save form field in component params joomla - php

Question

I am using joomla 2.5, I am working on custom component of joomla . I have created the form in backend admin page. what i need is , i want to save the post data of form in params row of that component in database of #_extensions.
Here is my tables/component.php
<?php defined('_JEXEC') or die('Restricted access');
jimport('joomla.database.table');
class componentTablecomponent extends JTable {
function __construct(&$db)
{
parent::__construct('#__extensions', 'extension_id', $db);
}
public function bind($array, $ignore = '')
{
if (isset($array['params']) && is_array($array['params']))
{
// Convert the params field to a string.
$parameter = new JRegistry;
$parameter->loadArray($array['params']);
$array['params'] = (string)$parameter;
}
return parent::bind($array, $ignore);
}
public function load($pk = null, $reset = true)
{
if (parent::load($pk, $reset))
{
// Convert the params field to a registry.
$params = new JRegistry;
$params->loadJSON($this->params);
$this->params = $params;
return true;
}
else
{
return false;
}
} public function store() {
parent::store(null);
}
}
Instead of saving the $data in params row of that component . This code is creating new empty rows in that table(data is saving in those params field).
Here is my save() function in controllers/component.php
public function save()
{
// Check for request forgeries.
JSession::checkToken() or jexit(JText::_('JINVALID_TOKEN'));
// Check if the user is authorized to do this.
if (!JFactory::getUser()->authorise('core.admin'))
{
`JFactory::getApplication()->redirect('index.php',JText::_('JERROR_ALERTNOAUTHOR'));`
return;
}
// Initialise variables.
$app = JFactory::getApplication();
$model = $this->getModel('component');
$form = $model->getForm();
$data = JRequest::getVar('jform', array(), 'post', 'array');
print_r($data);
// Validate the posted data.
$return = $model->validate($form, $data);
// Check for validation errors.
if ($return === false)
{
// Get the validation messages.
$errors = $model->getErrors();
// Push up to three validation messages out to the user.
for ($i = 0, $n = count($errors); $i < $n && $i < 3; $i++) {
if ($errors[$i] instanceof Exception) {
$app->enqueueMessage($errors[$i]->getMessage(), 'warning');
} else {
$app->enqueueMessage($errors[$i], 'warning');
}
}
// Redirect back to the edit screen.
$this->setRedirect(JRoute::_('somelink',false));
return false;
}
// Attempt to save the configuration.
$data = $return;
$return = $model->save($data);
// Check the return value.
if ($return === false)
{
// Save failed, go back to the screen and display a notice.
$message = JText::sprintf('JERROR_SAVE_FAILED', $model->getError());
$this->setRedirect('index.php/somelink','error');
return false;
}
// Set the success message.
$message = JText::_('COM_CONFIG_SAVE_SUCCESS');
// Set the redirect based on the task.
switch ($this->getTask())
{
case 'apply':
$this->setRedirect('somelink',$message);
break;
case 'cancel':
case 'save':
default:
$this->setRedirect('index.php', $message);
break;
}
return true;
}
models/component.php
public function save($data) {
parent::save($data);
return true;
}
I thinks these codes are enough . I can add more codes if you need.

Answer 1

If you want to store params in the extension table, why not just use com_config for it?
See http://docs.joomla.org/J2.5:Developing_a_MVC_Component/Adding_configuration
Then you don't have to do anything besides creating the config.xml and adding a link to the config options in the toolbar.

Answer 2

I have come up with a solution . it works for me . By using this method you can control save () functions i.e. you can run your custom php scripts on save, apply toolbar buttons.
I copied save(),save($data), store($updateNulls = false) functions from com_config component , I have copied the layout from component view . Removed the buttons. Added toolbar buttons in .html.php file.
controllers/mycomponent.php
<?php
defined('_JEXEC') or die;
class componentControllermycomponent extends JControllerLegacy {
function __construct($config = array())
{
parent::__construct($config);
// Map the apply task to the save method.
$this->registerTask('apply', 'save');
}
function save()
{
// Check for request forgeries.
JSession::checkToken() or jexit(JText::_('JINVALID_TOKEN'));
// Set FTP credentials, if given.
JClientHelper::setCredentialsFromRequest('ftp');
// Initialise variables.
$app = JFactory::getApplication();
$model = $this->getModel('mymodel');
$form = $model->getForm();
$data = JRequest::getVar('jform', array(), 'post', 'array');
$id = JRequest::getInt('id');
$option = 'com_mycomponent';
// Check if the user is authorized to do this.
if (!JFactory::getUser()->authorise('core.admin', $option))
{
JFactory::getApplication()->redirect('index.php', JText::_('JERROR_ALERTNOAUTHOR'));
return;
}
// Validate the posted data.
$return = $model->validate($form, $data);
// Check for validation errors.
if ($return === false) {
// Get the validation messages.
$errors = $model->getErrors();
// Push up to three validation messages out to the user.
for ($i = 0, $n = count($errors); $i < $n && $i < 3; $i++) {
if ($errors[$i] instanceof Exception) {
$app->enqueueMessage($errors[$i]->getMessage(), 'warning');
} else {
$app->enqueueMessage($errors[$i], 'warning');
}
}
// Save the data in the session.
$app->setUserState('com_iflychat.config.global.data', $data);
// Redirect back to the edit screen.
$this->setRedirect(JRoute::_('index.php?option=com_mycomponent&view=component&component='.$option.'&tmpl=component', false));
return false;
}
// Attempt to save the configuration.
$data = array(
'params' => $return,
'id' => $id,
'option' => $option
);
// print_r($data);
$return = $model->save($data);
// Check the return value.
if ($return === false)
{
// Save the data in the session.
$app->setUserState('com_config.config.global.data', $data);
// Save failed, go back to the screen and display a notice.
$message = JText::sprintf('JERROR_SAVE_FAILED', $model->getError());
$this->setRedirect('index.php?option=com_mycomponent&view=component&component='.$option.'&tmpl=component', $message, 'error');
return false;
}
// Set the redirect based on the task.
switch ($this->getTask())
{
case 'apply':
$message = JText::_('COM_MYCOMPONENT_SAVE_SUCCESS');
print_r($data);
$this->setRedirect('index.php?option=com_mycomponent&view=myview&layout=edit', $message);
break;
case 'save':
default:
$this->setRedirect('index.php');
break;
}
return true;
}
function cancel()
{
$this->setRedirect('index.php');
}
}
models/mymodel.php
<?php
defined('_JEXEC') or die;
jimport('joomla.application.component.modelform');
class componentModelmymodel extends JModelForm {
protected $event_before_save = 'onConfigurationBeforeSave';
protected $event_after_save = 'onConfigurationAfterSave';
public function getForm($data = array(), $loadData = true){
// Get the form.
$form = $this->loadForm('com_mycomponent.form', 'config',
array('control' => 'jform', 'load_data' => $loadData));
if (empty($form)){
return false;
}
return $form;
}
public function save($data)
{
$dispatcher = JDispatcher::getInstance();
$table = JTable::getInstance('extension');
$isNew = true;
// Save the rules.
if (isset($data['params']) && isset($data['params']['rules']))
{
$rules = new JAccessRules($data['params']['rules']);
$asset = JTable::getInstance('asset');
if (!$asset->loadByName($data['option']))
{
$root = JTable::getInstance('asset');
$root->loadByName('root.1');
$asset->name = $data['option'];
$asset->title = $data['option'];
$asset->setLocation($root->id, 'last-child');
}
$asset->rules = (string) $rules;
if (!$asset->check() || !$asset->store())
{
$this->setError($asset->getError());
return false;
}
// We don't need this anymore
unset($data['option']);
unset($data['params']['rules']);
}
// Load the previous Data
if (!$table->load($data['id']))
{
$this->setError($table->getError());
return false;
}
unset($data['id']);
// Bind the data.
if (!$table->bind($data))
{
$this->setError($table->getError());
return false;
}
// Check the data.
if (!$table->check())
{
$this->setError($table->getError());
return false;
}
// Trigger the oonConfigurationBeforeSave event.
$result = $dispatcher->trigger($this->event_before_save, array($this->option . '.' . $this->name, $table, $isNew));
if (in_array(false, $result, true))
{
$this->setError($table->getError());
return false;
}
// Store the data.
if (!$table->store())
{
$this->setError($table->getError());
return false;
}
// Clean the component cache.
$this->cleanCache('_system');
// Trigger the onConfigurationAfterSave event.
$dispatcher->trigger($this->event_after_save, array($this->option . '.' . $this->name, $table, $isNew));
return true;
}
function getComponent()
{
$result = JComponentHelper::getComponent('com_mycomponent');
return $result;
}
}
tables/mycomponent.php
<?php
// No direct access
defined('_JEXEC') or die('Restricted access');
// import Joomla table library
jimport('joomla.database.table');
/**
* Hello Table class
*/
class componentTableMycomponent extends JTable
{
function __construct(&$db)
{
parent::__construct('#__extensions', 'extension_id', $db);
}
public function bind($array, $ignore = '')
{
if (isset($array['params']) && is_array($array['params']))
{
// Convert the params field to a string.
$parameter = new JRegistry;
$parameter->loadArray($array['params']);
$array['params'] = (string)$parameter;
}
return parent::bind($array, $ignore);
}
public function load($pk = null, $reset = true)
{
if (parent::load($pk, $reset))
{
// Convert the params field to a registry.
$params = new JRegistry;
$params->loadJSON($this->params);
$this->params = $params;
return true;
}
else
{
return false;
}
}
public function store($updateNulls = false)
{
// Transform the params field
if (is_array($this->params)) {
$registry = new JRegistry();
$registry->loadArray($this->params);
$this->params = (string)$registry;
}
$date = JFactory::getDate();
$user = JFactory::getUser();
if ($this->id) {
// Existing item
$this->modified = $date->toSql();
$this->modified_by = $user->get('id');
} else {
// New newsfeed. A feed created and created_by field can be set by the user,
// so we don't touch either of these if they are set.
if (!intval($this->created)) {
$this->created = $date->toSql();
}
if (empty($this->created_by)) {
$this->created_by = $user->get('id');
}
}
// Verify that the alias is unique
$table = JTable::getInstance('Yourinstance', 'mycomponentTable');
if ($table->load(array('alias'=>$this->alias, 'catid'=>$this->catid)) && ($table->id != $this->id || $this->id==0)) {
$this->setError(JText::_('COM_CONTACT_ERROR_UNIQUE_ALIAS'));
return false;
}
// Attempt to store the data.
return parent::store($updateNulls);
}
}
Note : your config.xml file should be in models/forms folder.