Uploading image to Kinvey and Angularjs - javascript

I am trying to change what my app currently does so that instead of inputing a url to reference an image, it uploads the image to the Kinvey collection instead.
Here is a JSfiddle of how I am currently saving the info from my form to my kinvey collection.
http://jsfiddle.net/k6MQK/
Heres my angular code for saving the form data:
$scope.savePeep = function () {
var dataObj = angular.copy($scope.peep);
delete dataObj['$$hashKey'];
// Add the ad hoc fields to the peep object if they are filled out
if ($scope.adHocItem) {
dataObj.adHocLocation = $scope.adHocItem.normalized_location;
dataObj.adHocLocation_display = $scope.adHocItem.display_location;
}
KinveyService.savePeep(dataObj, function (_result) {
debugger;
// update local collection
KinveyService.setCollectionObject(_result.data, $stateParams.peepId);
$state.transitionTo('home');
});
};
I want to change it so that instead of a Text input like this:
<input type="text" id="menu_url" name="menu_url"
placeholder="" class="form-control" ng-model="peep.menu_url">
its a file upload input that works.
<input type="file" id="menu_url" name="menu_url"
placeholder="" class="form-control" ng-model="peep.menu_url">

Simple File Upload with Kinvey & AngularJS http://bit.ly/1ncdQLq
<!DOCTYPE html>
<html>
<head>
<title>Kinvey File Demo</title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.9/angular.min.js"></script>
<script src="https://da189i1jfloii.cloudfront.net/js/kinvey-angular-1.1.4.min.js"></script>
</head>
<body ng-app="kinveyUploadApp" ng-controller="MainCtrl">
<input type="file" id="files" name="files[]" />
<p ng-if="fileModel">
File Size: {{fileModel.size}} Last Modified: {{fileModel['_kmd'].lmt | date:'yyyy-MM-dd HH:mm:ss Z'}}
</p>
<script>
angular.module('kinveyUploadApp', ['kinvey'])
.run(['$kinvey', function ($kinvey) {
// Kinvey initialization starts
var promise = $kinvey.init({
appKey: 'appKey',
appSecret: 'appSecret'
});
promise.then(function () {
// Kinvey initialization finished with success
console.log("Kinvey init with success");
}, function (errorCallback) {
// Kinvey initialization finished with error
console.log("Kinvey init with error: " + JSON.stringify(errorCallback));
});
}])
.controller('MainCtrl', ['$scope', '$kinvey', function ($scope, $kinvey) {
$scope.fileModel = {};
angular.element(document).find('input')[0].addEventListener('change', function (e) {
var theFile = e.target.files[0];
var promise = $kinvey.File.upload(theFile, {
_filename: theFile.name,
public: true,
size: theFile.size,
mimeType: theFile.type
}).then(function (_data) {
console.log("[$upload] success: " + JSON.stringify(_data, null, 2));
$scope.fileModel = _data;
}, function error(err) {
console.log('[$upload] received error: ' + JSON.stringify(err, null, 2));
});
}, false);
}]);
</script>
</body>

Related

Knockout JS How to Access a Value from Second View Model / Binding

I am new to Knockout JS and think it is great. The documentation is great but I cannot seem to use it to solve my current problem.
The Summary of my Code
I have two viewmodels represented by two js scripts. They are unified in a parent js file. The save button's event is outside
both foreach binders. I can save all data in the details foreach.
My Problem
I need to be able to include the value from the contacts foreach binder with the values from the details foreach binder.
What I have tried
I have tried accessig the data from both viewmodels from the parent viewmodel and sending the POST request to the controller from there but the observeableArrays show undefined.
Create.CSHTML (Using MVC5 no razor)
<div id="container1" data-bind="foreach: contacts">
<input type="text" data-bind="value: contactname" />
</div>
<div data-bind="foreach: details" class="card-body">
<input type="text" data-bind="value: itemValue" />
</div>
The save is outside of both foreach binders
<div class="card-footer">
<button type="button" data-bind="click: $root.save" class="btn
btn-success">Send Notification</button>
</div>
<script src="~/Scripts/ViewScripts/ParentVM.js" type="text/javascript"></script>
<script src="~/Scripts/ViewScripts/ViewModel1.js" type="text/javascript"></script>
<script src="~/Scripts/ViewScripts/ViewModel2.js" type="text/javascript"></script>
ViewModel1
var ViewModel1 = function (contacts) {
var self = this;
self.contacts = ko.observableArray(ko.utils.arrayMap(contacts, function (contact) {
return {
contactName: contact.contactName
};
}));
}
ViewModel2
var ViewModel2 = function (details) {
var self = this;
self.details = ko.observableArray(ko.utils.arrayMap(details, function (detail) {
return {
itemNumber: detail.itemValue
};
}));
}
self.save = function () {
$.ajax({
url: baseURI,
type: "POST",
data: ko.toJSON(self.details),
dataType: "json",
contentType: "application/json",
success: function (data) {
console.log(data);
window.location.href = "/Home/Create/";
},
error: function (error) {
console.log(error);
window.location.href = "/Homel/Create/";
}
});
};
ParentViewModel
var VM1;
var VM2;
var initialContactInfo = [
{
contactPhone: ""
}
]
var initialForm = [
{
itemValue: ""
]
}
$(document).ready(function () {
if ($.isEmptyObject(VM1)) {
ArnMasterData = new ViewModel1(initialContactInfo);
ko.applyBindings(VM1, document.getElementById("container1"));
}
if ($.isEmptyObject(VM2)) {
VM2 = new ViewModel2(initialForm);
ko.applyBindings(VM2, document.getElementById("container2"));
}
});

How do I get data to show up in angular ui.grid from an $http request continuation

Okay I'm going to keep this as short as possible.
I've been studying Angular for a bit now and there's still a lot I need to learn, right now I'm trying to figure out how to connect end to end with headers in a service which is completely new to me as I've never done end to end integration.
The code below is provided from another stack overflow answer and what I want to know is how do I connect what they have with say dataService.js. This is all new to me so I'm trying to ask this the best way possible.
<!DOCTYPE html>
<html >
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
</head>
<body ng-app="app">
<div ng-controller="gridController">
<!-- Initialise the grid with ng-init call -->
<div ui-grid="gridOptions" ng-init="GetGridData(urlList)">
</div>
</div>
<script src="Scripts/ng/angular.min.js"></script>
<script src="Scripts/ng-grid/ui-grid.min.js"></script>
<link rel="Stylesheet" type="text/css" href="Scripts/ng-grid/ui-rid.min.css" />
<script type="text/javascript">
var app = angular.module('app', ['ui.grid']);
app.controller("gridController",
["$scope", "$attrs", "$element", "$compile", "$http", "$q",
function ($scope, $attrs, $element, $compile, $http, $q)
{
$scope.urlList = "YourSourceUrl";
function fnGetList(url)
{
var deferred = $q.defer();
$http.get(url)
.success(function (data)
{
deferred.resolve(data);
})
.error(function (errorMessage)
{
alert(errorMessage);
deferred.reject;
});
return deferred.promise;
};
$scope.GetGridData = function (url)
{
console.log("In GetGridData: " + "Getting the data");
// Test Only - un-comment if you need to test the grid statically.
//$scope.loadData = ([
// {
// "UserName": "Joe.Doe",
// "Email": "Joe.Doe#myWeb.com"
// },
// {
// "UserName": "Jane.Doe",
// "Email": "Jane.Doe#myWeb.com"
// },
//]);
//return;
fnGetList(url).then(function (content)
{
// Assuming your content.data contains a well-formed JSON
if (content.data !== undefined)
{
$scope.loadData = JSON.parse(content.data);
}
});
};
$scope.gridOptions =
{
data: 'loadData',
columnDef:
[
{ field: 'UserName', name: 'User' },
{ field: 'Email', name: 'e-mail' }
]
};
}
]);
</script>
</body>
Provided from: How do I get data to show up in angular ui.grid from an $http request
The method I use is to pass the URL as an AJAX call and then wait for the data to get back after which I connect the JSON data to the ng-grid. Note that there will be a delay in getting the data back from the URL and you will have to have a timer that will keep checking for the data return begin valid.
function setCar(){
$.ajax({
type: "POST",
url: '/Test/ConfigConnect.json?details=&car='+car+'&id=1',
dataType: 'json',
success: function(data){
configData = data;
}
});}
The timer function that is part of the javascirpt is also given below.
var timer = setInterval(function() {
$scope.$apply(updatePage);
}, 500);
var updatePage = function() {
if (typeof configData !== 'undefined')
{
clearInterval(timer);
$scope.loadData = configData;
}
};

How to read the data from json file and return as string or object in angularJS?

personManagerInstance.getString("firstname",'common','en') currently i pass direct string in ui its affecting but what i exactly need is read the data from json file and return as string..
personManagerInstance.getString("firstname",'common','en') method i need to read the data from json file and return as string or object?
personManagerInstance.getString("lastname",'registration','en') this method based on parameter read json from different location and return as string...
var PersonManager = function ()
{
return {
$get: function ($http, person)
{
var mainInfo = $http({
method: "get",
//"js/resources-locale_en_es.json"
url: "js/resources-locale_en_es.json"
}).success(function (data) {
return data.title;
});
return {
getPersonFirstName: function ()
{
return "as";
},
getPersonLastName: function ()
{
return person.lastName;
},
getString: function (labelid, moduleName, language)
{
//Here am getting the value id, moduleName, language based on the vaule I need to change the url path
//(i.e) js/resources-locale_en_es.json, js/registration/resources-locale_en_es.json
var l = mainInfo.success(function (data) {
person.firstName = data.title;
})
return person.firstName;
}
};
}
};
};
angular.module("mainModule", [])
.value("person", {
firstName: "",
lastName: ""
})
.provider("personManager", PersonManager)
.controller("mainController", function ($scope, person, personManager)
{
person.firstName = "John";
person.lastName = "Doe";
$scope.personInstance = person;
$scope.personManagerInstance = personManager;
});
<!DOCTYPE html>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.2.26/angular.min.js"></script>
<script language="javascript" type="text/javascript" src="http://code.jquery.com/jquery-1.8.3.min.js"></script>
<script src="script.js"></script>
</head>
<body ng-app="mainModule">
<div ng-controller="mainController">
<strong>First name:</strong> {{personManagerInstance.getPersonFirstName()}}<br />
<strong>Last name:</strong> {{personManagerInstance.getPersonLastName()}}<br />
<strong>Full name:</strong> {{personManagerInstance.getString("firstname",'common','en')}} {{personManagerInstance.getString("lastname",'registration','en')}}<br />
<br />
<label>Set the first name: <input type="text" ng-model="personInstance.firstName"/></label><br />
<label>Set the last name: <input type="text" ng-model="personInstance.lastName"/></label>
</div>
</body>
</html>
I don't see any trouble of using $http.get('file.json'),
you can use angular.toJson(result) to convert JSON string to object later on.
http://plnkr.co/edit/4K9sy5aCP4NML0nnYgZ4
This is solution for your question
$http({
method: "get",
url: "link to your json file"
}).success(function (data) {
callback(data);
});

Event default not triggering in jQuery module

I'm attempting to write a jQuery script to store an authentication token from a REST API service. I had a block of working code but decided to modularize to make the application more scalable. Now, it seems that the preventDefault portion is no longer working.
<form action="/" id="authorize">
<label for="username">Username:</label><br />
<input type="text" id="username" required /><br />
<label for="password">Password:</label><br />
<input type="password" id="password" required /><br />
<input type="submit" value="Authorize" /><span id="isValid" class="checkContainer"> </span>
</form><hr />
<label for="serviceType" class="fieldDisabled">Method: </label>
<select id="serviceType" disabled>
<option></option>
<option value="option1">Option 1</option>
<option value="option2">Option 2</option>
</select>
The script is saved separately as authorize.js and invoked in the module as follows:
<script src="js/authorize.js"></script>
<script>
$(document).ready(function() {
Authorize.init();
});
</script>
Here's the module itself:
var s;
var Authorize = {
token: null,
settings: {
username: $("#username"),
password: $("#password"),
form: $("#authorize"),
validationIcon: $("#isValid"),
selector: $("#serviceType"),
selectorLabel: $("label[for='serviceType']"),
serviceSelector: $(".methodFieldDisabled"),
url: "redacted"
},
init: function() {
s = Authorize.settings;
this.bindUIActions();
},
bindUIActions: function() {
s.form.submit(function(event) {
event.preventDefault();
data = Authorize.buildJSON(s.username.val(), s.password.val());
Authorize.getToken(json);
});
},
buildJSON: function(username, password) {
var data = {};
data['grant_type'] = password;
data['username'] = username;
data['password'] = password;
return data;
},
getToken: function(data) {
$.ajax({
type: "POST",
url: s.url,
data: data,
success: function(json) {
Authorize.success(json);
},
error: function(json) {
Authorize.error(json);
}
});
},
success: function(json) {
Authorize.token = json.accessToken;
Authorize.revealServiceSelector();
},
error: function(json) {
Authorize.hideServiceSelector();
},
revealServiceSelector: function() {
s.serviceSelector.hide();
if(s.validationIcon.hasClass("invalid")) {
s.validationIcon.removeClass("invalid");
}
selectorLabel.removeClass("fieldDisabled");
selector.prop("disabled", false);
s.validationIcon.addClass("valid");
},
hideServiceSelector: function() {
s.serviceSelector.hide();
if(s.validationIcon.hasClass("valid")) {
s.validationIcon.removeClass("valid");
}
selectorLabel.addClass("fieldDisabled");
selector.prop("disabled", "disabled");
s.validationIcon.addClass("invalid");
}
};
I've been toiling over this for about a day now and can't seem to locate the point of failure. When the form is submitted, it redirects to the root directory of the server instead of executing the script as intended.
Just a few typos which stopped the code in its tracks. The submission was the default behavior as your code failed to complete.
Use a debugger to see the errors at runtime (get to know and love your F12 debugging tools in Chrome etc!):
1) You have the wrong variable (json instead of data) on the line below so you get an error:
bindUIActions: function () {
s.form.submit(function (event) {
event.preventDefault();
data = Authorize.buildJSON(s.username.val(), s.password.val());
Authorize.getToken(data); // <<<<<<<<<<<<<<<<<<<<<<<
});
2) You also failed to put your scope (s) on a couple of variables:
revealServiceSelector: function () {
s.serviceSelector.hide();
if (s.validationIcon.hasClass("invalid")) {
s.validationIcon.removeClass("invalid");
}
s.selectorLabel.removeClass("fieldDisabled");
s.selector.prop("disabled", false);
s.validationIcon.addClass("valid");
},
hideServiceSelector: function () {
s.serviceSelector.hide();
if (s.validationIcon.hasClass("valid")) {
s.validationIcon.removeClass("valid");
}
s.selectorLabel.addClass("fieldDisabled");
s.selector.prop("disabled", "disabled");
s.validationIcon.addClass("invalid");
}
Your from action is pointed to "\" which is the root of your directory. Instead point it to the file that contains the code you want to fire.

Angularjs how to upload multipart form data and a file?

I'm a beginner to angular.js but I have a good grasp of the basics.
What I am looking to do is upload a file and some form data as multipart form data. I read that this isn't a feature of angular, however 3rd party libraries can get this done. I've cloned angular-file-upload via git, however I am still unable to post a simple form and a file.
Can someone please provide an example, html and js of how to do this?
First of all
You don't need any special changes in the structure. I mean: html input tags.
<input accept="image/*" name="file" ng-value="fileToUpload"
value="{{fileToUpload}}" file-model="fileToUpload"
set-file-data="fileToUpload = value;"
type="file" id="my_file" />
1.2 create own directive,
.directive("fileModel",function() {
return {
restrict: 'EA',
scope: {
setFileData: "&"
},
link: function(scope, ele, attrs) {
ele.on('change', function() {
scope.$apply(function() {
var val = ele[0].files[0];
scope.setFileData({ value: val });
});
});
}
}
})
In module with $httpProvider add dependency like ( Accept, Content-Type etc) with multipart/form-data. (Suggestion would be, accept response in json format)
For e.g:
$httpProvider.defaults.headers.post['Accept'] = 'application/json, text/javascript';
$httpProvider.defaults.headers.post['Content-Type'] = 'multipart/form-data; charset=utf-8';
Then create separate function in controller to handle form submit call.
like for e.g below code:
In service function handle "responseType" param purposely so that server should not throw "byteerror".
transformRequest, to modify request format with attached identity.
withCredentials : false, for HTTP authentication information.
in controller:
// code this accordingly, so that your file object
// will be picked up in service call below.
fileUpload.uploadFileToUrl(file);
in service:
.service('fileUpload', ['$http', 'ajaxService',
function($http, ajaxService) {
this.uploadFileToUrl = function(data) {
var data = {}; //file object
var fd = new FormData();
fd.append('file', data.file);
$http.post("endpoint server path to whom sending file", fd, {
withCredentials: false,
headers: {
'Content-Type': undefined
},
transformRequest: angular.identity,
params: {
fd
},
responseType: "arraybuffer"
})
.then(function(response) {
var data = response.data;
var status = response.status;
console.log(data);
if (status == 200 || status == 202) //do whatever in success
else // handle error in else if needed
})
.catch(function(error) {
console.log(error.status);
// handle else calls
});
}
}
}])
<script src="//unpkg.com/angular/angular.js"></script>
This is pretty must just a copy of that projects demo page and shows uploading a single file on form submit with upload progress.
(function (angular) {
'use strict';
angular.module('uploadModule', [])
.controller('uploadCtrl', [
'$scope',
'$upload',
function ($scope, $upload) {
$scope.model = {};
$scope.selectedFile = [];
$scope.uploadProgress = 0;
$scope.uploadFile = function () {
var file = $scope.selectedFile[0];
$scope.upload = $upload.upload({
url: 'api/upload',
method: 'POST',
data: angular.toJson($scope.model),
file: file
}).progress(function (evt) {
$scope.uploadProgress = parseInt(100.0 * evt.loaded / evt.total, 10);
}).success(function (data) {
//do something
});
};
$scope.onFileSelect = function ($files) {
$scope.uploadProgress = 0;
$scope.selectedFile = $files;
};
}
])
.directive('progressBar', [
function () {
return {
link: function ($scope, el, attrs) {
$scope.$watch(attrs.progressBar, function (newValue) {
el.css('width', newValue.toString() + '%');
});
}
};
}
]);
}(angular));
HTML
<form ng-submit="uploadFile()">
<div class="row">
<div class="col-md-12">
<input type="text" ng-model="model.fileDescription" />
<input type="number" ng-model="model.rating" />
<input type="checkbox" ng-model="model.isAGoodFile" />
<input type="file" ng-file-select="onFileSelect($files)">
<div class="progress" style="margin-top: 20px;">
<div class="progress-bar" progress-bar="uploadProgress" role="progressbar">
<span ng-bind="uploadProgress"></span>
<span>%</span>
</div>
</div>
<button button type="submit" class="btn btn-default btn-lg">
<i class="fa fa-cloud-upload"></i>
<span>Upload File</span>
</button>
</div>
</div>
</form>
EDIT: Added passing a model up to the server in the file post.
The form data in the input elements would be sent in the data property of the post and be available as normal form values.
It is more efficient to send the files directly.
The base64 encoding of Content-Type: multipart/form-data adds an extra 33% overhead. If the server supports it, it is more efficient to send the files directly:
Doing Multiple $http.post Requests Directly from a FileList
$scope.upload = function(url, fileList) {
var config = {
headers: { 'Content-Type': undefined },
transformResponse: angular.identity
};
var promises = fileList.map(function(file) {
return $http.post(url, file, config);
});
return $q.all(promises);
};
When sending a POST with a File object, it is important to set 'Content-Type': undefined. The XHR send method will then detect the File object and automatically set the content type.
Working Demo of "select-ng-files" Directive that Works with ng-model1
The <input type=file> element does not by default work with the ng-model directive. It needs a custom directive:
angular.module("app",[]);
angular.module("app").directive("selectNgFiles", function() {
return {
require: "ngModel",
link: function postLink(scope,elem,attrs,ngModel) {
elem.on("change", function(e) {
var files = elem[0].files;
ngModel.$setViewValue(files);
})
}
}
});
<script src="//unpkg.com/angular/angular.js"></script>
<body ng-app="app">
<h1>AngularJS Input `type=file` Demo</h1>
<input type="file" select-ng-files ng-model="fileList" multiple>
<h2>Files</h2>
<div ng-repeat="file in fileList">
{{file.name}}
</div>
</body>
You can check out this method for sending image and form data altogether
<div class="form-group ml-5 mt-4" ng-app="myApp" ng-controller="myCtrl">
<label for="image_name">Image Name:</label>
<input type="text" placeholder="Image name" ng-model="fileName" class="form-control" required>
<br>
<br>
<input id="file_src" type="file" accept="image/jpeg" file-input="files" >
<br>
{{file_name}}
<img class="rounded mt-2 mb-2 " id="prvw_img" width="150" height="100" >
<hr>
<button class="btn btn-info" ng-click="uploadFile()">Upload</button>
<br>
<div ng-show = "IsVisible" class="alert alert-info w-100 shadow mt-2" role="alert">
<strong> {{response_msg}} </strong>
</div>
<div class="alert alert-danger " id="filealert"> <strong> File Size should be less than 4 MB </strong></div>
</div>
Angular JS Code
var app = angular.module("myApp", []);
app.directive("fileInput", function($parse){
return{
link: function($scope, element, attrs){
element.on("change", function(event){
var files = event.target.files;
$parse(attrs.fileInput).assign($scope, element[0].files);
$scope.$apply();
});
}
}
});
app.controller("myCtrl", function($scope, $http){
$scope.IsVisible = false;
$scope.uploadFile = function(){
var form_data = new FormData();
angular.forEach($scope.files, function(file){
form_data.append('file', file); //form file
form_data.append('file_Name',$scope.fileName); //form text data
});
$http.post('upload.php', form_data,
{
//'file_Name':$scope.file_name;
transformRequest: angular.identity,
headers: {'Content-Type': undefined,'Process-Data': false}
}).success(function(response){
$scope.IsVisible = $scope.IsVisible = true;
$scope.response_msg=response;
// alert(response);
// $scope.select();
});
}
});

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