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"budget_execution_no_image" => [800, 600],
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"map" => [420, 500],
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"logo_email" => [400, 80]
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}.freeze
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has_attachment :image
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validates :name, presence: true, uniqueness: true, inclusion: { in: VALID_IMAGES.keys }
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do_not_validate_attachment_file_type :image
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validates :image, file_content_type: { allow: ["image/png", "image/jpeg"] }
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validate :check_image
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def self.all_images
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VALID_IMAGES.keys.map do |image_name|
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find_by(name: image_name) || create!(name: image_name.to_s)
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end
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end
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def self.image_for(filename)
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image_name = filename.split(".").first
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find_by(name: image_name)&.persisted_image
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end
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def required_width
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VALID_IMAGES[name]&.first
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end
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def required_height
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VALID_IMAGES[name]&.second
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end
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def persisted_image
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storage_image if persisted_attachment?
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end
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def persisted_attachment?
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storage_image.attachment&.persisted?
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end
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private
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def check_image
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return unless image?
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storage_image.analyze unless storage_image.analyzed?
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width = storage_image.metadata[:width]
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height = storage_image.metadata[:height]
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if name == "logo_header"
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errors.add(:image, :image_width, required_width: required_width) unless width <= required_width
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else
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errors.add(:image, :image_width, required_width: required_width) unless width == required_width
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end
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errors.add(:image, :image_height, required_height: required_height) unless height == required_height
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end
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end
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