Logic - do not display if value is empty

RE: Logic - do not display if value is empty

Mike Schmitt — Wed, 12 Jun 2024 19:03:33 GMT

[quote userid="261749" url="~/discussions/f/user-interface/35214/logic---do-not-display-if-value-is-empty/136803"]I'm still a N00b at writing expressions, but I'm learning the ways of SAIL.[/quote]

been there - it's rewarding once you can get your head around the seemingly weird structure required.

RE: Logic - do not display if value is empty

Scott Fleming — Wed, 12 Jun 2024 17:48:21 GMT

Thank you for your assistance! I'm still a N00b at writing expressions, but I'm learning the ways of SAIL.

RE: Logic - do not display if value is empty

Mike Schmitt — Wed, 12 Jun 2024 16:13:37 GMT

cool - appreciate any "verify answer"s you are available to dish out too, lol. also make sure you don't miss my last reply in the thread above, i gave you a final implementation to try out in your case (plus or minus adjusting certain names etc).

RE: Logic - do not display if value is empty

Yogi Patel — Wed, 12 Jun 2024 16:02:19 GMT

OK. Thanks for the suggestion.👍🏻

RE: Logic - do not display if value is empty

Mike Schmitt — Wed, 12 Jun 2024 15:44:47 GMT

Given that, you would re-write your original column value to something more like this, assuming we call the above expression rule "rule!GLBL_parseEmail()" for example:

a!richTextDisplayField(
  value: a!localVariables(
    local!emailMap: rule!GLBL_parseEmail(emailString: fv!row['recordType!POC etc']),
    {
      a!richTextItem(
        showWhen: a!isNotNullOrEmpty(local!emailMap.email),
        text: {
          a!richTextIcon(
            icon: "envelope-o"
          ),
          local!emailMap.name
        },
        link: a!safeLink(
          uri: "mailto://" & local!emailMap.email
        ),
        linkStyle: "STANDALONE"
      ),
      
      a!richTextItem(
        showWhen: a!isNullOrEmpty(local!emailMap.email),
        text: "(none)",
        size: "SMALL",
        style: "EMPHASIS",
        color: "SECONDARY"
      )
    }
  )
)

RE: Logic - do not display if value is empty

Scott Fleming — Wed, 12 Jun 2024 15:44:28 GMT

Great advice. I will create the rule and call it instead. I agree, I don't like all this business happening at the rendering level.

RE: Logic - do not display if value is empty

Mike Schmitt — Wed, 12 Jun 2024 15:39:10 GMT

Here's an expression rule I just whipped up that will extract the name and email, presuming the formatting is exactly on-spec and no funny business has happened with special characters. Note that extract() returns an array, so we have to take care to cast that as a singular result (my favorite way is just to take the first index() of the result).

a!localVariables(
  local!name: index(extract(
    "--beginning--" & ri!emailString,
    "ng--",
    " <"
  ), 1, null()),
  
  local!email: index(extract(
    ri!emailString,
    "<",
    ">"
  ), 1, null()),
  
  
  a!map(
    name: local!name,
    email: local!email
  )
)

RE: Logic - do not display if value is empty

Mike Schmitt — Wed, 12 Jun 2024 15:29:02 GMT

You really, really, really ought to consider moving this parser to its own expression rule. Trying to have this code hard-coded into a grid like this just makes stuff un-readable, and then of course when you get little errors like this it's also very hard to test.

RE: Logic - do not display if value is empty

Stefan Helzle — Wed, 12 Jun 2024 15:28:18 GMT

No answer to your question, but instead of constantly parsing this weird email address format when using it, I suggest to do that once when storing it to the database.

RE: Logic - do not display if value is empty

Mike Schmitt — Wed, 12 Jun 2024 15:27:47 GMT

I would suggest putting the showWhen condition in the RichTextItem object actually - the richTextDisplayField still needs to show up (afaik) so the column has some content, even if it's blank. additionally my normal trick here would be to add one extra RichTextItem to the displayField's array, set to show ONLY when the email is blank, in which case i show like "(none)" using nice richText formatting also.

RE: Logic - do not display if value is empty

Yogi Patel — Wed, 12 Jun 2024 15:13:59 GMT

Add showhen condition in a!richTextDisplayField.

a!richTextDisplayField(
  value: {
    a!richTextItem(
    )
  },
  showWhen: a!isNotNullOrEmpty(fv!row['recordType!technicalPointOfContact'])
)

RE: Logic - do not display if value is empty

David Jimenez — Wed, 12 Jun 2024 14:54:58 GMT

From "extract" the rule is wrong...and that makes the compiler throws the Syntax error

What do you want to do with that instruction?