Succsss / Fail variable on custom field read and write items

[dreamingdigital]

I really wish there was a success / fail variable on the custom field read and write items.

Example:
<mvt:item name="customfields" param="Write_Customer_ID( l.settings:member:id, 'loyalty_tier_name', l.settings:loyalty_tier_name )" />

to

<mvt:item name="customfields" param="Write_Customer_ID( l.settings:member:id, 'loyalty_tier_name', l.settings:loyalty_tier_name, l.success )" />

or something... but you know what I mean

[Bruce - PhosphorMedia]

well, there's

<mvt:item name="customfields" param="Read_Customer_ID( l.settings:member:id, 'loyalty_tier_name', l.settings:loyalty_tier_name )" />

but yea, a boolean result value would be handy

[dreamingdigital]

yes. an actual Boolean result is what I'm asking for. Being able to read it doesn't mean it actually worked when writing in all scenarios, especially when getting data from external sources in the first place.

...anyways, I'm dreaming here right? This is the "dream features" forum.

[Bruce - PhosphorMedia]

yes. an actual Boolean result is what I'm asking for. Being able to read it doesn't mean it actually worked when writing in all scenarios, especially when getting data from external sources in the first place.

Ok, ran out of coffee this morning and awaiting backups...but how can doing a read not give you the definitive answer? I haven't tried it, but pretty sure if your input variable is empty, the Write() function would be 'True'...even though the field is empty. So, i suspect what you really want is maybe a tri-state return:

1 = True: Value Written
0 = False: Function failed. Most likely because the declared custom field was incorrect.
-1 = Value Written was null.

Although, since the 'false' case would only occur in development - unless someone deletes/changes the custom field, we could go back to boolean and the 0 represent "Null Value" written. Again, you can create your own test for this, but yea, having it in the function would streamline things.

[dreamingdigital]

yup, hence the "dream" feature. :)