joomla loadformdata - joomla

Question

how to show data from 3 tables in one view, because using JTable i can show data only bind to that JTable, please help me with this one.
my code so far(not working) in models:
public function getEntireProject(){
$item_id = $this->getItem()->id;
$db =& JFactory::getDBO();
$query = $db->getQuery(true);
$query->select('*');
$query->from('#__project_part_1 AS a');
$query->leftJoin('#__project_part_2 AS u ON a.uuid = u.uuid');
$query->leftJoin('#__project_part_3 AS y ON a.uuid = y.uuid');
$query->where('a.id = '. (int) $item_id);
$db->setQuery($query);
return $db->loadResult();
}
protected function loadFormData()
{
// Check the session for previously entered form data.
$data = JFactory::getApplication()->getUserState('com_web_projects.edit.webproject.data', array());
if (empty($data)) {
$data = $this->getEntireProject();
}
return $data;
}

Answer 1

try to overwrite getItem function.This will also be helpful if you are calling get('Item') in view. -
public function getItem($pk = null){
if ($item = parent::getItem($pk)) {
$db =& JFactory::getDBO();
$query = $db->getQuery(true);
$query->select('*');
$query->from('#__project_part_1 AS a');
$query->leftJoin('#__project_part_2 AS u ON a.uuid = u.uuid');
$query->leftJoin('#__project_part_3 AS y ON a.uuid = y.uuid');
$query->where('a.id = '. (int) $item->id);
$db->setQuery($query);
$item = $db->loadAssoc();
}
return $item;
}
protected function loadFormData()
{
// Check the session for previously entered form data.
$data = JFactory::getApplication()->getUserState('com_web_projects.edit.webproject.data', array());
if (empty($data)) {
$data = $this->getItem();
}
return $data;
}

Answer 2

For Multi-Row Results use loadRowList(), loadAssocList(), loadAssocList($key), loadObjectList(), loadObjectList('key'). $db->loadResult() only load one result. Read more.
If I understand your question right this should fix your problem. If you not please ask.