Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Unsolved
Collapse
Discussion Forum to share and further the development of home control and automation, independent of platforms.
  1. Home
  2. Software
  3. Multi-System Reactor
  4. Passing expression variables between rules
[Reactor] Variables not updating correctly in latest-25201-2aa18550
therealdbT
Topic thumbnail image
Multi-System Reactor
Handling Dead Entities and Renamed Entities
PablaP
Hello all.. been a minute! I recently rebuilt my Z wave network and migrated to a new z wave stick. In order to prevent any downtime I kept my original z wave network up and ran a docker version of Z Wave JS UI with my new controller. This way I could add device by device without having any devices down. I finally moved all the devices over to my new stick today. The final step was to migrate everything from my Docker instance of Z Wave JS UI to the HA add-on of Z Wave JS UI. However during this migration some of the names didn't populate correctly which I later managed to import back into Z Wave JS UI. The issue was in Reactor it is stuck on the default names and the entities are not updating. I removed the controller from Reactor, restarted, hard refreshed, and added the controller back however the new entity names have not updated. Also it seems like the old entities from my previous instance of Z Wave JS UI are lingering and not being marked as dead (I believe a certain amount of time needs to lapse before they're marked as dead in Reactor). My goal is to basically purge all the entities for the 'ZWaveJS' controller in Reactor so it can pull all the updated entity names and only the entities that exist in Z Wave JS UI. I cannot find a quick way to do this, I know entities can be deleted one by one, but with over 100 entities this would take long I am guessing that if I added the controller with a new name in in the Reactor config it would pull the updated entities and names but I think that would break my rules since the entity IDs would change (I made sure to name all the entities the exact same as they were previously to prevent this issue).
Multi-System Reactor
Strange behavior for MQTT templates using payload and attributes
therealdbT
Topic thumbnail image
Multi-System Reactor
[MSR] reactor-mqtt-contrib package for additional MQTT templates
therealdbT
I'm slowly migrating all my stuff to MQTT under MSR, so I have a central place to integrate everything (and, in a not-so-distant future, to remove virtual devices from my Vera and leave it running zwave only). Anyway, here's my reactor-mqtt-contrib package: https://github.com/dbochicchio/reactor-mqtt-contrib Simply download yaml files (everything or just the ones you need) and you're good to go. I have mapped my most useful devices, but I'll add others soon. Feel free to ask for specific templates, since I've worked a lot in the last weeks to understand and operate them. The templates are supporting both init and query, so you have always up-to-date devices at startup, and the ability to poll them. Online status is supported as well, so you can get disconnected devices with a simple expression. Many-many thanks to @toggledbits for its dedication, support, and patience with me and my requests
Multi-System Reactor
HA 2025.9.4 Supported Yet?
CatmanV2C
Tangentially did I miss 2025.9.4 getting blessed in MSR? I've been holding off Cheers C
Multi-System Reactor
The reaction stopped working (Google Nest max playing a video)
F
Topic thumbnail image
Multi-System Reactor
Rule Set UI bug - RESOLVED
3
Topic thumbnail image
Multi-System Reactor
[Reactor] Copy&Paste of Rules
therealdbT
I don't know if I'm the only one, but managing more than one Reactor installs, the need to have some sort of copy&paste for rules has grown on me. While I understand the technical challenges, I'm wondering if a "god mode" where I could copy the raw JSON rule and paste it into another rule could be an advanced, flag only feature that could benefit power users. I know I can copy the JSON file and proceed, but I must stop Reactor and when doing maintenance, it's more clicks to do. Just an idea
Multi-System Reactor
[Reactor] Help with screne controller cycling logic
therealdbT
I’ve added a couple of Shelly Wave i4 as scene controllers and I’m planning to add more, since I can just use standard buttons instead of battery-powered scene controllers, which also looks better aesthetically. That said, I’m struggling to figure out how to write a simple rule that cycles between states every time I press a button. Example: Light 1 ON → OFF, then Light 2 ON → OFF. The part I can’t get right is handling the case where Light 1 or Light 2 might already be ON independently of the rule. Maybe it’s just too much sun and relaxation clouding my brain, but any hint would be appreciated.
Multi-System Reactor
Stop the MSR by an external switch on Hubitat.
wmarcolinW
Use case: When performing home maintenance, such as air conditioning, I want all rules involving air conditioning to be disabled. To do this, to day, I have a virtual switch that I placed within all rules involving air conditioning, meaning that if I turn it off, none of them work. Then another situation: the water pump system and garden irrigation, another switch. In short, I had to create several virtual switches in Hubitat to disable rules in MSR. Unfortunately, however, I was unable to cover all scenarios, so I wondered if it would be possible for MSR to support a virtual MSR switch, which, when configured in the reactor settings, would function as a general on/off switch for MSR. If it is configured and turned off, the entire rules and actions in MSR stops working, except for the status change reading process, specifically for this switch, which, when turned on, would restart the MSR. Would it be possible to do something like this? Any recommendations from the experts?
Multi-System Reactor
Expose MSR entities
CatmanV2C
Probably a really dumb question. Currently I am using the owntracks_sensor for tracking phones being in region in MSR and it works great. Digging around with Home Assistant and toying with some dashboards, is there any way of exposing that sensor to HA trivially? I could set MSR to trip a virtual switch in OpenLuup which can then be exposed to HA (with all my other Vera devices) but that feels a bit in-elegant if I can do it directly. Any thoughts? Apologies if the ask is not clear/ TIA C
Multi-System Reactor
Comment in Globa Expressions
Tom_DT
I have several Global Expressions that are set by a rule so the definition area is blank. I'd like to add a comment in this area that explains what is setting the value. Commenting in this area breaks the remote setting. Any way to document what is setting the GE?
Multi-System Reactor
Unofficial thread for compatibility
tunnusT
As there are statements about compatibility for home assistant versions in MSR new version announcements (e.g. "HassController: Bless Hass to 2025.7.3"), I thought it would be good idea to track other controllers as well. As an example, I can confirm that build "latest-25208-c53e8513" works with Hubitat Elevation C-8 platform version 2.4.2.134 using Maker API. Updates: (the latest versions first in the list) OK: build "latest-25264-2fbe9217" with Hubitat C-8 platform v. 2.4.3.123
Multi-System Reactor
Gradually turn on lights.
Tom_DT
I have several lights that I would like to turn on very gradually over 15 or 20 seconds. from 0 to .25 in .01 increments. I have tried a few things that came nowhere near working, so here I am.
Multi-System Reactor
Reactor (Multi-System/Multi-Hub) Announcements
toggledbitsT
Build 21228 has been released. Docker images available from DockerHub as usual, and bare-metal packages here. Home Assistant up to version 2021.8.6 supported; the online version of the manual will now state the current supported versions; Fix an error in OWMWeatherController that could cause it to stop updating; Unify the approach to entity filtering on all hub interface classes (controllers); this works for device entities only; it may be extended to other entities later; Improve error detail in messages for EzloController during auth phase; Add isRuleSet() and isRuleEnabled() functions to expressions extensions; Implement set action for lock and passage capabilities (makes them more easily scriptable in some cases); Fix a place in the UI where 24-hour time was not being displayed.
Multi-System Reactor
Can't customize home page
G
I foolishly let my system wipe all cookies this morning and with it my settings for my MSR home page. Once logged back in I can no longer remove errant panes nor is the + available to add new ones. Brave Browser v1.80.122 (Jul 16, 2025) What have I done?! Will check other browsers on my M1. UPDATE: Safari exhibits same behaviour. I've tried both sans last-four public key entry and with - no change.
Multi-System Reactor
Error After Upgrade
T
Topic thumbnail image
Multi-System Reactor
Reset attribute value of entity in event handler
R
Topic thumbnail image
Multi-System Reactor
Need help figuring out how to delay a reset on reaction
T
Topic thumbnail image
Multi-System Reactor
Way to search for rules (rule state) in other rules
T
@toggledbits, not sure if this is a feature request or I'm using the search tool wrong. You have a "Search for rule" in the Rules Set tab in MSR. It works nicely to find a rule and bring up said rule, but can it/could it be used for as a "where used?" global search? For instance, I have a fairly large set of rules, divided up into 10 different rulesets. There's easily a hundred individual rules, and many of the rules have Rule State triggers, which of course refer to other rules. Amongst my troubleshooting today, I came across what may have been a duplicate or troubleshooting attempt, but I can't tell if it's actually used as a Rule State in another rule without opening each rule that I suspect it may be a part of. Thanks.
Multi-System Reactor

Passing expression variables between rules

Scheduled Pinned Locked Moved Multi-System Reactor
9 Posts 2 Posters 692 Views 2 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • M Offline
    M Offline
    maddios
    wrote on last edited by maddios
    #1

    Is there a way to get a variable from a rule into an expression of some other rule?

    Just like what Vera Reactor did with the Export button then allowing you to reference that variable in another rule set. I'm guessing there's a function like there was in vera getstate()? Thanks

    Hopefully my question is clear, it's late 🙂

    1 Reply Last reply
    0
    • M Offline
      M Offline
      maddios
      wrote on last edited by
      #2

      I've found I can see variables from other rule sets within the rules themselves, via the "Variable Value" condition type. Just need to figure out now how to get to this in an expression.

      toggledbitsT 1 Reply Last reply
      0
      • M maddios

        I've found I can see variables from other rule sets within the rules themselves, via the "Variable Value" condition type. Just need to figure out now how to get to this in an expression.

        toggledbitsT Offline
        toggledbitsT Offline
        toggledbits
        wrote on last edited by
        #3

        @maddios said in Passing expression variables between rules:

        I've found I can see variables from other rule sets within the rules themselves

        That's a bug. Rule-based expressions are only in scope within the rule that defines them (just as local variables in almost any language are available in the scope that defines them). For the same reason, you cannot refer to variables in other rules from an expression.

        Author of Multi-system Reactor and Reactor, DelayLight, Switchboard, and about a dozen other plugins that run on Vera and openLuup.

        1 Reply Last reply
        0
        • M Offline
          M Offline
          maddios
          wrote on last edited by maddios
          #4

          Ah, so I can't copy over some of my vera reactor logic.

          How do I reference global variables within rules? do they just work like local variables? or is there some sort of global scope object I have to use?

          I'm guessing I can pass data between rules by using a global expression

          Also, how do you recommend structuring one of your old guides where a bathroom humidity sensor samples humidity into a dictionary then calculates averages and such. then another vera reactor was consuming that average and checking if it's above/below current humidity and turning a fan on off?

          Thanks

          1 Reply Last reply
          0
          • M Offline
            M Offline
            maddios
            wrote on last edited by
            #5

            Let me know if this is correct, I'm using a reaction in a rule to set the global average expression to my local ${{average}}. Is that the correct way?

            1 Reply Last reply
            0
            • toggledbitsT Offline
              toggledbitsT Offline
              toggledbits
              wrote on last edited by
              #6

              You refer to global variables the same way you refer to local ones, as you would in most computer languages.

              Author of Multi-system Reactor and Reactor, DelayLight, Switchboard, and about a dozen other plugins that run on Vera and openLuup.

              1 Reply Last reply
              0
              • toggledbitsT Offline
                toggledbitsT Offline
                toggledbits
                wrote on last edited by toggledbits
                #7

                You refer to global variables the same way you refer to local ones, as you would in most computer languages. You simply refer to it by name. If the name is not in local scope, the parent scope (which is the global scope in Reactor) will be searched for the name.

                Ref: https://reactor.toggledbits.com/docs/Expressions-%26-Variables/

                Author of Multi-system Reactor and Reactor, DelayLight, Switchboard, and about a dozen other plugins that run on Vera and openLuup.

                1 Reply Last reply
                0
                • M Offline
                  M Offline
                  maddios
                  wrote on last edited by
                  #8

                  Thanks, that worked for my needs. So far I like this new system, seems much snappier.

                  1 Reply Last reply
                  0
                  • M Offline
                    M Offline
                    maddios
                    wrote on last edited by
                    #9

                    Not sure if anyone's suggested this, but it would be great if the expressions could be grouped. Like for me I have tons of variables for my thermostats, tracking all sorts of house parameters which all of the thermostats share. Would be great to have an object to contain them all so I don't have all of the expressions mixed up. something like thermostat.first_floor.heat_current_setpoint would be really cool.

                    1 Reply Last reply
                    0
                    • toggledbitsT toggledbits locked this topic on
                    Reply
                    • Reply as topic
                    Log in to reply
                    • Oldest to Newest
                    • Newest to Oldest
                    • Most Votes


                    Recent Topics

                    • Caution: zwave-js-ui docker 11.4.0 is broken
                      toggledbitsT
                      toggledbits
                      0
                      2
                      33

                    • [Reactor] Variables not updating correctly in latest-25201-2aa18550
                      toggledbitsT
                      toggledbits
                      0
                      68
                      4.9k

                    • Shelly Wall Display XL
                      therealdbT
                      therealdb
                      2
                      6
                      94

                    • Handling Dead Entities and Renamed Entities
                      PablaP
                      Pabla
                      0
                      5
                      85

                    • Strange behavior for MQTT templates using payload and attributes
                      toggledbitsT
                      toggledbits
                      0
                      6
                      135

                    • [MSR] reactor-mqtt-contrib package for additional MQTT templates
                      therealdbT
                      therealdb
                      1
                      46
                      8.3k

                    • HA 2025.9.4 Supported Yet?
                      toggledbitsT
                      toggledbits
                      0
                      2
                      90

                    • The reaction stopped working (Google Nest max playing a video)
                      toggledbitsT
                      toggledbits
                      0
                      7
                      359

                    • Rule Set UI bug - RESOLVED
                      toggledbitsT
                      toggledbits
                      1
                      2
                      234

                    • [Reactor] Copy&Paste of Rules
                      therealdbT
                      therealdb
                      0
                      1
                      301

                    • [Reactor] Help with screne controller cycling logic
                      toggledbitsT
                      toggledbits
                      0
                      5
                      404

                    • Stop the MSR by an external switch on Hubitat.
                      Tom_DT
                      Tom_D
                      0
                      6
                      740
                    Powered by NodeBB | Contributors
                    Hosted freely by 10RUPTiV - Solutions Technologiques | Contact us
                    • Login

                    • Don't have an account? Register

                    • Login or register to search.
                    • First post
                      Last post
                    0
                    • Categories
                    • Recent
                    • Tags
                    • Popular
                    • Unsolved