But it gives error
in page i need field for height, weight, picture, video link, and the name
have made them using article holder and article page tutorial but something goed wrong.

The pages are called : ElevantPage.php , DigisilmPage.php
and holder name is: KaameraHolder.php

Codes Are

Digisilmpage.php :
<?php
/**
* Defines the ElevantPage page type
*/
class DigisilmPage extends Page {
static $db = array(
   'Video' => 'Text',
   'Pealkiri' => 'Text',
   'Photo' => 'Image',
   'Pikkus' => 'Text',
   'Korgus' => 'Text'
);
static $has_one = array(
);
}

class DigisilmPage_Controller extends Page_Controller {

   function getCMSFields() {
   $fields = parent::getCMSFields();

   $fields->addFieldToTab('Root.Content.Main', new TextField('Video'), 'Content');
   $fields->addFieldToTab('Root.Content.Main', new TextField('Pealkiri'), 'Content');
   $fields->addFieldToTab('Root.Content.Main', new ImageField('Photo'), "Content");
   $fields->addFieldToTab('Root.Content.Main', new TextField('Pikkus'), 'Content');
   $fields->addFieldToTab('Root.Content.Main', new TextField('Korgus'), 'Content');
   
   return $fields;
}

}

?>

ElevantPage.php:
<?php
/**
* Defines the ElevantPage page type
*/
class ElevantPage extends Page {
static $db = array(
   'Video' => 'Text',
   'Pealkiri' => 'Text',
   'Photo' => 'Image',
   'Pikkus' => 'Text',
   'VideoKorgus' => 'Text'
   
);
static $has_one = array(
);
}

class ElevantPage_Controller extends Page_Controller {

   function getCMSFields() {
   $fields = parent::getCMSFields();

   $fields->addFieldToTab('Root.Content.Main', new TextField('Video'), 'Content');
   $fields->addFieldToTab('Root.Content.Main', new TextField('Pealkiri'), 'Content');
   $fields->addFieldToTab('Root.Content.Main', new ImageField('Photo'), 'Content');
   $fields->addFieldToTab('Root.Content.Main', new TextField('Pikkus'), 'Content');
   $fields->addFieldToTab('Root.Content.Main', new TextField('Korgus'), 'Content');
   
   return $fields;
}

}

?>

And the holder page is

<?php
/**
* Defines the ArticleHolder page type
*/
class KaameraHolder extends Page {

static $allowed_children = array("DigisilmPage", "ElevantPage");
}

class KaameraHolder_Controller extends Page_Controller {

}

?>

found the second problem also it was in db the photo it needed to be in has one.