module Mongoid::Matcher::Not

In-memory matcher for $not expression.

@see www.mongodb.com/docs/manual/reference/operator/query/not/

@api private

Public Instance Methods

matches?(exists, value, condition) click to toggle source

Returns whether a value satisfies an $not expression.

@param [ true | false ] exists Whether the value exists. @param [ Object ] value The value to check. @param [ Hash | Regexp | BSON::Regexp::Raw ] condition

The $not condition predicate.

@return [ true | false ] Whether the value matches.

@api private

# File lib/mongoid/matcher/not.rb, line 22
                def matches?(exists, value, condition)
  case condition
  when ::Regexp, BSON::Regexp::Raw
    !Regex.matches?(exists, value, condition)
  when Hash
    if condition.empty?
      raise Errors::InvalidQuery, "$not argument cannot be an empty hash: #{Errors::InvalidQuery.truncate_expr(condition)}"
    end

    condition.all? do |(k, cond_v)|
      k = k.to_s
      unless k.start_with?('$')
        raise Errors::InvalidQuery, "$not arguments must be operators: #{Errors::InvalidQuery.truncate_expr(k)}"
      end

      !FieldOperator.get(k).matches?(exists, value, cond_v)
    end
  else
    raise Errors::InvalidQuery, "$not argument must be a Hash or a regular expression: #{Errors::InvalidQuery.truncate_expr(condition)}"
  end
end