1. PostgreSQL
MongoDB
CTO
@basuke

2. not only
but also

4. http://www.assiston.co.jp/
•
• ~1000
• 30~80 PV

5. •
•
•
• Google

6. •
•
•
•

7. MongoDB
( )

9. • PostgreSQL 7.4 => 8.1
• PHP 4.3 => 4.4 => 5.1
•

10. • MongoDB 1.6.3
• PHP 5.3
• Lithium
•
•

12. Lithium
• http://lithify.me/
• 5.3
• CakePHP
• MongoDB / CouchDB
• ↑ RDB w

13. PHP MongoDB
• Lithium
• pecl mongo
•

14. Item::find('all', array(
'conditions' => array(
'category' => $tag,
'visible' => true,
),
'order' => array(
'position'=>'DESC', 'id' => 'DESC'),
));

15. $item_collection->find(array(
'category' => $tag,
'visible' => true,
)).sort(array(
'position'=>-1, 'id' => -1),
));

16. • mongoimport / mongoexport
• JSON
• JSON
• PHP
•
•

17. • mongoimport -d assiston -c items --drop --file
items.dump
{"no" : 123456, "items" : [{"at" : 1285679232000}}

18. Mongo Extended JSON
• http://www.mongodb.org/display/DOCS/Mongo
+Extended+JSON
• $binary, $date, $oid
• $date milliseconds
• PHP 32bit int

19. •
• PHP JSON
• TIMESTAMP json_encode
• '2010-12-10 17:20:21' => 1291969221
• 1291969221 sec => "||date:1291969221000||"
• JSON
• "||date:1291969221000||" => Date(1291969221000)

20. • PHP w
• Python OK
• pgmongo

21. 1: atomic
•
•
•
•

22. CREATE TABLE ORDERS (
id SERIAL PRIMARY KEY,
total INTEGER NOT NULL, {
... no: integer,
); total: integer,
items: [
CREATE TABLE ORDER_ITEMS ( { price: integer, ...},
id SERIAL PRIMARY KEY,
]
order_id INTEGER
...
REFERS TO ORDERS,
}
price INTEGER NOT NULL,
...
);

23. 2:
• ObjectID
•
• function(seqname) { return
db.sequences.findAndModify({ query:{_id:seqname},
update: {$inc: {val:1}}, upsert: true, 'new': true}).val; }
• db.system.js
• db.eval("return sequence('abc')")

24. 3: mongo on github
• https://github.com/mongodb/mongo/tree/
master/jstests
• MongoDB JavaScript

25. Thank you.
http://basuke.com/