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Contents
# encoding: utf-8
module Mongoid #:nodoc:
module Criterion #:nodoc:
# Complex criterion are used when performing operations on symbols to get
# get a shorthand syntax for where clauses.
#
# @example Conversion of a simple to complex criterion.
# { :field => { "$lt" => "value" } }
# becomes:
# { :field.lt => "value }
class Complex
attr_accessor :key, :operator
# Create the new complex criterion.
#
# @example Instantiate a new complex criterion.
# Complex.new(:key => :field, :operator => "$gt")
#
# @param [ Hash ] opts The options to convert.
def initialize(opts = {})
@key, @operator = opts[:key], opts[:operator]
end
# Get the criterion as a hash.
#
# @example Get the criterion as a hash.
# criterion.hash
#
# @return [ Hash ] The keys and operators.
def hash
[@key, @operator].hash
end
# Is the criterion equal to the other?
#
# @example Check equality.
# criterion.eql?(other)
#
# @param [ Complex ] other The other complex criterion.
#
# @return [ true, false ] If they are equal.
def eql?(other)
self == (other)
end
# Is the criterion equal to the other?
#
# @example Check equality.
# criterion == other
#
# @param [ Complex ] other The other complex criterion.
#
# @return [ true, false ] If they are equal.
def ==(other)
return false unless other.is_a?(self.class)
self.key == other.key && self.operator == other.operator
end
# Returns the name of the key as a string.
#
# @example Get the name of the key.
# criterion.to_s
#
# @return [ String ] The field name.
#
# @since 2.1.0
def to_s
key.to_s
end
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems