Quick ref: Let’s say you have 2 Entities, one is called Author and the other Book, one author can have many books, and one book can have many Authors, you will need a ManyToMany association. So in your Author Entity class you put this annotation:
–The Annotation:
#Inside the Author.php class
/**
* @orm:ManyToMany(targetEntity="Book", cascade={"persist"})
*/
private $book; //this will contain a Collection of many Book objects
– Database Creation & Stub Methods auto-generation
That’s it, now, according to the default behaviour, after executing this (which creates the tables):
php app/console doctrine:schema:create
Your database will now have (in this example) 3 tables, one named author, book and one called author_book. This last table is the one that will store the relation between author and book. Now you need to auto-generate the stub methods:
php app/console doctrine:generate:entities YourAppYourBundle
After that, you will have a method called addBook and getBook, and if you look at the source code, you will see that the book property is a collection of Book entities. This will also rename your original classes and prefix them with a ~ sign. You can delete this fiels after creation of the final classes, if not, you will get a “cant redeclare class” bullshit when calling generate entities again.
–Example
Now, if you can (this code you can test it inside a controller’s action):
$em = $this->get("doctrine.orm.entity_manager");
$book1= new Book();
$book1->setName("The Naked Sun");
$book2 = new Book();
$book2->setName("The Robots of Dawn");
$author = new Author();
$author->setName("Isaac Asimov");
$author->addBook($book1);
$author->addBook($book2);
// Saving the author ( this will also save the Books, because of the "cascade={'persist'}" attribute on the annotation)
$em->persist(author); //<- Note how we only save the author! Doctrine then makes all the dirty work for us!
$em->flush();
Now, when retrieving the author a property called ->getBook() will give you a Collection of Book objects:
$issac_asimov = $em->find('YourAppYourBundle:User', 1);
$issac_asimov->getBook(); //this will have all the books from this author.
PS: the $em->find method internally calls the default EntityRepository for the entity if no custom was defined on the annotations, which in turn returns an User entity based on the id: 1
Rich are discussing. 
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Rich 3:03 PM on 10 June 2011 Permalink |
And can you believe it’s already Beta 4? Thanks for the blog man. We need more SF2 resources!
phicheth 4:46 PM on 9 September 2011 Permalink |
doSymfony2.0.1-20110909 Ready Edition is a full repo package include all vendors including in symfony 2.0.1 standard edition. Ready Edition – No git request. all you need already include in pack. Accept share hosting, VPS or your own server.
Detail of work:
remove ‘/web/’ folder with edit vendors file. can run on share hosting without any issue from remove ‘/web/’ folder.
update all vendors via git to build a package. you can use git update symfony with ‘ php bin/vendors install ‘ anytime you wanted. to update to new version you must replace ‘deps’ and ‘deps.lock’ files before update new version of Symfony2
all feature, API and docs please follow from http://www.symfony.com
Download : http://code.google.com/p/dohew-opensource/
This is Symfony2 package include all vendors needed ***
This package update by Phicheth Kijtaow @doHew Media!