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# encoding: utf-8
module Origin
module Extensions
# This module contains additional symbol behaviour.
module Symbol
# Get the symbol as a specification.
#
# @example Get the symbol as a criteria.
# :field.__expr_part__(value)
#
# @param [ Object ] value The value of the criteria.
# @param [ true, false ] negating If the selection should be negated.
#
# @return [ Hash ] The selection.
#
# @since 1.0.0
def __expr_part__(value, negating = false)
::String.__expr_part__(self, value, negating)
end
# Get the symbol as a sort direction.
#
# @example Get the symbol as a sort direction.
# "1".to_direction
#
# @return [ Integer ] The direction.
#
# @since 1.0.0
def to_direction
to_s.to_direction
end
module ClassMethods
# Adds a method on symbol as a convenience for the MongoDB operator.
#
# @example Add the $in method.
# Symbol.add_key(:in, "$in")
#
# @param [ Symbol ] name The name of the method.
# @param [ Symbol ] strategy The name of the merge strategy.
# @param [ String ] operator The MongoDB operator.
# @param [ String ] additional The additional MongoDB operator.
#
# @since 1.0.0
def add_key(name, strategy, operator, additional = nil, &block)
define_method(name) do
method = "__#{strategy}__".to_sym
Key.new(self, method, operator, additional, &block)
end
end
# Evolves the symbol into a MongoDB friendly value - in this case
# a symbol.
#
# @example Evolve the symbol
# Symbol.evolve("test")
#
# @param [ Object ] object The object to convert.
#
# @return [ Symbol ] The value as a symbol.
#
# @since 1.0.0
def evolve(object)
__evolve__(object) { |obj| obj.to_sym }
end
end
end
end
end
::Symbol.__send__(:include, Origin::Extensions::Symbol)
::Symbol.__send__(:extend, Origin::Extensions::Symbol::ClassMethods)
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