Rename Master Spreads with Script

[KenWK]

I have a bunch of books in production for a series and I want to rename the master spreads in a bunch of files, but I can't see how to do it.

I know I can simply change the NamePrefix but when I try to change "Name" an error occurs, which makes sense given the object model shows that to be read only.

is there really no way to rename a master through a script?

Thank you,
Ken

[rob day · Accepted solution]

baseName should work

app.activeDocument.masterSpreads[0].baseName="myspread"

[KenWK]

Well, THAT'S embarrassing! Obviously I looked through the master spreads DOM with head firmly planted in posterior.

Thanks for helping to extract!
Ken

[Anthony Levings]

To expand on this a little bit, because I wasted a morning figuring it out, the name property is a composite of two parts the .baseName and the .namePrefix, so what you will see returned from

app.activeDocument.masterSpreads[0].name

is
app.activeDocument.masterSpreads[0].baseName and app.activeDocument.masterSpreads[0].namePrefix split by a hyphen.

The baseName and namePrefix are read/write, while name is read-only.