Fantastic solution Josh..Thank you.
On Friday, April 5, 2013 12:41:14 AM UTC+5:30, Josh David Miller wrote:
>
> Hello!
>
> Order of execution is the important part here, roughly: compiler ->
> controller -> link -> interpolation. Until the interpolation is done, there
> is no value for '@'. That's why your checks didn't work.
>
> That said, while there is no default mechanism for this, you can set up an
> $observe on interpolated attributes; the $observe will always fire the
> first time, even if there was no value passed. You can use this to set your
> default. $observe is very efficient.
>
> attrs.$observe( 'attr1', function(val) {
> if ( !angular.isDefined( val ) ) {
> scope.attr1 = 'defaultValue';
> }
> });
>
> It would be nice to have a mechanism for setting defaults for '@', but it
> would be syntactically awkward considering defaults don't make sense for
> '=' and '&'.
>
> Josh
>
>
> On Thu, Apr 4, 2013 at 11:43 AM, Charles Kilbourne <[email protected]
> <javascript:>> wrote:
>
>> Hey guys,
>>
>> Its all in the title, here is an example of what I mean
>>
>> This would be the isolate scope set in the directive
>> scope:{
>> attr1:'@',
>> attr2:'@'
>> }
>>
>> Now if someone wanted to use the directive they could do this
>>
>> <div my-directive attr1="someValue" attr2="otherValue"></div>
>>
>> however the user should have the option to leave out attributes and if so
>> the controller would be able to detect this and fall back to a default
>> value, I have tried checking if the variable is undefined but that does not
>> work. Does anyone know of a way to get this done?
>>
>> Thanks in advance
>>
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>>
>
>
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