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<?php
/******************************************************************************/
/****************************** DELETION FUNCTIONS ****************************/
/******************************************************************************/
function lab_migration_delete_solution($solution_id)
{
global $user;
$root_path = lab_migration_path();
$status = TRUE;
$query = db_select('lab_migration_solution');
$query->fields('lab_migration_solution');
$query->condition('id', $solution_id);
$solution_q = $query->execute();
$solution_data = $solution_q->fetchObject();
if (!$solution_data)
{
drupal_set_message(t('Invalid solution.'), 'error');
return FALSE;
}
$query = db_select('lab_migration_experiment');
$query->fields('lab_migration_experiment');
$query->condition('id', $solution_data->experiment_id);
$experiment_q = $query->execute();
$experiment_data = $experiment_q->fetchObject();
$query = db_select('lab_migration_proposal');
$query->fields('lab_migration_proposal');
$query->condition('id', $experiment_data->proposal_id);
$proposal_q = $query->execute();
$proposal_data = $proposal_q->fetchObject();
if (!$experiment_data)
{
drupal_set_message(t('Invalid experiment.'), 'error');
return FALSE;
}
/* deleting solution files */
$query = db_select('lab_migration_solution_files');
$query->fields('lab_migration_solution_files');
$query->condition('solution_id', $solution_id);
$solution_files_q = $query->execute();
while ($solution_files_data = $solution_files_q->fetchObject())
{
$ex_path = $proposal_data->directory_name . '/' . $solution_files_data->filepath;
$dir_path = $root_path . $ex_path;
if (!file_exists($dir_path))
{
$status = FALSE;
drupal_set_message(t('Error deleting !file. File does not exists.', array('!file' => $dir_path)), 'error');
continue;
}
/* removing solution file */
if (!unlink($dir_path))
{
$status = FALSE;
drupal_set_message(t('Error deleting !file', array('!file' => $dir_path)), 'error');
/* sending email to admins */
$email_to = variable_get('lab_migration_emails', '');
$from = variable_get('lab_migration_from_email', '');
$bcc="";
$cc=variable_get('lab_migration_cc_emails', '');
$param['standard']['subject'] = "[ERROR] Error deleting example file";
$param['standard']['body'] = "Error deleting solution files by " . $user->uid . " at " . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] . " :
solution id : " . $solution_id . "
file id : " . $solution_files_data->id . "
file path : " . $solution_files_data->filepath."
PDF path : " . $PdfStatus;
$param['standard']['headers']=array('From'=>$from,'MIME-Version'=> '1.0',
'Content-Type'=> 'text/plain; charset=UTF-8; format=flowed; delsp=yes',
'Content-Transfer-Encoding' => '8Bit',
'X-Mailer'=> 'Drupal','Cc' => $cc, 'Bcc' => $bcc);
if (!drupal_mail('lab_migration', 'standard', $email_to, language_default(), $param, $from, TRUE))
drupal_set_message('Error sending email message.', 'error');
}
else {
/* deleting example files database entries */
db_delete('lab_migration_solution_files')->condition('id', $solution_files_data->id)->execute();
}
}
if (!$status)
return FALSE;
$query = db_select('lab_migration_solution');
$query->fields('lab_migration_solution');
$query->condition('id', $solution_id);
$solution_q = $query->execute();
$solution_data = $solution_q->fetchObject();
if (!$solution_data)
{
drupal_set_message(t('Invalid solution.'), 'error');
return FALSE;
}
$query = db_select('lab_migration_experiment');
$query->fields('lab_migration_experiment');
$query->condition('id', $solution_data->experiment_id);
$experiment_q = $query->execute();
$experiment_data = $experiment_q->fetchObject();
$query = db_select('lab_migration_proposal');
$query->fields('lab_migration_proposal');
$query->condition('id', $experiment_data->proposal_id);
$proposal_q = $query->execute();
$proposal_data = $proposal_q->fetchObject();
$dir_path = $root_path . $proposal_data->directory_name . '/EXP' . $experiment_data->number . '/CODE' . $solution_data->code_number;
if (is_dir($dir_path))
{
if (!rmdir($dir_path))
{
drupal_set_message(t('Error deleting folder !folder', array('!folder' => $dir_path)), 'error');
/* sending email to admins */
$email_to = variable_get('lab_migration_emails', '');
$from = variable_get('lab_migration_from_email', '');
$bcc="";
$cc=variable_get('lab_migration_cc_emails', '');
$param['standard']['subject'] = "[ERROR] Error deleting folder";
$param['standard']['body'] = "Error deleting folder " . $dir_path . " by " . $user->uid . " at " . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
$param['standard']['headers']=array('From'=>$from,'MIME-Version'=> '1.0',
'Content-Type'=> 'text/plain; charset=UTF-8; format=flowed; delsp=yes',
'Content-Transfer-Encoding' => '8Bit',
'X-Mailer'=> 'Drupal','Cc' => $cc, 'Bcc' => $bcc);
if (!drupal_mail('lab_migration', 'standard', $email_to, language_default(), $param, $from, TRUE))
drupal_set_message('Error sending email message.', 'error');
return FALSE;
}
}
else
{
drupal_set_message(t('Cannot delete solution folder. !folder does not exists.', array('!folder' => $dir_path)), 'error');
return FALSE;
}
/* deleting solution dependency and solution database entries */
db_delete('lab_migration_solution_dependency')->condition('solution_id', $solution_id)->execute();
db_delete('lab_migration_solution')->condition('id', $solution_id)->execute();
return $status;
}
function lab_migration_delete_experiment($experiment_id)
{
$status = TRUE;
$root_path = lab_migration_path();
$query = db_select('lab_migration_experiment');
$query->fields('lab_migration_experiment');
$query->condition('id', $experiment_id);
$experiment_q = $query->execute();
$experiment_data = $experiment_q->fetchObject();
$query = db_select('lab_migration_proposal');
$query->fields('lab_migration_proposal');
$query->condition('id', $experiment_data->proposal_id);
$proposal_q = $query->execute();
$proposal_data = $proposal_q->fetchObject();
if (!$experiment_data)
{
drupal_set_message('Invalid experiment.', 'error');
return FALSE;
}
/* deleting solutions */
$query = db_select('lab_migration_solution');
$query->fields('lab_migration_solution');
$query->condition('experiment_id', $experiment_id);
$solution_q = $query->execute();
$delete_exp_folder = FALSE;
while ($solution_data = $solution_q->fetchObject())
{
$delete_exp_folder = TRUE;
if (!lab_migration_delete_solution($solution_data->id))
$status = FALSE;
}
if (!$delete_exp_folder)
{
return TRUE;
}
if ($status)
{
$dir_path = $root_path . $proposal_data->directory_name . '/EXP' . $experiment_data->number;
if (is_dir($dir_path))
{
$res = rmdir($dir_path);
if (!$res)
{
drupal_set_message(t('Error deleting experiment folder !folder', array('!folder' => $dir_path)), 'error');
/* sending email to admins */
$email_to = variable_get('lab_migration_emails', '');
$from = variable_get('lab_migration_from_email', '');
$bcc="";
$cc=variable_get('lab_migration_cc_emails', '');
$param['standard']['subject'] = "[ERROR] Error deleting experiment folder";
$param['standard']['body'] = "Error deleting folder " . $dir_path;
$param['standard']['headers']=array('From'=>$from,'MIME-Version'=> '1.0',
'Content-Type'=> 'text/plain; charset=UTF-8; format=flowed; delsp=yes',
'Content-Transfer-Encoding' => '8Bit',
'X-Mailer'=> 'Drupal','Cc' => $cc, 'Bcc' => $bcc);
if (!drupal_mail('lab_migration', 'standard', $email_to, language_default(), $param,$from, TRUE))
drupal_set_message('Error sending email message.', 'error');
return FALSE;
}
else
{
return TRUE;
}
}
else {
drupal_set_message(t('Cannot delete experiment folder. !folder does not exists.', array('!folder' => $dir_path)), 'error');
return FALSE;
}
}
return FALSE;
}
function lab_migration_delete_lab($lab_id)
{
$status = TRUE;
$root_path = lab_migration_path();
$query = db_select('lab_migration_proposal');
$query->fields('lab_migration_proposal');
$query->condition('id', $lab_id);
$proposal_q = $query->execute();
$proposal_data = $proposal_q->fetchObject();
if (!$proposal_data)
{
drupal_set_message('Invalid Lab.', 'error');
return FALSE;
}
/* delete experiments */
$query = db_select('lab_migration_experiment');
$query->fields('lab_migration_experiment');
$query->condition('proposal_id', $proposal_data->id);
$experiment_q = $query->execute();
while ($experiment_data = $experiment_q->fetchObject())
{
if (!lab_migration_delete_experiment($experiment_data->id))
{
$status = FALSE;
}
}
return $status;
}
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