default settings for ng-repeat?

[Eric Eslinger]

I use a lot of ng-repeats in my code. What I'd love to do is define somewhere at app initialization that, unless I specify otherwise: 'track by item.$id' is what I want to do, and that there should always be a filter:{_error:undefined} on the ng-repeat microsyntax as well.

I *could* probably just define my own local-repeat with transclusion that constructs the ng-repeat's transclusion. I may end up doing it that way instead, just because it's an enormous PITA to go through my code and make sure all the track by stuff is correct.

I haven't seen any documentation that would indicate this is possible on the ng-repeat directly, but I figured it's a common enough issue- drying up the microsyntax - and I might as well ask how other people are handling it.

e

[Sander Elias]

Hi Eric,

The simplest way is to write your own ngRepeat at an higher priority, and just amend it.

something like this:

    function ngRepeat($compile, $parse) {
        var ddo = {
            restrict: 'A',
            priority: 1010,
            terminal: true, //stop Compilation
            compile: compile
        };
        return ddo;

        function compile(el, attr) {
            attr.$set('ngRepeat', attr.ngRepeat + ' track by $index');
            var ngModelLink = $compile(el, null, 1010); //restart compilation at priority 9999 
            return function(scope) {
                ngModelLink(scope); // use the link function from the compilation
            };
        }
    }

See it in action in this plunk
Does that help a bit?

Regards
Sander

​

[Eric Eslinger]

Hey sander, 

That is pretty much perfect, thanks! This way I can do some string voodoo on the incoming ngRepeat attr to make sure there's the right setup, and I don't have to go and edit every single html template already in my code.

e

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