78 lines
2.0 KiB
Ruby
78 lines
2.0 KiB
Ruby
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.pluck(:topic_id).compact
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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.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.reject { |topic| @category_topic_ids.include?(topic.id) }
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unless results.empty?
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# Keep track of the ids we've added
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@excluded_topic_ids.concat results.map {|r| r.id}
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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 @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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