65 lines
2.1 KiB
Ruby
65 lines
2.1 KiB
Ruby
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# frozen_string_literal: true
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module Topics
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class MergeService
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attr_accessor :source_topic, :target_topic
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def initialize(source_topic, target_topic)
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@source_topic = source_topic
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@target_topic = target_topic
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end
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def execute
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validate_parameters!
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::Projects::ProjectTopic.transaction do
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move_project_topics
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refresh_target_topic_counters
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delete_source_topic
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end
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end
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private
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def validate_parameters!
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raise ArgumentError, 'The source topic is not a topic.' unless source_topic.is_a?(Projects::Topic)
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raise ArgumentError, 'The target topic is not a topic.' unless target_topic.is_a?(Projects::Topic)
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raise ArgumentError, 'The source topic and the target topic are identical.' if source_topic == target_topic
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end
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# rubocop: disable CodeReuse/ActiveRecord
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def move_project_topics
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project_ids_for_projects_currently_using_source_and_target = ::Projects::ProjectTopic
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.where(topic_id: target_topic).select(:project_id)
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# Only update for projects that exclusively use the source topic
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::Projects::ProjectTopic.where(topic_id: source_topic.id)
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.where.not(project_id: project_ids_for_projects_currently_using_source_and_target)
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.update_all(topic_id: target_topic.id)
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# Delete source topic for projects that were using source and target
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::Projects::ProjectTopic.where(topic_id: source_topic.id).delete_all
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end
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def refresh_target_topic_counters
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target_topic.update!(
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total_projects_count: total_projects_count(target_topic.id),
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non_private_projects_count: non_private_projects_count(target_topic.id)
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)
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end
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def delete_source_topic
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source_topic.destroy!
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end
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def total_projects_count(topic_id)
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::Projects::ProjectTopic.where(topic_id: topic_id).count
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end
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def non_private_projects_count(topic_id)
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::Projects::ProjectTopic.joins(:project).where(topic_id: topic_id).where('projects.visibility_level in (10, 20)')
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.count
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end
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# rubocop: enable CodeReuse/ActiveRecord
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end
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end
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