Up to now I have written non-yii code for the generation of Graphviz images to be included in my site. I use the pear GraphViz library which works perfectly fine for this. Now I try to migrate my working code to the basic setup of Yii2, but the autoloading of pear library does not seem to work anymore.
What I have done is the following:
in the directory views I created a subdirectory BigPicture with the index file:
<?php
use yii\helpers\Html;
/* @var $this yii\web\View */
$this->title = Yii::t('app', 'The Big Picture');
$this->params['breadcrumbs'][] = $this->title;
?>
<div class="bigpicture-index">
<?php echo $mysvg; ?>
</div>
in the directory controllers I created the BigpictureController:
<?php
namespace app\controllers;
use Yii;
//use app\models\Catalog;
use yii\web\Controller;
use yii\web\NotFoundHttpException;
use yii\filters\AccessControl;
use yii\filters\VerbFilter;
use app\includes\CBigPicture;
/**
* BigPictureController generates the Big Picture.
*/
class BigpictureController extends Controller
{
public function behaviors()
{
return [
'access' => [
'class' => AccessControl::className(),
'only' => ['index'],
'rules' => [
[
'actions' => ['index'],
'allow' => true,
'roles' => ['@'],
],
],
],
'verbs' => [
'class' => \yii\filters\VerbFilter::className(),
'actions' => [
'index' => ['get'],
],
],
];
}
/**
* Lists all Catalog models.
* @return mixed
*/
public function actionIndex()
{
$bp = new CBigPicture();
$connectstring = "host=localhost dbname=somedb user=" . $_SESSION['username'] . " password=" . $_SESSION['password'];
$bp->con = pg_connect($connectstring)
or die("Could not connect to server...\n");
$bp->page_frame();
return $this->render('index', [
'mysvg' => $bp->outstream,
]);
}
}
I created a directory includes under basic, in which I store the class generating the image:
and the GraphViz Pear class (patched downloaded version)Attachment 6517 not found.
It all runs OK until the image must be created, the error I get with this code is:
Attachment 6519 not found.
As you can see, all classes run fine until the pear part (calling System.php and related files) spoils the fun.
Any suggestions? Installing the pear/pear package from packagist did not do it for me 