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ecc9c76692
The site settings beginning with "topic views heat" and "topic post like heat" are set to defaults when installing Discourse, but there has not been a process or guidance for updating these values based on community activity. This feature will update them once a month. The low, medium, and high settings will be based on the minimums of the 45th, 25th, and 10th percentile topics respectively, so that 45% of topics will have some "heat". Disable automatic changes with the automatic_topic_heat_values setting.
82 lines
2.4 KiB
Ruby
82 lines
2.4 KiB
Ruby
# frozen_string_literal: true
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class HeatSettingsUpdater
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def self.update
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return unless SiteSetting.automatic_topic_heat_values
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views_by_percentile = views_thresholds
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update_setting(:topic_views_heat_high, views_by_percentile[10])
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update_setting(:topic_views_heat_medium, views_by_percentile[25])
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update_setting(:topic_views_heat_low, views_by_percentile[45])
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like_ratios_by_percentile = like_ratio_thresholds
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update_setting(:topic_post_like_heat_high, like_ratios_by_percentile[10])
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update_setting(:topic_post_like_heat_medium, like_ratios_by_percentile[25])
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update_setting(:topic_post_like_heat_low, like_ratios_by_percentile[45])
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end
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def self.views_thresholds
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results = DB.query(<<~SQL)
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SELECT ranked.bucket * 5 as percentile, MIN(ranked.views) as views
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FROM (
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SELECT NTILE(20) OVER (ORDER BY t.views DESC) AS bucket, t.views
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FROM (
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SELECT views
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FROM topics
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WHERE deleted_at IS NULL
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AND archetype <> 'private_message'
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AND visible = TRUE
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) t
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) ranked
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WHERE bucket <= 9
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GROUP BY bucket
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SQL
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results.inject({}) do |h, row|
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h[row.percentile] = row.views
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h
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end
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end
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def self.like_ratio_thresholds
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results = DB.query(<<~SQL)
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SELECT ranked.bucket * 5 as percentile, MIN(ranked.ratio) as like_ratio
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FROM (
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SELECT NTILE(20) OVER (ORDER BY t.ratio DESC) AS bucket, t.ratio
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FROM (
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SELECT like_count::decimal / posts_count AS ratio
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FROM topics
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WHERE deleted_at IS NULL
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AND archetype <> 'private_message'
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AND visible = TRUE
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AND posts_count >= 10
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AND like_count > 0
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ORDER BY created_at DESC
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LIMIT 1000
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) t
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) ranked
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WHERE bucket <= 9
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GROUP BY bucket
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SQL
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results.inject({}) do |h, row|
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h[row.percentile] = row.like_ratio
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h
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end
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end
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def self.update_setting(name, new_value)
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if new_value.nil? || new_value <= SiteSetting.defaults[name]
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if SiteSetting.get(name) != SiteSetting.defaults[name]
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SiteSetting.set_and_log(name, SiteSetting.defaults[name])
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end
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elsif SiteSetting.get(name) == 0 ||
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(new_value.to_f / SiteSetting.get(name) - 1.0).abs >= 0.05
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if SiteSetting.get(name) != new_value
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SiteSetting.set_and_log(name, new_value)
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end
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end
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end
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end
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