This is somewhat related to [CodeIgniter active records' problems calling multiple stored procedures
but I am not experiencing a blank page; instead when I am passing my data array to view it seems that the the preceding array also being drag to the view.
model
public function data1($student) {
$year = 1;
$sem = 1;
$course = $this->getStudentCourseByStudentId($student);
$sql = "CALL EVALUATION_BY_YEAR_SEM(?,?,?,?)";
$query = $this->db->query($sql, array($course, $student, $year, $sem));
if (!$query) {
return $this->db->error();
} else {
mysqli_next_result( $this->db->conn_id );
return $query->result();
}
}
public function data2($student) {
$year = 1;
$sem = 2;
$course = $this->getStudentCourseByStudentId($student);
$sql = "CALL EVALUATION_BY_YEAR_SEM(?,?,?,?)";
$query = $this->db->query($sql,array($course,$student,$year,$sem));
if (!$query) {
return $this->db->error();
} else {
mysqli_next_result( $this->db->conn_id );
return $query->result();
}
}
Controller:
$data['data1']=data1 from my model(SP);
$data['data2']=data2 from my model(SP);
View:
foreach($data2 as key => $value ) {
echo ....;
}
Here's the PROBLEM... in the view, I only wanted to output the $data2 but to my surprise $data1 is also being output.
Does anybody else have this issue?
I JUST SOLVE IT.
Model
public function data1($student){
**$this->db->initialize();**
$year = 1;$sem = 1;
$course = $this->getStudentCourseByStudentId($student);
$sql = "CALL EVALUATION_BY_YEAR_SEM(?,?,?,?)";
$query = $this->db->query($sql,array($course,$student,$year,$sem));
if (!$query) {
return $this->db->error();
}else {
mysqli_next_result( $this->db->conn_id );
return $query->result();**$this->db->close();**
}
}
public function data2($student){
**$this->db->initialize();**
$year = 1;$sem = 2;
$course = $this->getStudentCourseByStudentId($student);
$sql = "CALL EVALUATION_BY_YEAR_SEM(?,?,?,?)";
$query = $this->db->query($sql,array($course,$student,$year,$sem));
if (!$query) {
return $this->db->error();
}else {
mysqli_next_result( $this->db->conn_id );
return $query->result();**$this->db->close();**
}
}
controller
$data['data1']=data1 from my model(SP);
**$this->db->close();**
$data['data2']=data2 from my model(SP);
Related
i am trying to create a CRUD app and am having trouble, if anyone can point me in the right direction i would be grateful, thank you.
Hi there i am having difficulty using data from the json.
i have used it here and it as worked
class JsonUtility
{
public static function makeProductArray(string $file) {
$string = file_get_contents($file);
$productsJson = json_decode($string, true);
$products = [];
foreach ($productsJson as $product) {
switch($product['type']) {
case "cd":
$cdproduct = new CdProduct($product['id'],$product['title'], $product['firstname'],
$product['mainname'],$product['price'], $product['playlength']);
$products[] = $cdproduct;
break;
case "book":
$bookproduct = new BookProduct($product['id'],$product['title'], $product['firstname'],
$product['mainname'],$product['price'], $product['numpages']);
$products[]=$bookproduct;
break;
}
}
return $products;
}
this is my controller
public function index()
{
// create a list.
$products = JsonUtility::makeProductArray('products.json');
return view('products', ['products'=>$products]);
}
this is my route
Route::get('/product' , [ProductController::class, 'index'] );
how can i use this on my controller and what route should i set up to create a product
public static function addNewProduct(string $file, string $producttype, string $title, string $fname, string $sname, float $price, int $pages)
{
$string = file_get_contents($file);
$productsJson = json_decode($string, true);
$ids = [];
foreach ($productsJson as $product) {
$ids[] = $product['id'];
}
rsort($ids);
$newId = $ids[0] + 1;
$products = [];
foreach ($productsJson as $product) {
$products[] = $product;
}
$newProduct = [];
$newProduct['id'] = $newId;
$newProduct['type'] = $producttype;
$newProduct['title'] = $title;
$newProduct['firstname'] = $fname;
$newProduct['mainname'] = $sname;
$newProduct['price'] = $price;
if($producttype=='cd') $newProduct['playlength'] = $pages;
if($producttype=='book') $newProduct['numpages'] = $pages;
$products[] = $newProduct;
$json = json_encode($products);
if(file_put_contents($file, $json))
return true;
else
return false;
}
This is where i am trying to type to code into.
public function create()
{
//show a view to create a new resource
$products = JsonUtility::addNewProduct('products.json');
return view('products', ['products'=>$newProduct], );
}
your function addNewProduct() is expecting 7 parameters when called.
you are getting this error because you cannot provide those parameters that your function is looking for.
in your code above you are passing 'products.json' which is in a string format.
lets assume that it is a JSON data. it will still fail because you are only passing 1 parameter to a function that is expecting 7 parameters.
what you could probably do is change it to
public static function addNewProduct($data)
{
// code here
}
then you can pass your JSON data and then go through each of your json using a loop.
My English is not good so sorry for any mistake. I'm new to Codeigniter, I am trying to search record by using this code, this is my controller code:
public function search() {
if(isset($_POST['search']))
{
$s = $_POST['search'];
$this->db->select('u_id,name,email,phone');
$this->db->from('user');
$this->db->where('name =' ,"{$s}" );
$query = $this->db->get();
$res = $query->result();
$data['user'] = null ;
if($res)
{
$data['user'] = $res ;
}
$this->load->view('filter' , $data);
}
}
It is working fine but I want to write this code in separate Model.
$this->db->select('u_id,name,email,phone');
$this->db->from('user');
$this->db->where('name =' ,"{$s}" );
$query = $this->db->get();
$res = $query->result();
But i don't know how to pass this variable value $s = $_POST['search']; to my model. Any suggestion?
you can try the following
//in your application/models Folder put a File called UserSearch_Model.php
class UserSearch_Model extends CI_Model
{
public function search($strSearch)
{
$query = $this->db
->select('u_id,name,email,phone')
->from('user')
->where('name' ,$s)
->get();
return $query->result();
}
}
//and in your controller
public function search()
{
$strSearch = $this->input->post('search');
if (!empty($strSearch))
{
$data = [];
$this->load->model("UserSearch_Model");
$data['user'] = $this->UserSearch_Model->search($strSearch);
if (is_array($data['user']) && count($data['user']) > 0)
{
$this->load->view('filter' , $data);
}
}
}
You can try this solution for your problem :
public function search() {
$search_value = $this->input->post('search'));
$this->db->select('u_id,name,email,phone');
$this->db->from('user');
if (isset($search_value) && !empty($search_value)) {
$this->db->where('name',$search_value);
// OR
$this->db->like('name', $search_value);
}
$query = $this->db->get();
$res = $query->result();
$data['user'] = null;
if ($res) {
$data['user'] = $res;
}
$this->load->view('filter', $data);
}
I hope it will help.
Controller
public function search() {
$search = $this->input->post('search');
$this->load->model('your_model'); //<-- You can load the model into "__construct"
$search_result = $this->your_model->your_search_function($search); //<-- This is how you can pass a variable to the model from controller
$this->load->view('your_view',['search_result'=>$search_result]); //<-- This is how you can load the data to the view. Hear your search result array is loaded on your view
}
Model
public function your_search_function($search) {
//You will receive this search variable ^^ here in your model
$this->db->select('u_id,name,email,phone');
$this->db->from('user');
$this->db->where('name',$search);
$query = $this->db->get();
$result = $query->result_array();
if(isset($result) && !empty($result))
{
return $result;
} else
{
return FALSE;
}
}
I want to pass a message variable in some conditions to controller from model in codeigniter. But when i am doing this it is printing only "No" everytime.
Model is
public function add_city() {
/* Storing form data into an array */
$data = array(
'city_name' => $this->input->post('city'),
'city_overview' => $this->input->post('overview')
);
/* Checking if already exist in database */
$query = $this->db->query("SELECT * FROM city_tbl WHERE city_name='" . $data['city_name'] . "' ORDER BY id ASC");
$count_row = $query->num_rows();
if ($count_row > 0) {
$msg = "No";
} else {
$this->db->insert('city_tbl', $data);
$msg = "Yes";
}
return $msg;
}
And Controller is
public function addingCity() {
$this->add_model->add_city();
var_dump($msg);
//redirect("/city");
}
Try This also
public function add_city() {
$data = array(
'city_name' => $this->input->post('city'),
'city_overview' => $this->input->post('overview')
);
/* Checking if already exist in database */
$query = $this->db->query("SELECT * FROM city_tbl WHERE city_name='" . $data['city_name'] . "' ORDER BY id ASC");
$count_row = $query->num_rows();
if ($count_row > 0) {
$msg = "No";
} else {
$this->db->insert('city_tbl', $data);
$msg = "Yes";
}
return $msg;
}
On controller redirect message with get method -
public function addingCity() {
$msg = $this->add_model->add_city();
redirect("/city?msg=".$msg);
}
And finally print this message on view page
echo $this->input->get('msg');
You need to assign value to $msg in your controller
public function addingCity() {
$msg=$this->add_model->add_city();// assign
var_dump($msg);
//redirect("/city");
}
Try this
public function add_city() {
$city_name = $this->input->post('city');
$city_overview = $this->input->post('overview');
$query = $this->db->query("SELECT * FROM city_tbl WHERE city_name='$city_name' ORDER BY id ASC");
$result = $query->result_array()
$count = count($result);
if(empty($count))
{
$msg = "No";
return $msg;
}
else{
$data = array(
'city_name'=>$this->input->post('city'),
'city_overview'=>$this->input->post('overview') );
$this->db->insert('city_tbl', $data);
$msg = "Yes";
return $msg;
}
}
In Controller
public function addingCity() {
$msg = $this->add_model->add_city();
echo $msg;
}
To pass data to view
public function addingCity() {
$data['msg'] = $this->add_model->add_city();
$this->load->view("filename", $data); # ex $this->load->view("index", $data);
}
Error is in your controller function
Try with this code
public function addingCity() {
$msg = $this->add_model->add_city();
echo $msg;die;
//redirect("/city");
}
I would like to get your MVC experience on the following:
I have a table where I say which user_id is in which group_id and a second table where I say which user_id has which user_name.
Now I want a function to which I pass a group_id and it gives me all user_names in the group.
The question is, what does the Controller do and what the Model:
Controller calls a Model (get_user_ids_from_group) that returns the user ids and then the controler calls different model (get_user_name_by_id) to return the usernames.
A controller calls a Model (`get_user_names_from_group) and the model internally gets first the user ids and then the user names.
I understand that the first way is more MVC strict. But how strict would you be in a case like this? Right now I am always being very strict.
As a result my model functions have always just two lines (query and return) and my controller are bigger. So to make controller and model size more equal the second option would be possible.
Actually, it has nothing to do with MVC, as CodeIgniter doesn't implement MVC, but a sort of MVP.
However, if you're using RDBMS such as MySQL, you could JOIN these two table (within the Model) and fetch the result (within the Controller) as I suggested in a similar topic on SO.
application/models/user.php
class User extends CI_Model
{
public function get_users_by_group($group_id)
{
$this->db->select('*')->from('groups');
// While group_id and user_id have a N:1 relation
$this->db->where('group_id', $group_id);
$this->db->join('users', 'users.user_id = groups.user_id');
$query=$this->db->get();
return $query->result_array();
}
}
Then fetch and pass the result within the Controller:
application/controllers/users.php
class Users extends CI_Controller
{
public function view($group_id)
{
$this->load->model('user');
// Fetch the result from the database
$data['users'] = $this->user->get_users_by_group($group_id);
// Pass the result to the view
$this->load->view('users_view', $data);
}
}
In MVC model should not be only use for storing and getting the data but also it should contain the business logic.
Controller - Should take input communicate with model and view
Model - Should contain business logic and data store
View - Only for Output
So its like Input -> Process -> Output
Also its depend on you where to put what and you should have a balance code on controller and model, Not write everything in controller or in model
In you case I think you should uses get_user_names_from_group and just pass the group name and make a join query between two table. And when you define your function in the model its give you the option to reuse the function again in case you need same thing on next controller.
Common model example:
<?php
class Common_model extends CI_Model {
function get_entry_by_data($table_name, $single = false, $data = array(), $select = "", $order_by = '', $orderby_field = '', $limit = '', $offset = 0, $group_by = '') {
if (!empty($select)) {
$this->db->select($select);
}
if (empty($data)) {
$id = $this->input->post('id');
if (!$id)
return false;
$data = array('id' => $id);
}
if (!empty($group_by)) {
$this->db->group_by($group_by);
}
if (!empty($limit)) {
$this->db->limit($limit, $offset);
}
if (!empty($order_by) && !empty($orderby_field)) {
$this->db->order_by($orderby_field, $order_by);
}
$query = $this->db->get_where($table_name, $data);
$res = $query->result_array();
//echo $this->db->last_query();exit;
if (!empty($res)) {
if ($single)
return $res[0];
else
return $res;
} else
return false;
}
public function get_entry_by_data_in($table_name, $single = false, $data = array(), $select = "", $order_by = '', $orderby_field = '', $limit = '', $offset = 0, $group_by = '',$in_column='',$in_data=''){
if (!empty($select)) {
$this->db->select($select);
}
if (empty($data)) {
$id = $this->input->post('id');
if (!$id)
return false;
$data = array('id' => $id);
}
if (!empty($group_by)) {
$this->db->group_by($group_by);
}
if (!empty($limit)) {
$this->db->limit($limit, $offset);
}
if (!empty($order_by) && !empty($orderby_field)) {
$this->db->order_by($orderby_field, $order_by);
}
if (!empty($in_data) and !empty($in_column)) {
$this->db->where_in($in_column,$in_data);
}
$query = $this->db->get_where($table_name, $data);
$res = $query->result_array();
//echo $this->db->last_query();exit;
if (!empty($res)) {
if ($single)
return $res[0];
else
return $res;
} else
return false;
}
public function getAllRecords($table, $orderby_field = '', $orderby_val = '', $where_field = '', $where_val = '', $select = '', $limit = '', $limit_val = '') {
if (!empty($limit)) {
$offset = (empty($limit_val)) ? '0' : $limit_val;
$this->db->limit($limit, $offset);
}
if (!empty($select)) {
$this->db->select($select);
}
if ($orderby_field)
$this->db->order_by($orderby_field, $orderby_val);
if ($where_field)
$this->db->where($where_field, $where_val);
$query = $this->db->get($table);
//return $query->num_rows;
//echo $this->db->last_query();
if ($query->num_rows > 0) {
return $query->result_array();
}
}
function alldata($table) {
$query = $this->db->get($table);
return $query->result_array();
}
function alldata_count($table, $where) {
$query = $this->db->get_where($table, $where);
return $query->num_rows();
}
function insert_entry($table, $data) {
$this->db->insert($table, $data);
return $this->db->insert_id();
}
function update_entry($table_name, $data, $where) {
return $this->db->update($table_name, $data, $where);
}
public function get_data_by_join($table, $table2, $where, $table1_column, $table2_column, $limit = '', $order_column = '', $order_by = 'DESC', $select_columns = '', $is_single_record = false, $group_by = '', $join_by = '', $offset = '') {
if (!empty($select_columns)) {
$this->db->select($select_columns);
} else {
$this->db->select('*');
}
$this->db->from($table);
$this->db->join($table2, $table . '.' . $table1_column . '=' . $table2 . '.' . $table2_column, $join_by);
$this->db->where($where);
if (!empty($limit)) {
if (!empty($offset)) {
$this->db->limit($limit, $offset);
} else {
$this->db->limit($limit);
}
}
if (!empty($order_column)) {
$this->db->order_by($order_column, $order_by);
}
if (!empty($group_by)) {
$this->db->group_by($group_by);
}
$query = $this->db->get();
if ($query->num_rows() > 0) {
if ($is_single_record) {
$rs = $query->result_array();
return $rs[0];
} else {
return $query->result_array();
}
} else {
return false;
}
}
function DeleteRecord($table_name, $where) {
return $this->db->delete($table_name, $where);
}
function managerecord() {
$count = 1;
$where = array('channel_id' => 8,
'field_id_12 !=' => '');
$this->db->where($where);
$query = $this->db->get('channel_data');
$data = $query->result_array();
foreach ($data as $value) {
$id = $value['field_id_12'];
$update = array('telephone' => $value['field_id_53'],
'about' => $value['field_id_54'],
'license' => $value['field_id_18'],
'broker' => $value['field_id_19'],
'preferred' => 'yes');
$this->db->update('members', $update, array('member_id' => $id));
}
echo "done1";
}
public function get_content_landing_page($table = false, $field = false, $id = false, $id_name = false) {
$this->db->select($field);
$this->db->from($table);
$this->db->where($id_name, $id);
$query = $this->db->get();
return $query->result_array();
}
public function get_field_landing_page($id = false,$fields=false) {
$this->db->select($fields);
$this->db->from('terratino_form_fields_master');
$this->db->where('id', $id);
$query = $this->db->get();
return $query->result_array();
}
}
?>
I am new with codegniter.
I have used the following code to execute function recursively.
In the first call i pass reply_id then in the function i have used query to select id those having
parent_id = reply_id then in the foreach i do the same process for all selected ids.
Now i want to return the combine array for all recursion.because for each id query is executed and get new result each time.
how can i do that??
$resultq3 = $this->showreply($reply_id); //first call to function
<?php
public function showreply( $reply_id ) {
$q1 =$this->db->select('*')
->from('forum_reply AS fr')
->where('fr.parent_id',$reply_id)
->order_by('fr.id ')->get();;
foreach( $q1->result_array() as $row4 ) {
$id = $row4['id'];
$parent_id = $row4['parent_id'];
if( $parent_id !=0 ) {
$this->showreply( $id );
}
}
return $result; //here want to return result
}
?>
Edited code:
$resultq3 = $this->showreply($reply_id); //first call to function
<?php
public function showreply( $reply_id ) {
$q1 =$this->db->select('*')
->from('forum_reply AS fr')
->where('fr.parent_id',$reply_id)
->order_by('fr.id ')->get();;
foreach( $q1->result_array() as $row4 ) {
$arr1 = $q1->result_array();
$arr = array_merge($arr, $arr1);
$id = $row4['id'];
$parent_id = $row4['parent_id'];
if(!empty($arr1)) {
$this->showreply( $id );
}
}
return $arr;
}
?>
public function showreply($parent_id = 0)
{
$q1 = $this->db->select('*')
->from('forum_reply AS fr')
->where('fr.parent_id', $parent_id)
->order_by('fr.id ')->get();
$arr = array();
foreach ($q1->result_array() as $row4)
{
$arr1 = $row4;
$id = $row4['id'];
$parent_id = $row4['parent_id'];
$arr1['child'] = $this->showreply($id);
$arr[]=$arr1;
}
return $arr; //here want to return result
}