Passing calculated value to ng-model - javascript

I am new to AngularJS and am trying to set up a simple Orders form. I'm having problems passing the id value to the controller. I want it to be the last order id + 1 so it acts as an identity field. Ideally I'd like it to be hidden, but if I could just get this part working that would help.
Here is what I have tried:
HTML:
<div ng-controller = "OrdersCtrl">
<h1>Orders</h1>
<form class="form-inline" ng-submit="addOrder()">
<strong>Add order: </strong>
<input value="{{orders[orders.length - 1].id + 1 }}" ng-model="newOrder.id" >
<input type="number" step="0.01" class="form-control" placeholder="Total" ng-model="newOrder.total">
<input type="number" class="form-control" ng-model="newOrder.product_id">
<input type="submit" value="+" class="btn btn-success">
</form>
<table class="table table-hover">
<thead>
<td>Order ID</td>
<td>Total</td>
<td>Product</td>
<td></td>
</thead>
<tr ng-repeat="order in orders | orderBy: '-id':reverse">
<td>
{{order.id}}
</td>
<td>
<strong>{{order.total | currency}}</strong>
</td>
<td>
{{order.product_id}}
<small ng-show="order.user_id"><br>-{{order.user_id}}</small>
</td>
<td>
<button ng-click="deleteOrder(order)" class="btn btn-danger btn-sm"><span class="gylphicon glyphicon-trash" aria-hidden="true"></span></button>
</td>
</tr>
</table>
</div>
JS:
var app = angular.module('shop', []);
$(document).on('ready page:load', function() {
angular.bootstrap(document.body, ['shop'])
});
app.controller('OrdersCtrl', ['$scope', function($scope){
$scope.orders = [
{id: 1, total: 55, product_id: 5, user_id: 1},
{id: 2, total: 33, product_id: 3, user_id: 1},
{id: 3, total: 51, product_id: 12, user_id: 1}
];
$scope.addOrder = function(){
if(!$scope.newOrder.product_id || $scope.newOrder.total === ''){return;}
$scope.orders.push($scope.newOrder);
};
$scope.delOrder = function(order){
$scope.orders.splice($scope.orders.indexOf(order), 1);
};
}]);
I'm not getting any errors but nothing is appearing in the id column. Any advice would be appreciated.

Since $scope keeps all the existing orders, you shouldn't need to pass in a new id. Just calculate it in the controller when adding a new order.
remove this line from the view
<input value="{{orders[orders.length - 1].id + 1 }}" ng-model="newOrder.id" >
In controller
$scope.newOrder = {};
$scope.addOrder = function(){
if($scope.newOrder.total === ''){ return; }
$scope.newOrder.id = $scope.orders[$scope.orders.length - 1].id + 1
$scope.orders.push($scope.newOrder);
$scope.newOrder = {};
};

Related

Can't print the Array in view using ng-repeat in angular JS

I have designed the dynamic table with the various type of the input field.We can add and delete the row as per the requirement.
Here is my HTML view code:
<body>
<div ng-app="appTable">
<div ng-controller="Allocation">
<button ng-click="add()"> Add </button>
<button ng-click="remove()">remove</button>
<table>
<th>
<td>Date</td>
<td>Project</td>
<td>Release</td>
<td>Feature</td>
<td>Module name</td>
<td>Hours spent</td>
<td>Comment</td>
</th>
<tr ng-repeat="data in dataList">
<td><input type="checkbox" ng-model="data.isDelete"/></td>
<td>
<input type="text"
datepicker
ng-model="data.date" />
</td>
<td><input type="text" ng-model="data.dept"/></td>
<td>
<select ng-model="data.release" ng-options="x for x in range">
</select>
</td>
<td>
<select ng-model="data.feature" ng-options="x for x in feature">
</select>
</td>
<td>
<input type = "text" ng-model = "data.modulename">
</td>
<td>
<select ng-model="data.hours" ng-options="x for x in hours">
</select>
</td>
<td>
<input type = "text" ng-model = "data.comment">
</td>
</tr>
</table>
<button ng-click="Submit()">Submit</button>
<tr ng-repeat="data in dataList">
<p>{{data.date}}</p>
<p>{{test}}</p>
</tr>
</div>
</div>
</body>
Here my angularJS script:
<script>
var app = angular.module("appTable", []);
app.controller("Allocation", function($scope) {
$scope.hours = ["1", "2", "3"];
$scope.range = ["1", "2", "3"];
$scope.feature = ["UT", "FSDS", "Coding/Devlopment", "QA"];
$scope.dataList = [{
date: '17/07/2016',
dept: 'OneCell',
release: '1',
feature: "UT",
modulename: "Redundancy",
hours: "1",
comment: "Add extra information"
}];
$scope.add = function() {
var data = {};
var size = $scope.dataList.length - 1;
data.date = $scope.dataList[size].date;
data.dept = $scope.dataList[size].dept;
data.release = $scope.dataList[size].release;
data.feature = $scope.dataList[size].feature;
data.modulename = $scope.dataList[size].modulename;
data.hours = $scope.dataList[size].hours;
data.comment = $scope.dataList[size].comment;
$scope.dataList.push(data);
};
$scope.Submit = function() {
$scope.test = "Submit is pressed...";
};
$scope.remove = function() {
var newDataList = [];
angular.forEach($scope.dataList, function(v) {
if (!v.isDelete) {
newDataList.push(v);
}
});
$scope.dataList = newDataList;
};
});
app.directive("datepicker", function () {
function link(scope, element, attrs, controller) {
// CALL THE "datepicker()" METHOD USING THE "element" OBJECT.
element.datepicker({
onSelect: function (dt) {
scope.$apply(function () {
// UPDATE THE VIEW VALUE WITH THE SELECTED DATE.
controller.$setViewValue(dt);
});
},
dateFormat: "dd/mm/yy" // SET THE FORMAT.
});
}
return {
require: 'ngModel',
link: link
};
});
</script>
I have taken the dataList array(list) to store the rows the of table.Every time when row will be added or deleted then respective element in the dataList array will be added and delete.
I have put the "submit" button in my view.When this button will be pressed then all the dataList element will be printed as shown here,
<button ng-click="Submit()">Submit</button>
<tr ng-repeat="data in dataList">
<p>{{data.date}}</p>
<p>{{test}}</p>
</tr>
But some how the dataList elements are not printed.However I am able to print the value of the test string.Please help.
Here you are using plain <tr> element for ng-repeat, this will not work, as it require proper structure of table.
E.g.:
<table>
<tr ng-repeat="data in dataList">
<td>
<p>{{data.date}}</p>
</td>
</tr>
</table>
P.S. : Your submit button is doing nothing. Just printing one statement. Above code of ng-repeat will work on each add and delete statement. i.e. it will print data simultaneously.

Duplicated form after click button add

Anybody help me, I have these working code currently:
HTML:
<body ng-controller="ExampleCtrl">
<label>Category:</label>
<select ng-model="product.category" ng-options="category as category.name for category in categories"></select>
</label><br/><br />
<table class="table" ng-repeat="attr in product.category.templateAttribute">
<thead>
<tr>
<th colspan="4">{{attr.attribute}}</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<input value="{{attr.attribute}}" />
</td>
<td>
<input placeholder="name" ng-model="product.attributes[attr.attribute].name" />
</td>
<td>
<input placeholder="additional price" ng-model="product.attributes[attr.attribute].additionalPrice" />
</td>
<td rowspan="2">
<button type="button" ng-click="addItem(product.category.templateAttribute, attr)">
add
</button>
</td>
</tr>
<tr>
<td colspan="3">
<input type="file" class="form-control" ng-model="product.attributes[attr.attribute].file"/>
</td>
</tr>
</tbody>
</table>
JS
function ExampleCtrl($scope){
$scope.categories = [
{
name:'custom',
templateAttribute: [
{attribute: 'material'},
{attribute: 'soles'},
{attribute: 'size'}
]
}
];
$scope.products = [
{
name: 'custom',
category: {
name:'custom',
templateAttribute: [
{
type: "string",
attribute: "material"
},
{
type: "string",
attribute: "soles"
},
{
type: "string",
attribute: "size"
}
]
}
}
];
// add menu item
$scope.addItem = function(list, item){
list.push(angular.copy(item));
item = {};
};
// remove menu item
$scope.removeItem = function(list, index){
list.splice(index ,1);
};
}
angular
.module('app', [])
.controller("ExampleCtrl", ExampleCtrl)
For a demo :
Seet Demo
My problem is when I fill out one form above and click on the add button, it will display a new form, but that form always has the same value. How to fix my problem?
item should be defined as {} before pushing in list array.
If you do not want to send any model data through view then there is no point of sending attr argument to controller
Try this:
// Code goes here
function ExampleCtrl($scope) {
$scope.categories = [{
name: 'custom',
templateAttribute: [{
attribute: 'material'
}, {
attribute: 'soles'
}, {
attribute: 'size'
}]
}];
$scope.products = [{
name: 'custom',
category: {
name: 'custom',
templateAttribute: [{
type: "string",
attribute: "material"
}, {
type: "string",
attribute: "soles"
}, {
type: "string",
attribute: "size"
}]
}
}];
// add menu item
$scope.addItem = function(list, item) {
item = {};
list.push(angular.copy(item));
};
// remove menu item
$scope.removeItem = function(list, index) {
list.splice(index, 1);
};
}
angular
.module('app', [])
.controller("ExampleCtrl", ExampleCtrl)
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.10/angular.min.js"></script>
<html ng-app="app">
<head>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.3.5/angular.js"></script>
<link rel="stylesheet" href="style.css" />
<script src="script.js"></script>
</head>
<body ng-controller="ExampleCtrl">
<h3>How to fix this</h3>
<p>My problem is when I fill out one form above and click on the add button, it will display a new form, but that form always has the same value. Demo:</p>
<label>Category:
<select ng-model="product.category" ng-options="category as category.name for category in categories"></select>
</label>
<br/>
<br />
<table class="table" ng-repeat="attr in product.category.templateAttribute">
<thead>
<tr>
<th colspan="4">{{attr.attribute}}</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<input value="{{attr.attribute}}" />
</td>
<td>
<input placeholder="name" ng-model="product.attributes[attr.attribute].name" />
</td>
<td>
<input placeholder="additional price" ng-model="product.attributes[attr.attribute].additionalPrice" />
</td>
<td rowspan="2">
<button type="button" ng-click="addItem(product.category.templateAttribute, attr)">
add
</button>
</td>
</tr>
<tr>
<td colspan="3">
<input type="file" class="form-control" ng-model="product.attributes[attr.attribute].file" />
</td>
</tr>
</tbody>
</table>
</body>
</html>
Codepen demo

How to use submit button to search the record in a table?

Here is my index.html page
------index.html-------
<!DOCTYPE html>
<html>
<head>
<script data-require="angular.js#1.4.0-beta.6" data-semver="1.4.0-beta.6"
src="https://code.angularjs.org/1.4.0-beta.6/angular.js"></script>
<script src="script.js"></script>
</head>
<body>
<div ng-app="myApp" ng-controller="PeopleCtrl"> <input type="text"
name="search1" >
<input type="submit" ng-model="search1" value="search"
ng-click="checkAll"> <table border="1" ng-init="ageToShow=(people|
underTwenty: 20).length >= 1">
<tr name="search1" > <th>Id</th> <th>Name</th> <th ng-show="ageToShow"
ng-if="!ageToShow">Age</th> </tr> <tr ng-repeat="person in
people|filter: search" ng-show="person.age>20" >
<td><span>{{person.id}}</span> </td> <td><span>{{person.name}}</span>
</td> <td ng-show="!ageToShow"><span>{{person.age}}</span> </td> </tr>
</table>
</div> </body> </html>
What i need is to use submit button to search the record .... And here is my script.js file...
--------script.js--------
// Code goes here
var myApp = angular.module('myApp', []);
myApp.controller('PeopleCtrl', function($scope,$filter) {
$scope.people = ([{
id: 1,
name: "Peter",
age: 22 }, {
id: 2,
name: "David",
age: 12 }, {
id: 3,
name: "Anil",
age: 32 }, {
id: 4,
name: "Chean",
age: 22 }, {
id: 5,
name: "Niladri",
age: 18 }
]);
$scope.people3 = $scope.people;
$scope.$watch('search1', function(val)
{
$scope.people = $filter('filter')($scope.people3, val);
});
}); myApp.filter('underTwenty', function() {
return function(values, limit) {
var returnValue = [];
angular.forEach(values, function(val, ind) {
if (val.age < limit)
returnValue.push(val);
}); return returnValue; }; });
And here goes my coding in plunker: http://plnkr.co/edit/?p=preview
Only for filtering if you are planning to do submit the form, then I'll suggest you to don't prefer form submit.
Form getting the same requirement done I'd create one dummy field for search text-box & then I'd assign that would to search model which we using for filter on click of search ng-click="search = search1"
HTML
<input type="text" name="search1" ng-model="search1"/>
<input type="button" value="search" ng-click="search = search1">
<table border="1" ng-init="ageToShow=(people| underTwenty: 20).length >= 1">
<tr name="search1">
<th>Id</th>
<th>Name</th>
<th ng-show="ageToShow" ng-if="!ageToShow">Age</th>
</tr>
<tr ng-repeat="person in people|filter: search" ng-show="person.age>20">
<td><span>{{person.id}}</span>
</td>
<td><span>{{person.name}}</span>
</td>
<td ng-show="!ageToShow"><span>{{person.age}}</span>
</td>
</tr>
</table>
& Do remove the watch from search1 variable. So the filtering will not occur on change of search1
Working Plunkr

Combine two Knockout Examples

I am trying to get two examples from knockout.com working and I have yet to figure it out. Any help would be greatly appreciated!
http://jsfiddle.net/gZC5k/2863/
When running this project and using a debugger I get an error:
Uncaught ReferenceError: Unable to process binding "foreach: function (){return linesa }"
Message: linesa is not defined
From the original example I changed lines to linesa to see if anything else was screwing it up. It still did not like linesa
My main goal is to get these two samples working together. The Add a contact button works but the Add product does not work.
Thank you!
<div class='liveExample'>
<h2>Contacts</h2>
<div id='contactsList'>
<table class='contactsEditor'>
<tr>
<th>First name</th>
<th>Last name</th>
<th>Phone numbers</th>
</tr>
<tbody data-bind="foreach: contactsa">
<tr>
<td>
<input data-bind='value: firstName' />
<div><a href='#' data-bind='click: $root.removeContact'>Delete</a></div>
</td>
<td><input data-bind='value: lastName' /></td>
<td>
<table>
<tbody data-bind="foreach: phones">
<tr>
<td><input data-bind='value: type' /></td>
<td><input data-bind='value: number' /></td>
<td><a href='#' data-bind='click: $root.removePhone'>Delete</a></td>
</tr>
</tbody>
</table>
<a href='#' data-bind='click: $root.addPhone'>Add number</a>
</td>
</tr>
</tbody>
</table>
</div>
<p>
<button data-bind='click: addContact'>Add a contact</button>
<button data-bind='click: save, enable: contactsa().length > 0'>Save to JSON</button>
</p>
<textarea data-bind='value: lastSavedJson' rows='5' cols='60' disabled='disabled'> </textarea>
</div>
<div class='liveExample'>
<table width='100%'>
<thead>
<tr>
<th width='25%'>Category</th>
<th width='25%'>Product</th>
<th class='price' width='15%'>Price</th>
<th class='quantity' width='10%'>Quantity</th>
<th class='price' width='15%'>Subtotal</th>
<th width='10%'> </th>
</tr>
</thead>
<tbody data-bind='foreach: linesa'>
<tr>
<td>
<select data-bind='options: sampleProductCategories, optionsText: "name", optionsCaption: "Select...", value: category'> </select>
</td>
<td data-bind="with: category">
<select data-bind='options: products, optionsText: "name", optionsCaption: "Select...", value: $parent.product'> </select>
</td>
<td class='price' data-bind='with: product'>
<span data-bind='text: formatCurrency(price)'> </span>
</td>
<td class='quantity'>
<input data-bind='visible: product, value: quantity, valueUpdate: "afterkeydown"' />
</td>
<td class='price'>
<span data-bind='visible: product, text: formatCurrency(subtotal())' > </span>
</td>
<td>
<a href='#' data-bind='click: $parent.removeLine'>Remove</a>
</td>
</tr>
</tbody>
</table>
<p class='grandTotal'>
Total value: <span data-bind='text: formatCurrency(grandTotal())'> </span>
</p>
<button data-bind='click: addLine'>Add product</button>
<button data-bind='click: save'>Submit order</button>
</div>
var initialData = [
{ firstName: "Danny", lastName: "LaRusso", phones: [
{ type: "Mobile", number: "(555) 121-2121" },
{ type: "Home", number: "(555) 123-4567"}]
},
{ firstName: "Sensei", lastName: "Miyagi", phones: [
{ type: "Mobile", number: "(555) 444-2222" },
{ type: "Home", number: "(555) 999-1212"}]
}
];
var ContactsModel = function(contactstest) {
var self = this;
self.contactsa = ko.observableArray(ko.utils.arrayMap(contactstest, function(contact) {
return { firstName: contact.firstName, lastName: contact.lastName, phones: ko.observableArray(contact.phones) };
}));
self.addContact = function() {
self.contactsa.push({
firstName: "",
lastName: "",
phones: ko.observableArray()
});
};
self.removeContact = function(contact) {
self.contactsa.remove(contact);
};
self.addPhone = function(contact) {
contact.phones.push({
type: "",
number: ""
});
};
self.removePhone = function(phone) {
$.each(self.contactsa(), function() { this.phones.remove(phone) })
};
self.save = function() {
self.lastSavedJson(JSON.stringify(ko.toJS(self.contactsa), null, 2));
};
self.lastSavedJson = ko.observable("")
};
ko.applyBindings(new ContactsModel(initialData));
function formatCurrency(value) {
return "$" + value.toFixed(2);
}
var CartLine = function() {
var self = this;
self.category = ko.observable();
self.product = ko.observable();
self.quantity = ko.observable(1);
self.subtotal = ko.computed(function() {
return self.product() ? self.product().price * parseInt("0" + self.quantity(), 10) : 0;
});
// Whenever the category changes, reset the product selection
self.category.subscribe(function() {
self.product(undefined);
});
};
var Cart = function() {
// Stores an array of lines, and from these, can work out the grandTotal
var self = this;
self.linesa = ko.observableArray([new CartLine()]); // Put one line in by default
self.grandTotal = ko.computed(function() {
var total = 0;
$.each(self.linesa(), function() { total += this.subtotal() })
return total;
});
// Operations
self.addLine = function() { self.linesa.push(new CartLine()) };
self.removeLine = function(line) { self.linesa.remove(line) };
self.save = function() {
var dataToSave = $.map(self.linesa(), function(line) {
return line.product() ? {
productName: line.product().name,
quantity: line.quantity()
} : undefined
});
alert("Could now send this to server: " + JSON.stringify(dataToSave));
};
};
ko.applyBindings(new Cart());
ViewModel is a ContactsModel, since ContactsModel does not have a linesa property, it cannot render the contents of the table.
<tbody data-bind='foreach: linesa'>
this is the offending line.
You are working with 2 ViewModels actually, the Cart ViewModel and the Contacts ViewModel.
you need to make a new ViewModel that implements both ViewModels and you can bind the views using with binding.
Code:
function CombinedViewModel(){
this.cart=new Cart();
this.contact=new Contact();
}
ko.appyBindings(new CombinedViewModel());
and for the bindings
<div data-bind="with:cart"><!-- cart html view goes here --></div>
<div data-bind="with:contact"><!-- contact html view goes here --></div>

Differentiating current textbox value from old one and showing in Angular JS

My code is like this
<body>
<div>
<table ng-app='myApp' ng-controller="MainCtrl">
<thead></thead>
<tbody ng-repeat="prdElement in palletElement track by $index">
<tr>
<td>{{prdElement.name}}</td>
</tr>
<tr ng-repeat="data in prdElement.Data">
<td>{{data.itemId}}</td>
<td>{{data.shipmentId}}</td>
<td>{{data.itemCode}}</td>
<td>{{data.description}}</td>
<td>{{data.handlingUnit}}</td>
<td>{{data.weight}}</td>
<td>{{data.class}}</td>
<td>{{data.lenght}}</td>
<td>{{data.width}}</td>
<td>{{data.height}}</td>
<td>{{data.flag}}</td>
<td>
<input type="text" ng-model="data.quantity" placeholder=" Code" required />
</td>
</tr>
<tr>
<td>
<button ng-click="newPalletItem( prdElement,$event)">Submit</button>
</td>
</tr>
<!--<tr id="displayitems" >
<td>
{{palletElement}}
</td>
</tr>-->
</tbody>
</table>
</div>
(function () {
angular.module('myApp', []).controller('MainCtrl', function ($scope) {
var counter = 0;
$scope.palletElement = [{
name: 'Pallet 1',
Data: [{
name: 'item 1',
itemId: '284307',
shipmentId: 'eb44f690-c97a-40e3-be2a-0449559e171a',
itemCode: '',
description: 'Bicycle parts - frame',
quantity: '31',
handlingUnit: 'CTN',
weight: '613.04',
class: '',
lenght: '102',
width: '42',
height: '61',
flag: 'P'
}, {
name: 'item 2',
itemId: '284308',
shipmentId: 'eb44f690-c97a-40e3-be2a-0449559e171a',
itemCode: '',
description: 'Bicycle parts - fork',
quantity: '22',
handlingUnit: 'CTN',
weight: '242.99',
class: '',
lenght: '75',
width: '34',
height: '18',
flag: 'P'
}]
}]
$scope.newPalletItem = function (palletElement, $event) {
counter++;
$scope.palletElement.push(palletElement);
}
});
}());
When some one changes the value in last column textbox and press submit button I want to calculate [preloded value in textbox - (minus) current value in that text box ] and show it in next row. So far I have managed to duplicate the entire data completely to next row. but have no Idea in how to achieve rest. Can any one pint out a solution.
Fiddle
More details from Fiddle: as you can see current value is first text box is 31 if some one changes it to 10 when I duplicate the row to bottom I want that new textbox value to be shown as 21 (which is 31-10).
Please see here: http://jsfiddle.net/8r8cxcup/
newPalletImte:
$scope.newPalletItem = function (palletElement, $event) {
var npalletElement = {};
angular.copy(palletElement, npalletElement);
counter++;
angular.forEach(npalletElement.Data, function (row) {
if (row.quantity != row.newquantity) {
row.quantity = row.quantity - row.newquantity;
}
});
$scope.palletElement.push(npalletElement);
};
});
HTML:
<table ng-app='myApp' ng-controller="MainCtrl">
<thead></thead>
<tbody ng-repeat="prdElement in palletElement track by $index">
<tr>
<td>{{prdElement.name}}</td>
</tr>
<tr ng-repeat="data in prdElement.Data" ng-init="data.newquantity = data.quantity">
<td>{{data.itemId}}</td>
<td>{{data.shipmentId}}</td>
<td>{{data.itemCode}}</td>
<td>{{data.description}}</td>
<td>{{data.handlingUnit}}</td>
<td>{{data.weight}}</td>
<td>{{data.class}}</td>
<td>{{data.lenght}}</td>
<td>{{data.width}}</td>
<td>{{data.height}}</td>
<td>{{data.flag}}</td>
<td>
<input type="text" ng-model="data.newquantity" placeholder=" Code" required />
</td>
</tr>
<tr>
<td>
<button ng-click="newPalletItem( prdElement,$event)">Submit</button>
</td>
</tr>
<!--<tr id="displayitems">
<td>
{{palletElement}}
</td>
</tr>-->
</tbody>
</table>

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