Passing List object as args to a runScript within an expression tag

General Discussion
1

Hi All,

I have a script definition that expects 2 arguments which are 2 lists.

  • def getGatewayStatus(listDatabaseNames, listDeviceNames):

When using script console, I can pass 2 lists to this definition and it provided a valid dataset return of all Gateway Status tags from System Tags.

I am trying to call this definition using an expression tag of data type dataset.
The expression keeps coming back with different errors. Using the following:

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image972×102 7.49 KB

Any suggestion or help on how to construct this runScript statement?

2

What are the errors?

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3

runScript("project.Gateway.status.getGatewayStatus",0,["databaseName1","databaseName2"],["deviceName1","deviceName2"])

OR
runScript('project.Gateway.status.getGatewayStatus',0,["databaseName1","databaseName2"],["deviceName1","deviceName2"])

will generate error:
"Syntax error on token: 'LEFT BRACKET' (line 1, char 55).

4

You can't construct lists as literals in expressions.
Depending on where you're executing this you can probably construct your lists as custom properties somewhere and bring them in as references.

1 Like
5

Instead of bringing back the result into a expression tag of type dataset, and then bind this tag to a table component, sounds like a better option is to run this script behind the scene and assign results directly to the data attribute of a Table component.

1 Like
6

You can with my latest Simulation Aids. See its asList() function.

4 Likes
7

You could also do something cheesy like make your script function accepts *args, then call the expression as runScript("script", 0, "arg1", "arg2", null, "arg3", "arg4") to separate the pairs of args.

Lots of ways to approach the problem - depends entirely on what you're comfortable with (and will be comfortable maintaining into the future).

1 Like