Angular only putting attribute of ng-minlength if parsed value is not nil

Question

I want to only set my attribute of ng-minlength when the value I parse from data.Validation['minlength'] is not nil.

First I attempted using ng-switch; I had no problem doing this when handling ng-show=true/false. However I was unable to get it working when it was beyond just the value but also the whole declaration of ng-minlength="...". Second attempt was using ng-if but again I was unable to get it working in the "middle" of the input.

Below is some code that works - I want the whole ng-minlength="data.Validation['minlength']" to only be set if the value is not nil.

<input type="text" name="foo" ng-model="item.foo" 
ng-minlength="data.Validation['minlength']" required/>

score 1 · Accepted Answer · edited May 23 '17 at 12:20

1

I discovered a simpler approach in another question of mine.

Solution by Karaxuna here.

<input type="text" name="foo" ng-minlength="myvar || 0" required/>

edited May 23 '17 at 12:20

Community

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answered Jul 08 '14 at 19:30

Nicklas Kevin Frank

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score 0 · Answer 2 · answered Jul 07 '14 at 09:38

0

You can try ng-switch-on

 <span ng-switch on="data.Validation>
    <input ng-switch-when="null" type="text" name="foo" ng-model="item.foo" ng-minlength="data.Validation['minlength']" required/>
    <input ng-switch-default type="text" name="foo" ng-model="item.foo" required/>
</span>

It will create input depending on data.Validation values

However I am not sure if it will work with NULL values. It is still a good way forward.

answered Jul 07 '14 at 09:38

Michał Lach

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Yeah thanks, I was hoping I could avoid using ng-switch-on, since I have 3-5 different validation points that all could be null. – Nicklas Kevin Frank Jul 07 '14 at 09:58
You still create custom directive that will add ng-min attribute based on value that you pass. – Michał Lach Jul 07 '14 at 10:11

Angular only putting attribute of ng-minlength if parsed value is not nil

2 Answers2