discourse/lib/suggested_topics_builder.rb

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require_dependency 'topic_list'
class SuggestedTopicsBuilder
attr_reader :excluded_topic_ids
attr_reader :results
def initialize(topic)
@excluded_topic_ids = [topic.id]
@results = []
end
def add_results(results)
# WARNING .blank? will execute an Active Record query
return unless results
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# Only add results if we don't have those topic ids already
results = results.where('topics.id NOT IN (?)', @excluded_topic_ids)
.where(closed: false, archived: false, visible: true)
.to_a
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unless results.empty?
# Keep track of the ids we've added
@excluded_topic_ids.concat results.map {|r| r.id}
@results.concat results
end
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end
def results_left
SiteSetting.suggested_topics - @results.size
end
def full?
results_left == 0
end
def size
@results.size
end
end