lib/mongoid/matcher/regex.rb
# rubocop:todo all
module Mongoid
module Matcher
# In-memory matcher for $regex expression.
#
# @see https://www.mongodb.com/docs/manual/reference/operator/query/regex/
#
# @api private
module Regex
# Returns whether a value satisfies a $regex expression.
#
# @param [ true | false ] exists Not used.
# @param [ String | Array<String> ] value The value to check.
# @param [ Regexp | BSON::Regexp::Raw ] condition The $regex condition.
#
# @return [ true | false ] Whether the value matches.
#
# @api private
module_function def matches?(exists, value, condition)
condition = case condition
when Regexp
condition
when BSON::Regexp::Raw
condition.compile
else
# Note that strings must have been converted to a regular expression
# instance already (with $options taken into account, if provided).
raise Errors::InvalidQuery, "$regex requires a regular expression argument: #{Errors::InvalidQuery.truncate_expr(condition)}"
end
case value
when Array
value.any? do |v|
v =~ condition
end
when String
value =~ condition
else
false
end
end
# Returns whether an scalar or array value matches a Regexp.
#
# @param [ true | false ] exists Not used.
# @param [ String | Array<String> ] value The value to check.
# @param [ Regexp ] condition The Regexp condition.
#
# @return [ true | false ] Whether the value matches.
#
# @api private
module_function def matches_array_or_scalar?(value, condition)
if Array === value
value.any? do |v|
matches?(true, v, condition)
end
else
matches?(true, value, condition)
end
end
end
end
end