Create a property that represents a list of things

Forum|Forum|8 years ago
January 30, 2018
2 replies
6626 views

Hello,

i'm creating a thing template and i want to add a property that represents a list(or an array of arbitrary length) of things all implementing a specific thing template, similar to the base type THINGNAME, but with multiple entries instead of one. How do i do that?

Design

S

smayer

1-Visitor

Hi Jovan

I'd suggest using an Infotable base type, this is the equivalent to an array in Thingworx.

J

jsladojevic

Author

1-Visitor

But infotables can only be based on data shapes and not on thing templates, so i have to create an extra data shape, that has a thingname implementing that template as a property. Is there no simplier solution?

S

smayer

1-Visitor

If you want to create a collection of elements of a defined type (this case ThingTemplateName) on a Thing, an Infotable with a defined data shape is the solution. If you find an alternative way please share.

D

drichter

1-Visitor

Instead of using a property for this, use the GetImplementingThings()-service of the template from which you want to know the implemented THINGNAMEs.

J

jsladojevic

Author

1-Visitor

well, i dont want all implemented things of this template.

For example:

I create a template called TyreSizes and a templatre called CarModel.

now i want each thing, that is a CarModel to have a property called possibleTyreSizes that tells me which TyreSizes-things are possible for this car Model.

D

drichter

1-Visitor

Ah ok, now I understand it.

I would suggest the solution of Sean Mayer. But if the TyreSizes only a array of numbers like 20, 25, 28, 30 and you don't want use Infotables, you can use JSON for the possibleTyreSizes property.

Sign up

Please use your PTC eSupport account.

Welcome to the PTC Community

Please use your PTC eSupport account.