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Hi all,
I want to get fields in a CDT based on their numerical index, i.e. if I have a CDT like:
{'type!{urn:com:appian:types:TEST}TEST_Employee'('firstName': "Frank", 'secondName': "Smith", 'age': 29)}
To get the first field, is there a way to index it by number? Something like index(local!testCdt, 1, null) would return "Frank".
Thanks for your help!
Discussion posts and replies are publicly visible
Is there a specific reason to do that? While the order is typically fix, I would definitely not rely on it.
We have a list of attribute sections that a user can click through, and I need to keep track of which sections have been opened for editing. I've created a CDT that contains the list of attribute sections as the keys and booleans as the values, but I can't make the field names match the attribute section names exactly (one of them has a special character) and I can't make the field names the attribute index because Appian doesn't allow numerical values as field names.
What I was planning to do was to get the attribute section index, and use that to index the CDT to fetch the corresponding value.
So for example:
Attribute sections indexes and names that a user sees:
1. Name
2. Age & Address
3. Occupation
CDT structure:
'type!{urn:com:appian:types:TEST}TEST_isSectionOpenForEditing'(name: 1,ageAndAddress: 0,
occupation: 1 )
If the user clicks the second attribute section, Age & Address, I want to fetch the corresponding value from the CDT to verify whether that section is open for editing.
Let me know if that makes sense.
Why not store this in a key-value fashion? Then you can store the section technical names in constants and easily refer to them in UI and in the key-value store.
How would I keep this persisted in a key-value fashion? That's why I created the CDT, so I could have it in a key-value fashion and persist the data as a process variable in the relevant process model.
Hm ... do you need to persist this data to DB? If not, why even using a CDT where a map would do it?
You could go with
{ a!map(section: "NAME", open: true), a!map(section: "AGE", open: false), . . . }
To find the value, use displayvalue like this
displayvalue(cons!SECTION_NAME, local!status.name, local!status.open, false)
We might end up persisting it in the DB, but for now I was just using the CDT for the key value structure and so the data can be persisted as a process variable.
I guess if I take your approach I can store it as type "Map" in the process model, right?
If you plan to persist this, go with a CDT and add a primary key field.
But you can also store the list of maps in a PV and transform it into CDT later on.