I'm currently trying to build a AngularJS app with a complex data structure.
The data source is an array of people with languages and skill level. I need to filter those people by language skill, to do so I tried to build a select with the languages and another select with the skill levels, but i failed.
Maybe there is also a simpler/better way to structure the data array ($scope.people)
Take a look at this
Html
<div ng-app='myApp' ng-controller="MainCtrl">LANGUAGES:
<select ng-model="selectLang" ng-options="lang as lang for lang in languages"></select>
<br>SKILL:
<select ng-model="selectSkill" ng-options="skill as skill for skill in skills"></select>
<br>
<button ng-click="getPeople()">Submit</button>
<br>PEOPLE:
<select ng-model="selectPeoples" ng-options="people as people for people in peoples"></select>
</div>
script
var app = angular.module('myApp', []);
app.controller('MainCtrl', function ($scope) {
$scope.people = [{
"name": "Jane Doe",
"gender": "Female",
"languages": [{
"lang": "German",
"skill": "Good"
}, {
"lang": "English",
"skill": "Very Good"
}]
}, {
"name": "John Doe",
"gender": "Male",
"languages": [{
"lang": "French",
"skill": "Good"
}, {
"lang": "English",
"skill": "Very Good"
}]
}];
$scope.languages = [];
$scope.skills = [];
angular.forEach($scope.people, function (peopleValue, peopleKey) {
angular.forEach(peopleValue.languages, function (langValue, langKey) {
$scope.languages.push(langValue.lang);
$scope.skills.push(langValue.skill);
});
});
$scope.languages = _.uniq($scope.languages);
$scope.skills = _.uniq($scope.skills);
$scope.getPeople = function () {
$scope.peoples = [];
angular.forEach($scope.people, function (peopleValue, peopleKey) {
angular.forEach(peopleValue.languages, function (langValue, langKey) {
if (langValue.lang === $scope.selectLang && langValue.skill === $scope.selectSkill) {
$scope.peoples.push(peopleValue.name);
}
});
});
}
});
Your problem is that you're not actually looping through each person's languages array in your ng-options directive. And I don't believe such a thing is actually possible given how your data is structured. I don't think you can loop through nested arrays (or at least I'm not aware of any ng-options syntax that would allow for such a thing.
So to make things easier, I would suggest doing the following in your controller:
$scope.langs = [];
angular.forEach($scope.people, function(person){
angular.forEach(person.languages, function(lang){
$scope.langs.push({
lang: lang.lang,
skill: lang.skill,
name: person.name,
gender: person.gender
});
});
});
This will give you an array that will allow you to filter using ng-options with the `orderBy' filter.
