24 lines
845 B
Ruby
24 lines
845 B
Ruby
# frozen_string_literal: true
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module Jobs
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class RetroRecentTimeRead < Jobs::Onceoff
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def execute_onceoff(args)
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# update past records by evenly distributing total time reading among each post read
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sql = <<~SQL
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UPDATE user_visits uv1
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SET time_read = (
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SELECT (
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uv1.posts_read
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/ (SELECT CAST(sum(uv2.posts_read) AS FLOAT) FROM user_visits uv2 where uv2.user_id = uv1.user_id)
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* COALESCE((SELECT us.time_read FROM user_stats us WHERE us.user_id = uv1.user_id), 0)
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)
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)
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WHERE EXISTS (SELECT 1 FROM user_stats stats WHERE stats.user_id = uv1.user_id AND stats.posts_read_count > 0 LIMIT 1)
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AND EXISTS (SELECT 1 FROM user_visits visits WHERE visits.user_id = uv1.user_id AND visits.posts_read > 0 LIMIT 1)
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SQL
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DB.exec(sql)
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end
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end
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end
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