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After adding later, do not fix it delete the data.

- Modify the files in the folder hello.php controllers add method delete.

com_helloworld/controllers/hello.php

function delete() 
{
        JRequest::checkToken() or die('Invaild Token');
        $cid = JRequest::getVar('cid');
        $model = $this->getModel('hello');
        foreach ($cid as $id) {
                if($model->delete($id)) {
                        $this->setMessage('Delete successfully');
                } else {
                        JError::raiseWarning('', 'Delete failed<br />'.implode('<br />', $model->getErrors()));
                }
        }

        $this->setRedirect(JRoute::_('index.php?option=com_helloworld&c=hello'));

 

- Modify the files in the folder models hello.php Add method delete.

com_helloworld/models/hello.php

function delete($id) 
{
        $db = JFactory::getDbo();
        $query = $db->getQuery(true);
        try {
                $query->delete('#__helloworld_hello')
                        ->where($db->quoteName('id').'='.$db->quote($id));
                $db->setQuery($query);
                $db->execute();
        } catch (RuntimeException $exc) {
                $this->setError($exc->getMessage());
                return false;
        }
        return true;


 

Chapter 14 - Language file Component Development

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