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Merge pull request #11 from odino/master

New article for the OrientDB ODM
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86 pages/source/blog/doctrine-orientdb-odm.rst
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+:author: odino <alessandro.nadalin@gmail.com>
+:date: 2012-12-28 11:59:00
+
+========================================
+Doctrine OrientDB Object Document Mapper
+========================================
+
+"2012 is the year of graph databases" was the
+sentence that a lot of people were hearing at the
+end of 2011, especially after the explosion of
+Big Data associated with social networks.
+
+At the beginning of this year, a really promising
+GraphDB, `OrientDB <http://orientdb.org>`,
+saw its first stable release (1.0.0) which finally
+gave to the world a stable toy pretty different
+from the traditional RDBMS that we're used to see
+and from the document-based DBs like MongoDB or
+CouchDB: OrientDB integrates document capabilities
+with a graph layer, thus it sounded very, very
+interesting.
+
+Even before going stable, there were some companies
+already using OrientDB, thanks to the language-specific
+drivers created by the community surrounding this GraphDB:
+one of them, for PHP, was `Orient <http://github.com/congow/Orient>`,
+a bunch of classes that wrapped PHP's native cURL functions
+to make queries against OrientDB's via the HTTP protocol.
+
+Day after day, the guys behind Orient, this PHP library,
+decided to add - mostly inspired by the doctrine 1 query
+builder and the Doctrine2 ODMs - abstraction and layers over
+that bunch of classes, finally having 3 different pieces of
+software to interact with OrientDB from PHP: the HTTP binding,
+which does HTTP calls to the OrientDB server, the Query Builder,
+which provides an object-oriented synthax to write SQL+
+(OrientDB's SQL) queries and the Data Mapper, which is still
+unfinished.
+
+Trying to adhere to the Doctrine2 ODMs standards, the code looks
+pretty similar:
+
+::
+
+ [php]
+ // invoking a repository
+ $userRepository = $manager->getRepository('My\Entity');
+
+ // creating SQL+ queries
+ $query = new Query();
+ $query->from(array('users'))->where('username = ?', "admin");
+
+ // mapping POPOs
+ namespace Domain;
+
+ use Doctrine\ODM\OrientDB\Mapper\Annotations as ODM;
+
+ /**
+ * @ODM\Document(class="Address")
+ */
+ class Address
+ {
+ /**
+ * @ODM\Property(type="string")
+ */
+ public $street;
+ }
+
+ // finding a record
+ $record = $manager->find($id);
+
+
+The work done so far was interesting enough to think about
+an OrientDB ODM inside the Doctrine organization, thing that
+eventually happened today when the old repository has been
+moved to the `doctrine organization <https://github.com/doctrine/orientdb-odm>`
+on Github.
+
+More news are going to come in the next weeks, as the target is to
+release a stable version of the OrientDB ODM this year: you can
+already `use it <https://packagist.org/packages/doctrine/orientdb-odm>`
+or even `fork it <https://github.com/doctrine/orientdb-odm>` if you want
+to contribute or propose a patch.
+
+For further informations you can subscribe to the doctrine-dev
+google group or join the IRC channel #doctrine-dev on Freenode.
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