106 lines
3.2 KiB
Ruby
106 lines
3.2 KiB
Ruby
class Screenshot < ActiveRecord::Base
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belongs_to :package, :inverse_of=>:screenshots
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# default_scope {
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# order('created_at DESC')
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# }
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has_attached_file :image,
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styles: { :large => '800x600>', :thumb => '160x120>' },
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default_url: '/images/dummy/no-screenshots-available.svg',
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path: ':rails_root/public/screenshots/:id_partition/:style.png',
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url: '/screenshots/:id_partition/:style.png'
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validates_attachment_content_type :image, :content_type => 'image/png'
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validates_with AttachmentSizeValidator, :attributes => :image, :less_than => 5.megabytes
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validate :validate_image_is_unique
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# Validator that checks if the image has already been uploaded.
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# A generic uniqueness validator does not work because it would attribute
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# the error to the :image_fingerprint field and not the actual :image field.
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# Currently this check makes sure that the same screenshot is not uploaded
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# twice for the same package. However it allows the screenshot to be uploaded
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# for two different packages. Restricting that further may happen later.
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# TODO: will fail if screenshot is updated because it finds its own image
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def validate_image_is_unique
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# Look for images with the same checksum / image_fingerprint
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if screenshot=Screenshot.find_by(image_fingerprint: image_fingerprint, package_id: self.package.id)
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unless screenshot.id == self.id
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errors.add(:image, "has already been uploaded for this package")
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end
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end
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end
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# Calculate how many days ago this screenshot has been uploaded
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def age_days
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if self.created_at
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seconds = Time.now - self.created_at
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else
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seconds = 0
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end
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days = (seconds/86400).to_i
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days ? "#{days} days ago" : 'today'
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end
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# Return caption for full-screen screenshots.
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# Takes the description of a screenshot if available.
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# Otherwise it falls back to the general description of its package.
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def caption
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if self.description != ''
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"#{self.description} – Version #{self.version}"
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else
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"#{self.package.description} – Version #{self.version}"
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end
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end
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def uploader
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# TODO: Implement the ownership of images
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'Anonymous'
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end
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# Return Debshots 1.x path to allow migration of images into Paperclip filesystem schema
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def image_url(size)
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"live/screenshots/approved/#{self.package.name[0]}/#{self.package.name}/#{self.id}_#{size}.png"
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end
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# Long status text for public users
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def status
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text = 'This image '
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if self.approved
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text << 'is public'
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else
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text << 'has to be moderated before being publicly visible'
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end
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if self.markedfordelete
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text << ' (and was requested to be removed)'
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end
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return text
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end
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# Short status text for admins
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def adminstatus
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if self.markedfordelete
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"Removal requested > #{self.delete_reason}"
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elsif self.approved
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'Public'
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else
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'Waiting for approval'
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end
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end
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# Return the number of screenshots that need to be approved
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def self.unapproved
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self.where(approved: false)
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end
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# Publish a screenshot from the moderation queue
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def approve_screenshot!
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self.delete_reason = nil
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self.markedfordelete = false
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self.approved = true
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self.save!
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end
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end
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