Custom attributes defined for project

[laura.c]

Hi,

 

I try to define a custom attribute on Project. It should be Expression type and return Text. It should be a substring of project Code, but when trying to access {self.name}, I get "Expression could not be parsed".  Is this attribute (name) not available for projects?

 

I would like to convert python expression "prj-"+"-".join(project.get("name").split("-")[1:]) into an expression for a custom attribute. Is it possible?

 

Thanks.

Laura

 

 

 

[Mattias Seebergs]

Hi Laura,

 

The expression attribute type is not available on projects at present. I've added a ticket on making that more clear in that dialog.

 

If you want to add an expression type attribute to another level, the corresponding expression would be:

prj-{func.substring(Project.fullname, func.locate('-', Project.fullname)+1)}

Mattias

[laura.c]

Thanks Mattias.

 

 

If I want to use the result in my scripts. how do I get it?

 

I tried:

myShot.get(customAttributeName) 

but it returns the expression itself, not the result.

 

Laura

[Mattias Seebergs]

That should return the result, and I just checked to be sure. I used the following:

import ftrackshot = ftrack.Shot('<shot id>')print shot.get('<custom attribute name>')

That prints my calculated value.

 

Please check your code and let me know if you still have problems.

 

Mattias

[laura.c]

Hi Mattias,

 

it works, thanks a lot.

 

What it's a bit annoying is,  that, once a custom attribute is defined as an expression assigned to an object (for eg shot), the user can't change the object anymore (for eg. to asset version). It needs to be redefined. Is there a reason for this behavior?

 

Also, it would be great to have more documentation for this topic.

 

Cheers,

Laura

[Mattias Seebergs]

There's no specific reason, it's just not implemented.

 

Any particular section you'd like to be covered? Have you noticed the help available by clicking the question mark in the Create attribute dialog?

 

Cheers

 

Mattias

[laura.c]

Thanks Mattias!