Rails' Object#blank? and Object#present? return true for empty
Enumerable objects. This is because they don't implement #empty?.
Our prior effort to optimize these methods for Relation by delegating them to
#each broke them for this reason, always returning true. Instead, we
delegate #any? which does exist, and implement Relation#empty? directly as
its inverse. Rails provides the #blank? and #present? implementations.
Rails'
Object#blank?andObject#present?returntruefor emptyEnumerableobjects. This is because they don't implement#empty?.Our prior effort to optimize these methods for
Relationby delegating them to#eachbroke them for this reason, always returningtrue. Instead, we delegate#any?which does exist, and implementRelation#empty?directly as its inverse. Rails provides the#blank?and#present?implementations.