Generate pedigree tree YII2 - yii2

Question

I am trying to generate pedigree
my DB schema:
CREATE TABLE `Pedigrees` (
`pedigrees_id` int(10) NOT NULL AUTO_INCREMENT,
`horse_name` varchar(32) NOT NULL,
`sire_id` int(10) DEFAULT NULL,
`dam_id` int(10) DEFAULT NULL,
PRIMARY KEY (`pedigrees_id`),
and other info data
Generete GII CRUD for controller model and index.php and viev.php
get info for SIRE and DAM to viev.php
Model Pedigrees:
public function getParentsir()
{
return $this->hasOne(Pedigrees::className(), ['pedigrees_id' => 'sire_id']);
}
public function getParentdam()
{
return $this->hasOne(Pedigrees::className(), ['pedigrees_id' => 'dam_id']);
}
and for viev.php use html + php ()
<?php if ($model->parentdam->parentdam->parentdam->parentdam) {
echo Html::a(Html::encode($model->parentdam->parentdam->parentdam->parentdam->name));
}else{
echo "<tr><td><li>none</li></td></tr>";
}?>
and table example:
<table>
<TR><TD ROWSPAN=8 >
<div>
<h3> <?php
echo Html::a( Html::encode($model->name, $model->pedigrees_id), Url::to(['pedigrees/view', 'id' => $model->pedigrees_id]));
echo Html::img('/web/images/photo_p/'.$model->photo_path, [ 'class'=>'img-responsive img-rounded']);;
echo "</h3>";
echo "<ul>
<li>$model->color</li>
<li>$model->land_stand</li>
<li>$model->date_birth</li>
<li>$model->titles</li>
</ul> </div> </div> </TD>";
?>
<?php if ($model->parentsir) {
echo " <TD ROWSPAN=4 >
<div class=header><h3>sir1_1 ";
echo Html::a( Html::encode($model->parentsir->name, $model->parentsir->pedigrees_id), Url::to(['pedigrees/view', 'id' => $model->parentsir->pedigrees_id]));
echo Html::img('/web/images/photo_p/'.$model->parentsir->photo_path, [ 'class'=>'img-responsive img-rounded']);
echo "<br>";
echo Html::label( $model->parentsir->color);
echo Html::label( $model->parentsir->date_birth);
echo Html::label( $model->parentsir->titles);
echo "</h3></div>
</TD>
<TD ROWSPAN=2 >
<div class=header><h3>sir1_3";
if ($model->parentsir->parentsir) {
echo Html::a( Html::encode($model->parentsir->parentsir->name, $model->parentsir->parentsir->pedigrees_id), Url::to(['pedigrees/view', 'id' => $model->parentsir->parentsir->pedigrees_id]));
echo Html::img('/web/images/'.$model->parentsir->parentsir->photo_path, ['class'=>'img-responsive img-rounded']);
echo Html::label( $model->parentsir->parentsir->color);
echo Html::label( $model->parentsir->parentsir->date_birth);
echo Html::label( $model->parentsir->parentsir->titles);
} else {
echo "no info";
}
ETC...
</table>
i have lov skill for YII2 and php
may be some have better solution for this?
or can help with this example for this solution for YII1 Remake for yii2?