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30990006a9
This reduces chances of errors where consumers of strings mutate inputs and reduces memory usage of the app. Test suite passes now, but there may be some stuff left, so we will run a few sites on a branch prior to merging
91 lines
2.2 KiB
Ruby
91 lines
2.2 KiB
Ruby
# frozen_string_literal: true
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require_dependency 'topic_list'
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class SuggestedTopicsBuilder
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attr_reader :excluded_topic_ids
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def initialize(topic)
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@excluded_topic_ids = [topic.id]
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@category_id = topic.category_id
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@category_topic_ids = Category.topic_ids
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@results = []
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end
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def add_results(results, priority = :low)
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# WARNING .blank? will execute an Active Record query
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return unless results
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# Only add results if we don't have those topic ids already
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results = results
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.where('topics.id NOT IN (?)', @excluded_topic_ids)
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.where(visible: true)
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# If limit suggested to category is enabled, restrict to that category
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if @category_id && SiteSetting.limit_suggested_to_category?
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results = results.where(category_id: @category_id)
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end
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results = results.to_a
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results.reject! { |topic| @category_topic_ids.include?(topic.id) }
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unless results.empty?
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# protect against dupes
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temp = results
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results = []
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temp.each do |r|
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if !@excluded_topic_ids.include?(r.id)
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results << r
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@excluded_topic_ids << r.id
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end
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end
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splice_results(results, priority)
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end
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end
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def splice_results(results, priority)
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if priority == :ultra_high
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@results.insert 0, *results
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elsif @category_id && priority == :high
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# Topics from category @category_id need to be first in the list, all others after.
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other_category_index = @results.index { |r| r.category_id != @category_id }
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category_results, other_category_results = results.partition { |r| r.category_id == @category_id }
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if other_category_index
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@results.insert other_category_index, *category_results
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else
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@results.concat category_results
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end
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@results.concat other_category_results
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else
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@results.concat results
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end
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end
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def results
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@results.first(SiteSetting.suggested_topics)
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end
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def results_left
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SiteSetting.suggested_topics - @results.size
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end
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def full?
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results_left <= 0
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end
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def category_results_left
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SiteSetting.suggested_topics - @results.count { |r| r.category_id == @category_id }
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end
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def size
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@results.size
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end
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end
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