I have 3 tables in database:
teams
id
name
matches
id (int)
team_home_id
team_away_id
goals
id
match_id
team_id
time
I need display names of teams in view where I get goals in controller.
I know that I should do join tables.
I have this code:
public function get_goals() {
$this->db->select('goals.*');
$this->db->from('goals');
$this->db->join('matches', 'matches.id = goals.match_id');
$q = $this->db->get();
return $q->result();
}
and I don't know what next.
I need in view display names by:
$goals->team_home_name and $goals->team_away_name
To get $goals->team_home_name and $goals->team_away_name result, use aliases like this :
public function get_goals() {
$this->db->select('goals.*, home_team.name team_home_name, away_team.name team_away_name');
$this->db->from('goals');
$this->db->join('matches', 'matches.id = goals.match_id');
$this->db->join('teams home_team', 'home_team.id = matches.team_home_id');
$this->db->join('teams away_team', 'away_team.id = matches.team_away_id');
$q = $this->db->get();
return $q->result();
}
You can try with this:-
public function get_goals() {
$this->db->select('g.* , t.name as team_home_name , t.name as team_away_name);
$this->db->from('goals as g');
$this->db->join('matches as m', 'm.id = g.match_id');
$this->db->join('teams as t', 't.id = g.team_id');
$q = $this->db->get();
return $q->result();
}
U can use an alias by
guss the team_away_name and team_home_name from teams table
public function get_goals() {
$this->db->select('goals.*, team.team_home_name, team.team_away_name');
$this->db->from('goals');
$this->db->join('matches', 'matches.id = goals.match_id');
$this->db->join('teams as team', 'team.id = goals.team_id');
$q = $this->db->get();
return $q->result();
}
Related
Please help me how can I get only response where activities.activity_id = response.activity_id? here is my CI_model
public function get_response(){
$this->db->select('*');
$this->db->from('response');
$id = $this->session->userdata('id');
$this->db->where_in('response.user_id', $id);
$this->db->join('activities', 'response.activity_id = activities.activity_id');
$this->db->join('users', 'users.id = response.user_id');
$result = $this->db->get()->result_array();
return $result;
}
My Activities table
My Response Table
My users table
Try with this:
$id = $this->session->userdata('id');
$this->db->select('a.*, b.*, c.*');
$this->db->join('activities b', 'a.activity_id = b.activity_id');
$this->db->join('users c', 'c.id = a.user_id');
$this->db->where_in('a.user_id', $id);
$result = $this->db->get('response a')->result_array();
return $result;
You need to add aliases to the tables in order to build a more simplified and ordered query, in this case the aliases are a, b and c.
UPDATE: I fix a get method incorrectly writed when copy your code.
Check the query snippet shared here:
https://extendsclass.com/mysql/526c246
I hope to be helpful
so i kinda new with codeigniter and im trying to join 3 table from my database
database 1 : dkm (id, tgl, ref, etc)
database 2 : order_product (kode_barang, packing, nama_barang, etc)
database 3 : product (kodeprod, tglpakai, etc)
im already trying what other ppl do to join more than 2 table in codeigniter but i got this error :
Error Number: 1066
Not unique table/alias: 'order_product'
SELECT *
FROM `order_product`
JOIN `order_product` ON `order_product`.`kode_barang` = `dkm`.`id`
JOIN `order_product` ON `order_product`.`kode_barang` = `produksi`.`kodeprod`
This is my code :
Bukaka_model.php
public function getOrderProduct()
{
$this->db->select('*');
$this->db->from('order_product');
$this->db->join('order_product','order_product.kode_barang = dkm.id');
$this->db->join('order_product','order_product.kode_barang = produksi.kodeprod');
$query = $this->db->get();
return $query->result();
}
You're trying to join to the same table multiple times, instead you need to join to the other tables once each.
You just need to change the names of the table you're joining to:
public function getOrderProduct()
{
$this->db->select('*');
$this->db->from('order_product');
$this->db->join('dkm','order_product.kode_barang = dkm.id');
$this->db->join('produksi','order_product.kode_barang = produksi.kodeprod');
$query = $this->db->get();
return $query->result();
}
Try this,
Here, you have a mistake in joining tables, in CI join() in the first parameter you need to pass/write table name with you want to join
public function getOrderProduct()
{
$this->db->select('*');
$this->db->from('order_product');
$this->db->join('dkm','order_product.kode_barang = dkm.id');
$this->db->join('produksi','order_product.kode_barang = produksi.kodeprod');
$query = $this->db->get();
if($query->num_rows() > 0)
{
return $query->result();
}else{
return array();
}
}
Try this:
public function getOrderProduct()
{
$this->db->select('*');
$this->db->from('order_product');
$this->db->join('dkm','dkm.id= order_product.kode_barang');
$this->db->join('produksi',' produksi.kodeprod = order_product.kode_barang');
$query = $this->db->get();
return $query->result();
}
Having issues joining two tables and displaying the other value, tables are setup and models are loaded and starts with a capital letter.
What i want is to match jobs.city_id and cities.id and display cities.city_name
Jobs_model.php
public function get_city(){
$this->db->select('*');
$this->db->from('cities');
$this->db->join('jobs', 'cities.city_name = jobs.city_id');
$this->db->where('jobs.city_id = cities.id');
$query = $this->db->get();
}
Controller.php
$data['city_name'] = $this->jobs_model->get_city();
View.php
<?php echo $city_name['city_name'];?>
SQL
CITIES
id
city_name
JOBS
id
city_id
update. sql and typo
You also have not returned any thing in model function
If you need a specific type of JOIN you can specify it via the third parameter of the function. Options are: left, right, outer, inner, left outer, and right outer.
This function example below only will return one row at a time you may need to use result_array(); read this link below how to generate results https://www.codeigniter.com/user_guide/database/results.html
public function get_city(){
$this->db->select('*');
$this->db->from('cities');
$this->db->join('jobs', 'jobs.city_id = cities.id', 'LEFT');
//$this->db->where('jobs.city_id = cities.id');
$query = $this->db->get();
// Note only returns one row
return $query->row_array();
}
And On Controller
$info = $this->jobs_model->get_city();
$data['city_name'] = $info['city_name'];
Multiple Results
public function get_city(){
$this->db->select('*');
$this->db->from('cities');
$this->db->join('jobs', 'jobs.city_id = cities.id', 'LEFT');
$query = $this->db->get();
return $query->result_array();
}
And on controller
$data['cities'] = $this->jobs_model->get_city();
View
<?php foreach ($cities as $city) {?>
<?php echo $city['city_name'];?>
<?php }?>
I am giving you a simple SQL for reference -
select cities.name from cities, jobs where jobs.city_id = cities.id
Change your Model to
public function get_city(){
$this->db->select('*');
$this->db->from('cities');
$this->db->join('jobs', 'cities.city_id= jobs.city_id');
$this->db->where('jobs.city_id = cities.id');
$query = $this->db->get();
return $query->result_array()
}
You are comparing wrong field in join query
public function get_city(){
$this->db->select('*');
$this->db->from('cities');
$this->db->join('jobs', 'cities.id = jobs.city_id'); //<---id instead of city_name
//$this->db->where('jobs.city_id = cities.id'); // remove where
$query = $this->db->get();
}
Use this
$this->db->join('jobs', 'cities.city_id = jobs.city_id');
instead of this
$this->db->join('jobs', 'cities.city_name = jobs.city_id');
Should be like this:
join('jobs', 'cities.id = jobs.city_id');
I think that's the issue.
I am using multiple joins but got stuck in this. I am using join of 3 tables but it fetches values of only 2 tables not 3rd one. Here my model query is:
public function seller_products()
{
$this->db->select('*')->select('wc_seller_products.id')->from('wc_seller_products')
->join('wc_seller', 'wc_seller.id = wc_seller_products.seller_id', 'LEFT')
->join('wc_seller_info', 'wc_seller_info.id = wc_seller_products.seller_id', 'LEFT');
$query = $this->db->get();
return $query;
}
It doesn't fetch values of wc_seller table .... please help
public function seller_products()
{
$this->db->select('wc_seller_products.*,wc_seller.*,wc_seller_info.*');
$this->db->from('wc_seller_products');
$this->db->join('wc_seller', 'wc_seller.id = wc_seller_products.seller_id');
$this->db->join('wc_seller_info', 'wc_seller_info.id = wc_seller_products.seller_id');
$query = $this->db->get();
return $query;
}
I am trying to select column name level_name from table levels,
which contains level_id and level_name,
for a user to know what is their level,
The table of users named as users and contain a level_id and user_id,
but I get this error ->
Column 'level_id' in on clause is ambiguous
SELECT `level_name`
FROM `levels`
JOIN `users` ON `level_id` = `level_id` WHERE `user_id` = '9'
here it is the code in the model
public function level_ownprofile($user_id)
{
$this->db->select('level_name');
$this->db->from('levels');
$this->db->join('users', 'level_id = level_id');
$this->db->where('user_id', $user_id);
$query = $this->db->get();
return $query;
}
thanks in advance :)
Change the query to
SELECT `level_name`
FROM `levels` l
JOIN `users` u ON `u`.`level_id` = `l`.`level_id`
WHERE `user_id` = '9'
if you like the table name aliasing method, it is shorter and easier to read.
Or
SELECT `level_name`
FROM `levels`
JOIN `users` ON `users`.`level_id` = `levels`.`level_id`
WHERE `user_id` = '9'
If you prefere to use the full table name everywhere.
Because both tables contain a column with the name level_id the query analyser need to know which one you are addressing.
In codeigniter try
public function level_ownprofile($user_id)
{
$this->db->select('level_name');
$this->db->from('levels l');
$this->db->join('users u', 'u.level_id = l.level_id');
$this->db->where('user_id', $user_id);
$query = $this->db->get();
return $query;
}
Select l.level_name
FROM levels l
JOIN users u
ON u.level_id = l.level_id
and u.user_id = '9'
public function level_ownprofile($user_id)
{
$this->db->select('level_name');
$this->db->from('levels');
$this->db->join('users', 'levels.level_id = users.level_id');
$this->db->where('user_id', $user_id);
$query = $this->db->get();
return $query;
}
public function level_ownprofile($user_id)
{
$this->db->select('l.level_name');
$this->db->from('levels as l');
$this->db->join('users as u', 'l.level_id = u.level_id');
$this->db->where('l.user_id', $user_id);
$query = $this->db->get();
return $query->results();
}