So here is my code in controller:
public function logged_in()
{
if($this->input->post('log_out'))
{
$this->session->unset_userdata('username');
redirect(base_url()."main_c");
}
if(!$this->session->userdata('username'))
{
redirect(base_url()."main_c/login");
}
$this->load->model('main_m');
$data = $this->main_m->get_user();
$this->load->view('logged_in_v', $data);
}
and here is my model code:
public function get_user()
{
$query = $this->db->get('user');
return $query->result();
}
So basically what I want to do is to make a loop in viewer and output every single object which are in $data. So my question is: How to transfer array in viewer to make my viewer look something like this:
foreach($data as $ob)
{
echo "username: ".$ob->username." ";
echo "password: ".$ob->password;
echo "</br>";
}
Your controller code should be :
public function logged_in()
{
if($this->input->post('log_out'))
{
$this->session->unset_userdata('username');
redirect(base_url()."main_c");
}
if(!$this->session->userdata('username'))
{
redirect(base_url()."main_c/login");
}
$this->load->model('main_m');
$data['data'] = $this->main_m->get_user();
$this->load->view('logged_in_v', $data);
}
Do something like this in the controller-->
$this->load->model('main_m');
$data['users'] = $this->main_m->get_user();
$this->load->view('logged_in_v', $data);
And then in the view-->
foreach($users as $ob)
{
echo "username: ".$ob->username." ";
echo "password: ".$ob->password;
echo "</br>";
}
Related
I am creating register webservice in Codeigniter. I want to get the response in json format, if the registration is successfull then the data will be returned in json format and if the data is already present then the json response will be returned. I have confusion in how to pass value from controller to view and convert it into json response. Below is my code:
Controller:
<?php
session_start(); //we need to start session in order to access it through CI
Class User_Signup extends CI_Controller {
public function __construct() {
parent::__construct();
// Load form helper library
$this->load->helper('form');
// Load form validation library
$this->load->library('form_validation');
// Load session library
$this->load->library('session');
// Load database
$this->load->model('signup_model');
}
public function registration($fname,$lname,$email) {
$data=array('first_name' => $fname,'last_name' => $lname,'email' => $email);
$result = $this->signup_model->registration_insert($data);
if ($result == TRUE) {
$this->load->view('signup_message',$data);
} else {
$this->load->view('signup_message',$data);
}
}
}
Signup_model (Model):
<?php
Class Signup_Model extends CI_Model {
// Insert registration data in database
public function registration_insert($data) {
// Query to check whether username already exist or not
$condition = "email =" . "'" . $data['email'] . "'";
$this->load->database();
$this->db->select('*');
$this->db->from('user');
$this->db->where($condition);
$this->db->limit(1);
$query = $this->db->get();
if ($query->num_rows() == 0) {
// Query to insert data in database
$this->db->insert('user', $data);
if ($this->db->affected_rows() > 0) {
return true;
}
} else {
return false;
}
}
}
?>
View:
<?php
/* output in necessary format */
if ($format == 'json')
{
//header('Content-type: application/json');
echo str_replace('\/', '/', json_encode($posts));
} else
{
header('Content-type: text/xml');
echo '<posts>';
foreach ($posts as $index => $success)
{
if (is_array($success))
{
foreach ($success as $key => $value)
{
echo '<', $key, '>';
if (is_array($value))
{
foreach ($value as $tag => $val)
{
echo '<', $tag, '>', htmlentities($val), '</', $tag, '>';
}
}
echo '</', $key, '>';
}
}
}
echo '</posts>';
}
?>
http://localhost/MyProject/user_signup/registration/Amit/Kumar/amit
The view is unnecessary for returning json. Just return json_encode($your_object) right from the controller.
Either way, the method you are looking for is json_encode().
This my controller:
public function doDelete($id_jeans)
{
$where = array("id_jeans" => $id_jeans);
$res = $this->admin_model->DeleteData('jeans', $where);
}
This my model:
public function DeleteData($tabelname, $where)
{
if ($this->db->delete($tabelname, $where)) {
redirect("admin/admin/index");
}else {
echo "tidak berhasil";
}
$res = $this->db->delete($tabelname, $where);
return $res;
}
How can I delete an image with CodeIgniter?
You are only removing data from a table. If you want to delete a file from a directory:
public function DeleteData($tabelname, $where, $path_to_file)
{
if ($res = $this->db->delete($tabelname, $where)) {
unlink($path_to_file);
redirect("admin/admin/index");
}else {
echo "tidak berhasil";
}
}
i am trying to create a readmore function in codeigniter where the readmore link will be linked to a controller which would show all the data about that particular id....i am kind of confused on how to go about it... i tried...
<?php
$research_detail_url = site_url()."/research/research_details";
//echo json_encode($research)
if($research)
{
foreach ($research as $_research) {
$author = $_research->author;
$content = $_research->content;
$dsubmitted = $_research->dsubmitted;
echo "<div class='menu-collapse'> <h5>$author</h5>";
echo "<p>";
echo "<span class='support_text'>$content <span><br />";
echo "<span class='support_text'>$dsubmitted <span><br />";
echo "<a href='$research_detail_url' target='_blank' style='text-decoration:underline; color:#0088cc;'>
read more ยป </a>";
echo "</p> </div>";
}
}
?>
but i seem not be getting any results...i need help...
and this is my controller function.....
public function research_details($id='')
{
if(!$id)
{
echo "Project Id required";
return;
}
$_result = $this->projects_model->get_project($id);
if($_result)
{// success in fetching data hurray
$result['projects'] = $_result;
$users_ids = $this->users_model->get_user_ids(); //return available user id's
$groups_ids = $this->groups_model->get_group_ids(); //return available group id's
//echo json_encode($users_ids);
//echo json_encode($groups_ids);
$group_record = $this->map_names_to_ids($users_ids , $groups_ids );
$result['group_record'] = $group_record;
//load the view
$this->load->view('__includes__/header');
$this->load->view('__includes__/boostrap_responsive');
$this->load->view('projects/project_panel', $result);
$this->load->view('__includes__/footer_scripts');
$this->load->view('__includes__/wijmo_file_jquery');
$this->load->view('__includes__/footer');
}
else
{
exit("An Error occured in fetching the requested project");
}
}
and this is my model.....
<?php
class research_model extends CI_Model {
function add()
{
$this->db->insert('research',$_POST);
if($this->db->_error_number())
{
return $this->db->_error_number();
}
}
function update($article_id, $data_fields = NULL){
if($data_fields == NULL)
{
$this->db->where("article_id =".$article_id);
$this->db->update('research',$_POST);
}
else
{
$this->db->where("article_id =".$article_id);
$this->db->update('research',$data_fields);
}
$is_error = $this->db->_error_number();
if($is_error){
echo $is_error;
}
return TRUE;
}
function delete($id){
$this->db->where("article_id =".$id);
return $this->db->delete('research');
}
//return the research with this id
function get_research($id){
$this->db->where("article_id =".$id);
$query = $this->db->get('research');
if ($query->num_rows() > 0){
return $query->row_array();
}
else
echo $this->db->_error_message();
return FALSE;
}
//return the available research in the table
function get_research_all(){
$query = $this->db->get('research');
if ($query->num_rows() > 0)
{
foreach($query->result() as $row)
{
$result[] = $row;
}
return $result;
}
}
}
and my entire controller.....
<?php
class Research extends Public_Controller
{
function __construct()
{
parent::__construct();
$this->load->model('research_model');
}
function index()
{
if($this->ion_auth->is_admin())
{
$result = $this->research_model->get_research_all();
$data = array(
'main_content' => 'research/index',
'research' => $result
);
$this->load->view("loader", $data);
}
else
{
redirect('home');
}
}//END INDEX
// public view
function current()
{
$result = $this->research_model->get_research_all();
$data = array('research' => $result);
$this->load->view('__includes__/header');
$this->load->view('__includes__/navbar');
$this->load->view('research/current', $data);
$this->load->view('__includes__/footer');
}
function add()
{
if($this->ion_auth->is_admin())
{
$this->load->view("loader",array('main_content'=>"research/add_research"));
}
}//END ADD
function edit($id='')
{
if(! $id)
{
echo "research Id required";
return;
}
$result = $this->research_model->get_research($id);
if( ! $result)
{
echo "Nothing to edit";
return;
}
$result['main_content'] = "research/add_research";
$this->load->view("loader",$result);
}//END EDIT
function delete($id='')
{
if(! $id)
{
echo "Id required";
return;
}
$this->research_model->delete($id);
$this->get_research();
}//END DELETE
function submit($id='')
{
//validate form [perform validation server-side to make sure of fields]
$this->load->library('form_validation');
$this->form_validation->set_rules('author', 'Author', 'trim|required|min_length[4]');
if ($this->form_validation->run() == FALSE){
//ajax data array
$data = array(
'server_validation' => validation_errors()
);
echo str_replace('\\/', '/', json_encode($data));
}
else{
if($id){
$result = $this->research_model->update($id);
$content = "article has been UPDATED successfully";
//$retArr["content"] = $content;
//echo json_encode($retArr);
}
else{
$result = $this->research_model->add();
$content = "article has been CREATED successfully";
//$retArr["content"] = $content;
//echo json_encode($retArr);
}
//if duplicate key
if($result == 1062){
//ajax data array
$data = array();
$data['is_valid'] = 0;
echo json_encode($data);
}else{
//ajax data array
$data = array(
'is_valid' => 1,
'content' => $content
);
echo json_encode($data);
}
}//end ELSE form valid
}//END SUBMIT
public function research_details($id='')
{
if(!$id)
{
echo "Project Id required";
return;
}
$_result = $this->research_model->get_research($id);
if($_result)
{// success in fetching data hurray
$result['article'] = $_result;
//load the view
$this->load->view('__includes__/header');
$this->load->view('__includes__/boostrap_responsive');
$this->load->view('research/research_details', $Aresult);
$this->load->view('__includes__/footer_scripts');
$this->load->view('__includes__/wijmo_file_jquery');
$this->load->view('__includes__/footer');
}
else
{
exit("An Error occured in fetching the requested project");
}
}//END EDIT
}
?>
my public controller
<?php
abstract class Public_Controller extends CI_Controller
{
public $about_data;
function __construct()
{
parent::__construct();
//Making This variable availale for the whole site
$this->load->model('about_model');
$this->load->model('captcha_model');
//get your data
$this->about_data = $this->about_model->get_abouts();
}
}
?>
I see a couple of problems:
In your view, you are not closing the span tags. You need
</span>
In your view, you are creating the link, but you are not
including an ID, which you need in your controller. What I mean by this is the following:
First,you create this $research_detail_url = site_url()."/research/research_details";.
Then echo "<a href='$research_detail_url' target='_blank' style=''>read more</a>";
As you can see, your URL does not have an ID when created. What you should do is something like this: $research_detail_url = site_url()."/research/research_details/31"; where 31 is a random ID. You need to come up with the right ID needed in order to pass it to your controller. Your controller is currently assigning a blank ID since none is being passed which is why you end up with a result of "Project Id required"
I am trying to write a function to insert, update, and delete data. I can insert data, but can't update the data. The problem is I can't pass id value to my updateform.
Controller:
function update($id = 0){
$this->load->helper('form');
$this->load->helper('html');
$this->load->model('employees_model');
if($this->input->post('upsubmit')){
echo '<pre>';print_r($id);echo '</pre>';
exit();
if($this->input->post('eid')){
$this->employees_model->entry_update();
}
}
$data = $this->employees_model->general();
if((int)$id > 0){
$query =this->employees_model->get($id);
$data['txt_id']['value'] = $query['eid'];
$data['txt_name']['value'] = $query['ename'];
$data['txt_salary']['value'] = $query['esalary'];
$data['txt_emailid']['value'] = $query['eemailid'];
}
$this->load->view('employees_update',$data);
}
Model:
function general(){
$data['base'] = $this->config->item('base_url');
$data['css'] = $this->config->item('css');
$data['id']['value'] = 'eid';
$data['name'] = 'txt_name';
$data['salary'] = 'txt_salary';
$data['emailId'] = 'txt_email';
return $data;
}
function entry_update($id){
$this->load->database();
echo '<pre>';print_r($id);echo '</pre>';
exit();
$data = array(
'ename'=>$this->input->post('txt_name'),
'esalary'=>$this->input->post('txt_salary'),
'eemailid'=>$this->input->post('txt_email'),
);
echo '<pre>';print_r($data);echo '</pre>';
exit();
$this->db->where('eid',$this->input->post($data));
$this->db->update('employee',$data);
//echo '<pre>';print_r($data);echo '</pre>';
echo "Updated successfully";
}
function get($id)
{
$this->load->database();
$query = $this->db->get_where('employee',array('eid'=>$id));
return $query->row_array();
}
Please suggest how to pass Select id values to update form page in views section.
Here is my working sample code. Hopes it helps.
controller
//I am using update from to preload data
function update_form($id)
{
$query=$this->product_model->get($id);
$data['id']=$query['id'];
$data['name']=$query['name'];
$data['price']=$query['price'];
$this->load->view('products/update_product',$data);
}
function update()
{
$this->product_model->save();
redirect('products/index');
}
Model
function get($id=0)
{
if($id==0)
{
$query=$this->db->get('product');
return $query->result_array();
}
else
{
$this->db->where('id',$id);
$query=$this->db->get('product');
return $query->row_array();
}
}
// if **id** is greater than zero mean update, no **id** mean insert
function save()
{
$id=$this->input->post('id');
$name=$this->input->post('name');
$price=$this->input->post('price');
$data=array
(
'name'=>$name,
'price'=>$price
);
if($id>0)
{
$this->db->where('id',$id);
$this->db->update('product',$data);
}
else
{
$this->db->insert('product',$data);
}
}
}
View (view/products/update_product.php)
<?php echo form_open('products/save');?> //form_open('controller_name/function_name');
<?php echo form_hidden('id',$id);?>
<?php echo form_input('name',$name,'placeholder="enter doctor name"');?><br>
<?php echo form_input('price',$pricce,'placeholder="enter doctor phone number"');?><br>
<?php echo form_submit('','Update');?>
<?php echo form_close();?>
id play vita role in updating , you shouldn't include it in View as Hidden Field
At first you created function with parameter $id. But when you call the function without parameter.
change this line
in Controller change this line
$this->employees_model->entry_update();
to
$this->employees_model->entry_update($this->input->post('eid'));
In Model Change this line:
$this->db->where('eid',$this->input->post($data))
to
$this->db->where('eid',$this->input->post('eid'));
Change your update function like as below:
function update($id = 0){
$this->load->helper('form');
$this->load->helper('html');
$this->load->model('employees_model');
if($this->input->post('upsubmit')){
$id= $this->input->post('eid');
if($this->input->post('eid')){
$this->employees_model->entry_update();
}
}
$data = $this->employees_model->general();
if((int)$id > 0){
$query =this->employees_model->get($id);
$data['txt_id']['value'] = $query['eid'];
$data['txt_name']['value'] = $query['ename'];
$data['txt_salary']['value'] = $query['esalary'];
$data['txt_emailid']['value'] = $query['eemailid'];
}
$this->load->view('employees_update',$data);
}
I am working on a codeigniter site, in which a page is built using multiple views, I have come to a point where I need to work with a variable that is being set in another view is it possible to access it from another view?
This is code I have
Controller:
public function index() {
// $this->output->enable_profiler(TRUE);
$data = array();
if($query = $this->category_model->get_all_online()) {
$data['main_menu'] = $query;
}
$this->load->model('image_model');
/*
* Sort out the users backgrounds, basically do a check to see if there is a 'special' background
* if there is not a 'special' background then IF the user is logged in and has a background of there
* own show that one, if not show a generic one, if they are not logged in show a bang one
*/
$image = array();
if ($query = $this->image_model->get_special_backgrounds()) {
$image['special'] = $query;
} elseif(!isset($image['special']) && !isset($this->session->userdata['user_id'])) {
if($query = $this->image_model->get_mysite_background()) {
$image['generic'] = $query;
}
}
if(isset($this->session->userdata['user_id'])) {
if($query = $this->image_model->get_user_backgrounds($this->session->userdata['user_id'])) {
$image['user_background'] = $query;
}
}
$data = array_merge($data, $image);
$this->load->view('home/main_page.php', array_merge($data, $image));
}
Model:
public function get_mysite_background() {
$this->db->select('*');
$this->db->from('background');
$this->db->where('users_user_group_group_id', 1);
$this->db->where('is_special', 0);
$query = $this->db->get();
return $query->result_array();
}
public function get_special_backgrounds() {
$this->db->select('*');
$this->db->from('background');
$this->db->where('is_special', 1);
$query = $this->db->get();
return $query->result_array();
}
public function get_user_backgrounds($user_id) {
$this->db->select('*');
$this->db->from('background');
$this->db->where('users_user_id', $user_id);
$this->db->where('is_special', 0);
$query = $this->db->get();
return $query->result_array();
}
The Views in Question: Firstly where the variable is getting set,
</div>
<div id="background-select">
<?php
$count = 0;
if(isset($special)) {
foreach ($special as $row) {
$count ++;
print '<div class="select">';
print "<a href='index.php/home/category/".$row['background_id']."'>$count</a>";
print '</div>';
if($count = 1) {
$background = $row['background_name'];
}
}
}
if(isset($generic)) {
foreach ($generic as $row) {
$count ++;
print '<div class="select">';
print "<a href='index.php/home/category/".$row['background_id']."'>$count</a>";
print '</div>';
if($count = 1) {
$background = $row['background_name'];
}
}
}
if(isset($user_background)) {
foreach ($user_background as $row) {
$count ++;
print '<div class="select">';
print "<a href='index.php/home/category/".$row['background_id']."'>$count</a>";
print '</div>';
if($count = 1) {
$background = $row['background_name'];
}
}
}
?>
And where I want to use the variable:
<body>
<div id="wrapper" style=<?php echo"background:url(/media/uploads/backgrounds/".$background.");";?>>
The variable I looking to use $background
You can use the following helper class to transfer the values from one view to another:
class VarStore {
private static $values = array();
public static function get($key, $default = NULL) {
return (isset(self::$values[$key])? self::$values[$key] : $default);
}
public static function set($key, $value) {
self::$values[$key] = $value;
}
}
Call VarStore::set('background', $background); in the first view and $background = VarStore::get('background'); in the second.
Most of the problems in programming are conceptual and of understanding... The point is a View is to VIEW the data and not calculate it. calculations are carried out in models whose functions can be called by multiple modules when required. So better is before a view is called work-out all the data it has to display and use the view for VIEWING only not callucations... I hope this change of paradigm will help