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Contents
require "flipper/expression"
module Flipper
module Gates
class Expression < Gate
# Internal: The name of the gate. Used for instrumentation, etc.
def name
:expression
end
# Internal: Name converted to value safe for adapter.
def key
:expression
end
def data_type
:json
end
def enabled?(value)
!value.nil? && !value.empty?
end
# Internal: Checks if the gate is open for a thing.
#
# Returns true if gate open for thing, false if not.
def open?(context)
data = context.values.expression
return false if data.nil? || data.empty?
expression = Flipper::Expression.build(data)
if context.actors.nil? || context.actors.empty?
!!expression.evaluate(feature_name: context.feature_name, properties: DEFAULT_PROPERTIES)
else
context.actors.any? do |actor|
!!expression.evaluate(feature_name: context.feature_name, properties: properties(actor))
end
end
end
def protects?(thing)
thing.is_a?(Flipper::Expression) || thing.is_a?(Hash)
end
def wrap(thing)
Flipper::Expression.build(thing)
end
private
# Internal
DEFAULT_PROPERTIES = {}.freeze
def properties(actor)
return DEFAULT_PROPERTIES if actor.nil?
properties = {}
if actor.respond_to?(:flipper_properties)
properties.update(actor.flipper_properties)
else
warn "#{actor.inspect} does not respond to `flipper_properties` but should."
end
properties.transform_keys!(&:to_s)
if actor.respond_to?(:flipper_id)
properties["flipper_id".freeze] = actor.flipper_id
end
properties
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems