Yii - CGridview performance issue - memcached

Hello fellow developers,
I am currently running into severe delays when updating CGridview using an ajax button call (or a normal redirect or refresh), I can tell using firebug's console that the request itself takes about 399 MS which is not bad, but it goes down hill when the CGridview is updated, I'm talking about 3941 MS (or 4.3 sec) just to update the view, which to me is pretty terrible!
All Yii required extensions (such as Memcache, PDO MySQL and APC) are enabled. I also refered to using the caching method to solve this by adding :
$dependency = new CDbCacheDependency('SELECT MAX(lu_date) FROM {{issues}}');
return new CActiveDataProvider(Issue::model()->cache(3600, $dependency, 4), array(
'criteria' => $criteria,
'pagination' => array('pageSize' => 20,
),
'sort' => array('defaultOrder' => 'c_date DESC')
));
Unfortunately no improvements took place,
Note the I currently have more than 5 relations implemented and called in the CGridview using lazy loading. Can this be the issue in place?
My current server is LAMP - Linux based
Thank you for taking the time to read this, any advices or opinions are greatly welcomed :)

Because you have 5 relations you are making 1+5*20 = 101 queries with lazy loading.
You should try eager loading:
Issue::model()->with('relation1', 'relation2', 'deep.relation3')

Related

Symfony 2 form in eZ Publish 5, CSRF intuition

I'm working on a eZ publish 5 project. This CMS is based on symfony 2.
I have built a form without class as described in tge page : http://symfony.com/doc/current/book/forms.html#using-a-form-without-a-class
On the eZ publish 5 documentation (https://confluence.ez.no/display/EZP/Legacy+configuration+injection) I read that I need to set the CSRF intention parameter to 'legacy'. I can't figure how to do this. I tried to use the add method on my formBuilder :
$this->createFormBuilder()->add('_token', 'csrf', array('intention'=>'legacy');
But I get an error 'could not load type csrf'.
Can someone help me on this ?
Thanks.
Okay, I have given this a try.
My first answer is actually a question: If you don't intend to execute any legacy kernel code as a follow-up to your form, you don't need to care about the intention, I believe.
Intentions between the Symfony and legacy kernels only need to match if the Legacy Kernel is booted (in which case it will check if there is a token, and if it is valid).
If you need to use the Legacy Kernel, you can set the intention to legacy by passing custom form options:
$formOptions = array( 'intention' => 'legacy' );
$form = $this->createFormBuilder( null, $formOptions )
->add( 'text', 'text' )
->getForm();
Setting the default intention is explained in http://symfony.com/doc/current/book/forms.html#csrf-protection, but I wouldn't really advise this, unless you intend to only rely on the legacy kernel.

Prevent form manipulation in Lithium/mongoDB

I'm writing my first community page with Lithium and mongoDB. I really like the schema-less way of mongo, but there is one problem making it impossible working without a schema:
For instance we have a simple form like this:
<?=$this->form->create();?>
<?=$this->form->field('name',array('label' => 'Topic title'));?>
<?=$this->form->field('text',array('label' => 'Content'));?>
<?=$this->form->submit('create');?>
which will be even simpler saved by this:
if($this->request->is('post')) {
$board_post = BoardPosts::create($this->request->data);
$board_post->save();
}
Now it's possible for everyone to add some form inputs by DOM manipulation with Firebug, Developer Tools etc. Of course that it might be some sensless fields in the database, but maybe someone adds a field, that is really used.
The only way to prevent this, is creating a schema in model. But for me this makes the whole idea of a schema-less database useless, doesn't it? And how to make schemas for different situations/actions, when some fields must not occur?
The Model::save() method accepts a 'whitelist' param in its options. See http://li3.me/docs/lithium/data/Model::save()
$whitelist = array(
'title',
'text'
);
$post = BoardPosts::create();
$post->save($this->request->data, compact('whitelist'));
You can also define protected $_schema in your Model and set protected $_meta = array('locked' => true); which will automatically set the whitelist to the fields defined in your schema. However, it is a good idea to define the whitelist in your controller to avoid attacks like you describe.
This problem is called a mass-assignment vulnerability and exists in many frameworks if developers are not careful.

Zend Framework 1.11.12, Doctrine 2.2.2 integration: Error 500

I'm trying to integrate Doctrine 2 into Zend Framework (I'm new to ZF). I've look everywhere on the net but couldn't find my answer...
I've followed this recent tutorial: http://hectorpinol.com/zend-framework-1-11-and-doctrine-2-2-x-integration/ and I've managed to generate a table using the CLI.
The last step of the tuto is to add a new line in this table, simply using the Index controller. But my website doesn't work anymore (a brutal error 500, no message) because I changed the bootstrap.
if I remove the last lines I added to the _initDoctrine() method, it works again (but without Doctrine of course). Here they are:
// set the proxy dir and set some options
$config->setProxyDir(APPLICATION_PATH . '/models/Proxies');
$config->setAutoGenerateProxyClasses(true);
$config->setProxyNamespace('App\Proxies');
// now create the entity manager and use the connection
// settings we defined in our application.ini
$connectionSettings = $this->getOption('doctrine');
$conn = array(
'driver' => $connectionSettings['conn']['driv'],
'user' => $connectionSettings['conn']['user'],
'password' => $connectionSettings['conn']['pass'],
'dbname' => $connectionSettings['conn']['dbname'],
'host' => $connectionSettings['conn']['host']
);
$entityManager = \Doctrine\ORM\EntityManager::create($conn, $config);
// push the entity manager into our registry for later use
$registry = Zend_Registry::getInstance();
$registry->entitymanager = $entityManager;
return $entityManager;
Do you have any idea to unlock the situation? It's frustrating because I know I'm so close to make it work...
UPDATE1: I forgot to mention, in case it helps: I'm using WAMP on Windows. Thanks
UPDATE2: Added the parameters of the create() function.
UPDATE3: Actually it might not be an error 500. Chrome says this but Firefox just displays nothing. No answer from the server.
1) Change the environment to development to see the error message.
2) Use Bisna library instead, will save a lot of time (I don't see a point in integrating Doctrine manually well only educational purposes but you might want to save it for later).

Programmatically adding an article to Joomla

I am very new to Joomla (frankly just started exploring the possibility of using Joomla) and need help with programmatically adding articles to Joomla backend tables (please see details below). Also along the same lines, I would like to understand how should values for the columns:
parent_id
lft
rgt
level
be generated for the table jos_assets (#__assets) and what is their functional role (eg are they “pointers/indexes” analogous to, say, an os inode to uniquely indentify a file or are they more functional attributes such as identifying the category, subcategory etc)
It might help to use the following SIMPLIFIED example to illustrate what I am trying to do. Say we have a program that collects various key information such as names of the authors of web articles, the subject type of the articles, the date of articles as well as a link to the article. I want to be able to extend this program to programmatically store this information in Joomla. Currently this information is stored in a custom table and the user, through a custom php web page, can use search criteria say by author name, over a certain range of dates to find the article(s) of interest. The result of this search is then displayed along with a hyperlink to the actual article. The articles are stored locally on the web server and are not external links. The portion of the hyperlink stored in the custom table includes the relative path of the physical document (relative to the web root), so for example:
Author date type html_file
Tom 08-14-2011 WEB /tech/11200/ar_324.html
Jim 05-20-2010 IND /tech/42350/ar_985.html
etc.
With all the advantages that Joomla offers over writing custom php search and presentation pages as well as trending etc, we would really like to switch to it. It seems that among other tables for example that #__assets and #__content can be populated programmatically to populate Joomla from our existing php program (which is used to compile the data) and then use Joomla.
Any examples, suggestions and help is greatly appreciated
Kindest regards
Gar
Just an initial note: Joomla 1.6/1.7 are pretty similar. 1.5 not so much. I'll assume 1.6/1.7, as that's what I'd recommend as a base for a new project.
First up, you'll need to be running with access to the Joomla framework. You could do this through a Component, or a module, or a cron that bootstraps it or whatever. I won't go though how to do that.
But once you do that, creating an article is reasonably simple.
<?php
require_once JPATH_ADMINISTRATOR . '/components/com_content/models/article.php';
$new_article = new ContentModelArticle();
$data = array(
'catid' => CATEGORY_ID,
'title' => 'SOME TITLE',
'introtext' => 'SOME TEXT',
'fulltext' => 'SOME TEXT',
'state' => 1,
);
$new_article->save($data);
The actual list of fields will be a bit longer than that (required fields etc), but you should get sane error messages etc from the Joomla framework which illuminate that.
So in summary:
Load up the Joomla framework so you have access to the DB, components, models, etc
Include the com_content article class, which will handle validation, saving to the database etc for you
Create an article instance with the required fields filled in as appropriate
Call save()
Now that I think about it, that'll probably work in 1.5...
Found a better way to do this without any errors Create a Joomla! Article Programatically
$table = JTable::getInstance('Content', 'JTable', array());
$data = array(
'catid' => 1,
'title' => 'SOME TITLE',
'introtext' => 'SOME TEXT',
'fulltext' => 'SOME TEXT',
'state' => 1,
);
// Bind data
if (!$table->bind($data))
{
$this->setError($table->getError());
return false;
}
// Check the data.
if (!$table->check())
{
$this->setError($table->getError());
return false;
}
// Store the data.
if (!$table->store())
{
$this->setError($table->getError());
return false;
}

How do I use add_to in Class::DBI?

I'm trying to use Class::DBI with a simple one parent -> may chidren relationships:
Data::Company->table('Companies');
Data::Company->columns(All => qw/CompanyId Name Url/);
Data::Company->has_many(offers => 'Data::Offer'=>'CompanyId'); # =>'CompanyId'
and
Data::Offer->table('Offers');
Data::Offer->columns(All => qw/OfferId CompanyId MonthlyPrice/);
Data::Offer->has_a(company => 'Data::Company'=>'CompanyId');
I try to add a new record:
my $company = Data::Company->insert({ Name => 'Test', Url => 'http://url' });
my $offer = $company->add_to_offers({ MonthlyPrice => 100 });
But I get:
Can't locate object method "add_to_offers" via package "Data::Company"
I looked at the classical Music::CD example, but I cannot figure out what I am doing wrong.
I agree with Manni, if your package declarations are in the same file, then you need to have the class with the has_a() relationship defined first. Otherwise, if they are in different source files, then the documentation states:
Class::DBI should usually be able to
do the right things, as long as all
classes inherit Class::DBI before
'use'ing any other classes.
As to the three-argument form, you are doing it properly. The third arg for has_many() is the column in the foreign class which is a foreign key to this class. That is, Offer has a CompanyId which points to Company's CompanyId.
Thank you
Well, the issue was actually not my code, but my set up. I realized that this morning after powering on my computer:
* Apache + mod_perl on the server
* SMB mount
When I made changes to several files, not all changes seems to be loaded by mod_perl. Restarting Apache solves the issue. I've actually seen this kind of issue in the past where the client and SMB server's time are out of sync.
The code above works fine with 1 file for each module.
Thank you
I really haven't got much experience with Class:DBI, but I'll give this a shot anyway:
The documentation states that: "the class with the has_a() must be defined earlier than the class with the has_many()".
I cannot find any reference to the way you are using has_a and has_many with three arguments which is always 'CompanyId' in your case.