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;}
Related
How do I get an image stored in a field of my database, and put it into a variable for using it in an email message like a signature?
Here is my code:
//Model user_model
function getImage(){
$this->db->select("image");
$this->db->where("$id", user_id);
$query = $this->db->get("users");
if($query->num_rows()>0){
return result();
}else{
return false;
}
}
//Controller user_controller
function image(){
this->load->model("user_model");
$id = $this->session->userdata('id');
$image = $this->user_model->getImage($id);
echo $image;
}
Here is a example
Model user_model
// Pass the id function
function getImage($id){
$this->db->where($id, 'user_id');
$query = $this->db->get("users");
if($query->num_rows()>0){
return $query->row_array();
}else{
return false;
}
}
Controller user_controller
function image(){
$this->load->model("user_model");
$somedata = $this->user_model->getImage($this->session->userdata('id'));
$data['image'] = $somedata['image'];
$this->load->view('someview', $data);
}
On view
<?php echo $image;?>
Here is my model:
public function count_diabetic(){
$query = $this->db->query("Select count(diabetic) as count_diabetic from member where diabetic is not NULL");
return $query->result_array();
}
public function count_hypertensive(){
$query = $this->db->query("Select count(hypertensive) as count_hypertensive from member where hypertensive is not NULL");
return $query->result();
}
here is my controller:
public function home(){
$this->load->model('Jsv_model');
$data = array(
'count_diabetic' => $this->Jsv_model->count_diabetic(),
'count_hypertensive' => $this->Jsv_model->count_hypertensive()
);
$this->session->set_userdata($data);
$this->load->view('home');
}
Here is my view with in php tag:
echo $this->session->userdata('count_diabetic');
But Here it shows error that array to string conversion error..
please help me
Inside count_diabetic() you should change $query->result_array()
into
$query->row()->count_diabetic,
it would return number of count only not array.
Do it to count_hypertensive() too.
In PHP, you can display arrays by using the print_r function instead of echo.
For example, you have to change your code to:
print_r($this->session->userdata['count_diabetic']);
You are doing it wrong in this line.
echo $this->session->userdata('count_diabetic');
What should you do?
// To Set a Data in Session
$session_data = array(
'count_diabetic' => $this->Jsv_model->count_diabetic(),
'count_hypertensive' => $this->Jsv_model->count_hypertensive()
);
$this->session->set_userdata('user_data', $session_data);
// To get the session data
$session_data = $this->session->userdata('user_data');
$user_name = $session_data['username'];
$count_diabetic = $session_data['count_diabetic'];
$count_hypertensive = $session_data['count_hypertensive'];
I have this doubt.
// This is my controller
public function profile()
{
$session_data = $this->session->userdata('logged_in');
$uid= $session_data['id'];
$pic = $this->user_model->getImage($uid);
$data['profile_pic']= $pic ;
$data['row'] = $this->user_model->get_user_data($uid);
$test = $this->load->view('profile_view',$data,TRUE);
echo $test;exit;
}
Based on name it seems to be:
public function profile()
{
$session_data = $this->session->userdata('logged_in');//checking user login or not
$uid= $session_data['id'];//getting id from session
$pic = $this->user_model->getImage($uid);//geting user image
$data['profile_pic']= $pic ;//storing image to data array
$data['row'] = $this->user_model->get_user_data($uid);//passing $uid to model and store in data array what row model returns
$test = $this->load->view('profile_view',$data,TRUE);//passing data array to view
echo $test;exit;
}
//model
i am passing user id only
public function get_user_data($uid){
//echo $uid;exit;
$data = array();
$this->db->select('*');
$this->db->from('user');
$this->db->where('id',$uid);
$query = $this->db->get();//checking that $uid data in database
if($query->num_rows() > 0){
$get_user_data=$query->result();
//print_r($get_user_data);exit;
//print_r($items);exit;
return $get_user_data; // if find, return data to controller
}
else{
return FALSE;
}
//return $query->row();
}
codeIgniter form_dropdown() function can receive only associative array but I have multi dimension array by using result_array() function. How can I fetch my data on form_dropdown() function?
Let's say you want a dropdown of items, using result_array():
$query = $this->db->query("SELECT id, item_name FROM items");
$options = array();
foreach ($query->result_array() as $row){
$options[$row['id']] = $row['item_name'];
}
echo form_dropdown('my_items_dropdown', $options, '1');
I have extended the class DB_result.php in system/database with this new function
public function dropdown_array($id_field = FALSE, $list_field = FALSE)
{
$result = array();
if ($id_field === FALSE || $list_field === FALSE) return $result;
$array = $this->result_array();
foreach ($array as $value) {
$result[$value[$id_field]] = $value[$list_field];
}
return $result;
}
Now you can simply call from every Model class your new function to generate a dropdown-compliant array like this:
$customers = $this->db->get('customers');
$result = $customers->dropdown_array('id', 'name');
return $result;
how to show data from 3 tables in one view, because using JTable i can show data only bind to that JTable, please help me with this one.
my code so far(not working) in models:
public function getEntireProject(){
$item_id = $this->getItem()->id;
$db =& JFactory::getDBO();
$query = $db->getQuery(true);
$query->select('*');
$query->from('#__project_part_1 AS a');
$query->leftJoin('#__project_part_2 AS u ON a.uuid = u.uuid');
$query->leftJoin('#__project_part_3 AS y ON a.uuid = y.uuid');
$query->where('a.id = '. (int) $item_id);
$db->setQuery($query);
return $db->loadResult();
}
protected function loadFormData()
{
// Check the session for previously entered form data.
$data = JFactory::getApplication()->getUserState('com_web_projects.edit.webproject.data', array());
if (empty($data)) {
$data = $this->getEntireProject();
}
return $data;
}
try to overwrite getItem function.This will also be helpful if you are calling get('Item') in view. -
public function getItem($pk = null){
if ($item = parent::getItem($pk)) {
$db =& JFactory::getDBO();
$query = $db->getQuery(true);
$query->select('*');
$query->from('#__project_part_1 AS a');
$query->leftJoin('#__project_part_2 AS u ON a.uuid = u.uuid');
$query->leftJoin('#__project_part_3 AS y ON a.uuid = y.uuid');
$query->where('a.id = '. (int) $item->id);
$db->setQuery($query);
$item = $db->loadAssoc();
}
return $item;
}
protected function loadFormData()
{
// Check the session for previously entered form data.
$data = JFactory::getApplication()->getUserState('com_web_projects.edit.webproject.data', array());
if (empty($data)) {
$data = $this->getItem();
}
return $data;
}
For Multi-Row Results use loadRowList(), loadAssocList(), loadAssocList($key), loadObjectList(), loadObjectList('key'). $db->loadResult() only load one result. Read more.
If I understand your question right this should fix your problem. If you not please ask.