I have a list view that displays some contents from the api and along side a button that when clicked should show the details of the corresponding item from the list-view on another page, how to associate the button to the specific id and how to present a generic url that accepts these ids to route accordingly. I saw many similar posts but I didn't know how to route those or can't understand how each model is called at that route. Here's my current app, where I've not generalised the routing instead each button is associated to the first id and a route like /1 which takes it to a view to display details of the first element from the collection alone.
pollsscript.js
//defining the model
var QuestionModel = Backbone.Model.extend({
// urlRoot : "http://localhost:8000/polls/api/v1/question/",
});
//defining collection
var QuestionCollection = Backbone.Collection.extend({
url : "http://localhost:8000/polls/api/v1/question/",
model: QuestionModel
});
//list view of all the questions
var QuestionListView = Backbone.View.extend({
el: '.page',
render : function(){
var context = {};
this.questionCollection = new QuestionCollection();
this.questionCollection.fetch({
success: () => {
context['models'] = this.questionCollection.toJSON();
var template = _.template($('#question-list-template').html(),{});
this.$el.html(template(context));
}
})
return this;
}
});
//individual questions
var QuestionDetailsView = Backbone.View.extend({
el: '.page',
render : function(){
var context = {};
this.questionCollection = new QuestionCollection();
this.questionCollection.fetch({
success: () => {
context['model'] = this.questionCollection.get(1).toJSON();
var template = _.template($('#question-detail-template').html(),{});
this.$el.html(template(context));
}
})
return this;
}
});
var questionListView = new QuestionListView();
var questionDetailsView = new QuestionDetailsView();
var PageRouter = Backbone.Router.extend({
routes: {
'' : 'home',
'1' : 'details',
},
home : function(){
questionListView.render();
},
details: function(){
questionDetailsView.render();
},
});
//initializing router and setting up history for routing to work
var pageRouter = new PageRouter();
Backbone.history.start();
index.html
<html>
<head>
<title> </title>
</head>
<body>
<div class="container">
<h1>All polls</h1>
<div class="page"></div>
</div>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" integrity="sha384-PsH8R72JQ3SOdhVi3uxftmaW6Vc51MKb0q5P2rRUpPvrszuE4W1povHYgTpBfshb" crossorigin="anonymous">
<!-- main page template -->
<script type="text/template" id="question-list-template">
<table class = "table table-striped">
<thead>
<tr>
<th>Question</th>
<!-- <th>Date Published</th> -->
<th>Votes</th>
<th>Popular responses</th>
<th>Details</th>
</tr>
</thead>
<tbody>
<tr>
<% _.each(models, function(model){ %>
<tr>
<td><%= model.question_text %></td>
<!-- <td><%= model.pub_date%></td> -->
<td><%= model.total_votes%></td>
<td><%= model.pop_response%></td>
<td>Show details</td>
</tr>
<% }); %>
</tr>
</tbody>
</table>
</script>
<script type="text/template" id="question-detail-template">
<div>
<div><%= model.question_text %><div/>
<div>
<% _.each(model.choices, function(choices){ %>
<div><%= choices.choice_text %></div>
<div><%= choices.votes %></div>
<% }); %>
</div>
</div>
</script>
<script type="text/javascript" src="jquery-3.2.1.min.js"></script>
<script type="text/javascript" src="underscore-min.js"></script>
<script type="text/javascript" src="backbone-min.js"></script>
<script type="text/javascript" src="pollsscript.js"></script>
<!-- <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script> -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.3/umd/popper.min.js" integrity="sha384-vFJXuSJphROIrBnz7yo7oB41mKfc8JzQZiCq4NCceLEaO4IHwicKwpJf9c9IpFgh" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js" integrity="sha384-alpBpkh1PFOepccYVYDB4do5UnbKysX5WZXm3XxPqe5iKTfUKjNkCk9SaVuEZflJ" crossorigin="anonymous"></script>
</script>
</body>
</html>
index.html
<html>
<head>
<title> </title>
</head>
<body>
<div class="container">
<h1>All polls</h1>
<div class="page"></div>
</div>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" integrity="sha384-PsH8R72JQ3SOdhVi3uxftmaW6Vc51MKb0q5P2rRUpPvrszuE4W1povHYgTpBfshb" crossorigin="anonymous">
<!-- main page template -->
<script type="text/template" id="question-list-template">
<table class = "table table-striped">
<thead>
<tr>
<!-- <th> ID </th> -->
<th>Question</th>
<th>Votes</th>
<th>Popular responses</th>
<th>Details</th>
</tr>
</thead>
<tbody>
<tr>
<% _.each(models, function(model){ %>
<tr>
<!-- <td id="id"><%= model.id %></td> -->
<td><%= model.question_text %></td>
<td><%= model.total_votes%></td>
<td><%= model.pop_response%></td>
<td><a href="#<%= model.id %>" class="btn btn-info show-details">Show details</button></td>
<!-- <td><a href="#<%= model.id %>" class="btn btn-info show-details" data-id="<%= model.id %>">Show details</button></td> -->
</tr>
<% }); %>
</tr>
</tbody>
</table>
</script>
<script type="text/template" id="question-detail-template">
<div>
<div><%= model.question_text %><div/>
<div>
<% _.each(model.choices, function(choices){ %>
<div><%= choices.choice_text %></div>
<div><%= choices.votes %></div>
<% }); %>
</div>
</div>
</script>
<script type="text/javascript" src="jquery-3.2.1.min.js"></script>
<script type="text/javascript" src="underscore-min.js"></script>
<script type="text/javascript" src="backbone-min.js"></script>
<script type="text/javascript" src="pollsscript.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.3/umd/popper.min.js" integrity="sha384-vFJXuSJphROIrBnz7yo7oB41mKfc8JzQZiCq4NCceLEaO4IHwicKwpJf9c9IpFgh" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js" integrity="sha384-alpBpkh1PFOepccYVYDB4do5UnbKysX5WZXm3XxPqe5iKTfUKjNkCk9SaVuEZflJ" crossorigin="anonymous"></script>
</script>
</body>
</html>
pollsscript.js
//defining the model
var QuestionModel = Backbone.Model.extend({
// urlRoot : "http://localhost:8000/polls/api/v1/question/",
});
//defining collection
var QuestionCollection = Backbone.Collection.extend({
url : "http://localhost:8000/polls/api/v1/question/",
model: QuestionModel
});
//list view of all the questions
var QuestionListView = Backbone.View.extend({
el: '.page',
template : _.template($('#question-list-template').html()),
render : function(){
var context = {};
this.questionCollection = new QuestionCollection();
this.questionCollection.fetch({
success: () => {
context['models'] = this.questionCollection.toJSON();
this.$el.html(this.template(context));
}
})
return this;
},
// events: {
// 'click .show-details' : 'viewDetails',
// },
// viewDetails : function(e){
// var id = $(e.currentTarget).data("id");
// var item = this.questionCollection.get(id);
// var questionDetailsView = new QuestionDetailsView({
// model: item
// });
// questionDetailsView.render(); //get and pass model here
// }
});
//individual questions
var QuestionDetailsView = Backbone.View.extend({
el: '.page',
template : _.template($('#question-detail-template').html()),
render : function(){
var context = {};
context['model'] = this.model.toJSON();
this.$el.html(this.template(context));
return this;
}
});
var PageRouter = Backbone.Router.extend({
routes: {
'' : 'home',
':id' : 'details'
},
home : function(){
var questionListView = new QuestionListView();
questionListView.render();
},
details : function(id){
//alert(id);
var context = {};
this.questionCollection = new QuestionCollection();
this.questionCollection.fetch({
success: () => {
var item = this.questionCollection.get(id);
var questionDetailsView = new QuestionDetailsView({
model: item
});
questionDetailsView.render();
}
})
}
});
//initializing router and setting up history for routing to work
var pageRouter = new PageRouter();
Backbone.history.start();
I tried this, later, I associated the data-id with the button and gave the model.id I fetched from the api and then got the id on click and then passed the model to be rendered on the detail-view.
Still this doesn't change the router in anyway so still looking for a better way to do it.
Edit
Updated the code and fixed by associating model id with href, and created routes to fetch and get the model from in the router function.
Related
here I created sample program for employee list using wijmo grid, here my problem is i m not able to push the data in gird,
Note: error shows push undefined
Thanks in advance........................................
angular.module('app', ['wj']);
'use strict';
// declare app module
var app = angular.module('app');
// controller
app.controller('appCtrl', function ($scope, $http) {
data = [];
$scope.save=function(reg)
{
var obj = [reg];
$scope.data = new wijmo.collections.CollectionView(obj);
}
// create the filter and expose it to scope for customization
$scope.initialized = function (s, e) {
var flex = s;
$scope.filter = new wijmo.grid.filter.FlexGridFilter(flex);
$scope.downloadsColumnFilterType = wijmo.grid.filter.FilterType.Condition;
$scope.$apply();
$scope.filter.filterChanging.addHandler(function () {
console.log('filter changing');
});
$scope.filter.filterChanged.addHandler(function () {
console.log('filter changed');
});
$scope.filter.filterApplied.addHandler(function () {
console.log('filter applied');
});
}
// filters are localizable
// invalidate all Wijmo controls
// using a separate function to handle strange IE9 scope issues
$scope.data = new wijmo.collections.CollectionView(data);
});
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<link rel="stylesheet" href="style.css">
<script src="script.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.0.0-alpha/css/bootstrap.min.css" />
<!-- Wijmo -->
<script src="http://demos.wijmo.com/5/Angular/FlexGridFilter/FlexGridFilter/scripts/vendor/wijmo.min.js" type="text/javascript"></script>
<script src="http://demos.wijmo.com/5/Angular/FlexGridFilter/FlexGridFilter/scripts/vendor/wijmo.grid.min.js" type="text/javascript"></script>
<script src="http://demos.wijmo.com/5/Angular/FlexGridFilter/FlexGridFilter/scripts/vendor/wijmo.grid.filter.min.js" type="text/javascript"></script>
<script src="http://demos.wijmo.com/5/Angular/FlexGridFilter/FlexGridFilter/scripts/vendor/wijmo.input.min.js" type="text/javascript"></script>
<link href="http://demos.wijmo.com/5/Angular/FlexGridFilter/FlexGridFilter/styles/vendor/wijmo.min.css" rel="stylesheet" />
<!-- Wijmo-Angular interop -->
<script src="http://demos.wijmo.com/5/Angular/FlexGridFilter/FlexGridFilter/scripts/vendor/wijmo.angular.min.js" type="text/javascript"></script>
</head>
<body ng-app="app" ng-controller="appCtrl">
<table>
<tr>
<td>First Name</td>
<td>:</td>
<td><input type="text" ng-model="reg.fname"> </td>
</tr>
<tr>
<td>Last Name</td>
<td>:</td>
<td><input type="text" ng-model="reg.lname"> </td>
</tr>
<tr>
<td>Midle Name</td>
<td>:</td>
<td><input type="text" ng-model="reg.mname"> </td>
</tr>
<tr>
<td><input type="submit" ng-click=save(reg)> </td>
</tr>
</table>
<wj-flex-grid
style="height:300px"
initialized="initialized(s, e)"
items-source="data">
<wj-flex-grid-column header="ID" binding="id"></wj-flex-grid-column>
<wj-flex-grid-column header="fname" binding="fname" format='MMM/dd/yyyy'></wj-flex-grid-column>
<wj-flex-grid-column header="lname" binding="lname" format="t"></wj-flex-grid-column>
<wj-flex-grid-column header="mname" binding="mname"></wj-flex-grid-column>
</wj-flex-grid>
</div>
</html>
You should define newItemCreator function, that takes no parameters:
.controller("appCtrl", function ($scope) {
var data = new wijmo.collections.CollectionView([]);
// here
data.newItemCreator = function() {
var item = {};
item = angular.copy($scope.reg);
return item;
};
$scope.data = data;
// create the filter and expose it to scope for customization
$scope.initialized = function (s, e) {
var flex = s;
$scope.filter = new wijmo.grid.filter.FlexGridFilter(flex);
$scope.downloadsColumnFilterType = wijmo.grid.filter.FilterType.Condition;
$scope.$apply();
$scope.filter.filterChanging.addHandler(function () {
console.log('filter changing');
});
$scope.filter.filterChanged.addHandler(function () {
console.log('filter changed');
});
$scope.filter.filterApplied.addHandler(function () {
console.log('filter applied');
});
};
});
And use addNew() method on your button:
<td><button type="button" ng-click=data.addNew()>Save</button></td>
The below code pulls an array from firebase using ng-repeat and filters for the userId.
The issue is that when I use "!" it does not filter out the user, but instead nothing shows up. In other words when I replace the below ng-repeat filter:
ng-repeat="(id,item) in ideas| filter:user.google.id"
with this ng-repeat filter, with the intention of filtering out the user, it no longer works.
ng-repeat="(id,item) in ideas| filter:user.google.id"
How can I filter out list for any item that contains the user id?
See below and in this codepen for the full code: http://codepen.io/chriscruz/pen/LERrBW
HTML
<html ng-app="app">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.2/angular.min.js"></script>
<script src="https://cdn.firebase.com/js/client/2.0.2/firebase.js"></script>
<script src="https://cdn.firebase.com/libs/angularfire/0.9.0/angularfire.min.js"></script>
<script src="https://code.jquery.com/jquery-2.1.1.min.js"></script>
<script src="https://code.jquery.com/ui/1.11.1/jquery-ui.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css" rel="stylesheet" type="text/css">
</head>
<body ng-controller="ctrl">
<p>Welcome, {{user.google.displayName}}</p>
<button class="btn btn-lg btn-danger" id="Gbtn" ng-click="GoogleLogin()">
<i class="fa fa-google-plus-square fa-2x"></i>
Login with Google</button>
<table>
<tr class="item" ng-repeat="(id,item) in ideas| filter:user.google.id">
<td>{{item.idea}}</td>
</tr>
</table>
</body>
</html>
Javascript:
var app = angular.module("app", ["firebase"]);
app.constant("FBURL", "https://crowdfluttr.firebaseio.com/");
app.service("Ref", ["FBURL", Firebase]);
app.factory("Auth", ["$firebaseAuth", "Ref", function($firebaseAuth, Ref) {
return $firebaseAuth(Ref);
}]);
app.factory("Ideas", ["$firebase", "Ref", function($firebase, Ref) {
var childRef = Ref.child('ideas');
var lst = $firebase(childRef).$asArray();
return lst
}]);
app.controller("ctrl", ["$scope","$firebase","Ideas","Auth", function($scope,$firebase,Ideas,Auth) {
$scope.ideas = Ideas;
$scope.auth = Auth;
$scope.idea = "";
$scope.GoogleLogin = function () {
$scope.auth.$authWithOAuthPopup('google')()
};
}]);
app.run(["$rootScope", "Auth", function($rootScope, Auth) {
$rootScope.user = Auth.$getAuth();
}]);
I am new to both backbone and marionette.
Here is my current progress.
<!DOCTYPE html>
<html>
<head>
<title>Marionette composite view test</title>
<script src="./assets/libs/jquery.js"></script>
<script src="./assets/libs/bootstrap/js/bootstrap.js"></script>
<script src="./assets/libs/underscore.js"></script>
<script src="./assets/libs/backbone.js"></script>
<script src="./assets/libs/backbone.marionette.js"></script>
<link href="./assets/css/style.css" rel="stylesheet">
</head>
<body>
<div id="content"></div>
<script type="text/template" id="fDD">
<td><%= subtype %></td>
<td><%= acs_code %></td>
</script>
<script type="text/template" id="fD">
<caption><%= name %> ( <%= rollnum %> ), Project Code(<%= projectcode %>)</caption>
<thead>
<tr>
<th> Submission Type </th>
<th> Access number </th>
</tr>
</thead>
<tbody id="sub-Region">
</tbody>
</script>
<script type="text/javascript">
var data = {"name": "Mr XYZ", "rollnum": "53", "projectcode": "3526",
"submissions": [{"subtype": "A5", "acs_code": "5689-64123"},
{"subtype": "A8", "acs_code": "5689-64122"},
{"subtype": "D1", "acs_code": "5689-64122"},
{"subtype": "A5", "acs_code": "5689-64122"}]}
MyApp = new Backbone.Marionette.Application();
MyApp.addRegions({
mainRegion: "#content"
});
Submission = Backbone.Model.extend({});
Submissions = Backbone.Collection.extend({
model: Submission
});
SubmissionInfo = Backbone.Model.extend({});
MainInfo = Backbone.Collection.extend({
model: SubmissionInfo
});
FilingView = Backbone.Marionette.ItemView.extend({
tagName: "tr",
template: "#fDD"
});
TableView = Backbone.Marionette.CompositeView.extend({
tagName: "table",
itemView: FilingView,
template: "#fD",
itemViewContainer: "#sub-Region",
className: "table table-hover table-condensed"
});
AccordionView = Backbone.Marionette.CollectionView.extend({
itemView: TableView
});
MyApp.addInitializer(function(options){
var mainInfo = new MainInfo(options.data);
mainInfo.each(function(iinfo){
var ss = iinfo.get("submissions");
var sss = new Submissions({collection: ss});
iinfo.set("submissions", sss);
});
MyApp.mainRegion.show(new AccordionView({collection: mainInfo}));
});
MyApp.start({data: data});
</script>
</body>
</html>
I want to render a table in which i will show some info in its caption and other details as its rows. But only caption part is rendering while rows are missing. even that is without any error. How to solve this?? any better way to achieve this???
For above code; i am using:
Backbone.js 1.0.0
MarionetteJS v1.0.3
jQuery JavaScript Library v1.9.1
Underscore.js 1.4.4
there are some basic mistakes: how you should initialize a collection, the correct constructors of backbone objects, etc. Below is a working version of your code.
<script type="text/template" id="fDD">
<td><%= subtype %></td>
<td><%= acs_code %></td>
</script>
<script type="text/template" id="fD">
<caption><%= name %> ( <%= rollnum %> ), Project Code(<%= projectcode %>)</caption>
<thead>
<tr>
<th> Submission Type </th>
<th> Access number </th>
</tr>
</thead>
<tbody id="sub-Region">
</tbody>
</script>
<script type="text/javascript">
var data = {"name": "Mr XYZ", "rollnum": "53", "projectcode": "3526",
"submissions": [{"subtype": "A5", "acs_code": "5689-64123"},
{"subtype": "A8", "acs_code": "5689-64122"},
{"subtype": "D1", "acs_code": "5689-64122"},
{"subtype": "A5", "acs_code": "5689-64122"}]};
MyApp = new Backbone.Marionette.Application();
MyApp.addRegions({
mainRegion: "#content"
});
var Submission = Backbone.Model.extend({});
var SubmissionCollection = Backbone.Collection.extend({
model: Submission
});
var Project = Backbone.Model.extend({});
var FilingView = Backbone.Marionette.ItemView.extend({
tagName: "tr",
template: "#fDD"
});
var TableView = Backbone.Marionette.CompositeView.extend({
tagName: "table",
itemView: FilingView,
template: "#fD",
itemViewContainer: "#sub-Region",
className: "table table-hover table-condensed"
});
MyApp.addInitializer(function(options){
var projectInfo = new Project(options.data);
var submissions = new SubmissionCollection(projectInfo.get("submissions"));
MyApp.mainRegion.show(new TableView({model: projectInfo, collection: submissions}));
});
MyApp.start({data: data});
</script>
</body>
I am building a collection on Backbone.Marionette heavily basing myself on the example provided by David Sulc on his book 'A Gentle Introduction to Backbone.Marionette' available here https://github.com/davidsulc/marionette-gentle-introduction/commit/175fc9b7bddfa6fea86954eb769c0cfb3e163c1e.
for the moment i am still doing everything inline:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Marionette Contact Manager</title>
<link href="./css/bootstrap.css" rel="stylesheet">
<link href="./css/application.css" rel="stylesheet">
<link href="./css/jquery-ui-1.10.0.custom.css" rel="stylesheet">
</head>
<body>
<div class="navbar navbar-inverse navbar-fixed-top">
<div class="navbar-inner">
<div class="container">
<span class="brand">Secret Identities</span>
</div>
</div>
</div>
<div id="main-region" class="container">
//main area
</div>
<script type="text/template" id="contact-list-item">
<td> <%= lastName %></td><td> <%= firstName %> </td><td> <%= occupation %> </td>
</script>
<script type="text/template" id="contact-list">
<thead>
<tr>
<th>First Name</th>
<th>Last Name</th>
<th>Occupation</th>
</tr>
</thead>
<tbody>
</tbody>
</script>
<script src="./js/vendor/jquery.js"></script>
<script src="./js/vendor/json2.js"></script>
<script src="./js/vendor/underscore.js"></script>
<script src="./js/vendor/backbone.js"></script>
<script src="./js/vendor/backbone.marionette.js"></script>
<script type="text/javascript">
var Application = new Marionette.Application();
Application.addRegions({
mainRegion: "#main-region"
});
Application.Contact = Backbone.Model.extend({
urlRoot: "/rest/example/listHeroes"
});
Application.ContactCollection = Backbone.Collection.extend({
model: Application.Contact,
url: "/rest/example/listHeroes",
comparator: "firstName"
});
Application.ContactItemView = Marionette.ItemView.extend({
tagName: "tr",
template: "#contact-list-item"
});
Application.ContactsView = Marionette.CompositeView.extend({
tagName: "table",
className: "table table-hover",
template: "#contact-list",
itemView: Application.ContactItemView,
itemViewContainer: "tbody"
});
Application.on("initialize:after", function () {
var list = new Application.ContactCollection;
list.fetch();
var contactsView = new Application.ContactsView({
collection: list
});
Application.mainRegion.show(contactsView);
});
Application.start();
</script>
</body>
</html>
</body>
</html>
the Json Array returned by the rest get is
[{"firstName":"Bruce","lastName":"Wayne","occupation":"Industrialist"},{"firstName":"Steve","lastName":"Rogers","occupation":"Soldier"},{"firstName":"Natasha","lastName":"Romanov","occupation":"spy"},{"firstName":"Clark","lastName":"Kent","occupation":"Reporter"},{"firstName":"Hal","lastName":"Jordan","occupation":"Pilot"}]
Any help would be greatly appreciated.
I figured it out. Looks like a Backbone bug.
When you add the items to the collection it calls Collection.set which first puts all the fetched elements in an array called toAdd. Then it adds from the toAdd collection to the internal models collection but then it triggers the events on the toAdd collection! Therefore the "add" events are triggered in the same order as you received them from the server.
https://github.com/jashkenas/backbone/blob/master/backbone.js#L733
Marionette hooks to the "add" event so it can render the elements and therefore they are rendered in the same order of the toAdd collection which is the order you receive from the server.
So to fix the issue you can pass {reset: true} in the options of the fetch call:
http://backbonejs.org/#Collection-fetch
Thanks,
Boris
Edit: I don't think this is a Backbone bug, I think this is intentional for performance.
Not sure if only writing the model field name as comparator would help. Instead you can write a custom function in comparator something like below:
comparator : function (m1, m2) {
var str1, str2;
str1 = m1.get('firstName');
str2 = m2.get('firstName');
if (str1 && str2) {
str1 = str1.toLowerCase();
str2 = str2.toLowerCase();
if (str1 > str2) {
return 1;
} else if(str2 > str1) {
return -1;
}
}
}
This would sort your collection every time you add/remove a model to the collection or call the collections sort method
any one help me to find our the issue, what is going on with my code..
i am getting the error as :
Uncaught SyntaxError: Unexpected token <
my code is here :
$(function() {
var userDetails=[
{firstName:'Lakshmi', lastName:'Narayanan',age:32},
{firstName:'Harish', lastName:'Manickam',age:28},
{firstName:'Madan', lastName:'Gopal',age:27}
]
var userModel = Backbone.Model.extend({
defaults:{
firstName:"",
lastName:"",
age:""
}
});
var userList = Backbone.Collection.extend({
model:userModel
});
var userView = Backbone.View.extend({
tagName:"tr",
className:"userList",
template: $("#listTempalate").html(),
render:function(){
var temp = _.template(this.template);
this.$el.html(temp(this.model.toJSON()));
return this;
}
});
var usersView = Backbone.View.extend({
el:"tbody",
initialize:function(){
this.collection = new userList(userDetails);
this.render();
},
render:function(){
var that = this;
_.each(this.collection.models, function(item){
that.$el.append(new userView({model:item}).render().el);
})
}
});
var Router = Backbone.Router.extend({
routes:{
'' : 'home'
}
});
var router = new Router();
router.on('route:home', function(){
var defaultUser = new usersView();
})
Backbone.history.start();
});
my HTML :
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=Edge,Chrome=1" />
<meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1">
<title>User Manager</title>
<link href="//netdna.bootstrapcdn.com/twitter-bootstrap/2.3.1/css/bootstrap-combined.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
<h1>User Manager</h1>
<hr>
<div class="page">
<table class="table striped">
<thead>
<tr>
<th>First Name</th>
<th>Last Name</th>
<th>Age</th>
<th>Edit</th>
</tr>
</thead>
<tbody id="insertRows">
</tbody>
</table>
</div>
</div>
<script id="listTempalate" type="text/template">
<td><%= firstName %></td>
<td><%= lastName %></td>
<td><%= age %></td>
<td><%= <a hre="#/edit/<%= user.id %>" class="btn">Edit</a></td>
</script>
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.4.4/underscore-min.js"></script>
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/backbone.js/1.0.0/backbone-min.js"></script>
<script type="text/javascript" src="js/userManager.js"></script>
</body>
</html>
Seriously i unable to find my issue here to fix it. as well any one suggest me to find the issue for backbone.js online..
so let me keep check my code..
Thanks in advance..
Pretty sure it is to do with this line in your HTML
<td><%= <a hre="#/edit/<%= user.id %>" class="btn">Edit</a></td>
You open the <%= and then open it again /edit/<%= which I think is causing the problem. Even if opening it twice is allowed, you haven't added a final %> to the line.
Play around with that and let us know how it goes.
EDIT
Try this instead
<td> Edit</td>
You shouldn't need to wrap the entire thing in the <% and %> tags, just the part you want to output.