Using a Rule to set a *specific* repeating group's attribute

[Greg S]

Scenario: I have 2 repeating groups. One serves as a lookup table, the
other represents a table of new items.
ex.
lookups
products
@id
@name
@flagged (can be 0 or 1)

orders
order
orderItems
@qty
@productId
@special

Given that structure, I want a rule to fire so when a the @special attribute
is changed, I capture the @productId, then go back and find the matching
lookups/products/@id and set it to 1. Right now the generic rule can only
set all lookup/products/@flagged fields to 1. I tried manually editing the
xpath in the manifest.xsf to add a 'where clause' on the
xsf:assignmentAction targetField xpath as follows:
the generic rule:
../../lookups/products/@flagged
my change to manifest
../../lookups/products/[@id = current()/@productId]/@flagged

But I get an error when the rule fires that current() is an invalid
function.

As a test, I also used a hard-coded value
../../lookups/products/[@id = 7]/@flagged
and this worked fine.

Is there a solution to this?

 

[Franck Dauché]

Hi,

Have you try current()/../@productId?

Regards,

Franck Dauché

 

[Greg S]

I've tried
current()/../@productId
current()/@productId
and
current()../@productId

and I always get the same error:

Unknown method.
[@id = -->current()<--

Too bad there's not a way to break into the assignmentAction with the
debugger to interrogate xpath.

thanks for trying!

 

[Greg S]

Discovered workaround:

Again, here's the original structure sample:

lookups (repeating)
products
@id
@name
@flagged (can be 0 or 1)

orders (repeating)
order
orderItems
@qty
@productId
@special

Then I added a new node in my data tree:
temp (not repeating)
@newlyFlaggedProductId


Now I have a rule on /orders/order/orderItems/@special
Condition: when set to true
Set field /temp/@newlyFlaggedProductId = @productId

Then I added an OnAfterChange event on /temp/@newlyFlaggedProductId
When it's trigged with eventObj.Action = "Insert"
I manually (via code) update the single /lookups/products item since I can
explicitly control the xpath to point to @id = whatEverIdarnWellPlease.

To summarize, a user can flag a field which traps an event, to trigger a
rule, which changes a field, which raises an event, which I can capture in
code, and then update the single little field.

"There was an old lady who swallowed a dog, to eat the cat, to catch the
mouse, to get the spider, to eat the fly....." or however that song when.

It works fine, but it seem rather inelegant.

I've tried
current()/../@productId
current()/@productId
and
current()../@productId

and I always get the same error:

Unknown method.
[@id = -->current()<--

Too bad there's not a way to break into the assignmentAction with the
debugger to interrogate xpath.

thanks for trying!

Hi,

Have you try current()/../@productId?

Regards,

Franck Dauché


"Greg S" wrote: