105 行
3.5 KiB
Ruby
105 行
3.5 KiB
Ruby
class PostCreator
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class VideoMsParseError < ArgumentError; end
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attr_reader :field_warnings
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def initialize actor:, attributes:
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@actor = actor
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@attributes = attributes.symbolize_keys
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@field_warnings = { }
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end
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def create!
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thumbnail_attachment = prepare_thumbnail_attachment
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post = Post.new(title: @attributes[:title].presence,
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url: @attributes[:url],
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thumbnail_base: @attributes[:thumbnail_base].presence,
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uploaded_user: @actor,
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original_created_from: @attributes[:original_created_from].presence,
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original_created_before: @attributes[:original_created_before].presence)
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ApplicationRecord.transaction do
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post.save!
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post.thumbnail.attach(thumbnail_attachment) if thumbnail_attachment.present?
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tags = planned_tags
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sections = planned_sections
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TagVersioning.record_tag_snapshots!(tags, created_by_user: @actor)
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post.video_ms = planned_video_ms
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post.save!
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sync_post_tags!(post, tags, sections)
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sync_parent_posts!(post, planned_parent_post_ids)
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PostVersionRecorder.record!(post:, event_type: :create, created_by_user: @actor)
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end
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post
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rescue StandardError
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post&.thumbnail&.purge if post&.thumbnail&.attached?
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raise
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end
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private
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def prepare_thumbnail_attachment
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PostThumbnailAttachmentBuilder.build(
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thumbnail: @attributes[:thumbnail],
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thumbnail_base: @attributes[:thumbnail_base].presence)
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end
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def planned_tags = planned_create_attributes[:normalised_tags]
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def planned_sections = planned_create_attributes[:tag_sections]
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def planned_parent_post_ids = planned_create_attributes[:normalised_parent_post_ids]
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def planned_video_ms
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planned_create_attributes[:video_ms]
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end
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def planned_create_attributes
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@planned_create_attributes ||= begin
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if @attributes.key?(:normalised_tags)
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{
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normalised_tags: @attributes[:normalised_tags],
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tag_sections: @attributes[:tag_sections] || { },
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normalised_parent_post_ids: @attributes[:normalised_parent_post_ids] || [],
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video_ms: @attributes[:video_ms] }
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else
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PostCreatePlan.new(attributes: @attributes).build!
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end
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end
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end
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def sync_post_tags! post, desired_tags, sections
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desired_ids = desired_tags.map(&:id).to_set
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current_ids = post.tags.pluck(:id).to_set
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Tag.where(id: desired_ids - current_ids).find_each do |tag|
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PostTag.create_or_find_by!(post:, tag:, created_user: @actor)
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end
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PostTagSection.where(post_id: post.id).destroy_all
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sections.each do |tag_id, ranges|
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ranges.each do |begin_ms, end_ms|
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PostTagSection.create!(post_id: post.id,
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tag_id:,
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begin_ms:,
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end_ms:)
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end
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end
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PostTag.where(post_id: post.id,
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tag_id: (current_ids - desired_ids).to_a).kept.find_each do |post_tag|
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post_tag.discard_by!(@actor)
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end
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end
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def sync_parent_posts! post, ids
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if ids.include?(post.id)
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post.errors.add :parent_post_ids, '自分自身を親投稿にはできません．'
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raise ActiveRecord::RecordInvalid, post
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end
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missing = ids - Post.where(id: ids).pluck(:id)
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if missing.present?
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post.errors.add :parent_post_ids, "存在しない親投稿 Id. があります: #{ missing.join(' ') }"
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raise ActiveRecord::RecordInvalid, post
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end
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ids.each { |parent_post_id| PostImplication.create_or_find_by!(post:, parent_post_id:) }
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end
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end
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