Can anybody help as I am trying to use the codeigniter's upload library from the helpers folder but I keep getting the same error that I am not selecting an image to upload? Has any body tried this before?
class FileUpload extends CI_Controller {
public function __construct() {
parent::__construct();
$this->load->helper(array('form', 'file_uploading'));
$this->load->library('form_validation', 'upload');
}
public function index() {
$data = array('title' => 'File Upload');
$this->load->view('fileupload', $data);
}
public function doUpload() {
$submit = $this->input->post('submit');
if ( ! isset($submit)) {
echo "Form not submitted correctly";
} else { // Call the helper
if (isset($_FILES['image']['name'])) {
$result = doUpload($_FILES['image']);
if ($result) {
var_dump($result);
} else {
var_dump($result);
}
}
}
}
}
The Helper Function
<?php
function doUpload($param) {
$CI = &get_instance();
$CI->load->library('upload');
$config['upload_path'] = 'uploads/';
$config['allowed_types'] = 'gif|png|jpg|jpeg|png';
$config['file_name'] = date('YmdHms' . '_' . rand(1, 999999));
$CI->upload->initialize($config);
if ($CI->upload->do_upload($param['name'])) {
$uploaded = $CI->upload->data();
return $uploaded;
} else {
$uploaded = array('error' => $CI->upload->display_errors());
return $uploaded;
}
}
There are some minor mistakes in your code, please fix it as below,
$result = doUpload($_FILES['image']);
here you should pass the form field name, as per your code image is the name of file input.
so your code should be like
$result = doUpload('image');
then, inside the function doUpload you should update the code
from
$CI->upload->do_upload($param['name'])
to
$CI->upload->do_upload($param)
because Name of the form field should be pass to the do_upload function to make successful file upload.
NOTE
Make sure you added the enctype="multipart/form-data" in the form
element
I am using php function_exists() function exist on my Welcome controller. But for some reason it keeps on throwing my show_error even though my slideshow function exists.
With in my foreach loop I get module function name from database which in the foreach loop is called $function = $module['code'];
Question is: How am I able to make sure function_exists checks
function exists correctly?
<?php
class Welcome extends CI_Controller {
public function index() {
$data['content_top'] = $this->content_top();
$this->load->view('home', $data);
}
public function content_top() {
$data['modules'] = array();
$modules = $this->get_module();
foreach ($modules as $module) {
$function = $module['code'];
if (function_exists($function)) {
$setting_info = array('test' => 'testing');
if ($setting_info) {
$data['modules'][] = $this->$function($setting_info);
}
} else {
show_error('This ' . $function . ' does not exist on ' . __CLASS__ . ' controller!');
}
}
return $this->load->view('content_top', $data, TRUE);
}
public function banner() {
}
public function slideshow($setting) {
$data['test'] = $setting['test'];
$this->load->view('module/slideshow', $data);
}
public function get_module() {
$query = $this->db->get('modules');
return $query->result_array();
}
}
function_exists() works on functions, but not class methods - these are different things. What you want is method_exists():
method_exists($this, $function);
I'm using CodeIgniter with NuSOAP library for webservices and this is the error I get when accessing the Client controller:
wsdl error: XML error parsing WSDL from http://localhost/turismoadmin/index.php/Webservice/index/wsdl on line 77: Attribute without value
This is the server controller:
class Webservice extends CI_Controller {
function __construct(){
parent::__construct();
$this->load->library('soap_lib');
$server = new nusoap_server;
$server->configureWSDL('Agencia Turistica', 'urn:server');
$server->wsdl->schemaTargetNamespace = 'urn:server';
$server->register('addcontact',
array('nombre' => 'xsd:string', 'apellido' => 'xsd:string' , 'ciudad' => 'xsd:string'),
array('return' => 'xsd:string'));
$HTTP_RAW_POST_DATA = isset($HTTP_RAW_POST_DATA) ? $HTTP_RAW_POST_DATA: '';
$server->service($HTTP_RAW_POST_DATA);
}
function index()
{
if($this->uri->rsegment(3)=="wsdl"){
$_SERVER['QUERY_STRING']="wsdl";
}else{
$_SERVER['QUERY_STRING']="";
}
function addcontact($nombre, $apellido, $ciudad){
$this->modelo_turismo->addcontact($nombre, $apellido, $ciudad);
$resultado = $this->modelo_turismo->selectmax_contacto();
return (json_encode($resultado->fetch_all()));
}
}
}
and this is the Client controller:
class Client extends CI_controller {
function __construct() {
parent::__construct();
}
function index() {
$this->load->library('soap_lib');
$this->nusoap_client = new nusoap_client(site_url('Webservice/index/wsdl'), true);
$err = $this->nusoap_client->getError();
if ($err){
echo '<h2>Constructor error</h2><pre>' . $err . '</pre>';
}
$result1 = $this->nusoap_client->call('addcontact', array("marcos","de lafuente","hermosillo"));
echo($result1);
// Check for a fault
if ($this->nusoap_client->fault) {
echo '<h2>Fault</h2><pre>';
print_r($result1);
echo '</pre>';
} else {
// Check for errors
$err = $this->nusoap_client->getError();
if ($err) {
// Display the error
echo '<h2>Error</h2><pre>' . $err . '</pre>';
} else {
// Display the result
echo '<h2>Result</h2><pre>';
print_r($result1);
echo '</pre>';
}
}
}
}
I'm trying to do it based
ON THIS TOPIC (Thanks nana.chorage)
I also added this entry to my config/routes.php
$route['Webservice/wsdl']="Webservice/index/wsdl";
And for not to pass unnoticed, I can see my service when I enter this URL:
http://localhost/turismoadmin/index.php/Webservice/wsdl
I really dont know what I'm doing wrong, I have searched a lot around and I can't get rid of it!
Then nusoap client URL should be like this
$this->nusoap_client = new nusoap_client(site_url('Webservice/index?wsdl'), 'wsdl');
Is there a way to show the changed values after saving within the Joomla save method?
For example, when I edit a "maxuser" field and save it, I´d like to show the old and the new value.
I tried this by comparing "getVar" and "$post", but both values are the same.
function save()
{
...
$maxuser1 = JRequest::getVar('maxuser');
$maxuser2 = $post['maxuser'];
...
if($maxuser1 != $maxuser2) {
$msg = "Not the same ...";
}
...
}
It's better to override JTable, not the Model. Heres sample code:
public function store($updateNulls = false) {
$oldTable = JTable::getInstance(TABLE_NAME, INSTANCE_NAME);
$messages = array();
if ($oldTable->load($this->id)) {
// Now you can compare any values where $oldTable->param is old, and $this->param is new
// For example
if ($oldTable->title != $this->title) {
$messages[] = "Title has changed";
}
}
$result = parent::store($updateNulls);
if ((count($messages) > 0) && ($result === true)){
$message = implode("\n", $messages);
return $message;
} else {
return $result;
}
}
This will return message string if there are any, true if there are no messages and save succeeded and false if saving failed. So all you have to do is check returned value in model and set right redirect message.
In the controller you can use the postSaveHook which gives you access to the validated values.
How can we override the error message to be displayed, multiple times for a single validation rule.
I am trying to do that in the following code, but it shows the error message which is set at the end, i.e., 'b'
What I have tried to do here is, display error 'a' for 'first_name' and error 'b' for last_name.
<?php
/*
This program will test whether we could override the codeingiter error messages from the validation helper.
We are going to use the 'set_message' function.
*/
class Message_override extends CI_Controller{
public function __construct(){
parent::__construct();
$this->load->helper('url');
}
public function index(){
$this->load->view('message_override_view');
}
public function display_error(){
$this->load->library('form_validation');
$this->form_validation->set_message('numeric','a');
$this->form_validation->set_rules('txt_first_name', 'First Name', 'numeric');
$this->form_validation->set_message('numeric','b');
$this->form_validation->set_rules('txt_last_name', 'Last Name', 'numeric');
if($this->form_validation->run()==FALSE)
{
print_r(validation_errors());
}
else
{
echo '<pre>';
print_r($_POST);
}
}
}
?>
CodeIgniter doesn't support multiple error messages for the same rule natively, but there's a couple of workarounds you may try:
As #HashemQolami suggests, you can use multiple callback functions and set a different error message for each one:
$this->form_validation->set_rules('txt_first_name', 'First Name', 'callback_numeric_a');
$this->form_validation->set_rules('txt_last_name', 'Last Name', 'callback_numeric_b');
The drawback for this method is that obviously it's not modular but rather repetitive as you'd need to define multiple functions in your controller like this one
public function numeric_a($str){
$this->form_validation->set_message('numeric_a', 'a');
return $this->numeric($str);
}
Another workaround I've used is set the message of the rule as %s in the language file and then setting the custom message as the label of the field
$lang['numeric'] = '%s';
$this->form_validation->set_rules('txt_first_name', 'a', 'numeric');
$this->form_validation->set_rules('txt_last_name', 'b', 'numeric');
The drawback here is that it basically messes up the error messaging system since you'd have to define the label for each field and would only work correctly with one validation rule per field. Still I have found it useful in contact forms where you basically just need to validate the presence of some required fields.
Now since I've found myself in need for a better implementation for this feature, your post inspired me to put together a simple extension to the form validation class, unfortunately I had to "hack" the main execute method since there's no special function for retrieving the error messages.
I added a method set_custom_message() to set a custom message for a rule to a specific field or to an array of fields.
$this->form_validation->set_custom_message('txt_first_name','numeric','a');
$this->form_validation->set_custom_message('txt_last_name','numeric','b');
//Example passing an array of fields
$this->form_validation->set_custom_message(array('txt_first_name','txt_last_name'),'numeric','c');
Here's the code for the extended class in case someone else is interested:
Note that this is based on the form validation class included in CodeIgniter v2.1.4
<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
/**
* MY_Form_validation Class
*
* Extends Form_Validation library
*
* Adds custom message support.
*
*/
class MY_Form_validation extends CI_Form_validation {
protected $_custom_messages = array();
public function set_custom_message($field = '', $rule = '', $message = '' ){
if(is_array($field)){
foreach($field as $id){
$this->_custom_messages[$id][$rule] = $message;
}
return;
}
$this->_custom_messages[$field][$rule] = $message;
return;
}
protected function _execute($row, $rules, $postdata = NULL, $cycles = 0)
{
// If the $_POST data is an array we will run a recursive call
if (is_array($postdata))
{
foreach ($postdata as $key => $val)
{
$this->_execute($row, $rules, $val, $cycles);
$cycles++;
}
return;
}
// --------------------------------------------------------------------
// If the field is blank, but NOT required, no further tests are necessary
$callback = FALSE;
if ( ! in_array('required', $rules) AND is_null($postdata))
{
// Before we bail out, does the rule contain a callback?
if (preg_match("/(callback_\w+(\[.*?\])?)/", implode(' ', $rules), $match))
{
$callback = TRUE;
$rules = (array('1' => $match[1]));
}
else
{
return;
}
}
// --------------------------------------------------------------------
// Isset Test. Typically this rule will only apply to checkboxes.
if (is_null($postdata) AND $callback == FALSE)
{
if (in_array('isset', $rules, TRUE) OR in_array('required', $rules))
{
// Set the message type
$type = (in_array('required', $rules)) ? 'required' : 'isset';
if(array_key_exists($row['field'],$this->_custom_messages) &&
array_key_exists($type,$this->_custom_messages[$row['field']])){
$line = $this->_custom_messages[$row['field']][$type];
}else{
if ( ! isset($this->_error_messages[$type]))
{
if (FALSE === ($line = $this->CI->lang->line($type)))
{
$line = 'The field was not set';
}
}
else
{
$line = $this->_error_messages[$type];
}
}
// Build the error message
$message = sprintf($line, $this->_translate_fieldname($row['label']));
// Save the error message
$this->_field_data[$row['field']]['error'] = $message;
if ( ! isset($this->_error_array[$row['field']]))
{
$this->_error_array[$row['field']] = $message;
}
}
return;
}
// --------------------------------------------------------------------
// Cycle through each rule and run it
foreach ($rules As $rule)
{
$_in_array = FALSE;
// We set the $postdata variable with the current data in our master array so that
// each cycle of the loop is dealing with the processed data from the last cycle
if ($row['is_array'] == TRUE AND is_array($this->_field_data[$row['field']]['postdata']))
{
// We shouldn't need this safety, but just in case there isn't an array index
// associated with this cycle we'll bail out
if ( ! isset($this->_field_data[$row['field']]['postdata'][$cycles]))
{
continue;
}
$postdata = $this->_field_data[$row['field']]['postdata'][$cycles];
$_in_array = TRUE;
}
else
{
$postdata = $this->_field_data[$row['field']]['postdata'];
}
// --------------------------------------------------------------------
// Is the rule a callback?
$callback = FALSE;
if (substr($rule, 0, 9) == 'callback_')
{
$rule = substr($rule, 9);
$callback = TRUE;
}
// Strip the parameter (if exists) from the rule
// Rules can contain a parameter: max_length[5]
$param = FALSE;
if (preg_match("/(.*?)\[(.*)\]/", $rule, $match))
{
$rule = $match[1];
$param = $match[2];
}
// Call the function that corresponds to the rule
if ($callback === TRUE)
{
if ( ! method_exists($this->CI, $rule))
{
continue;
}
// Run the function and grab the result
$result = $this->CI->$rule($postdata, $param);
// Re-assign the result to the master data array
if ($_in_array == TRUE)
{
$this->_field_data[$row['field']]['postdata'][$cycles] = (is_bool($result)) ? $postdata : $result;
}
else
{
$this->_field_data[$row['field']]['postdata'] = (is_bool($result)) ? $postdata : $result;
}
// If the field isn't required and we just processed a callback we'll move on...
if ( ! in_array('required', $rules, TRUE) AND $result !== FALSE)
{
continue;
}
}
else
{
if ( ! method_exists($this, $rule))
{
// If our own wrapper function doesn't exist we see if a native PHP function does.
// Users can use any native PHP function call that has one param.
if (function_exists($rule))
{
$result = $rule($postdata);
if ($_in_array == TRUE)
{
$this->_field_data[$row['field']]['postdata'][$cycles] = (is_bool($result)) ? $postdata : $result;
}
else
{
$this->_field_data[$row['field']]['postdata'] = (is_bool($result)) ? $postdata : $result;
}
}
else
{
log_message('debug', "Unable to find validation rule: ".$rule);
}
continue;
}
$result = $this->$rule($postdata, $param);
if ($_in_array == TRUE)
{
$this->_field_data[$row['field']]['postdata'][$cycles] = (is_bool($result)) ? $postdata : $result;
}
else
{
$this->_field_data[$row['field']]['postdata'] = (is_bool($result)) ? $postdata : $result;
}
}
// Did the rule test negatively? If so, grab the error.
if ($result === FALSE)
{
if(array_key_exists($row['field'],$this->_custom_messages) &&
array_key_exists($rule,$this->_custom_messages[$row['field']])){
$line = $this->_custom_messages[$row['field']][$rule];
}else{
if ( ! isset($this->_error_messages[$rule]))
{
if (FALSE === ($line = $this->CI->lang->line($rule)))
{
$line = 'Unable to access an error message corresponding to your field name.';
}
}
else
{
$line = $this->_error_messages[$rule];
}
}
// Is the parameter we are inserting into the error message the name
// of another field? If so we need to grab its "field label"
if (isset($this->_field_data[$param]) AND isset($this->_field_data[$param]['label']))
{
$param = $this->_translate_fieldname($this->_field_data[$param]['label']);
}
// Build the error message
$message = sprintf($line, $this->_translate_fieldname($row['label']), $param);
// Save the error message
$this->_field_data[$row['field']]['error'] = $message;
if ( ! isset($this->_error_array[$row['field']]))
{
$this->_error_array[$row['field']] = $message;
}
return;
}
}
}
// END MY Form Validation Class
/* End of file MY_Form_validation.php */
/* Location: ./application/libraries/MY_Form_validation.php */
}