Leanpub Header

Skip to main content

Symfony Framework Deepdive - Doctrine

Interested in this book? Show your support by saying what you'd like to pay for it!

$
PDF
EPUB
About

About

About the Book

This is the fourth part of the Symfony framework rainbow series. A collection of books that dives deep into the different components that make up the Symfony framework. Each rainbow book consist of 2 parts: a deep dive into the components itself, and recipies on how to solve common problems focussed around the component.

In this book we dive directly into Doctrine, the default ORM (object relational mapper).

Why does Symfony needs Doctrine even when we aren't using the ORM? What are proxy classes, units-of-work, and how does Doctrine generate correct SQL statements in order to load or save your entities? We will dive into ArrayCollections, SQL Filters, Criterias and much more..

Share this book

Author

About the Author

Joshua Thijssen

Joshua Thijssen is a freelance consultant and trainer. His daily work consists of maintaining code bases, working on different projects and helping other to achieve higher standards in both coding and thinking. He is the author of the PHP|Architect book "Mastering the SPL library", founder of the Dutch Web Alliance and regular speaker at national and international conferences.

The Leanpub 60 Day 100% Happiness Guarantee

Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.

Now, this is technically risky for us, since you'll have the book or course files either way. But we're so confident in our products and services, and in our authors and readers, that we're happy to offer a full money back guarantee for everything we sell.

You can only find out how good something is by trying it, and because of our 100% money back guarantee there's literally no risk to do so!

So, there's no reason not to click the Add to Cart button, is there?

See full terms...

Earn $8 on a $10 Purchase, and $16 on a $20 Purchase

We pay 80% royalties on purchases of $7.99 or more, and 80% royalties minus a 50 cent flat fee on purchases between $0.99 and $7.98. You earn $8 on a $10 sale, and $16 on a $20 sale. So, if we sell 5000 non-refunded copies of your book for $20, you'll earn $80,000.

(Yes, some authors have already earned much more than that on Leanpub.)

In fact, authors have earned over $15 million writing, publishing and selling on Leanpub.

Learn more about writing on Leanpub

Free Updates. DRM Free.

If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).

Most Leanpub books are available in PDF (for computers) and EPUB (for phones, tablets and Kindle). The formats that a book includes are shown at the top right corner of this page.

Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.

Learn more about Leanpub's ebook formats and where to read them

Write and Publish on Leanpub

You can use Leanpub to easily write, publish and sell in-progress and completed ebooks and online courses!

Leanpub is a powerful platform for serious authors, combining a simple, elegant writing and publishing workflow with a store focused on selling in-progress ebooks.

Leanpub is a magical typewriter for authors: just write in plain text, and to publish your ebook, just click a button. (Or, if you are producing your ebook your own way, you can even upload your own PDF and/or EPUB files and then publish with one click!) It really is that easy.

Learn more about writing on Leanpub