Load Form from module into custom page template - forms

Question

I have successfully added my own form (from the same module) into my custom template, but now I wish to load the taxonomy add term form (used by ubercart I think for product categories in the catalog vocab) into my template.
I have gotten this far with my module - filename simpleadmin.module
/**
* #file
* A module to simplify the admin by replacing add/edit node pages
*/
function simpleadmin_menu() {
$items['admin/products/categories/add'] = array(
'title' => 'Add Category',
'page callback' => 'simpleadmin_category_add',
'access arguments' => array('access administration pages'),
'menu_name' => 'menu-store',
);
return $items;
}
function simpleadmin_category_add() {
module_load_include('inc', 'taxonomy', 'taxonomy.admin');
$output = drupal_get_form('taxonomy_form_term');
return theme('simpleadmin_category_add', array('categoryform' => $output));
}
function simpleadmin_theme() {
return array(
'simpleadmin_category_add' => array(
'template' => 'simpleadmin-template',
'variables' => array('categoryform' => NULL),
'render element' => 'form',
),
);
}
?>
And as for the theme file itself - filename simpleadmin-template.tpl.php, only very simple at the moment until I get the form to load into it:
<div>
This is the form template ABOVE the form
</div>
<?php
dpm($categoryform);
print drupal_render($categoryform);
?>
<div>
This is the form template BELOW the form
</div>
Its telling me that it is
Trying to get property of non-object in taxonomy_form_term()
and throwing up an error. Should I be using node_add() and passing the nodetype?

Answer 1

To render a taxonomy term form, the function should be able to know the vocabulary to which it belongs to. Otherwise how would it know which form to show? I think this is the proper way to do it.
module_load_include('inc', 'taxonomy', 'taxonomy.admin');
if ($vocabulary = taxonomy_vocabulary_machine_name_load('vocabulary_name')) {
$form = drupal_get_form('taxonomy_form_term', $vocabulary);
return theme('simpleadmin_category_add', array('categoryform' => $form));
}
To redirect your form use hook_form_alter
function yourmodule_form_alter(&$form, &$form_state, $form_id) {
//get your vocabulary id or use print_r or dpm for proper validation
if($form_id == 'taxonomy_form_term' && $form['#vocabulary']['vid'] = '7' ){
$form['#submit'][] = 'onix_sections_form_submit';
}
}
function yourmodule_form_submit($form, &$form_state) {
$form_state['redirect'] = 'user';
}