Fixed a bug with the updater.
This commit is contained in:
Elf M. Sternberg
parent
e7625991a1
commit
58c3d50bce
2
Makefile
2
Makefile
|
|
@ -39,7 +39,7 @@ store.js: backbonestore.nw
|
|||
rm $*.nw-tmp; \
|
||||
fi
|
||||
|
||||
index.html:
|
||||
index.html: backbonestore.nw
|
||||
@ $(ECHO) $(NOTANGLE) -c -R$@ $<
|
||||
@ - $(NOTANGLE) -c -R$@ $< > $*.nw-html-tmp
|
||||
@ if [ -s "$*.nw-html-tmp" ]; then \
|
||||
|
|
|
|||
|
|
@ -144,9 +144,11 @@ Also, it would be nice to know the total price of the Item.
|
|||
<<cart models>>=
|
||||
var Item = Backbone.Model.extend({
|
||||
update: function(amount) {
|
||||
this.set({'quantity': amount});
|
||||
this.set({'quantity': amount}, {silent: true});
|
||||
this.collection.trigger('change', this);
|
||||
},
|
||||
price: function() {
|
||||
console.log(this.get('product').get('title'), this.get('quantity'));
|
||||
return this.get('product').get('price') * this.get('quantity');
|
||||
}
|
||||
});
|
||||
|
|
@ -236,7 +238,7 @@ and remove tabs from the top of the viewport as needed.
|
|||
|
||||
<<base view>>=
|
||||
var _BaseView = Backbone.View.extend({
|
||||
parent: '#main',
|
||||
parent: $('#main'),
|
||||
className: 'viewport',
|
||||
|
||||
@
|
||||
|
|
@ -313,8 +315,8 @@ for our one-page application:
|
|||
</title>
|
||||
<link rel="stylesheet" href="jsonstore.css" type="text/css">
|
||||
<<product list template>>
|
||||
<<product template>>
|
||||
<<checkout template>>
|
||||
<<product detail template>>
|
||||
<<cart template>>
|
||||
</head>
|
||||
<body>
|
||||
<div id="container">
|
||||
|
|
@ -398,10 +400,10 @@ And here is the HTML:
|
|||
<img alt="<%= p.title %>" src="<%= p.image %>" />
|
||||
</a>
|
||||
</div>
|
||||
</li>
|
||||
<div class="item-artist"><%= p.artist %></div>
|
||||
<div class="item-title"><%= p.title %></div>
|
||||
<div class="item-price">$<%= p.price %></div>
|
||||
</li>
|
||||
<% } %>
|
||||
</ul>
|
||||
</script>
|
||||
|
|
@ -467,12 +469,20 @@ get its id and so forth. All of that has been put into the shopping
|
|||
cart model, which is where it belongs: \textit{knowledge about items
|
||||
and each item's relationship to its collection belongs in the
|
||||
collection}.
|
||||
|
||||
Look closely at the [[update()]] method. The reference [[this.\$]] is
|
||||
a special Backbone object that limits selectors to objects inside the
|
||||
element of the view. Without it, jQuery would have found the first
|
||||
input field of class 'uqf' in the DOM, not the one for this specific
|
||||
view. [[this.\$('.uqf')]] is shorthand for [[$('uqf', this.el)]], and
|
||||
helps clarify what it is you're looking for.
|
||||
|
||||
%'
|
||||
|
||||
<<product detail view>>=
|
||||
update: function(e) {
|
||||
e.preventDefault();
|
||||
this.item.update(parseInt($('.uqf').val()));
|
||||
this.item.update(parseInt(this.$('.uqf').val()));
|
||||
},
|
||||
|
||||
updateOnEnter: function(e) {
|
||||
|
|
@ -722,6 +732,8 @@ Here's the entirety of the program:
|
|||
|
||||
<<product detail view>>
|
||||
|
||||
<<cart widget>>
|
||||
|
||||
<<router>>
|
||||
|
||||
<<initialization>>
|
||||
|
|
|
|||
24
index.html
24
index.html
|
|
@ -1,9 +1,10 @@
|
|||
<!DOCTYPE html>
|
||||
<html xmlns="http://www.w3.org/1999/xhtml">
|
||||
<head>
|
||||
<title>The Backbone Store</title>
|
||||
<link charset="utf-8" href="jsonstore.css" rel="stylesheet" type="text/css" />
|
||||
|
||||
<title>
|
||||
The Backbone Store
|
||||
</title>
|
||||
<link rel="stylesheet" href="jsonstore.css" type="text/css">
|
||||
<script id="store_index_template" type="text/x-underscore-tmplate">
|
||||
<h1>Product Catalog</h1>
|
||||
<ul>
|
||||
|
|
@ -14,24 +15,23 @@
|
|||
<img alt="<%= p.title %>" src="<%= p.image %>" />
|
||||
</a>
|
||||
</div>
|
||||
</li>
|
||||
<div class="item-artist"><%= p.artist %></div>
|
||||
<div class="item-title"><%= p.title %></div>
|
||||
<div class="item-price">$<%= p.price %></div>
|
||||
</li>
|
||||
<% } %>
|
||||
</ul>
|
||||
</script>
|
||||
|
||||
<script id="store_item_template" type="text/x-underscore-template">
|
||||
<div class="item-detail"></div>
|
||||
<div class="item-detail">
|
||||
<div class="item-image">
|
||||
<img alt="<%= title %>" src="<%= large_image %>" />
|
||||
</div>
|
||||
<div class="item-info"></div>
|
||||
</div>
|
||||
<div class="item-info">
|
||||
<div class="item-artist"><%= artist %></div>
|
||||
<div class="item-title"><%= title %></div>
|
||||
<div class="item-price">$<%= price %></div>
|
||||
<div class="item-form"></div>
|
||||
<form action="#/cart" method="post">
|
||||
<p>
|
||||
<label>Quantity:</label>
|
||||
|
|
@ -47,22 +47,24 @@
|
|||
<div class="back-link">
|
||||
<a href="#">« Back to Items</a>
|
||||
</div>
|
||||
</div>
|
||||
</script>
|
||||
|
||||
<script id="store_cart_template" type="text/x-underscore-template">
|
||||
<p>Items: <%= count %> ($<%= cost %>)</p>
|
||||
</script>
|
||||
|
||||
</head>
|
||||
|
||||
<body>
|
||||
<div id="container">
|
||||
<div id="header">
|
||||
<h1>
|
||||
The Backbone Store
|
||||
</h1>
|
||||
<div class="cart-info"></div>
|
||||
|
||||
<div class="cart-info">
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<div id="main"> </div>
|
||||
</div>
|
||||
<script src="jquery-1.6.2.min.js" type="text/javascript"></script>
|
||||
|
|
|
|||
|
|
@ -33,12 +33,17 @@ body {
|
|||
img {
|
||||
border: 0;
|
||||
}
|
||||
#productlistview ul {
|
||||
list-style: none;
|
||||
}
|
||||
|
||||
.item {
|
||||
display: border;
|
||||
float:left;
|
||||
width: 250px;
|
||||
margin-right: 3px;
|
||||
padding: 2px;
|
||||
margin-right: 10px;
|
||||
margin-bottom: 10px;
|
||||
padding: 10px;
|
||||
border: 1px solid #ccc;
|
||||
text-align:center;
|
||||
font-size: 12px;
|
||||
|
|
|
|||
34
store.js
34
store.js
|
|
@ -16,12 +16,18 @@
|
|||
|
||||
var Item = Backbone.Model.extend({
|
||||
update: function(amount) {
|
||||
this.set({'quantity': this.get('quantity') + amount});
|
||||
this.set({'quantity': amount}, {silent: true});
|
||||
this.collection.trigger('change', this);
|
||||
},
|
||||
price: function() {
|
||||
console.log(this.get('product').get('title'), this.get('quantity'));
|
||||
return this.get('product').get('price') * this.get('quantity');
|
||||
}
|
||||
});
|
||||
|
||||
var ItemCollection = Backbone.Collection.extend({
|
||||
model: Item,
|
||||
|
||||
getOrCreateItemForProduct: function(product) {
|
||||
var i,
|
||||
pid = product.get('id'),
|
||||
|
|
@ -35,18 +41,19 @@
|
|||
this.add(i, {silent: true})
|
||||
return i;
|
||||
},
|
||||
|
||||
getTotalCount: function() {
|
||||
return this.reduce(function(memo, obj) {
|
||||
return obj.get('quantity') + memo; }, 0);
|
||||
},
|
||||
|
||||
getTotalCost: function() {
|
||||
return this.reduce(function(memo, obj) {
|
||||
return (obj.get('product').get('price') *
|
||||
obj.get('quantity')) + memo; }, 0);
|
||||
|
||||
return obj.price() + memo; }, 0);
|
||||
}
|
||||
});
|
||||
|
||||
|
||||
var _BaseView = Backbone.View.extend({
|
||||
parent: $('#main'),
|
||||
className: 'viewport',
|
||||
|
|
@ -63,9 +70,8 @@
|
|||
return null;
|
||||
}
|
||||
promise = $.Deferred(_.bind(function(dfd) {
|
||||
this.el.fadeOut('fast', dfd.resolve)}, this)).promise();
|
||||
this.trigger('hide', this);
|
||||
return promise;
|
||||
this.el.fadeOut('fast', dfd.resolve)}, this));
|
||||
return promise.promise();
|
||||
},
|
||||
|
||||
show: function() {
|
||||
|
|
@ -73,13 +79,12 @@
|
|||
return;
|
||||
}
|
||||
promise = $.Deferred(_.bind(function(dfd) {
|
||||
this.el.fadeIn('fast', dfd.resolve) }, this)).promise();
|
||||
|
||||
this.trigger('show', this);
|
||||
return promise;
|
||||
this.el.fadeIn('fast', dfd.resolve) }, this))
|
||||
return promise.promise();
|
||||
}
|
||||
});
|
||||
|
||||
|
||||
var ProductListView = _BaseView.extend({
|
||||
id: 'productlistview',
|
||||
template: $("#store_index_template").html(),
|
||||
|
|
@ -96,6 +101,7 @@
|
|||
}
|
||||
});
|
||||
|
||||
|
||||
var ProductView = _BaseView.extend({
|
||||
id: 'productitemview',
|
||||
template: $("#store_item_template").html(),
|
||||
|
|
@ -113,7 +119,7 @@
|
|||
|
||||
update: function(e) {
|
||||
e.preventDefault();
|
||||
this.item.update(parseInt($('.uqf').val()));
|
||||
this.item.update(parseInt(this.$('.uqf').val()));
|
||||
},
|
||||
|
||||
updateOnEnter: function(e) {
|
||||
|
|
@ -128,6 +134,7 @@
|
|||
}
|
||||
});
|
||||
|
||||
|
||||
var CartWidget = Backbone.View.extend({
|
||||
el: $('.cart-info'),
|
||||
template: $('#store_cart_template').html(),
|
||||
|
|
@ -137,7 +144,6 @@
|
|||
},
|
||||
|
||||
render: function() {
|
||||
console.log(arguments);
|
||||
this.el.html(
|
||||
_.template(this.template, {
|
||||
'count': this.collection.getTotalCount(),
|
||||
|
|
@ -147,6 +153,7 @@
|
|||
}
|
||||
});
|
||||
|
||||
|
||||
var BackboneStore = Backbone.Router.extend({
|
||||
views: {},
|
||||
products: null,
|
||||
|
|
@ -200,4 +207,5 @@
|
|||
new BackboneStore();
|
||||
Backbone.history.start();
|
||||
});
|
||||
|
||||
}).call(this);
|
||||
|
|
|
|||
Loading…
Reference in New Issue