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a!doesGroupExist() Function

Function

a!doesGroupExist( groupId )

Verifies whether a group with the specified group ID already exists in the environment.

Parameters

Keyword Type Description

groupId

Number (Integer)

The ID of the group to be checked.

Returns

Boolean

Usage considerations

Returns true when the specified group exists on the system, regardless of security.

This function is particularly useful to add error handling around group IDs that have been stored and then retrieved from a database.

a!doesGroupExist() cannot be used to define a column of process report data or in a process event.

Examples

You can copy and paste these examples into the Expression Rule Designer to see how this works.

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a!doesGroupExist(6)

Returns true if there is a group with an ID of 6/

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a!doesGroupExist(null)

Returns false

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if(a!doesGroupExist(ri!myGroup),
  group(ri!myGroup, "groupName"),
  "Unavailable"
)
  1. Create a rule input named myGroup of type Group.
  2. In the Expression box of the Test Inputs, enter an integer to represent a group ID.
  3. Click TEST RULE.

Returns either a group name or "Unavailable".

Looping through multiple inputs

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a!localVariables(
  local!groupIds: {2,3,30000},
  a!doesGroupExist(local!groupIds)
)

Returns {true, true, false}. This example may return different values depending on the groups in the environment.

Feature compatibility

The table below lists this function's compatibility with various features in Appian.
Feature Compatibility Note
Portals Partially compatible

Can be used with Appian Portals if it is connected using an integration and web API.

Offline Mobile Compatible
Sync-Time Custom Record Fields Incompatible
Real-Time Custom Record Fields Incompatible

Custom record fields that evaluate in real time must be configured using one or more Custom Field functions.

Process Reports Incompatible

Cannot be used to configure a process report.

Process Events Incompatible

Cannot be used to configure a process event node, such as a start event or timer event.

Open in Github Built: Mon, Apr 22, 2024 (07:49:58 PM)

a!doesGroupExist() Function

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