Predicate and Table View/Array Controller

AppleScript In Xcode
#1

I have a table view connected to an array controller with a “dataSource”.
If I add a “search field” and connect to the array controller the table view will show only the found data rows.
Now if I want to search for “non-textual” programatic things I can use a predicate and search the “dataSource” and find the matching rows.
Is there a easy way to make the table view behave like above.
Reason:
If I change something the changes are directly saved to the dataSource.

#2

The general idea is for your data to have a field that is suitable for searching in the first place. The search field can have multiple Predicates — when you have more than one, the Display Name is used.

#3

Thanks Shane.

Question was asked wrong.
I know that I can have multiple Predicate Bindings.
But they only work for textual search (at least for me).
For example:

set searchValList to {"", defGap, maxChars, maxPars, defCPS, minDur, maxDur}
set searchId to ((defaults's objectForKey:"searchId") as integer) + 1
if searchId > 1 then
	set searchString to (item searchId of {"", "gapFrames < ", "maxChars > ", "parCount > ", "theCPS > ", "durTime < ", "durTime > "} & item searchId of searchValList) as text
	tell current application's NSPredicate to set aPredicate to predicateWithFormat_(searchString)
	set theList to subsData's filteredArrayUsingPredicate:aPredicate
end if

What would be the way to update the table view and keep the connection to the dataSource.

#4

It sounds like you want to change the binding programmatically. That means using bind:toObject:withKeyPath:options: (and unbind:). Probably do-able in ASObjC, but it’ll probably take some figuring out.

#5

Thanks again Shane.
Seems to be a bit beyond my skills at the moment :slight_smile:

But is there an easy way to “swap” table view content and update the data source once changes are made?

#6

I’m not sure what you mean by using an array controller with a data source — it’s usually a case one or the other. But either way, you control the content.

You can apply a filter to an array controller programatically: just use setFilterPredicate:.

1 Like
#7

Many Thanks Shane,

I didn’t see your reply.
It solves my problem.
It would have saved me a lot of time if I would have seen the reply.

Again thanks.