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Rule format

Condition expressions

Operators

Operator Name Syntax Associativity Example Result
(, ) Grouping (x) None 2 * (3 + 4) 14
and Logical and x and y L🡒R true and false false
or Logical or x or y L🡒R true or false true
is Equal x is 5 L🡒R 5 is 6 false
not Unequal x not 5 L🡒R 5 not 6 true
in Existential x in y L🡒R cat in [cat,dog] true
!in Existential x !in y L🡒R cat !in [cat,dog] false
exists Existential x exists L🡒R user active program exists **
empty Existential x empty L🡒R user active program empty **
includes List test x includes 'cat' L🡒R user label includes [star] **
excludes List test x excludes 'cat' L🡒R user label includes [star] **
== Equal x == y L🡒R 2 == 4 false
!= Unequal x != y L🡒R 2 != 3 true
< Smaller x < y L🡒R 2 < 3 true
> Larger x > y L🡒R 2 > 3 false
<= Smallereq x <= y L🡒R 4 <= 3 false
>= Largereq x >= y L🡒R 2 + 4 >= 6 true

Objects

  • user: session user
    • group: active groups
    • label: active labels
    • program: history
    • active program: current
    • active program-group: current
    • membership: external status
    • Values: self, other, admin
  • values: based on input
  • profile: name, first, last, timzeone, email, role, locale, translate, gender, genderDetail, age
  • attribute: attribute path (dispatch only)

Functions

  • #now
  • #random
  • #version
  • #platform
    • Technology: android, ios, native (either iOS or Android), web
    • Form factor: web, mobile, tablet

Examples

(3 is 3) and (1 not 1 or 2 is 2)
test in [hey, ok, test]
user is admin
user is self
user is other
user program includes [handles]
user group includes [handles]
user label includes [handles]
user membership includes [strings]
user membership is string
user active program exists
user active program includes [handles]
profile.gender is 'female'
profile.age < 30
#platform is android
#platform is ios
#platform is web
#platform not web
#version > 3.0.100
#version >= 3.0.0
values.field is 'something'
#now < 16:00
#now < 2020-08-01
#random 1 / 2

Usage notes

  1. #random allows rules that happen some time; for example #random 1/2 would be true 50% of the time
  2. #version enables the ability to hide functionality that won't work on older versions