I'm working on a project. how to calculate comment by id?
example
controler:
public function comments() {
$id_alat = $this->db->where('id_alat');
$com = $this->mcrud->getComent($id_alat);
$com = $this->mcrud->getComent($id_alat);
$data = array (
'com' => $com,
'content' => 'instrument/instrument');
$this->load->view('layouts/wrapper', $data);
}
models:
public function getComent($id_alat) {
$sql = "SELECT count (*) as num FROM WHERE tbcoment $id_alat tbcoment.id_alat = {}";
$this->db->query($sql);
}
view:
comments: <?php echo $com; ?>
Use following code for model
Your Model
public function getComent($id_alat)
{
$sql = "SELECT count (*) as num FROM WHERE tbcoment.id_alat = '$id_alat'";
$res=$this->db->query($sql)->row_object();
return $res->num;
}
Note: Don't use spaces inside php tags and variables.
Ex01: $ id_alat should come $id_alat
Ex02: $ this-> mcrud-> getComent ($ id_alat); should come $this->mcrud-> getComent($id_alat);
Code Example
In controller
function comments () {
$id_alat = '';//Asign data to here
$data['com'] = $this->Model_name->getComent($id_alat);
$data['content'] = 'instrument / instrument';
$this->load->view ('layouts/wrapper', $data);
}
In Model
function getComent($id_alat) {
$query =$this->db->query("SELECT * FROM table_name WHERE tbcoment='$id_alat'");//cahnge table name, and argument that you want
$result = $query->result_array();
$count = count($result);
return $count;
}
In view
comments: <?php echo $com; ?>
you can also use this code:
$this->db->where('id',$id)
->from('table_name')
->count_all_results();
this can be used either on MVC(Model, View, Controller);
you can find this code on the user guide
Related
I have 2 cases where i am fetching the entire data and total number of rows of a same table in codeigniter, I wish to know that is there a way through which i can fetch total number of rows, entire data and 3 latest inserted records from the same table through one code
Controller code for both cases is as given below (although i am applying it for each case seperately with different parameters)
public function dashboard()
{
$data['instant_req'] = $this->admin_model->getreq();
$this->load->view('admin/dashboard',$data);
}
1) to fetch the entire data from a table in codeigniter
Model Code
public function getreq()
{
$this->db->where('status','pending');
$query=$this->db->get('instanthire');
return $query->result();
}
View Code
foreach ($instant_req as $perreq)
{
echo $perreq->fullname;
echo "<br>";
}
2) to fetch number of rows from a table in codeigniter
public function getreq()
{
$this->db->where('status','pending');
$query=$this->db->get('instanthire');
return $query->num_rows();
}
View Code
echo $instant_req;
You can make only one function that gives you the all data at once total number of rows, entire data and 3 latest inserted records
for example in the model
public function getreq()
{
$this->db->where('status','pending');
$query=$this->db->get('instanthire');
$result=$query->result();
$num_rows=$query->num_rows();
$last_three_record=array_slice($result,-3,3,true);
return array("all_data"=>$result,"num_rows"=>$num_rows,"last_three"=>$last_three_record);
}
in controller dashboard function
public function dashboard()
{
$result = $this->admin_model->getreq();
$this->load->view('admin/dashboard',$result);
}
in view
foreach ($all_data as $perreq)
{
echo $perreq->fullname;
echo "<br>";
}
//latest three record
foreach ($last_three as $perreq)
{
echo $perreq->fullname;
echo "<br>";
}
//total count
echo $num_rows;
Raw query may work here.
$resultSet = $this->db->query("select * from table_name");
$queryCount = count($resultSet );
Try this logic :
Model code :
public function getreq()
{
$this->db->where('status','pending');
$this->db->order_by('id', 'DESC'); //actual field name of id
$query=$this->db->get('instanthire');
return $query->result();
}
Controller Code :
public function dashboard()
{
$data['instant_req'] = $this->admin_model->getreq();
$data['total_record'] = count($data['instant_req']);
$this->load->view('admin/dashboard',$data);
}
View Code:
$i=0;
foreach ($instant_req as $perreq)
{
if($i<3){
echo $perreq->fullname;
echo "<br>";
}
$i++;
}
Echo 'Total record : '.$total_record;
Function
function getData($limit = 0){
//Create empty array
$data = [];
//Where clause
$this->db->where('status','pending');
//Order Data based on latest ID
$this->db->order_by('id', 'DESC');
if($limit != 0){
$this->db->limit($limit);
}
//Get the Data
$query = $this->db->get('instanthire');
$data['count'] = $query->num_rows();
$data['result'] = $query->result();
return $data;
}
Calls
//Last 3 Inserted
$data = getData(3);
//All Data
$data = getData();
CodeIgniter Database Documentation
Here is a simple solution that I can first think of but if you want me to maybe improve I can.
Just stick with your first code(Model) and in the view count how many items are iterated through.
$count = 0;
foreach ($instant_req as $perreq)
{
echo $perreq->fullname;
echo "<br>";
$count++;
}
echo $count;
Am I still missing something? just let me know
EDIT:
This is another solution, return an array
public function getreq()
{
$this->db->where('status','pending');
$query=$this->db->get('instanthire');
$data['results'] = $query->result();
$data['count'] = $query->num_rows();
return $data
}
I'm not very confident and haven't really tried this but on top of my head I think it can work.
Model:
public function getreq()
{
$res = $this->db->order_by("<place column primary id>","desc")->get_where('instanthire',['status'=> 'pending']);
$latest_3 = [];
if(count($res)){
$i=1;
foreach($res as $r){
$latest_3[]=$r;
if($i == 3)
break;
$i++;
}
}
$arr = [
'latest_3' => $latest_3,
'count' => count($res),
'total_result' => $res,
];
return $arr;
}
I have to table article and table comment. In the home page I want to see how many comment for earch article.
Model
function show_latest_article($start,$display,$cate)
{
$query= $this->db->get_where('news_news', array('News_Cate_ID'=>$cate),$start,$display);
if($cate==0)
{
$query= $this->db->get_where('news_news',$start,$display);
}
return $query->result();
}
function count_comment($id)
{
$query = $this->db->get_where('comment',array('comment_article_id'=>$id) );
return $query->num_rows();
}
Controller
function index() {
$this->load->model('article');
$data=array('article'=>$this->article->show_latest_article(0,8,1),
'sidebar'=>$this->article->side_bar(9),
'count_comment'=> $this->article->count_comment($id),
);
$this->load->view('page/index',$data);
}
In the view I have this
foreach($article as $art)
{
echo $art->title."<br>";
$id= $art->id;
// I want to echo number of comment here.
// Or I want to call function count_comment($id)
}
$this->load->model('article');
$data['article'] = $this->article->show_latest_article(0, 8, 1);
$data['sidebar'] => $this->article->side_bar(9);
$data['count_comment'] => $this->article->count_comment($id);
$this->load->view('page/index', $data);
And it should work.
It's not so clear, where the $id variable come from, but I suggest to join the comments table to your article. It's not a best practice to make queries within loops.
In your model:
public function show_latest_article($ids = array())
{
return $this->db
->select('articles.*, COUNT(comments.id) as comment_count')
->where_in('articles.id', $ids) // You can skip this
->join('comments', 'comments.article_id = articles.id', 'left')
->group_by('articles.id')
->get('articles')
->result();
}
In your controller:
public function index()
{
$data['articles'] = $this->article->show_latest_article(array(0, 8, 1));
$this->load->view('page/index', $data);
}
Just change the field name according to database columns. Also you can skip the where_in condition. (I'm not sure what the three number stands for).
Then in your view, you can simply access the field:
$art->comment_count
EDIT: According to your comment:
$this->db
->select('a.*, (SELECT COUNT(*) FROM comment c WHERE c.comment_article_id = a.News_News_ID ) as counta')
->get('news_news')
->result();
I am writing this answer as you provided code. It could be more simpler if you give more database details. Try below code
function index() {
$this->load->model('article');
$articles = $this->article->show_latest_article(0,8,1);
foreach($articles as $article)
{
$article->comment_count = $this->article->count_comment($article->id);
$all_article[] = $article;
}
$data=array('article'=>$all_article,
'sidebar'=>$this->article->side_bar(9)
);
$this->load->view('page/index',$data);
}
On view
foreach($article as $art)
{
echo $art->title."<br>";
$id= $art->id;
echo $art->comment_count;
}
Controller :
function index() {
$this->load->model('article');
$articles = $this->article->show_latest_article(0,8,1);
$count_comments = Array();
for($i=0;$i<count($articles);$i++){
$count_comments[$i] = $this->article->count_comment($articles->$id);
}
$count_comments =
$data=array('article'=>$articles,
'sidebar'=>$this->article->side_bar(9),
'count_comment'=> $count_comments);
$this->load->view('page/index',$data);
}
In the View :
$i=0;
foreach($article as $art)
{
echo $art->title."<br>";
$id= $art->id;
echo $count_comment[$i];
$i++;
}
Data is passed from the controller to the view by way of an array or an object in the second parameter of the view loading function. Here is an example using an array:
$data = array(
'title' => 'My Title',
'heading' => 'My Heading',
'message' => 'My Message'
);
$this->load->view('blogview', $data);
Also below is the example for object
$data = new Someclass();
$this->load->view('blogview', $data);
PLEASE NOTE: Note: If you use an object, the class variables will be turned into array elements.
You can find out more from below ref URL
Ref: https://ellislab.com/codeigniter/user-guide/general/views.html
First of all in your controller you get count_comment only for specific article ID and not for all articles so you cant do foreach to display comment count of each article.
You need to setup you model better and in model function show_latest_article to use JOIN comments table and do count comment in query.
I will help you with query if you provide me more info about database table of article and comments.
SELECT
article.*,
COUNT(comment.id),0) AS numberOfCommments
FROM article
LEFT JOIN comment
ON comment.article_id = article.id
GROUP BY article.id
Please help me. i can not use my dataTable properly. what I want to do is
select from table and use thewherefunction. but i cant do it properly.
here is my controller code
public function reporttable ()
{
$zz = array('empnumber' => $this->input->post('empnumber'));
//$this->db->order_by("surname", "asc");
$this->datatables->select('date_auto,particulars,earned_VL,aul_VL,balance_VL,aulx_VL,earned_SL,aul_SL,balance_SL,aulx_SL,date_leave,action_taken')
->from('tblreport')->where($zz);
echo $this->datatables->generate();
}
this is my supposed query:
select * from tblreport where empnumber = (the empnumber in my textbox.)
there, i get a value from a textbox to my view. but it didn't work. i know that is wrong. can you please help me with my problem? thank you.
<p align="center"> <?php echo $this->table->generate();?></p></div>
<?php foreach ($tblemployee as $row){?>
<input type="text" name="empnumber" readonly="readonly" value="<?php echo $row->empnumber;?>"/>
<input type="hidden" name="empnumber" value="<?php echo $row->empnumber;?>"/>
here is my view for guide. thank you.
as Simple you can use
In Controller
$data['tblemployee'] = $this->model_name->reporttable($id)//assign your data base value to variable
$this->load->view('your view name',$data )
in Model
public function reporttable($id)
{
$query = $this->db->query("select * from tblreport where empnumber = '$id'");
$result = $query->result_array();
return $result; // this will return your data as array
}
In view
<?php
foreach ($tblemployee as $row)
{
echo $row['id];
}?>
Try this :
To make it more simplier.
In model :
public function reporttable ($id){
$this->db->select('*');
$this->db->from('tblreport');
$this->db->where('empnumber', $id);
$query = $this->db->get();
return $query->return_array(); // use this if so want to return many query if not you can also use first_row('array')
}
In controller :
public function function_name (){
$data['variable_name'] = $this->model_name->reporttable($id); // change the model_name by your own model where your function reporttable is located and use the variable_name for your view,
$this->load->view('view_name' , $data); // load the view page you want to display.
}
In Controller
$data['tblemployee'] = $this->model_name->reporttable($id)//assign your data base value to variable
$this->load->view('your view name',$data )
in Model
public function reporttable($id)
{
$query = $this->db->query("select * from tblreport where empnumber = '$id'");
$result = $query->result_array();
return $result; // this will return your data as array
}
In view
<?php
foreach ($tblemployee as $row)
{
echo $row['id];
}?>
I am newbie in codeigniter. If I have a model like this :
public function get_data_for_reminder($id) {
$this->db->select('nama_user, keluhan, email, addresed_to');
$query = $this->db->get_where('tbl_requestfix', array('id_request' => $id));
return $query->row();
}
And I try to accessed it from may controller :
public function reminderIT() {
$id = $this->input->post('id');
$data = $this->model_request->get_data_for_reminder($id);
How to Generating Query Results, thanks for the help.
EDIT
I am new in CI, my question is : let's say I want to get the 'nama_user' into an a variable like this :
foreach ($data as $d) {
$name = $d['nama_user'];
}
echo json_encode($name);
I use firebug, it gives me null. I think my foreach is in a problem
In order to return an array from your model call you can use result_array() as
public function get_data_for_reminder($id) {
$this->db->select('nama_user, keluhan, email, addresed_to');
$query = $this->db->get_where('tbl_requestfix', array('id_request' => $id));
return $query->result_array();//<---- This'll always return you set of an array
}
Controller File with your query code
public function reminderIT() {
$id = $this->input->post('id');
$data = $this->model_request->get_data_for_reminder($id);
//Generating Query Results like this because you use $query->row();
$data->nama_user;
$data->keluhan;
$data->email;
$data->addresed_to;
$info_json = array("nama_user" => $data->nama_user, "keluhan" => $data->keluhan, "email" => $data->email, "addresed_to" => $data->addresed_to);
echo json_encode($info_json);
}
MODEL.PHP
public function get_data_for_reminder($id) {
$this->db->select('nama_user, keluhan, email, addresed_to');
$query = $this->db->get_where('tbl_requestfix', array('id_request' => $id));
return $query->row_array();
}
//Generating Query Results if use $query->row_array(); in model file
Controller.php
function reminderIT() {
$id = $this->input->post('id');
$data = $this->model_request->get_data_for_reminder($id);
foreach($data as $row)
{
$myArray[] = $row;
}
echo json_encode($myArray);
You fetched data for selected id it means you get a single row, if you want to get "nama_user" then in your controller:
public function reminderIT() {
$id = $this->input->post('id');
$data = $this->model_request->get_data_for_reminder($id);
$name = $data->nama_user;
echo json_encode($name);
}
I've been trying to get the results from my query for the past two hours, in my model I have this
public function getQuotes()
{
$data = Yii::app()->db->createCommand('Select fromm from city_fare_final');
$data->queryRow();
return $data ;
}
in the controller
public function actionIndex()
{
// renders the view file 'protected/views/site/index.php'
// using the default layout 'protected/views/layouts/main.php'
$model=new QuoteForm();
if(isset($_POST['QuoteForm']))
{
$model->attributes=$_POST['QuoteForm'];
if ($model->validate())
{
$priceTable=new CityFareFinal;
$priceTable->fromm=$model->pickupL;
$priceTable->too=$model->dropoffL;
$priceTable->type_of_car=$model->type;
this->render('result',array('model'=>$priceTable))
}
}
else
{
$this->render('index',array('model'=>$model));
}
}
and in the view
<div id="moduleResult">
<span><?php echo $model->getQuotes() ;?><------ Here</span>
</div>
but it always give me an error saying "Object of class CDbCommand could not be converted to string ", what can I do to get the results of my query made in the model???
Regards
Gabriel
public function getQuotes()
{
$data = Yii::app()->db->createCommand('Select fromm from city_fare_final');
$data->queryRow();
return $data ;
}
Your getQuotes() return Object of class CDbCommand:
+ You returned $data in the function instead of $data->queryRow().
By the way, you cannot use echo for array data.
The below example is used for fetching data from DB to view by using DAO with Yii: I suppose you have Person model and Person controller
In your Person model:
function getData() {
$sql = "SELECT * from Person";
$data = Yii::app()->db
->createCommand($sql)
->queryAll();
return $data;
}
In your controller:
function index(){
$data = Person::model()->getData();
$this->render('your_view',array(
'data'=>$data,
));
}
In your view: you can foreach your data to echo items in the array data:
<?php foreach($data as $row): ?>
//show something you want
<?php echo $row->name; ?>
<?php endforeach; ?>
$data->queryRow(); returns result in array format. Your code is returning $data which is an object not result of query. That's why you are getting this error.
If you want to fetch single value you can use $data->queryScalar();
In case of queryRow() your code will be
public function getQuotes()
{
$data = Yii::app()->db->createCommand('Select * from city_fare_final');
$result = $data->queryRow();
return $result ; //this will return result in array format (single row)
}
for a single field value you code will be
public function getQuotes()
{
$data = Yii::app()->db->createCommand('Select xyz from city_fare_final');
$result = $data->queryScalar();
return $result; //return single value of xyz column
}
I hope this will help.
below sample code to traverse rows returned by queryAll
$connection = Yii::app()->db;
$command = $connection->createCommand("Select * from table");
$caterow = $command->queryAll(); //executes the SQL statement and returns the all rows
foreach($caterow as $retcat )
{
echo $retcat["ColumnName"] ;
}
Returns Arrary of rows with fields
Model: Notices.php:
---------------------------------
public function getNoticesBlog($offset = 0){
$dataResult = Yii::app()->db->createCommand()->select('*')->from($this->tableName())
->andWhere("delete_flg=:delete_flg",array(':delete_flg'=>0))
->andWhere("publish=:publish",array(':publish'=>1))
->limit(3)->offset($offset)->order('created_on DESC')->queryAll();
return $dataResult;
}
Controller: NoticesController.php
$firstNotices = Notices::model()->getNoticesBlog(0);
$secondNotices = Notices::model()->getNoticesBlog(3);
$thirdNotices = Notices::model()->getNoticesBlog(6);
$this->render('Notices',array(
'firstNotices'=>$firstNotices,
'secondNotices'=>$secondNotices,
'thirdNotices'=>$thirdNotices,
)
);