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55a1394342
Doing .pluck(:column).first is a very common pattern in Discourse and in most cases, a limit cause isn't being added. Instead of adding a limit clause to all these callsites, this commit adds two new methods to ActiveRecord::Relation: pluck_first, equivalent to limit(1).pluck(*columns).first and pluck_first! which, like other finder methods, raises an exception when no record is found
20 lines
375 B
Ruby
20 lines
375 B
Ruby
# frozen_string_literal: true
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class ActiveRecord::Relation
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def pluck_first(*attributes)
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limit(1).pluck(*attributes).first
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end
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def pluck_first!(*attributes)
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items = limit(1).pluck(*attributes)
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raise_record_not_found_exception! if items.empty?
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items.first
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end
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end
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module ActiveRecord::Querying
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delegate(:pluck_first, :pluck_first!, to: :all)
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end
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