forked from treehouse/mastodon
68 lines
2.1 KiB
Ruby
68 lines
2.1 KiB
Ruby
# frozen_string_literal: true
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# == Schema Information
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#
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# Table name: preview_cards
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#
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# id :integer not null, primary key
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# url :string default(""), not null
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# title :string default(""), not null
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# description :string default(""), not null
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# image_file_name :string
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# image_content_type :string
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# image_file_size :integer
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# image_updated_at :datetime
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# type :integer default("link"), not null
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# html :text default(""), not null
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# author_name :string default(""), not null
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# author_url :string default(""), not null
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# provider_name :string default(""), not null
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# provider_url :string default(""), not null
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# width :integer default(0), not null
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# height :integer default(0), not null
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# created_at :datetime not null
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# updated_at :datetime not null
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# embed_url :string default(""), not null
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#
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class PreviewCard < ApplicationRecord
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IMAGE_MIME_TYPES = ['image/jpeg', 'image/png', 'image/gif'].freeze
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self.inheritance_column = false
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enum type: [:link, :photo, :video, :rich]
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has_and_belongs_to_many :statuses
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has_attached_file :image, styles: { original: '280x280>' }, convert_options: { all: '-quality 80 -strip' }
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include Attachmentable
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include Remotable
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validates :url, presence: true, uniqueness: true
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validates_attachment_content_type :image, content_type: IMAGE_MIME_TYPES
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validates_attachment_size :image, less_than: 1.megabytes
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before_save :extract_dimensions, if: :link?
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def save_with_optional_image!
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save!
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rescue ActiveRecord::RecordInvalid
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self.image = nil
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save!
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end
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private
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def extract_dimensions
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file = image.queued_for_write[:original]
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return if file.nil?
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geo = Paperclip::Geometry.from_file(file)
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self.width = geo.width.to_i
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self.height = geo.height.to_i
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rescue Paperclip::Errors::NotIdentifiedByImageMagickError
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nil
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end
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end
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