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https://github.com/scinote-eln/scinote-web.git
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139 lines
4.4 KiB
Ruby
139 lines
4.4 KiB
Ruby
# frozen_string_literal: true
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module TinyMceImages
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extend ActiveSupport::Concern
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included do
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has_many :tiny_mce_assets,
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as: :object,
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class_name: :TinyMceAsset,
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dependent: :destroy
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before_save :clean_tiny_mce_image_urls
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def prepare_for_report(field)
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description = self[field]
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# Check tinymce for old format
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description = TinyMceAsset.update_old_tinymce(description, self)
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tiny_mce_assets.each do |tm_asset|
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tmp_f = Tempfile.open(tm_asset.image_file_name, Rails.root.join('tmp'))
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begin
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tm_asset.image.copy_to_local_file(:large, tmp_f.path)
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encoded_tm_asset = Base64.strict_encode64(tmp_f.read)
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new_tm_asset_src = "data:image/jpg;base64,#{encoded_tm_asset}"
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html_description = Nokogiri::HTML(description)
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tm_asset_to_update = html_description.css(
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"img[data-mce-token=\"#{Base62.encode(tm_asset.id)}\"]"
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)[0]
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next unless tm_asset_to_update
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tm_asset_to_update.attributes['src'].value = new_tm_asset_src
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description = html_description.css('body').inner_html.to_s
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ensure
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tmp_f.close
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tmp_f.unlink
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end
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end
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description
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end
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def tinymce_render(field)
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TinyMceAsset.generate_url(self[field], self)
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end
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# Takes array of old/new TinyMCE asset ID pairs
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# and updates references in assosiated object's description
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def reassign_tiny_mce_image_references(images = [])
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object_field = Extends::RICH_TEXT_FIELD_MAPPINGS[self.class.name]
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description = read_attribute(object_field)
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# Check tinymce for old format
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description = TinyMceAsset.update_old_tinymce(description, self)
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parsed_description = Nokogiri::HTML(description)
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images.each do |image|
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old_id = image[0]
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new_id = image[1]
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image = parsed_description.at_css("img[data-mce-token=\"#{Base62.encode(old_id)}\"]")
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unless image
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Rails.logger.error "TinyMCE Asset with id #{old_id} not in text"
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next
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end
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image['data-mce-token'] = Base62.encode(new_id)
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end
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update(object_field => parsed_description.css('body').inner_html.to_s)
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end
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def clone_tinymce_assets(target, team)
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cloned_img_ids = []
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tiny_mce_assets.each do |tiny_img|
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tiny_img_clone = TinyMceAsset.new(
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image: tiny_img.image,
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estimated_size: tiny_img.estimated_size,
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object: target,
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team: team
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)
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tiny_img_clone.save!
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target.tiny_mce_assets << tiny_img_clone
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cloned_img_ids << [tiny_img.id, tiny_img_clone.id]
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end
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target.reassign_tiny_mce_image_references(cloned_img_ids)
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end
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def copy_unknown_tiny_mce_images
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asset_team_id = Team.find_by_object(self)
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return unless asset_team_id
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object_field = Extends::RICH_TEXT_FIELD_MAPPINGS[self.class.name]
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image_changed = false
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parsed_description = Nokogiri::HTML(read_attribute(object_field))
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parsed_description.css('img').each do |image|
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if image['data-mce-token']
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asset = TinyMceAsset.find_by_id(Base62.decode(image['data-mce-token']))
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next if asset && (asset.object == self || asset_team_id != asset.team_id)
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new_image = asset.image
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else
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new_image = URI.parse(image['src'])
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end
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new_asset = TinyMceAsset.create(
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image: new_image,
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object: self,
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team_id: asset_team_id
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)
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image['src'] = ''
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image['class'] = 'img-responsive'
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image['data-mce-token'] = Base62.encode(new_asset.id)
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image_changed = true
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end
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update(object_field => parsed_description.css('body').inner_html.to_s) if image_changed
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rescue StandardError => e
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Rails.logger.error "Object: #{self.class.name}, id: #{id}, error: #{e.message}"
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end
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private
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def clean_tiny_mce_image_urls
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object_field = Extends::RICH_TEXT_FIELD_MAPPINGS[self.class.name]
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return unless changed.include?(object_field.to_s)
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image_changed = false
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parsed_description = Nokogiri::HTML(read_attribute(object_field))
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parsed_description.css('img[data-mce-token]').each do |image|
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image['src'] = ''
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image['class'] = 'img-responsive'
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image_changed = true
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end
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self[object_field] = parsed_description.to_html if image_changed
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end
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end
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end
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