Severity Notice: Undefined offset - codeigniter

With some changes I got the error, This work fine in raw php but in codeigniter I'm trying to get this result_array in a while(list), but I don't know what would be the alternative for fetch_row in codeigniter. Please help me to get this in a way at while (list($d, $sn, $s) = each($IDS-)) line.
Model:
public function raw_attendance_Data() {
$this->db->select('attnDate, TraineeID, Status');
$this->db->from('tbl_attendance');
$this->db->order_by('TraineeID');
$query = $this->db->get();
return $query->result_array();
}
Controller:
public function rawAttendance(){
$data['IDS'] = $this->AttendanceModel->raw_attendance_Data();
$this->load->view('attendance/rawAttendance', $data);
}
View:
$curname='';
$tdata = '';
reset($IDS);
while (list($d, $sn, $s) = each($IDS)) {
if ($curname != $sn) {
if ($curname) {
$tdata .= "<tr><td>$curname</td><td>" . join('</td><td>', $rowdata). "</td></tr>\n";
}
$rowdata = $emptyRow;
$curname = $sn;
}
$rowdata[$d] = $s;
}
$tdata .= "<tr><td>$curname</td><td>" . join('</td><td>', $rowdata). "</td></tr>\n";

$query->result_array(); returns an array and not an object. Thus the $IDS in $IDS->fetch_row() is an array (a non-object).
I don't understand, where you are getting the function fetch_row()?
If I understand what you are trying to accomplish then this should work.
View:
$tdata = '';
foreach($IDS as $row)
{
$curname = isset($row['TraineeID']) ? $row['TraineeID'] : "";
$date = isset($row['attnDate']) ? $row['attnDate'] : "";
$status = isset($row['Status']) ? $row['Status'] : "";
if(!empty($curname){
$tdata .= "<tr><td>$curname</td><td>$date</td><td>$status</td></tr>";
}
}

Related

message: undefined variable in view

I am trying to get the data in my view in codeigniter but it gives me a Message: Undefined variable: topics_array
here is my model :
public function studentTopics($courseId, $periodId)
{
$this->dbi->select('topicitem.TopicItemID, topicItem.Content');
$this->dbi->from('topicitem, topics, periods');
$this->dbi->where('topics.PeriodItemID', $periodId)
->where('topics.TopicItemID = topicitem.TopicItemID')
->where('topics.PeriodItemID = periods.PeriodItemID')
->where('periods.CourseID', $courseId);
$res = $this->dbi->result_array();
return $res;
}
here is my controller
public function student_topic($courseId, $periodId)
{
$this->load->library('table');
$this->load->model('Student_model');
$data['topics_array'] = $this->Student_model->studentTopics($courseId, $periodId);
$this->load->view('Student/StudentView', $data);
}
and my view
<?php
$courseID = $this->uri->segment(4);
$periodID = 1;
foreach ($topics_array as $key =>$value) {
echo "<tr>
<td>".$value['Content']. "</td>
</tr>"; }?>
You seem to be missing a get().
$res = $this->dbi->get()->result_array();
return $res;
Hope this will help you :
change this line of code : $res = $this->dbi->result_array();
$this->dbi->select('topicitem.TopicItemID, topicItem.Content');
$this->dbi->from('topicitem, topics, periods');
$this->dbi->where('topics.PeriodItemID', $periodId)
->where('topics.TopicItemID = topicitem.TopicItemID')
->where('topics.PeriodItemID = periods.PeriodItemID')
->where('periods.CourseID', $courseId);
$query = $this->dbi->get(); // missing this line of code
$res = $query->result_array();
for more : https://www.codeigniter.com/user_guide/database/query_builder.html#looking-for-specific-data

joomla - router change url when getting the name of product

I have build my own component in joomla and client wants now a friendly urls f.e
website.com/someplace/{product-id}-{product-name}. So i Build my own router like this.
function componentBuildRoute(&$query)
{
$segments = [];
if (isset($query['view'])) {
$segments[] = "szkolenie";
unset($query['view']);
}
if (isset($query['product_id'])) {
$productName = JFilterOutput::stringURLSafe(strtolower(getProductName($query['product_id'])));
$newName = $query['product_id'] . '-' . $productName;
$segments[] = $newName;
unset($query['product_id']);
}
return $segments;
}
and parse route function
function componentParseRoute($segments)
{
$app = JFactory::getApplication();
$menu = $app->getMenu();
$item =& $menu->getActive();
$count = count($segments);
switch ($item->query['view']) {
case 'catalogue' : {
$view = 'training';
$id = $segments[1];
}
break;
}
$data = [
'view' => $view,
'product_id' => $id
];
return $data;
}
While on the end of buildroute function segments are ok I have exactly what I want that on the beginning of parse route I have something like
website.com/szkolenie/1-krakow <-- I dont know wtf is this krakow( I know it is city i Poland) but still where is it get from ? The getProductName function implementation is
function getProductName($productId)
{
$db = JFactory::getDbo();
$query = $db->getQuery(true);
$query->select('#__component_training.id as id, #__component_product' . name)
->from($db->quoteName('#__component_training'))
->where('#__s4edu_product.product_id = ' . $productId)
->leftJoin('#__component_product ON
#__component_training.product_id=#__component_product.product_id');
$training = $db->loadObject();
return trim($training->name);
}
So taking all this into consideration I think that something is happening between the buildRoute and parseRoute, something what filters the $segment[1] variable, but how to disable that and why is it happening ?
P.S
Please do not send me to https://docs.joomla.org/Joomla_Routes_%26_SEF
I already know all the tutorials on joomla website which contains anything with sef.
P.S.S
It is built on joomla 3.7.0
You do not have a product named "krakow" ?
If not you can try to remove the $productName from the build function, just to check if this "krakow" is added automaticaly or it's from the getProductName() function.
Also i noticed that you have an error i guess in the function getProductName()
->where('#__s4edu_product.product_id = ' . $productId)
It's should be
->where('#__component_product.product_id = ' . $productId)

CodeIgniter pass variables form controller to model

Ok I want to pass two variables from a controller to a model but I get some kind of error. Am I passing variables on right way? My syntax is:
Controller:
public function add_tag(){
if(isset($_POST['id_slike']) && isset($_POST['id_taga'])){
$slika = $_POST['id_slike'];
$tag = $_POST['id_taga'];
$this->load->model("Member_model");
$res = $this->Member_model->add_tags($slike, $tag);
foreach ($res->result() as $r){
echo $r->name;
}
}
else{
echo "";
}
}
Model:
public function add_tags(){
$data = array(
'tags_id' => $tag ,
'photos_id' => $slika
);
$check = $this->db->query("SELECT tags_id,photos_id FROM bridge WHERE bridge.tags_id='{$tag}' AND bridge.photos_id={$slika} ");
if($check->num_rows()==0){
$this->db->insert('bridge',$data);
$res = $this->db->query("SELECT name FROM tags where `tags`.`id`='{$tag}' ");
return $res;
}
}
you are passing variables correctly, but do not get them correctly in the model, which should look like this:
public function add_tags($slike, $tag){
//your other code
}
The following code write on the controller file:-
$data = array();
$this->load->model('dbmodel');
$data['item'] = $this->dbmodel->getData('*','catagory',array('cat_id'=>21));
$this->load->view('listing_view', $data);
The following code write on the dbmodel file:-
public function getData($cols, $table, $where=array()){
$this->db->select($cols);
$this->db->from($table);
$this->db->where($where);
$query = $this->db->get();
$result = $query->result();
return $result;}

select fails in custom model codeigniter 2

I have a problem with database select function, in my custom model. This is the code
class MY_Model extends CI_Model
{
public function __construct()
{
parent::__construct();
$this->load->database();
$this->load->helper('inflector');
}
public function fetch($parameters = array(), $raw = FALSE)
{
$tablename = $this->getTableName();
$this->select_fields(FALSE == empty($parameters['fields']) ? $parameters['fields'] : FALSE);
unset($parameters['fields']);
if (FALSE == empty($parameters['limit'])) $limit = $parameters['limit'];
if (FALSE == empty($parameters['offset'])) $offset = $parameters['offset']; else $offset = 0;
unset($parameters['limit']);
unset($parameters['offset']);
if (FALSE == empty($limit))
{
$this->db->limit($limit, $offset);
}
$this->parseFilters($parameters);
$query = $this->db->get($tablename);
if ($query->num_rows() > 0)
{
if ($raw)
return $query;
$rows = $query->result();
$objects = array();
foreach ($rows as $row)
$objects[] = $this->hidrate($row);
return $objects;
}
else
{
return array();
}
}
protected function select_fields($fields)
{
if (TRUE == empty($fields))
{
$fields = "`" . $this->getTableName() . "`.*";
}
$this->db->select($fields);
}
public function fetchOne($parameters = array())
{
$parameters['limit'] = 1;
$list = $this->fetch($parameters);
if (FALSE == empty($list))
{
return reset($list);
}
else
{
return null;
}
}
Expecifict in $this->db->select($fields);
Fatal error: Call to a member function select() on a non-object
The model is a custom model and the applicacions model extends of this model. The question is why throws that error the database is correct.
I have a MY_loader create in codeginiter 1.7 and I try update to codeigniter 2
class MY_Loader extends CI_Loader
{
function model($model, $name = '', $db_conn = FALSE)
{
if (is_array($model))
{
foreach($model as $babe)
{
$this->model($babe);
}
return;
}
if ($model == '')
{
return;
}
if ( substr($model, -4) == '_dao' )
{
return parent::model('dao/' . $model, $name, $db_conn);
}
parent::model( 'dao/' . $model . '_dao', $model, $db_conn);
include_once APPPATH . '/models/' . $model . EXT;
}
}
I don't know how update this model to codeigniter 2 and I believe this Loader generates error with my MY_Model
I'll try troubleshooting why does db return as a non-object.
I'd remove all code and start with a simple select(), if that works, I'll start adding code gradually and see where it breaks.
everything seems to be in order but first you'll need to see if the basic functionality exists.
so
1)remove all code, see if a basic select() works, if it doesn't, troubleshoot further.
2)if it does, keep adding code and see what breaks the select() statement.
3)keep adding code until you spot the issue.

codeigniter pagination error 404

I have Admin controller in codeigniter
class Admin extends CI_Controller {
function __construct() {
parent::__construct();
if (!$this->tank_auth->is_logged_in()) redirect('login');
$this->load->library('pagination');
}
function index() {
$offset = $this->uri->segment(2);
$config['per_page'] = 3;
$data['sitetitle'] = 'Výpis jobů';
$data['listings'] = $this->Jobs_model->get_listings(0,$user_id = FALSE,$config['per_page'],$offset);
$config['uri_segment'] = 2;
$config['base_url'] = base_url().'admin/';
$config['total_rows'] = $this->db->count_all_results('jobs');
$this->pagination->initialize($config);
$this->template->set('title', 'Domovská stránka');
$this->template->load('template', 'site', $data);
}
}
and Jobs_model
function get_listings($category, $user_id = false, $limit = 0, $offset = 0) {
$data = array();
$this->db->order_by('id', 'desc');
$q = $this->db->get('jobs');
if ($category) {
$options = array('category' => $category);
$this->db->order_by('id', 'desc');
$this->db->where('category', $category);
$q = $this->db->get('jobs', $limit, $offset);
}
else {
$query = $this->db->order_by('id', 'desc');
if ($user_id) $query = $query->where('user_id', $user_id);
$q = $query->get('jobs',$limit, $offset);
}
if ($q->num_rows() > 0) {
foreach ($q->result_array() as $row) {
$data[] = $row;
}
}
$q->free_result();
return $data;
}
first page in paginatiom obtain data, but links generating in pagination localhost/sitename/admin/3 produce 404 error.
Where is problem in my script
You need to change:
$config['base_url'] = base_url().'admin/';
To:
$config['base_url'] = base_url().'admin/index/';
If you need the url to be like admin/3, you can use a route or _remap.
Side note: consider using this to get your page number rather than the URI class:
function index($offset = 0) {
// your code
}
It will do the same thing, but it's convenient to use the controller method arguments when possible.
You need to do some change.
$config['base_url']=base_url().'admin/index';
change
$config['uri_segment'] = 3;
check if you are using .htaccess or not. If you aren't, then $config['base_url'] in above should be
$config['base_url']=base_url().'index.php/admin/index';
If you get 404 error on codigniter paggination please check follwing things :
1 ) Check your controller it's index or somthing else if it's index then base_url should be :
base_url().'admin/index/pages' and if it's somethings else it should be :
base_url().'admin/somethingelse/pages'
2 ) Check 'uri_segment' by $this->uri->segment(4) so by this you got the page number then else will do the codiegniter.

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