I'm trying to implement an Angular version of an autocomplete textbox. I found some working examples, but none seem to exhibit the behavior I'm getting.
The autocomplete functionality itself works fine. When a suggested item is selected, the control correctly handles the selection. Subsequent uses of the control (typing in the autocomplete box, making a selection) fail to engage the 'selected' event/condition, although the autocomplete bit continues to work.
Here's my module & controller:
var app = angular.module('myapp', ['angucomplete-alt']); //add angucomplete-alt dependency in app
app.controller('AutoCompleteController', ['$scope', '$http', function ($scope, $http) {
//reset users
$scope.Users = [];
$scope.SelectedUser = null;
//get data from the database
$http({
method: 'GET',
url: '/UserRoleAdministration/Autocomplete'
}).then(function (data) {
$scope.Users = data.data;
}, function () {
alert('Error');
})
//to fire when selection made
$scope.SelectedUser = function (selected) {
if (selected) {
$scope.SelectedUser = selected.originalObject;
}
}
}]);
I'm guessing the problem is in there, but I don't know what it is. I include the bit from my view below, although there doesn't seem to be much there to fuss with:
<div class="form-group">
<div ng-app="myapp" ng-controller="AutoCompleteController">
<div angucomplete-alt id="txtAutocomplete" pause="0" selected-object="SelectedUser" local-data="Users" search-fields="RegularName" placeholder="People Search" title-field="RegularName" minlength="2" input-class="form-control" match-class="highlight"></div>
<!--display selected user-->
<br /><br />
<div class="panel panel-default" id="panelResults">
<div class="panel-heading"><h3 class="panel-title">Manage Roles for {{SelectedUser.RegularName}}</h3></div>
<div class="panel-body">
<div class="row">
<div class="col-md-2">
<img src="~/Images/avatar_blank.png" width="100%" />
</div>
<div class="col-md-4">
<div class="row">
<div class="col-md-4">Selected User:</div> <div class="col-md-6">{{SelectedUser.RegularName}}</div>
</div>
</div>
</div>
</div>
</div>
</div>
Any help would be appreciated!
UPDATE
After fixing the mistake Yaser pointed out, I wasn't getting any information regarding the selected object. So I set the page to output the entire object, rather than the specified fields, and I noticed I was getting information about the selected object, and on subsequent attempts as well.
So this worked: {{SelectedUser}}
This did not: {{SelectedUser.Department}}
Then I looked at the object and noticed its format. It had "title" and "description", and description had inside it the key/value pairs.
So now this works: {{SelectedUser.description.Department}}
And that's it.
Because the first time you are setting $scope.SelectedUser as a function but inside that you are rewriting the same one with an object. so next time it is not a function any more, try to rename the function:
$scope.setUser = function (selected) {
if (selected) {
$scope.SelectedUser = selected.originalObject;
}
}
Related
I have a cross platform app built using AngularJS, Monaca and OnsenUI.
I have a login view that checks if the user has logged in before by querying a SQLite database. Based on whether there is data in the database, I display a welcome message to the user OR I display the login text field.
I have a method that queries the SQLite database and this is working as intended. When a entry is found on the database I set a boolean value to display the welcome message - else the boolean displays the login text field.
On my view I do the following;
<!-- User not in DB -->
<div ng-if="showLoginUI">
<div class="input">
<input type="password" placeholder="User ID" ng-model="userID"/>
</div>
</div>
I watch for changes in the text field to save the user input, but no actions are registered in the example as above. This is my method to register user action on the text field.
$scope.$watch("userID", function (newVal, oldVal)
{
if (newVal !== oldVal) {
$scope.newUserID = newVal; // Not getting here
}
});
However, when I remove the ng-if from the example above - the user events are registered. How do I keep my ng-if while still registering events on the text-filed?
I tried adding a $timeout to my $watch function but this did not help either.
It happens because ngIf directive creates a child $scope.. the problem is that you're using ng-model without the Dot Rule or controller-as-syntax.
The whole problem was already explained by Pankaj Parkar in this question.
So, to make it work, you have to create a new object, ex:
$scope.model = {};
Then, build your ng-model like this:
ng-model="model.userID"
Take a look on this simple working demo:
angular.module('app', [])
.controller('mainCtrl', function($scope) {
$scope.model = {};
$scope.$watch("model.userID", function(newVal, oldVal) {
if (newVal !== oldVal) {
$scope.model.newUserID = newVal;
}
});
});
<html ng-app="app">
<head>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.5.7/angular.min.js"></script>
</head>
<body ng-controller="mainCtrl">
<button type="button" ng-click="showLoginUI = !showLoginUI">Hide/Show</button>
<div ng-if="showLoginUI">
<div class="input">
<input type="password" placeholder="User ID" ng-model="model.userID" />
</div>
</div>
<div ng-if="model.newUserID">
<hr>
<span ng-bind="'Working: ' + model.newUserID"></span>
</div>
</body>
</html>
I've got a project in which you write a note in a formulary. Then, you submit that note into an information container (now it's just an array for testing purposes, but it's intended to be a DB later).
The formulary has the following controller:
app.controller('controlFormulario', ['$scope', 'SubmitService', function($scope, submitService) {
$scope.formData = {
"titulo":"",
"texto":"",
"fecha": new Date()
};
$scope.submit = function() {
var temp = $scope.formData;
submitService.prepForBroadcast(temp);
}
// more things we don't need now
... which is bound to this part of the DOM, which is added into it, via a directive:
<form ng-controller="controlFormulario as formCtrl">
<div class="element">
<div class="form-group" ng-class="{'has-error': formData.titulo.length > 50 }">
<label for="inputTitulo">Título</label>
<input type="titulo" class="form-control" id="inputTitulo" ng-model="formData.titulo">
<span ng-show="formData.titulo.length > 50" id="helpBlock" class="help-block">El título no puede exceder los 50 caracteres.</span>
</div>
<div class="form-group">
<label for="inputTexto">Texto</label>
<textarea class="form-control" id="inputTexto" ng-model="formData.texto"></textarea>
</div>
<div class="form-group">
<label for="fecha">Fecha</label>
<input type="fecha" class="form-control" id="fecha" ng-model="formData.fecha" disabled>
</div>
<div class="form-group" >
<button class="btn btn-primary" style="height:35px;width:100px;float:right;" id="submit"
ng-disabled="isDisabled()" ng-click="submit()">
Enviar
</button>
</div>
</div>
<div class="note" ng-show="formData.titulo.length > 0">
<div class="title" ng-model="formData.titulo" class="title">{{formData.titulo | limitTo:50}}</div>
<div class="text" ng-model="formData.texto" class="text">{{formData.texto}}</div>
<div class="date" ng-model="formData.fecha" class="date">{{formData.fecha | date}}</div>
</div>
</form>
This is my directive (I don't think it's really needed, but just in case):
app.directive('formulario', [function() {
return {
restrict: 'E', // C: class, E: element, M: comments, A: attributes
templateUrl: 'modules/formulario.html',
};
}]);
I use a service for passing the data between the previous controller, and the note controller (which controls the note objects of the array). This is the service:
app.factory('SubmitService', function($rootScope) {
var data = {};
data.prepForBroadcast = function(recvData) {
data.data = recvData;
this.broadcastItem();
};
data.broadcastItem = function() {
$rootScope.$broadcast('handleBroadcast');
};
return data;
});
... and I receive it in this part of my note controller:
app.controller('noteController', ['$scope', 'SubmitService', function($scope, submitService) {
var nc = this;
$scope.$on('handleBroadcast', function() {
nc.pruebaNota.push(submitService.data);
$scope.formData.titulo = "";
$scope.formData.texto= "";
$scope.formData.fecha = new Date();
});
// more things, the array, etc...
Ok. This should work, and it does, but something strange happens: as you can see, the preview note is binded with ng-model to the form. That works great, ok. But when I submit the form, the new note object keeps bound to the form (so if I delete the form text, the note appears in blank, and if I write something, it gets automatically updated both in the preview note, and the new note), when there isn't any relation between them. The new note, which appears dynamically on the screen, shouldn't be bound to anything.
Am I doing something wrong? Some help would be really nice!
You are forgetting something really important. Memory address. So, the rought idea is something like: imagine that $scope.formData is in the address 123123. You first create a temp var pointing to 123123 then you send it to the service and the service holds the same address 123123 into data.data.
Then in your second controller you say: hey, I want to work with that data.data (AKA your data in 123123) you have SubmitService.
Now when you modify $scope.formData again, you are updating what you have in that 123123 and everything that is "looking" into that address will be updated.
That is the rough idea. To point it simple, you're modifying the same piece of information everywhere.
See it here: http://plnkr.co/edit/zcEDQLHFWxYg4D7FqlmP?p=preview
As a AWolf suggested, to fix this issue, you can use angular.copy like this:
nc.pruebaNota.push(angular.copy(submitService.data));
thanks advance for any support. So I have a factory that uses a post to get some data from a C# method. That all seems to be working as I can see the data in the console log when it gets returned. However, when I get the data, I can't seem to get it to display properly using ng-repeat.
I've tried a couple different ways of nesting ng-repeats and still no luck. So now I'm thinking I may have not passed the data from the call properly or my scope is off. I've also tried passing data.d to hangar.ships instead of just data. Still pretty new to angular so in any help to point me int he right direction is greatly appreciated.
app code:
var app = angular.module('shipSelection', ['ngRoute', 'ngResource']);
app.controller('ShipController', function ($scope, ShipService) {
var hangar = this;
hangar.ships = [];
var handleSuccess = function (data, status) {
hangar.ships = data;
console.log(hangar.ships);
};
ShipService.getShips().success(handleSuccess);
});
app.factory('ShipService', function ($http) {
return {
getShips: function () {
return $http({
url: '/ceresdynamics/loadout.aspx/getships',
method: "post",
data: {},
headers: { 'content-type': 'application/json' }
});
}
};
});
Markup:
<div class ="col-lg-12" ng-controller="ShipController as hangar" >
<div class =" row">
<div class="col-lg-4" ><input ng-model="query" type="text"placeholder="Filter by" autofocus> </div>
</div><br />
<div class="row">
<div ng-repeat="ship in hangar.ships | filter:query | orderBy:'name'">
<div class="col-lg-4">
<div class="panel panel-default">
<div>
<ul class="list-group">
<li class="list-group-item" >
<p><strong>ID:</strong> {{ ship.ShipID }} <strong>NAME:</strong> {{ ship.Name }}</p>
<img ng-src="{{ship.ImageFileName}}" width="100%" />
</li>
</ul>
</div>
</div><!--panel-->
</div> <!--ng-repeat-->
</div>
</div>
</div> <!--ng-controller-->
JSON returned from the post(From the console.log(hangar.ships):
Object
d: "[{"ShipID":"RDJ4312","Name":"Relentless","ImageFileName":"Ship2.png"},{"ShipID":"ZLH7754","Name":"Hercules","ImageFileName":"Ship3.png"},{"ShipID":"FER9423","Name":"Illiad","ImageFileName":"Ship4.png"}]"
__proto__: Object
As per AngularJS version 1.2, arrays are not unwrapped anymore (by default) from a Promise (see migration notes). I've seen it working still with Objects, but according to the documentation you should not rely on that either.
Please see this answer Angular.js not displaying array of objects retrieved from $http.get
What happens if you add JSON.parse(data);
If this works you should add some checks in and perhaps migrate that logic to the service. Or use $resource per the other answer.
https://github.com/angular/angular.js/commit/fa6e411da26824a5bae55f37ce7dbb859653276d
I'm opening a $modalInstance in which user has to choose an option from radio inputs (values loaded dynamically) and return chosen value.
I have this function to open the $modalInstance:
$scope.openAddFriendGroup = function () {
var addFriendGroupModal = $modal.open({
templateUrl: "addFriendGroupModal.html",
controller: ModalAddFriendGroupCtrl,
resolve: {
myDetails: function () {
return $scope.info;
}
}
});
};
Then this is the $modalInstance controller:
var ModalAddFriendGroupCtrl = function ($scope, $modalInstance, myDetails, groupsSvc) {
$scope.addableFriends = [];
$scope.chosenFriend = null;
//here goes a function to retrieve value of $scope.addableFriends upon $modalInstance load
$scope.addFriend = function () {
$scope.recording = true;
groupsSvc.addFriend($scope.chosenFriend, myDetails).then(function (response) {
if(response.status && response.status == 200) {
$modalInstance.close($scope.userid);
}
}, function (err) {
$modalInstance.dismiss(err);
});
};
};
And this is addFriendGroupModal.html, the HTML for the modal itself:
<div id="add-friend-group-modal">
<div class="modal-header">
<h3 class="modal-title">Add friend</h3>
</div>
<div class="modal-body">
<form class="form" role="form" ng-hide="loading">
<div class="form-group">
<label class="control-label">Friend:</label>
<div class="radio" ng-repeat="thisFriend in addableFriends">
<label>
<input type="radio" id="friend{{thisFriend.id}}" name="chosenFriend" ng-model="$parent.chosenFriend" ng-value="thisFriend" /> {{thisFriend.name}} {{thisFriend.surname}}
</label>
</div>
</div>
</form>
</div>
<div class="modal-footer">
<button class="btn btn-primary" ng-click="addFriend()">Add friend</button>
</div>
</div>
Now, the problem comes when I try to retrieve the value that has been selected in the radio buttons of the form in the modal. I can't seem to retrieve this value in $scope.addFriend. The value of $scope.chosenFriend stays at null and does not get updated when selecting a radio option.
What am I doing wrong?
$modal.open returns promise so try :
var addFriendGroupModal;
$modal.open({ ...})
.result.then(function(response){
addFriendGroupModal = response;
});
<input type="radio" id="friend{{thisFriend.id}}" name="chosenFriend" ng-model="$parent.chosenFriend" ng-value="thisFriend" /> {{thisFriend.name}} {{thisFriend.surname}}
in here your ng-model is $parent.chosenFriend so, why are you expecting $scope.chosenFriend to not be a null? change you ng-model property to $scope.chosenFriend.
Retrieved answer from a related question, by gertas
Angular-UI modals are using transclusion to attach modal content, which means any new scope entries made within modal are created in child scope. This happens with form directive.
This is known issue: https://github.com/angular-ui/bootstrap/issues/969
I proposed the quick workaround which works for me, with Angular 1.2.16:
<form name="$parent.userForm">
The userForm is created and available in modal's controller $scope. Thanks to scope inheritance userForm access stays untouched in the markup.
<div ng-class="{'has-error': userForm.email.$invalid}"}>
So, in my form I would have to set a name="$parent.friendForm" attribute to <form>, and then bind the radio button model to it, ng-model="friendForm.chosenFriend" to be able to read it from the modal scope at $scope.friendForm.chosenFriend.
I have an app that will make 2 $http queries to an external API and get 2 different JSON responses. These responses will populate a ng-repeat, headers, etc.
My problem is that I want to include a 3rd query, dependent on the first two.
Like so:
I get artist JSON and release JSON, and I use artist.name and release.title to populate the URL of the third $http query.
So far I've managed to get the two first queries, and once the results they are displaying in the ng-repeat, with ng-click I launch the 3rd query and populate an img ng-src.
Buuut, my problem is that I want the img ng-src to be populated automatically without ng-click, so the function that triggers the 3rd query has to get launched right after the 2 first queries. And also, in my working version right now, the img that I fetch with ng-click, will populate all items in ng-repeat. Meaning that every item should get their own image, and right now they don't.
I've created a working Plunker, if you search for a music artist and click on a result and then on an album, you'll see what I mean.
Basically, I think I'm missing a piece of logic that will put everything together and in proper trigger order.
Any thoughts?
My JS:
angular.module('myApp', ['ngResource'])
function Ctrl($scope, $http) {
var search = function(name) {
if (name) {
$http.get('http://api.discogs.com/database/search?type=artist&q='+ name +'&page=1&per_page=5').
success(function(data3) {
$scope.clicked = false;
$scope.results = data3.results;
});
}
$scope.reset = function () {
$scope.sliding = false;
$scope.name = undefined;
}
}
$scope.$watch('name', search, true);
$scope.getDetails = function (id) {
$http.get('http://api.discogs.com/artists/' + id).
success(function(data) {
$scope.artist = data;
});
$http.get('http://api.discogs.com/artists/' + id + '/releases?page=1&per_page=100').
success(function(data2) {
$scope.releases = data2.releases;
});
$scope.clicked = true;
$scope.sliding = true;
$scope.getImages = function (title, name) {
$http.get('http://ws.audioscrobbler.com/2.0/?method=album.getinfo&api_key=e8aefa857fc74255570c1ee62b01cdba&artist=' + name + '&album='+ title +'&format=json').
success(function(data4) {
$scope.images = data4;
});
}
}
};
My directive:
angular.module('myApp', ['ngResource'])
.directive('artistData', function() {
return{
restrict: 'E',
template: '<div class="col-md-8 col-md-offset-2"> \
<h1 ng-show="artist.name" class="artist-name">{{artist.name}}</h1> \
<div class="header-border" ng-show="artist.name"></div> \
<input ng-show="artist.name" class="form-control" ng-model="album" /> \
<div class="col-md-3" ng-click="getImages(release.title, artist.name)" ng-repeat="release in releases | filter:album | filter:{ role: \'main\' }"><div class="release">{{release.title}}<img class="img-responsive" ng-src="{{images.album.image[2][\'#text\']}}" /></div></div> \
</div>',
replace: true
};
})
And my HTML:
<div class="container">
<div class="row" ng-controller="Ctrl">
<div class="col-md-8 col-md-offset-2">
<div class="intro">
<div class="intro-text" ng-class="{'slide':sliding}">
<h1>Howdy stranger!</h1>
<h3>Use the form below to search for an artist and start building your record collection!</h3>
</div>
<input type="text" ng-model="name" class="form-control input-lg" ng-class="{'slide':sliding}" ng-focus="reset()" placeholder="Artist name"/>
</div>
<ul ng-hide="clicked" class="search-results">
<li ng-repeat="result in results" ng-click="getDetails(result.id)">{{result.title}}</li>
</ul>
</div>
<artist-data></artist-data>
</div>
</div>
I would use "Chaining Promises" in this case.
In basic words you call new async task on response of previous.
You can read this POST that might help you