using Imposition SlugLine

[BetMason]

I need some help I am trying to print at the top of the 1st page of the ouput pdf.

using this rule in on job start
FusionPro.Composition.impositionSheetSlugText = "Store #"+ Field("store #");

I get this error with no information printing at the top of the page

uncaught exception: Error: In Field(), no data source defined or data could not be loaded

I am I missing a line of code?

[Dan Korn]

You're not in the context of a data record in OnJobStart. In other words, the Field function can be called only when a record is being composed, but in OnJobStart, you haven't started composing any records yet. (The OnJobStart rule is called before any data is processed, because you can change which records are composed there.)

More specifically, the slug line text is not meant to change from sheet to sheet. (It's not record-specific.) It's just a per-job setting, and using the FusionPro.Composition.impositionSheetSlugText property in OnJobStart merely overrides the per-job setting for the slug text specified in the FPI file (in FP Imposer).

You could always open up your data file (or another file) as an XDF, with "new ExternalDataFileEx", in the OnJobStart rule, and grab the store ID from there for your slug line.

If you really do want record-specific information to appear on the imposed sheet, you can set up a custom imposition background page, and any data fields you call out on text frames there will be from the first record composed on the sheet.

[BetMason]

I understand what you are saying

I only want to print the store number on the top of the 1st page

In the rules guide it says to put that code in the onjobstart and you can add variable which is what i did.

FusionPro's imposition system supports specifying the slug line in either the FP Imposer GUI or in the OnJobStart rule. When the slug line is defined in the OnJobStart rule, you’ll have the flexibility to not only use static text, but you can include variable data as well. For example,
FusionPro.Composition.impositionSheetSlugText = "Enter your slug text here.";
Please note that to turn on the slug line in the output file, you’ll need to select the Page Info checkbox in the Composition Settings dialog’s Imposition tab.

[Dan Korn]

Sorry, I can see how that documentation is misleading.

You can use variable data in the slug text, to an extent. You could have the rule insert, say, the current date, or a record range (FusionPro.Composition.startRecordNumber et al), or any other job setting (including one from FusionPro.Composition.JobOptions). But you can't use a field value from your primary data.

Also, the slug line appears on every imposed sheet, so you can't have it just appear on the first one.

A custom imposition background might be your best bet. You could have a text frame on it, and a rule that returns an empty string unless FusionPro.Composition.impositionSheetNumber == 1.

[BetMason]

You are amazing. Thank you so much!!

It worked