Php Driver: documentation inconsistensy, undefined method and admingo not working

[diegomsana]

Ok, looks like i'm quickly becoming the most annoying user in this
forum :)

Playing with the php driver, i run into a few issues you may be aware
of, but anyway i'll report them here:

- All tutoriais in the php language center mentions i have to include
"mongo.php" file to call Mongo class methods. I guess this was
necessary in older versions but it's not now, since Mongo classes are
linked to php library. However, two classes which are not documented
at php.net/mongo (MongoAuth and MongoAdmin) still come in files i need
to place in the include path. You could do with these two classes what
you did to the others or clarify this in your documentation.

- I've downloaded Admingo but couldn't get it working "out of the
box", because the avaiable version still requires "mongo.php" and
doesn't include the files for MongoAuth/MongoAdmin classes. So i've
edited the source to fix this but then run into another problem: php
says method MongoUtil::dbcommand() is undefined. I double checked
that using the method_exists() function, which returns false for that
method. Guess this is a bug you need to fix.

- This one is a minor bug and it's not php-driver related: in the
mongo shell, typing "show users" as instructed by the help command
does not show the users in the current database. db.system.users.find
() does work though.

That's all.

[Kristina Chodorow]

Ok, looks like i'm quickly becoming the most annoying user in this
forum :)

Not at all.  Thanks for letting me know, I lose track of all the stuff that needs updating!
 

- All tutoriais in the php language center mentions i have to include
"mongo.php" file to call Mongo class methods. 

Fixed the "Mongo.php" references in the tutorials.  I'll add some information about putting Admin.php and Auth.php on the include path. 

- I've downloaded Admingo but couldn't get it working "out of the
box", because the avaiable version still requires "mongo.php" and
doesn't include the files for MongoAuth/MongoAdmin  classes. 

I haven't worked on Admingo in a long while, I'd actually be surprised if that was the only thing wrong with it.  It will probably just be easier to use the database's web interface (localhost:28017 by default).

dbCommand very recently changed MongoDB::command().  Unfortunately, there is a delay on the PHP manual getting updated, so it's still there under MongoUtil.

- This one is a minor bug and it's not php-driver related: in the
mongo shell, typing "show users"  as instructed by the help command
does not show the users in the current database. db.system.users.find
() does work though.

 

I've filed a bug at http://jira.mongodb.org/browse/SERVER-87.

[diegomsana]

Kristina,

I believe i've found another bug. When retrieving documents that
constains arrays of integers, php driver display crazy values for
those integers. This is the code i used to generate some random
integers and save into a document:

<?
$connection = new Mongo();
$db = $connection->selectDB("test");

$users = array ();
$keys = array ();

$collection = $db->selectCollection("integers");

for ($i = 0; $i < 10; $i++)
{
$u = mt_rand(0, 10000);
$users[] = $u;
}
$collection->insert(array("users"=>$users));

var_dump($collection->findOne());
?>

The var_dump() call in the last line outputs:
array(2) { ["_id"]=> object(MongoId)#7 (0) { } ["users"]=> array(10)
{ [0]=> int(140071768428512) [1]=> int(140071768432108) [2]=> int
(140071768429558) [3]=> int(140071768429072) [4]=> int
(140071768434267) [5]=> int(140071768429153) [6]=> int
(140071768425764) [7]=> int(140071768430107) [8]=> int
(140071768429055) [9]=> int(140071768431405) } }

However, a "db.integers.find()" on shell returns: {"_id" :
"4a284b5e674c3b197d373a73" , "users" :
[4064,7660,5110,4624,9819,4705,1316,5659,4607,6957]} which is the
expected values.

Using php 5.2.9 and driver 0.9.1 installed from pecl.

[Kristina Chodorow]

I'm pretty sure that this has been fixed already.  Could you pull from http://github.com/mongodb/mongo-php-driver and try it again?

[diegomsana]

Yes, it works now.

On 4 jun, 19:53, Kristina Chodorow <krist...@10gen.com> wrote:
> I'm pretty sure that this has been fixed already.  Could you pull fromhttp://github.com/mongodb/mongo-php-driverand try it again?

[Kristina Chodorow]

Great!  Sorry for the inconvenience.

[diegomsana]

No problem. Another quick question:

how do i issue an update using the $push modifier, is it implemented?

In mongo shell i'd do this: db.tags.u5144.update({_id:"howhose"},
{ $push : { posts: 400 } })

Could not figure out how to this through php.

On 4 jun, 20:10, Kristina Chodorow <krist...@10gen.com> wrote:
> Great!  Sorry for the inconvenience.
>

> On Thu, Jun 4, 2009 at 7:09 PM, diegomsana <diegodms...@gmail.com> wrote:
>
> > Yes, it works now.
>
> > On 4 jun, 19:53, Kristina Chodorow <krist...@10gen.com> wrote:
> > > I'm pretty sure that this has been fixed already.  Could you pull

> > fromhttp://github.com/mongodb/mongo-php-driverandtry it again?

[Kristina Chodorow]

$push will work, but only if you have at least one element in the array to start out with.

Works:

$u5144->insert(array('_id' => "howhose", 'posts' => array(300)));
$u5144->update(array('_id'  => "howhose"), array( '$push' => array( 'posts' => 400 )));

Doesn't work:

$u5144->insert(array('_id' => "howhose", 'posts' => array()));
$u5144->update(array('_id'  => "howhose"), array( '$push' => array( 'posts' => 400 )));

The problem is, the database has an array type and an object type, which are only distinguished by the object type being allowed to have non-numeric keys.  As both of these types are represented by array() in PHP, the PHP driver takes a guess at which type you wanted.  For an empty array, it defaults to the database's object type, which you can't use $push with.

We're working on fixing this.

[Wouter]

Any status update on this one?

You could always add a MongoEmptyArray object to the driver right?
Just anything that indicates an empty array will do I guess?!

Or you could create a MongoArray object, that implements Iterator /
ArrayAccess / Countable and denies all non-numeric keys, but that's a
lot more work :-).

> > > > fromhttp://github.com/mongodb/mongo-php-driverandtryit again?

[Kristina Chodorow]

If you get the latest driver code, you can use MongoEmptyObj to insert
an object and array() to insert an empty array.

See http://us3.php.net/manual/en/class.mongoemptyobj.php.

So,

$u5144->insert(array('_id' => "howhose", 'posts' => array()));
$u5144->update(array('_id' => "howhose"), array( '$push' => array(
'posts' => 400 )));

should now work.

[Wouter]

Great! Thanks!

On 10 jul, 15:48, Kristina Chodorow <krist...@10gen.com> wrote:
> If you get the latest driver code, you can use MongoEmptyObj to insert
> an object and array() to insert an empty array.
>

> Seehttp://us3.php.net/manual/en/class.mongoemptyobj.php.