Conditional sets using sequence

[Ali-Zmn]

I have a field which sets its value according to 3 other fields. Initially, it works fine, but after a couple of switches, it looses its functionality.
For example in this sandbox if Provider E in the first field is chosen, the some title field will generate with key 1 (expected behaviour) then if provider changes to Provider F field would regenerate to key 7 and key 8 (expected behaviour) BUT if provider switches back to Provider E the some title field won't act as expected and empty itself!

I'm wondering if I'm using the sequence wrong or missing something there

[rvsia]

Hello @Ali-Zmn,

the sequence condition works differently >> This special type of condition allows to trigger a sequence of multiple independent conditions. (...) Setters are executed independently. Read more here.

That means, all the conditions run at once in your code and because you have else statements there, some of unsuccessful condition sets the value of some title to an empty array.

I have removed all the else statements and now it looks working correctly when switching the provider: https://codesandbox.io/s/react-data-driven-sequence-reported-forked-5b2o45

Please take a look. (Maybe you would need to add one else: { visible: true } (but without the setter!) - to show the field, at least one condition in the sequence has to be true to show a field.)

[Ali-Zmn]

Thanks @rvsia , my only concern is:
When a user uses an option which is in the sequence, it would set the value correctly, but if the user changes it after, to any other option that is not in the sequence, the field would keep its value which I don't expect it and I want to clear it. one approach can be creating another sequence to act in the opposite way of other sequences and empty the field but is there any other approach?

[rvsia]

You could just add a negated condition (for example using not see here) to set the value to empty, if the option not in sequence is selected.

schematic code:

sequence:
   if a = 1 then x = 1;
   if a = 2 then x = 2;
   if a = 3 then x = 3;
   not: [
            if a = 1;
            if a = 2;
            if a = 3;
         ]
         then x = empty

example (when field1 or field2 is not x, then "clear this"):

condition: {
  not: {
    or: [
      { when: "field1", is: "x" },
      { when: "field2", is: "x" }
    ]
  },
  then: { set: { field3: "clear this" } },
}

Or using notMatch

condition: {
  or: [
    { when: "field1", is: "x", notMatch: true },
    { when: "field2", is: "x", notMatch: true }
  ],
  then: { set: { field3: "clear this" } }
}

[Ali-Zmn]

Thanks, it worked as expected!

[rvsia]

Glad to hear it!