CODEWITHSUNDEEP
swiftcore-databindingxcode6nspopupbutton
buzo
buzo

Reputation: 81

Binding NSPopUpButton to core data hangs Xcode build

My environment:

My Project:

A bit of background: I got an NSTableView with multiple columns all hooked into an NSArrayController, which in turn, is hooked up to core data (say entity "Car"). Everything works well - I can load and edit the column values, and save changes to sqlite. All of this is accomplished with bindings via Interface Builder. I now want to add a new "color" column to this table, representing a relationship to another entity, say entity "Color". Each row will have an NSPopUpButton for this new column; the pop-up button should have its values populated from a second NSArrayController linked to the "Color" entity. Thus, "color" is a many-to-one relationship between Car and Color (many Cars can reference a given Color), and I'd like the values in the pop-up button to correspond to the "name" property from Color.

What I've done:

At this point, everything builds and runs properly, except that all the columns in the table show the "Item 1" default value from the pop-up button (I can also see the other default values when I expand the pop-up).

Now, I've tried the following in a futile attempt to load the pop-up with the correct values:

Strategy 1:

using Interface Builder, selected the NSPopUpButton. Under Bindings Inspector (Value Selection), checked "Bind to" and specified the Colors Array Controller from above; Controller Key -> arrangedObjects; Model Key Path -> name

Strategy 2:

For both of the strategies above, whenever I try to run (or just build) the project, Xcode hangs at "Compiling 1 of 1 Storyboard files". Activity Monitor shows that the "ibtoold" process steadily consumes all memory available (as soon as I kill it, Xcode reports my build as failed).

I would really appreciate if somebody could shed some light into what I'm doing wrong, or suggest alternatives to achieve the desired results.

Upvotes: 2

Views: 617

Answers (1)

Lars Blumberg
Lars Blumberg

Reputation: 21361

I just ran into the same issue: As soon as I bind a NSPopupButton's content binding to an ArrayController's arrangedObjects Xcode will compile the storyboard forever. When I remove the binding it will compile as usual :(

Since my NSPopupButton is inside a table column, I've removed the array controller and I'm now binding its content directly to a property of the table column's object value.

Upvotes: 2

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