Book Image

SproutCore Web Application Development

By : Tyler Keating
Book Image

SproutCore Web Application Development

By: Tyler Keating

Overview of this book

SproutCore is a framework that exists to allow developers to deliver on the promise of the Web with more than just simple attractive demos, but with complex software and remarkable user experiences. SproutCore’s creators recognized early on that developing real web software requires the same software development tools and practices that have evolved over decades in the native software field and thus SproutCore brings these to the Web. SproutCore Web Application Development is more than just a guide to one of the largest and most powerful web application frameworks out there, it’s also a guide to writing genre defining web applications and solving the unique problems that the web platform creates. Containing the results of thousands of hours of software development experience, this book is invaluable for anyone already writing software for the Web or just starting out. SproutCore Web Application Development comprises of three sections. In the first section we introduce SproutCore and walk through a simple SproutCore application. From there, we look in detail at all of the main components of the framework before finally working through a rigorous real-world example from start to finish. Learning about SproutCore means learning about writing software for the Web. In this book, you will not only learn what sets SproutCore apart from other web libraries and frameworks, you will also learn about solving the difficult challenges that web development poses. We will look at all the components of an application and how to translate wireframes, mocks, and design descriptions into clean, efficient, and maintainable code using MVC, data adaptors, statecharts, and more. We will look at SproutCore’s powerful binding and observing and watch how changes propagate across our app effortlessly and magically with very little code. By the time you complete SproutCore Web Application Development, you’ll be ready to develop your own application that redefines what it means to be a web application.
Table of Contents (13 chapters)
SproutCore Web Application Development
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Querying the store


Before we look at synchronizing data with a remote source, we do have to catch up on how to use the queries that we briefly saw when we introduced find. Firstly, there are two types of queries: local and remote. I'll warn you now not to get hung up on the names; using both types of queries may invoke a fetch to a remote data source. The difference is that the content and order of local queries is updated live depending on the current records in the local store, while the content and order of remote queries is set by the remote data source and can only be updated by requesting from the remote data source again.

Why have this distinction? It's simple. If you have 5,000,000 records on your server, you don't want to load them all into your application in order to perform a search for just 10 of them. Therefore, when the results of the query depend on a set of data too large to be loaded entirely into the client store, we use remote queries. When the query is based on what is...