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
Related
I have a problem in codeigniter.
I call a funtion in controller Articles from the view.
<li><a href="index.php/articles/Category/1" ><?php echo $item['CATEGORY'] ?></a></li>
The function
function getCategories() {
$this->db->select('ID_CAT,CATEGORY');
$this->db->from('CATEGORY');
$query = $this->db->get();
if ($query->num_rows() > 0) {
return $query->result_array();
} else {
return FALSE;
}
}
function Category($id_cat) {
if (!$id_cat) {
$id_cat = 0;
}
$this->load->model('graf/home_model');
$data = array();
$data['categories'] = $this->home_model->getCategories();
$filtro_cat = $id_cat;
$data['article'] = $this->home_model->getArticles($filtro_cat);
$this->load->view('graf/articles', $data, TRUE);
}
home_model
function getArticles($filtro_cat) {
$this->db->select('*');
$this->db->from('ARTICLES');
if ($filtro_cat != 0) {
$this->db->where("ID_CAT=".$filtro_cat);
}
$query = $this->db->get();
if ($query->num_rows() > 0) {
return $query->result_array();
} else {
return FALSE;
}
}
When i select the button the url changes to http://localhost/Graf/index.php/articles/Category/1 but does not load
http://localhost/Graf/index.php/articles/
Why?
When you set third argument of load->view() to true it returns string value and does not output anything
Try changing:
$this->load->view('graf/articles', $data, TRUE);
to
$this->load->view('graf/articles', $data);
set the routes.php in folder config, add this code;
$route['articles/Category/(.*)'] = 'articles/$1';
and change the link
<li><a href="<?php echo site_url('index.php/articles/'.$item['ID_CAT']); ?>" ><?php echo $item['CATEGORY'] ?></a></li>
and change your controller to this
$this->load->view('graf/articles', $data);
I have three functions that returns all parents for specific child with user_id with recursive query.
All these functions works good ..but the problem begins when I start use foreach loop to return multiple user parent names in function
merge_comments_data..
note : t_relation means = parent_id
class News extends front_end {
public $parents_names;
function merge_comments_data($related_comments) {
foreach ($related_comments as $comment) {
$full_name = $this->get_parents_names($comment['cn_visitor_id']);
}
echo "<pre>";
print_r($names);
echo "</pre>";
exit;
}
//// all these function to get full parent names by user id
function get_parents_names($user_id = 0) {
$this->user_parent_name($user_id);
echo $this->parents_names;
}
function user_parent_name($user_id = 0) {
// clear the variable at first
$result = $this->get_parents($user_id);
if (is_object($result)) {
$this->parents_names .= ' ' . $result->t_name . ' ';
if ($result->t_relation != 0) {
$this->user_parent_name($result->t_relation);
}
}
}
public function get_parents($user_id = 0) {
$result = $this->db->query("SELECT * FROM d_tree where t_id = '$user_id'");
if (is_object($result->row())) {
$result = $result->row();
} else {
$result = '';
}
return $result;
}
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"
Well I've searched and searched all around but I still can't find a solution to my problem. I'm still new to php and codeigniter so maybe I missed the answer already but anyways, here's what I'm trying to do.
This is my Controller (c_index.php) - calls a search function and performs pagination on the resulting array.
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class C_index extends CI_Controller {
public function __construct()
{
parent::__construct();
$this->load->model('m_search');
$this->load->library("pagination");
$this->load->library("table");
}
/** Index Page for this controller */
public function index()
{
if($this->session->userdata('logged_in')){
$this->load->view('v_user');
}
else{
$this->load->view('index');
}
}
public function search()
{
// start of search
$search_term = $this->input->post('word');
$books = $this->m_search->search_books($search_term);
// start of pagination
$config['base_url'] = "http://localhost/test/index.php/c_index/search";
$config['per_page'] = 5;
$config['num_links'] = 7;
$config['total_rows'] = count($books);
echo $config['total_rows'];
$this->pagination->initialize($config);
$data['query'] = array_slice($books,$this->uri->segment(3),$config['per_page']);
$this->load->view("index",$data);
}
}
Here's my view (index.php) - basically just displays the pagination result
<h3> Search Results </h3>
<!-- table -->
<table class="table table-condensed table-hover table-striped" id="result_table">
<tbody>
<?php
if(isset ($query)){
if(count($query)!=0){
foreach($query as $item){
echo "<tr><td>". $item['title'] ." by " .$item['author'] ."<br/></td></tr>";
}
echo $this->pagination->create_links();
}
else
{
echo "No results found for keyword ' ". $this->input->post('word')." ' .";
}
}
else
{
echo "Start a search by typing on the Search Bar";
}
?>
</tbody>
</table>
My model (m_search.php) - basically searches the database and returns an array of results.
<?php
class M_search extends CI_Model{
function search_books($search_term='default')
{
$filter = $this->input->post('filter');
//echo $filter;
if($filter == 'title')
{
//echo 'title';
$this->db->select('*');
$this->db->from('book');
$this->db->like('title',$search_term);
// Execute the query.
$query = $this->db->get();
return $query->result_array();
}else if($filter == 'author')
{
//echo 'author';
$this->db->select('*');
$this->db->from('book');
$this->db->like('author',$search_term);
// Execute the query.
$query = $this->db->get();
return $query->result_array();
}else if($filter == 'type')
{
//echo 'type';
$this->db->select('*');
$this->db->from('book');
$this->db->like('book_type',$search_term);
// Execute the query.
$query = $this->db->get();
return $query->result_array();
}else if($filter == 'status')
{
//echo 'status';
$this->db->select('*');
$this->db->from('book');
$this->db->like('book_status',$search_term);
// Execute the query.
$query = $this->db->get();
return $query->result_array();
}else
{
//echo 'all';
$this->db->select('*');
$this->db->from('book');
$this->db->like('book_status',$search_term);
$this->db->or_like('book_type',$search_term);
$this->db->or_like('author',$search_term);
$this->db->or_like('title',$search_term);
// Execute the query.
$query = $this->db->get();
return $query->result_array();
}
}
}
Now my problem is keeping the results for the pagination.
The first page is fine but whenever I click on a page link, the results on the table show the whole database and is not limited to my search results.
I've read somewhere that I need to use sessions to keep my search_term so that it works when I switch pages but I don't know where to put it.
Any advice or suggestions would be greatly appreciated. Thanks.
There are several of different ways to handle search and pagination depending on your needs. Based on your existing code, this is what I would do.
Change
$search_term = $this->input->post('word');
to
$search_term = ''; // default when no term in session or POST
if ($this->input->post('word'))
{
// use the term from POST and set it to session
$search_term = $this->input->post('word');
$this->session->set_userdata('search_term', $search_term);
}
elseif ($this->session->userdata('search_term'))
{
// if term is not in POST use existing term from session
$search_term = $this->session->userdata('search_term');
}
function search_books($search_term='default')
{
$filter = $this->input->post('filter');
//echo $filter;
if($filter == 'title')
{
$this->db->like('title',$search_term);
}
else if($filter == 'author')
{
$this->db->like('author',$search_term);
}
else if($filter == 'type')
{
$this->db->like('book_type',$search_term);
}
else if($filter == 'status')
{
$this->db->like('book_status',$search_term);
}
else
{
$this->db->like('book_status',$search_term);
$this->db->or_like('book_type',$search_term);
$this->db->or_like('author',$search_term);
$this->db->or_like('title',$search_term);
// Execute the query.
}
$query = $this->db->get('book');
return $query->result_array();
}
}
Just trying to lessen your Model code, if you don't want to use "session" and want to copy, paste link/url and get same result in your search then you should use uri class in your controller.
you can use following code in your controller all query string will show in pagination links.
$config['reuse_query_string']=TRUE;
for additional parameters in paging link you can un comment following 2 lines.
//$getData = array('s'=>$search);
//$config['suffix'] = '?'.http_build_query($getData,'',"&");
$this->pagination->initialize($config);
Try in this way in your Controller,
public function search()
{
$result=array();
if($this->session->userdata('login_id')!='')
{
$q = trim($this->input->get('q'));
if(strlen($q)>0)
{
$config['enable_query_strings']=TRUE;
$getData = array('q'=>$q);
$config['base_url'] = base_url().'admin/Product/search/';
$config['suffix'] = '?'.http_build_query($getData,'',"&");
$config['first_url'] = $config['base_url'].'?q='.$q;
$config["per_page"] = 10;
$config['use_page_numbers'] = TRUE;
$total_row = $this->Prod_model->search_record_count($q);
$config['total_rows']=$total_row;
$config['num_links'] = $total_row;
$config['cur_tag_open'] = ' <a class="current">';
$config['cur_tag_close'] = '</a>';
$config['next_link'] = 'Next >';
$config['prev_link'] = '< Previous';
if($this->uri->segment(3))
{
$page = $this->uri->segment(3);
}
else
{
$page = 1;
}
$result['search'] = $this->Prod_model->search($q,$config["per_page"],$page);
if(empty($result['search']))
{
echo "no data found";die;
}
else
{
$this->pagination->initialize($config);
$str_links = $this->pagination->create_links();
$result["links"] = explode(' ',$str_links);
$id=$this->session->userdata('login_id');
$result['user']=$this->Home_model->user_details($id);
$this->template->load('prod_table',$result);
}
}
else
{
echo "empty string";die;
}
}
else
{
redirect(base_url()."admin/");
}
}
I have a added custom function to the system->libraries->Form_validation.php
public function serial_exist($str, $value)
{
list($table, $column) = explode('.', $value, 2);
$query = $this->CI->db->query("SELECT COUNT(*) AS count FROM $table WHERE $column = '$str'");
$row = $query->row();
if ($row->count > 0) {
$query = $this->CI->db->query("SELECT COUNT(*) AS count FROM v_redeem WHERE v_serial='$str'");
$row = $query->row();
if ($row->count > 0) {
/// used
return FALSE;
} else {
return TRUE;
}
} else {
//invalid serial
return FALSE;
}
}
The I call the function from the below.
$this->form_validation->set_rules('serial','serial','required|xss_clean|serial_exist[v_info.v_serial]');
This works just fine but my issue how can I get the to different MSG say'n either invalid or used serial?
Hope my question is clear.
Try to set a custom set_message.
like this---
$this->form_validation->set_message('serial_exist', 'Your custom Message.');