method
_increment_attribute
v7.1.3.4 -
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Class: ActiveRecord::Relation
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_increment_attribute(attribute, value = 1)
private
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# File activerecord/lib/active_record/relation.rb, line 948 def _increment_attribute(attribute, value = 1) bind = predicate_builder.build_bind_attribute(attribute.name, value.abs) expr = table.coalesce(Arel::Nodes::UnqualifiedColumn.new(attribute), 0) expr = value < 0 ? expr - bind : expr + bind expr.expr end