In a Tempo Task, I am displaying a grid with 14 columns. One of the column will

Manikandan Ganapathy over 9 years ago

In a Tempo Task, I am displaying a grid with 14 columns. One of the column will provide a link to a document for the user, which is optional. If the process instance(a row) has a record in it, then the link should be shown otherwise it shud not. How to achieve this functionality? I am trying the below code, but ending up with the error."Interface Definition: Expression evaluation error at function a!gridField [line 33]: Type Validation: null"

a!gridTextColumn(
label: local!datasubset.columns[11].label,
field: local!datasubset.columns[11].field,
data: if(
local!datasubset.totalCount=0,
{},
local!datasubset.data[11].cells.value
),
links:
if(rule!APN_isBlank(local!datasubset.data[11].cells.value),{},
apply(a!documentDownloadLink(document: _,label: _),
merge(
local!datasubset.data[16].cells.value,
local!datasubse...

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0 Manikandan Ganapathy over 9 years ago

...t.data[11].cells.value
)
)
),
alignment: local!datasubset.columns[11].alignment
),

Please suggest. I am displaying a label in Column 11 and retrieving the doc id from column 16.
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0 Navajith K over 9 years ago

instead of "a!documentDownloadLink", could you please try to use "a!recordLink"
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0 Manikandan Ganapathy over 9 years ago

Hi no.no...it is not a record. what i mentioned as record is a single row instance...i need to check if there is a document value then display the column data with the link . or else just return a blank value. I need to know how to check the whether the value is null in each and every cells of a datasubset.
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0 Manikandan Ganapathy over 9 years ago

Any suggestions please?
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0 sagarl511
A Score Level 2
over 9 years ago

Create a rule called : createDocumentDownLoadLink with definition :
=if(or(isnull(ri!documentId),isnull(ri!label)),{},a!documentDownloadLink(ri!documentId,ri!label))

Then use apply(rule!createDocumentDownLoadLink,merge(local!datasubset.data[16].cells.value,local!datasubset.data[11].cells.value)).

This will return download link only if document id or label is not null. Please modify as per your need
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0 Manikandan Ganapathy over 9 years ago

Thanks..But when i try this i get the below erro

nterface Definition: Expression evaluation error at function a!gridField [line 33]: Type Validation: [Lcom.appiancorp.core.data.Variant; cannot be cast to com.appiancorp.core.data.Record
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0 Manikandan Ganapathy over 9 years ago

Any suggestions please?
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