70 lines
2.7 KiB
Ruby
70 lines
2.7 KiB
Ruby
# frozen_string_literal: true
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# This service return notes grouped by discussion ID and paginated per discussion.
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# System notes also have a discussion ID assigned including Synthetic system notes.
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module Issuable
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class DiscussionsListService
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include RendersNotes
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include Gitlab::Utils::StrongMemoize
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attr_reader :current_user, :issuable, :params
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def initialize(current_user, issuable, params = {})
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@current_user = current_user
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@issuable = issuable
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@params = params.dup
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end
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def execute
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return Note.none unless can_read_issuable?
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notes = NotesFinder.new(current_user, params.merge({ target: issuable, project: issuable.project }))
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.execute.with_web_entity_associations.inc_relations_for_view.fresh
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if paginator
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paginated_discussions_by_type = paginator.records.group_by(&:table_name)
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notes = if paginated_discussions_by_type['notes'].present?
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notes.with_discussion_ids(paginated_discussions_by_type['notes'].map(&:discussion_id))
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else
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notes.none
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end
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end
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if params[:notes_filter] != UserPreference::NOTES_FILTERS[:only_comments]
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notes = ResourceEvents::MergeIntoNotesService.new(
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issuable, current_user, paginated_notes: paginated_discussions_by_type
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).execute(notes)
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end
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notes = prepare_notes_for_rendering(notes)
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# TODO: optimize this permission check.
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# Given this loads notes on a single issuable and current permission system, we should not have to check
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# permission on every single note. We should be able to check permission on the given issuable or its container,
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# which should result in just one permission check. Perhaps that should also either be passed to NotesFinder or
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# should be done in NotesFinder, which would decide right away if it would need to return no notes
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# or if it should just filter out internal notes.
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notes = notes.select { |n| n.readable_by?(current_user) }
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Discussion.build_collection(notes, issuable)
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end
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def paginator
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return if params[:per_page].blank?
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return if issuable.instance_of?(MergeRequest) && Feature.disabled?(:paginated_mr_discussions, issuable.project)
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strong_memoize(:paginator) do
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issuable
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.discussion_root_note_ids(notes_filter: params[:notes_filter])
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.keyset_paginate(cursor: params[:cursor], per_page: params[:per_page].to_i)
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end
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end
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def can_read_issuable?
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return Ability.allowed?(current_user, :read_security_resource, issuable) if issuable.is_a?(Vulnerability)
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Ability.allowed?(current_user, :"read_#{issuable.to_ability_name}", issuable)
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end
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end
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end
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