I'm trying to fetch certain values from and then pass it to another model in the same control.
However I'm only able to display the last row in the view.
I have shared my code below and I'm not sure where I'm going wrong.
Controller:
public function test($id){
$mapping_details = $this->queue_model->get_mapping_details($id);
foreach ($mapping_details as $value) {
$data['agent_details'] = array($this->agent_model->get_agent_details($value['user_id']));
}
$this->load->view('app/admin_console/agent_queue_mapping_view', $data);
}
Model:
public function get_agent_details($id) {
$query = "select * from user_table where id = ".$id." and company_id = ".$this->session->userdata('user_comp_id');
$res = $this->db->query($query);
return $res->result_array();
}
Welcome to StackOverflow. The problem is the iteration in your controller. You are iterating through the $mapping_details results and per every iteration you are re-assigning the value to $data['agent_details'] , thus losing the last stored information. What you need to do is push to an array, like this:
foreach ($mapping_details as $value) {
$data['agent_details'][] = $this->agent_model->get_agent_details($value['user_id']);
}
However, wouldn't it be best if you created a query that uses JOIN to get the related information from the database? This will be a more efficient way of creating your query, and will stop you from iterating and calling that get_agent_details() over and over again. Think of speed. To do this, you would create a model method that looks something like this (this is just an example):
public function get_mapping_details_with_users($id){
$this->db->select('*');
$this->db->from('mapping_details_table as m');
$this->db->join('user_table as u', 'u.id=m.user_id');
$this->db->where('m.id', $id);
$this->db->where('u.company_id', $this->session->userdata('user_comp_id'));
return $this->db->get()->result();
}
Then your controller will only need to get that model result and send it to the view:
public function test($id){
$data['details_w_users'] = $this->queue_model->get_mapping_details_with_users($id);
$this->load->view('app/admin_console/agent_queue_mapping_view', $data);
}
Hope this helps. :)
Related
I tried to fetch data using joins and the data is repeating,
The controller code is:
public function searchjobs2()
{
//$id=$_SESSION['id'];
$lan = $_POST["picke"]; //var_dump($id);die();
$value['list']=$this->Free_model->get_jobs($lan);//var_dump($value);die();
$this->load->view('free/header');
$this->load->view('free/searchjobs2',$value);
}
And the model:
public function get_jobs($lan)
{
$this->db->select('*');
$this->db->from("tbl_work_stats");
$this->db->join("tbl_work", "tbl_work.login_id = tbl_work_stats.login_id",'inner');
$this->db->where("language LIKE '%$lan%'");
// $this->db->where('tbl_work_stats.login_id',$id);
$this->db->order_by('insertdate','asc');
$query=$this->db->get()->result_array();//var_dump($query);die();
return $query;
}
I have used
foreach ($list as $row){
...
}
for listing.
Using distinct will remove duplicate fields:
$this->db->distinct();
From what I can see, your query has ambiguity, and an error in the join statement, also your where like is part of the problem, I would recommend trying this even do there are some missing info, find out wich field you need to join from the second table.
public function get_jobs($lan){
$this->db->select("tbl_work_stats.*, tbl_work.fields");
$this->db->from("tbl_work_stats");
$this->db->join("tbl_work", "tbl_work_stats.login_id = tbl_work.login_id","inner");
$this->db->where("tbl_work.language LIKE", "%" . $lan . "%" );
$this->db->order_by("tbl_work_stats.insertdate","asc");
$query=$this->db->get()->result_array();
return $query;}
do you mean to join on login_id?
I am guessing that is the user logging in and it is the same for many entries of tbl_work_stats and tbl_work.
you didn't post your schema, , but login_id doesn't seem like right thing to join on. how about something like tbl_work.id = tbl_work_stats.tbl_work_id or similar?
also CI $db returns self, so you can do:
public function get_jobs(string $lan):array
{
return $this->db->select()
->from('tbl_work_stats')
->join('tbl_work','tbl_work.id = tbl_work_stats.work_id')
->like('language',$lan)
->order_by('insertdate')
->get()
->result_array();
}
I'm building a codeigniter site and I have a database table of books - one record for each book with title, author, etc etc fields. I know how to get the db table contents and pass an object to the view and then do a foreach loop to get the values. I could print a table of all the data. However I then get a bit muddled. The page has areas for each book and the data for a book will be one row of the data array. So what I want to do is, if the author is 'this' value, find the correct row in which the author appears and then get the other fields. How can I do a foreach loop that finds the one row with the author's name?
I can't think how to do it - I seem to go round and round in circles.
Help!
Edit: Code:
OK so here's the controller method:
public function index()
{
$books = $this->Books_model->getbooks();
$data = array(
'body_id'=>'home',
'main'=>'home_view',
'books'=>$books
);
$this->load->view('templates/template_main_view', $data);
}
and here's the model method:
function getbooks(){
$query = $this->db->get('books');
return $query->result();
}
so I end up with the variable $books (which is of course an object, not an array) in the view and a var_dump() shows that it has all the data. So far so good. I can then use a foreach loop to get values.
Now I want to extract a single row/record conditional on the fact that it has a given value for 'author' and assign each field of that row to a variable that I can use them in the view. And then I want to repeat that for the other rows. I can't seem to work out how to do that.
Afternote:
I found a way of doing this but not sure if it's the best or neatest:
I do this:
if(isset($books)){
foreach($books as $row){
if($row->author == 'authorname'){
$title = $row->title;
}
}
}
it works but seems a bit clumsy/overkill??
How about creating a specific function for getting the book/s that matches the author name?
For example:
In your controller you can do something like this:
public function index()
{
$data['books'] = $this->Books_model->get_each_book();
$data = array(
'body_id'=>'home',
'main'=>'home_view',
'books'=>$books
);
$this->load->view('templates/template_main_view', $data);
}
The in your model, do something like this:
function get_each_book(){
$this->db->where('author','authorname');
$query = $this->db->get('books');
return $query->result_array();
}
This way, you are gonna filter the results in the model already.
Then in your view, access the variable 'books' through a foreach loop:
Example:
foreach($books as $row)
{
$title = $row['title'];
echo $title;
}
I have a model where I query the subjects a student is enrolled in. A student can have a subject from zero to any positive number. I will then pass it to the view where I will make a div for each subject. How do you suggest I will do it? Here is the code for my model:
public function getAllSubjects($username){
$this->db->select('student.username, subjects.subject_name, teacher.firstname as TeachersFirstName, teacher.surname as TeacherSurname');
$this->db->from('users student');
$this->db->join('student_subjects', 'student.username = student_subjects.student_username', 'inner');
$this->db->join('subjects', 'student_subjects.subject_id = subjects.subject_id', 'inner');
$this->db->join('users teacher', 'subjects.teacher_username = teacher.username', 'inner');
$this->db->where('student.username', $username);
$studentSubjQuery = $this->db->get('users');
}
EDIT:
Now I haven't tried anything yet. I simply don't know how I will iterate through the array once I passed the resulting array to the view. I have done it in the past. I used foreach to loop through the result. I did it in vanilla php and the view is mixed with the php code - which is ugly. I am echoing s for every result in the array. Now, I want to do this in codeigniter but, being new to the MVC framework, I really have no idea how to do this.
You can iterate through the results either as an object:
foreach ($studentSubjQuery->result() as $row) {
}
or as an array:
foreach ($studentSubjQuery->result_array() as $row) {
}
i have a page that shows all student profiles with their results. all the user info i putted in the table "user"
and then i have another table "results" that shows all the students their scores from diffrent courses. the thing is i don't know how to write the query or controller function to link the student with their corresponding results. I need some help here thanks
Controller
function students()
{
$data = array();
$this->load->model('kdg_model');
$query = $this->kdg_model->get_students();
$query2 = $this->kdg_model->get_resultStudent();
if ($query)
{
$data['user'] = $query;
$data['results'] = $query2;
}
$this->load->view('students_view',$data);
}
Model
get_students get all rows from the database table user.
get_resultstudent gets all the rows from results. tried to combine them but it just gives me all the same rows back on every profile.
function get_students(){
$this->db->where('admin', 0);
$query = $this->db->get('user');
return $query->result();
}
function get_resultStudent(){
$this->db->select('*');
$this->db->from('results');
$this->db->join('user', 'user.id_user = results.FK_student');
$query = $this->db->get();
return $query->result();
}
I'm not sure what your database schema looks like but from what I can work out I've got this. Okay so in your controller you want to build your array of students. Let do this by calling two model functions. The first model function we are going to call we get us all of the students in the 'user' table. The model will pass back an array to the controller which we can loop through to get the individual students. On each iteration of the loop we can pass the 'id_user' to another function in our model to get the results for that student.
//This is where we will store the students and their results
$aData['aStudentResults'] = array();
//Load the model we need
$this->load->model('kdg_model');
//Get an array of students
$aStudents = $this->kdg_model->get_students();
//Now we have an array of student id's let loop through these and for each student
//let get their results
foreach($aStudents as $student)
{
//Add the student to the array
//The student id (id_user) is the key
$aData['aStudentResults'][$student->id_user] = $this->kdg_model->get_resultStudent($student->id_user);
}
//Pass out array of students to the view
$this->load->view('students_view', $aData);
These are the model functions we are calling in the controller
//Get all the students that are not admins
function get_students(){
$this->select('id_user')
-from('user')
->where('admin', 0);
$query = $this->db->get();
return $query->result();
}
//Use the id_user we were passed by the controller to get the results
function get_resultStudent($id_user){
$this->db->select('*');
$this->db->from('results');
$this->db->where('FK_student', $id_user);
$query = $this->db->get();
return $query->result_array();
}
At this point we now have all the data we need. We just need to pass it from the controlle to the view which we did by passing the view $aData. In our view we can access what we passed to it like so
<? foreach($aStudentResults as $studentId => $aResults): ?>
<p>Student id: <?= $studentId ?></p>
<?foreach($aResults as $aResult): ?>
//Do something with results
<? endforeach; ?>
<? endforeach; ?>
This hasn't been tested so there may be some syntax errors but hopefully you should get an idea of what I am trying to do and what you need to do.
It's important for you to understand how MVC works. Practice selected data from your database in your models, and then passing that data to your views via the controller. You'll quickly get the hang of it.
If there is anything you don't understand in this answer please leave a comment and let me know.
In my CodeIgniter project I'm getting the list of projects and successfully output them on a page. However, the data in one of the columns on that page should be retrieved from a different table in DB using the project ID. Could anybody help me to figure out how that can be done? Basically I need to make another query to that other table specifying the project id but don't actually know how to do that with CodeIgniter.
UPDATE
In the model I'm getting the list of projects with the following function:
function get_projects_list($page, $limit){
$sql = sprintf("SELECT * FROM Project WHERE deleted != 1 LIMIT %d, %d", ($page-1)*$limit, $limit);
$query = $this->db->query($sql);
return $query->result();
}
And in the controller I call the following function:
$projects_list = $this->Project_management_model->get_projects_list($curPage, self::$LIMIT_PER_PAGE);
$data['projects_list'] = $projects_list;
$data['cur_page'] = $curPage;
$data['page_count'] = $pageCount;
$this->load->view('project_management_view', $data);
And in the view I simply run on the $data with foreach and list the results in a table. In that table there's a column where I need to show a result from another table based on the ID of the project of that very row.
Thanks for helping.
You didn't mention whether you are using ActiveRecord or not. I am assuming that you are. I'll also guess that maybe what you need to do is use a JOIN.
If you were using straight SQL, you would do this using some SQL that might look something like this:
SELECT a.appointment_time, u.user_real_name FROM appointment a, site_user u WHERE u.site_user_id = a.user_id;
That would pull the user's name from the user table based on the user id in the appointment table and put it with the appointment time in the query results.
Using ActiveRecord, you would do something like this:
$this->db->select('appointment_time,user_real_name')->from('appointment')->join('site_user', 'site_user_id=appointment_user_id');
But why don't you tell us a little bit more about your question. Specifically, do you want this column in the other table to be related to the rows from the first table? If so, my JOIN suggestion is what you need.
I've actually found a way to do that with a custom helper. Creating a new helper and loading it in the controller gives an option to use the function from that helper in the view.
Thanks.
public function get data()
{
$this->db->flush_cache();
$query = $this->db->get('project_table');
$result = $query->result();
$data = array();
for ($i = 0;$i < count($result);$i++)
{
$data[$i] = $result[$i];
$data[$i]['project_data'] = temp($result[$i]->id);
}
return data;
}
private function temp($id = 0)
{
$this->db->flush_cache();
$this->where('id',$id);
$query = $this->db->get('project_table2');
$result = $query->result();
if (count($result) != 0)
return $result[0]->data;
}
you can do it by some thing like that,or you can use sub-query by query function of database.