[MONGOID-4908] Range as field-level operator argument generates bogus queries - MongoDB Jira

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Mongoid has a handy shortcut to convert Range objects to a $gte/$lte pair:

irb(main):070:0> job.tasks.where(hour: 10..15)

=>

#<Mongoid::Criteria

  selector: {"hour"=>{"$gte"=>10, "$lte"=>15}}

  options:  {}

  class:    Task

  embedded: true>

Unfortunately, when the Range object is an argument of a field-level operator, the result is a bogus query:

irb(main):071:0> job.tasks.where(hour: {'$eq':10..15})

=>

#<Mongoid::Criteria

  selector: {"hour"=>{:$eq=>{"$gte"=>10, "$lte"=>15}}}

  options:  {}

  class:    Task

  embedded: true>

The latter case should ideally be detected and raise an exception during query construction.

related to

MONGOID-4781 Make embedded matchers work the same as MongoDB server queries