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vuejs2 with select option get the value and other attribute

I'm using vuejs.
Let's say I have select and inside I have multiple options
like this:
<select v-model='line.unit' name='unit[]' required #change='change_unit($event)'>
<option v-for='(unit) in line.units' price='line.price' :value='unit.id'>#{{unit['get_unit_id']['name']}}</option>
<option selected class='selected' price='line.price' v-if='line.smallest_unit' :value='line.smallest_unit.id'>#{{line.smallest_unit['name']}}</option>
</select>
And this is the change_unit method:
change_unit:function($event)
{
}
How can I access the attribute price if I want the value of the selected option? I can get it like this ..
console.log(event.target.value);
But now can I access the price value attribute?

you could tweak the option value binding it to Vue.js
as you can see in this fiddle, which I'll explain here
Consider this HTML
<div id="app">
<select v-model="line.unit" name='unit[]' required>
<option v-for='(unit) in line.units' :value="unit">
{{unit.name}}
</option>
</select>
<h2 v-if="line.unit">
{{line.unit.price}}
</h2>
</div>
As you can see, I'm setting the <option> value binding it to unit, which is each single line.units item object. by doing that, selecting an option will actually set the v-model to unit, instead of an object's attribute
Consider this JS, in which I've created a hypotetic reproduction of your .data.
new Vue({
el: '#app',
data() {
return {
line: {
unit: {},
units: [{
id: 1,
price: 100,
name: 'foo'
},{
id: 2,
price: 200,
name: 'bar'
}]
}
}
}
})
Selecting an option will now show you it's price (I've put a <h2> as a demonstration)

AngularJS Select | After selecting an id from a JSON show the rest of the information of that id

I have a JSON saved that has plenty information:
I am able to fill a select menu with all the names of each element inside the JSON this way:
<select ng-model="car.marca" ng-options="item.brakeId as item.name for item in fillBreaks" class="form-control cforms" required>
<option value="" disabled selected>Sleccionar Marca</option>
</select>
Getting this as result: a select menu filled with the names:
I am able to get the BreakId of the selected element, in this case is saved in 'car.marca' using ng-model.
ng-model="car.marca"
My question is, Based on the selected element lets say 'BrakeId: 9' how can I display the rest of the information of that selected id?
I want to display the price, description, stock, and so on.

You can get the selected object by doing a find on fillBreaks (should be fillBrakes?) for an object with a matching brakeId using ng-change like below. This will allow you to display the additional brake information while keeping car.marca true to holding just a brakeID.
var exampleApp = angular.module('exampleApp', []);
exampleApp.controller('ExampleController', ['$scope', function($scope) {
$scope.car = null;
$scope.fillBreaks = [
{ brakeId: 0, name: 'Brake A', description: 'Good brakes', price: 100, stock: 1 },
{ brakeId: 1, name: 'Brake B', description: 'Great brakes', price: 200, stock: 1 },
{ brakeId: 2, name: 'Brake C', description: 'The best brakes', price: 300, stock: 1 }
];
$scope.brakeInfo = null;
$scope.getBrakeInfo = function(brakeId) {
$scope.brakeInfo = $scope.fillBreaks.find(function(item){return item.brakeId == brakeId});
}
}]);
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="exampleApp" ng-controller="ExampleController">
<select ng-model="car.marca" ng-options="item.brakeId as item.name for item in fillBreaks" ng-change="getBrakeInfo(car.marca)" class="form-control cforms" required>
<option value="" disabled selected>Sleccionar Marca</option>
</select>
<p>{{ brakeInfo }}</p>
</div>

You can change your ng-options to grab the entire selected object, instead of just it's ID.
ng-options="item as item.name for item in ctrl.fillBreaks"
See this JSFiddle for example
P.S. A little trick to remove the Placeholder option from the dropdown is to add style="display: none;" to it, so that it can't be intentionally selected; also illustrated in the JSfiddle

Remove empty option value from angular js selectbox

I am using angular js for displaying dynamic option value in selectbox.
One issue i am facing is by default it is appending one empty option to the
select box. Below is the selectbox code.
<select class='flowprovetermin' ng-change='gradeReloadData()' data-ng-model="provetermin[0]">
{loop="$proveterminOptions"}
<option value="{$value['proevetermin']}">{$value['proevetermin']}</option>
{/loop}
</select>
Please any one let me know how to remove the default empty value.

Look into using ng-options to set the <select> options.
Example (HTML):
<select class='flowprovetermin'
ng-change='gradeReloadData()'
ng-model="mySelectedOption"
ng-options="myOptions">
</select>
Example (JS):
$scope.myOptions = [
{ id: "option1", name: "Option 1" },
{ id: "option2", name: "Option 2" },
{ id: "option3", name: "Option 3" }
];
Note:
It looks like you're assigning ng-model to an object in an array.
This object should probably be assigned to a variable.
ng-model on your <select> box is the selected option.

select - populate when editing post

I have my angularjs view in wich I must populate my select box with value saved in database, and to allow for other options to be selected. I have tryed like this:
<div class="form-group">
<label class="control-label" for="status">Status zaposlenika</label>
<div class="controls">
<select required name="status" class="form-control" ng-model="employee.status" ng-options="statusType.name for statusType in statusTypes" >
</select>
</div>
But my value is not populated in my view. ( {{employee.status}} - > "test" )
$scope.statusTypes = [
{
name: 'test'
},
{
name:'Test1'
},
{
name: 'Test2'
},
{
name:'Test3'
}
];
How can I do this ?
EDIT
My model employee.status is populated with value "test". But my select box is not. Othe values are listed as items for selection. How can I set default value that is saved in my database to be pre-selected in my select box.

Your model employee.name is a string and selectbox is bound to an object similar to {name: "Test1"}. So if you want to select option from statusTypes you have to find corresponding object in array of object.
$scope.statusTypes = [
{name: 'Test1'},
{name: 'Test2'},
{name: 'Test3'}
];
var selectedStatus = $scope.statusTypes.filter(function(type) {
return type.name = 'Test2';
})[0];
$scope.employee = {
status: selectedStatus
};
So you have to make employee.status to be one of the objects from statusTypes array.
Or other option is to continue to use string for employee.status and change ngOptions to bind to a string instead of object:
ng-options="statusType.name as statusType.name for statusType in statusTypes"

Angularjs show selected option from ng-repeat value

I have drop down inside ng-repeat as follows.
<div ng-model="list in lists">
<div>
<select ng-model="pType" ng-options="c.name in projType"></select>
<option value="{{list.value}"></option>
</div>
My Controller is
App.controller('pOverCtrl', function ($scope, pOverRepository, $location) {
$scope.lists = projOverRepository.query();
$scope.projType = [
{ value: '0', name: 'None Selected' },
{ value: '1', name: 'Construction' },
{ value: '2', name: 'Maintenance' },
];
})
The dropdown gets populated fine. But my goal is that when ng-repeat is executed it automatically shows the value that is coming from lists scope as selected.
Please let me know how to fix this issue.

use the diretive ng-selected
<div ng-model="list in lists">
<select ng-model="pType" ng-options="c.name in projType">
<option ng-selected="list.value == list.selected" value="{{list.value}"></option>
</select>
</div>
assuming that list.selected variable contains the value of the option selects

$scope.pType should have the selected value as it's bind by ng-model.
Read the docs here: http://docs.angularjs.org/api/ng/directive/select
And if you already have the selected value in $scope.lists, you can use the ngSelected directive.