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58 lines
1.6 KiB
Ruby
58 lines
1.6 KiB
Ruby
class ImageUpload < ApplicationRecord
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belongs_to :user, optional: true
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belongs_to :content, polymorphic: true
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# Add scopes for image ordering
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scope :pinned, -> { where(pinned: true) }
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scope :ordered, -> { order(:position) }
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# This is the old way we uploaded files -- now we're transitioning to ActiveStorage's has_one_attached
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has_attached_file :src,
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path: 'content/uploads/:style/:filename',
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styles: {
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thumb: '100x100>',
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small: '190x190#',
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square: '280x280#',
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medium: '300x300>',
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large: '600x600>',
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hero: '800x800>'
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},
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filename_cleaner: -> (filename) {
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[
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SecureRandom.uuid,
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File.extname(filename).downcase
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].join
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},
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s3_protocol: 'https'
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# has_one_attached :upload
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validates_attachment_content_type :src, content_type: /\Aimage\/.*\Z/
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# TODO add size validation
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before_destroy :delete_s3_image
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# Point content IDs to generalized content_id for cocoon
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alias_attribute 'character_id', :content_id
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#alias_attribute ...
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# Use acts_as_list for ordering images
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acts_as_list scope: [:content_type, :content_id]
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# Add callback to ensure only one pinned image per content
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before_save :ensure_single_pinned_image, if: -> { pinned_changed? && pinned? }
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def delete_s3_image
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# todo: put this in a task for faster delete response times
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src.destroy
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end
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private
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# Ensures only one image can be pinned per content item
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def ensure_single_pinned_image
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ImageUpload.where(content_type: content_type, content_id: content_id, pinned: true)
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.where.not(id: id)
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.update_all(pinned: false)
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end
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end
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