Persistent data

[Jeff1776]

I have an array of objects that need to be persistent.  I have read that saving complex data can't be done as is but can be saved if in a string format.  Any help in this area will be greatly appreciated.  Also is there a special location to make this data persistent ie: global.setPersistent()?

[try67]

Yes, global.setPersistent(cVariable, bPersist). For example:

global.myText = "abc";

global.setPersistent("myText", true);

As for the array, that's true. You can only set string objects as persistent. You can use the toSource method to convert any object to a string, though, and then eval to convert it back to an object.

[Joel_Geraci · Accepted solution]

With Acrobat DC, you can use JSON.stringify() and JSON.parse() instead of toSource() and eval().

[try67]

I'm old-school...

[Joel_Geraci]

I store my complex data as strings... of JSON... which allows me to use a single string to store all kinds of stuff.

Also, there is a global object but with the default security settings, only the document that set the value can retrieve the value.

[Jeff1776]

Thanks!!  Where does the persistent data get saved (shitdows)?

[Joel_Geraci]

I use a folder level JavaScript and a PDF to save my persistent data into a form field in that PDF. It's stored as a JSON string that I parse into an object. The PDF gets opened as a hidden file and is disclosed so all other PDFs can get access to the object. It's stored in the same folder as the JavaScript.