ZF2: how to get options for dropdown from db - php

Question

I followed the tutorial. But I can find no way to populate a form select from a database like this:
// Blog/src/Blog/Form/BlogItemForm.php
$blogCategoryTable = new Model\BlogCategoryTable;
$this->add(new Element\Select('category_id',
array('label' => 'Category', 'value_options' => $blogCategoryTable->getFormChoices())
));
Does anyone have any ideas?

Answer 1

I use a function to retrieve the data and set it to the form:
From my factory:
$option_for_select = $this->model->getWhatEver();
$this->add($factory->createElement(array(
'name' => 'what_ever',
'type' => 'Zend\Form\Element\Select',
'attributes' => array(
'options' => $option_for_select,
),
'options' => array(
'label' => 'What ever:',
),
)));
From the model:
public function getWhatEver()
{
$sql = "SELECT something";
$statement = $this->adapter->query($sql);
$res = $statement->execute();
// set the first option
$rows[0] = array (
'value' => '0',
'label' => 'Top',
'selected' => TRUE,
'disabled' => FALSE
);
foreach ($res as $row) {
$rows[$row['triplet_id']] = array (
'value' => $row['col1'],
'label' => $row['col2'],
);
}
return $rows;
}