Angular validation for only 1 input field inside a form - angularjs

Question

I'm building a form using Angular 1.1.1 and Ionic.
There are many "wallets" and the user needs to send a new "value" to each of the wallet. My form has a validation for all fields which works fine when the 'submit' button for the form is pressed.
However, I also have a button next to each wallet to send only value to this wallet (not different values to all wallets). When I press it, all the validation errors appear, but I need error to be visible only for the particular wallet.
My form (index.html):
<form name="myForm" ng-submit="sendValues(wallets)" ng-controller="valuesCtrl" novalidate>
<div class="row" ng-repeat="wallet in wallets">
<div class="col item item-input-inset">
<label class="item-input-wrapper item-text-wrap">
<input name="wallet_{{wallet.id}}" type="number" ng-model="wallet.value" type="text" required/>
</label>
<span ng-show="myForm.wallet_{{wallet.id}}.$error.required">!!!</span>
</div>
<div class="col item">{{ wallet.previous }}</div>
<button ng-click="sendValue(wallet)">
<i class="ion-android-send"></i>
</button>
<span class=ng-show="myForm.$submitted==true && myForm.wallet_{{wallet.id}}.$error.required">Required</span>
</div>
<button class="button" type="submit">Submit</button>
</form>
My controller (values.js):
'Use Strict';
angular.module('App')
.controller('valuesCtrl', function($scope, $localStorage, UserService, $state) {
$scope.sendValues = function(wallets){
if ($scope.myForm.$valid) {
...
} else {
$scope.myForm.submitted = true;
}
},
$scope.sendValue = function(wallet){
if (wallet.value == null) {
$scope.myForm.submitted = true;
} else {
...
}
}
})

Answer 1

You need to create a form for each wallet

Answer 2

This is due to your html name attributes has same value inside ng-repeat
Use $index in your name field for differentiate all the name attribute.
<form name="myForm" ng-submit="sendValues(wallets)" ng-controller="valuesCtrl" novalidate>
<div class="row" ng-repeat="wallet in wallets">
<div class="col item item-input-inset">
<label class="item-input-wrapper item-text-wrap">
<input name="wallet_{{$index}}" type="number" ng-model="wallet.value" type="text" required/>
</label>
<span ng-show="myForm.wallet_{{wallet.id}}.$error.required">!!!</span>
</div>
<div class="col item">{{ wallet.previous }}</div>
<button ng-click="sendValue(wallet)">
<i class="ion-android-send"></i>
</button>
<span class=ng-show="myForm.$submitted==true && myForm.wallet_{{$index}}.$error.required">Required</span>
</div>
<button class="button" type="submit">Submit</button>
</form>

Answer 3

You have to create a form inside form again. But as per HTML standard you can not have nested form. But angular provided that ability to have nested form but the inner form should be ng-form. Which mean you are going to wrap form & inside that you can find multiple ng-form's.
So you should have ng-form="innerForm" which will keep track of each repeated form.
Other thing which I observed is, you did mistake while using ng-show(you had {{}} inside ng-show expression, which would not work). To fix it you could access object via its key like ng-show="innerForm['wallet_'+wallet.id].$error.required"
Markup
<form name="myForm" ng-submit="sendValues(wallets)" ng-controller="valuesCtrl" novalidate>
<div ng-form="innerForm" class="row" ng-repeat="wallet in wallets">
<div class="col item item-input-inset">
<label class="item-input-wrapper item-text-wrap">
<input name="wallet_{{wallet.id}}" type="number" ng-model="wallet.value" type="text" required/>
</label>
<span ng-show="innerForm['wallet_'+wallet.id].$error.required">!!!</span>
</div>
<div class="col item">{{ wallet.previous }}</div>
<button ng-click="sendValue(wallet)">
<i class="ion-android-send"></i>
</button>
<span class=ng-show="innerForm.$submitted==true && innerForm['wallet_'+wallet.id].$error.required">Required</span>
</div>
<button class="button" type="submit">Submit</button>
</form>