Workflow type table
[Workflow caterory table][2]
public function view_wf_category()
{
$this->db->select('workflow_category.wf_cat','workflow_type.type_name');
$this->db->from('workflow_category');
$this->db->join('workflow_type', 'workflow_type.workflow_type_id = workflow_category.wf_type');
$query = $this->db->get();
foreach($query->result_array() AS $row)
{
echo $row["wf_cat"]."<br/>";
echo $row["type_name"]."<br/>";
}
}
here im not able to print the $row["type_name"] and also showing a notice as undefined index for $row["type_name"].
Try like this...
public function view_wf_category()
{
$this->db->select('workflow_category.wf_cat,workflow_type.type_name')
->from('workflow_category')
->join('workflow_type', 'workflow_type.workflow_type_id = workflow_category.wf_type');
$query = $this->db->get();
foreach($query->result_array() as $row)
{
echo $row["wf_cat"]."<br/>";
echo $row["type_name"]."<br/>";
}
}
Error due to this line..
$this->db->select('workflow_category.wf_cat','workflow_type.type_name');
So it should be just
$this->db->select('workflow_category.wf_cat,workflow_type.type_name');
In above query i have been used query grouping.
Related
My target is to show an echo "No data" when the query result is empty. What happening currently is that when my query is empty, it shows an error. (Please see the picture below for the error) I provided my codes below and my screenshot. Any help will be appreciated. Thank you
Controller:
public function new1($arenaID=0) {
$data['activeNav'] = "";
$data['subnav'] = "arenas";
$this->header($data);
$this->nav();
$data['k1']=$this->arenas->meron1();
$this->load->view('new', $data);
$this->footer();
}
Model:
function meron1(){
$query = $this->db->query("SELECT fightID FROM fight_entries where position='meron' ORDER BY fightID DESC LIMIT 1");
return $query->row()->fightID+1;
}
A better way to do this is just to check the number of rows being returned.
function meron1(){
$query = $this->db->query("SELECT fightID FROM fight_entries where position='meron' ORDER BY fightID DESC LIMIT 1");
if($query->num_rows() > 0){
$query = $query->rows();
return $query->fightID+1;
}else{
$message = "No Data";
return $message;
}
I have created a model which joins 2 tables
function list_get($id){
$this->load->database();
$query = $this->db-> select('*')
->from('lists')
->join('list_items', 'list_items.items_list_id = lists.list_id')
->where('items_list_id', $id);
return $query->get()->row_array();
}
In my controller I created the view_list function
public function view_list($id = !FALSE){
$this->load->model('model_lists');
$data["query"] = $this->model_lists->list_get($id);
$this->load->model('model_lists');
if($data["query"]){
$this->load->view('lists/view_list',$data);
} else {
redirect('lists');
}
}
Now my view returns only the first result from the database
<?php echo $query['item_url'];?> How can I create a foreach to show all the results?
change this line return $query->get()->row_array();
to return $query->get()->result_array();
in view
foreach($query as $querys){
echo $querys['item_url'];
echo '</br>';
}
Change this return $query->get()->row_array(); to this
return $query->result_array();
and in view
foreach($query as $row)
{
echo $row['column_name'];
}
Table products: id, product, lining, ...
Table tbl_lining: id, article, description
Model
public function getliningsale($id)
{
$this->db->select('*');
$this->db->from('products');
$this->db->join('tbl_lining', 'products.lining=tbl_lining.id', 'left');
$this->db->where('products.id', $id); // Also mention table name here
$query = $this->db->get();
if($query->num_rows() > 0)
return $data->result();
}
Controller
function liningsale($id)
{
$data['liningsale'] = $this->sales_model->getliningsale($id);
$this->load->view('add', $data);
}
View
echo '<td><input class="span1 tran2" name="lining\'+ count +\'" type="text"';
echo 'value="';
foreach ($liningsale as $valor) {
echo $valor->article;
echo '-';
echo $valor->description;
echo '">';
}
echo '</td>';
This doesn't display any record.
I've tried several ways without success.
Can anyone help?
In your model, you need to return the $query result.
At the minute you are trying to return the result set of a variable named $data which I presume doesn't exist!!
Try changing return $data->result(); to return $query->result();
Hope that helps!!
My model:
function get_data($id)
{
$this->db->select('id, Company, JobTitle');
$this->db->from('client_list');
$this->db->where('id', $id);
$query = $this->db->get();
return $query->result();
}
I want to get the the data from get_data(), is this the right way?
public function show_data( $id )
{
$data = $this->get_data($id);
echo '<tr>';
echo '<td>'.$data['Company'].'</td>';
echo '<td>'.$data['JobTitle'].'</td>';
echo '<td>'.$data['id'].'</td>';
echo '<td></td>';
echo '</tr>';
}
Use the row_array() function to get the data in the array format.
Reference url
http://ellislab.com/codeigniter/user-guide/database/results.html
you can use foreach loop to print
foreach ($data->result() as $row)
{
echo '<tr>';
echo '<td>'.$row['Company'].'</td>';
echo '<td>'.$row['JobTitle'].'</td>';
echo '<td>'.$row['id'].'</td>';
echo '<td></td>';
echo '</tr>';
}
thank you
just to improve answer, I use "general_model" for all my controllers, there are some exceptions where I need special queries, I just create desired model so "general_model" stays same and I can use it in any project.
e.g.
general_model.php
function _getWhere($table = 'table', $select = 'id, name', $where = array()) {
$this->db->select($select);
$q = $this->db->get_where('`'.$table.'`', $where);
return ($q->num_rows() > 0) ? $q->result() : FALSE;
}
.
.
.
//bunch of another functions
in controller I just call
$this->data['books'] = $this->general_model->_getWhere('book', '*', array('active' => '1'));
$this->render('book_list_view'); // $this->load->view('book_list_view', $this->data);
sidenote: I am extending CI_Controller therefore I use $this->data['books'] instead $data['books'] to pass data into view
in view
//check if there are any data
if ($books === FALSE) {
//some error that there are no books yet
} else {
//load data to table or something
foreach ($books as $book) {
$book->id; // book id
}
}
I do have a question : I cannot pass the data from model to controller
You can see some of my codes, please help me.
It does not work!
this is my model "mymodel.php"
....
$query = $this->db->query("SELECT * FROM `rand` WHERE `used` = 0 LIMIT 0, 1");
if($query){
foreach ($query->result() as $row);
}
$t = "EXAMPLE/{$row->code}";
function wandad() {
return $t;
}
.....
and this is my controller mycont.php
...
$this->load->model('mymodel');
$data['new'] = $this->Mymodel->wandad();
$this->load->view('myview',$data);
...
and this is my view myview.php
....
echo $new;
.....
Clearly you The model is not written properly and to corrent this simple do this
1.) I put a default value on $t
2.) I put the query >> loop on the inside function
wandad
so it can be executed once called from controller
function wandad() {
$query = $this->db->query("SELECT * FROM `rand` WHERE `used` = 0 LIMIT 0, 1");
$t = "";
if($query){
foreach ($query->result() as $row){
$t = "EXAMPLE/{$row->code}".'<br>';
}
}
return $t;
}
Here are several issues into your model
Your Foreach function doesn't do anything
$t is not in the same namespace than wandad()
Function wandad is not defined into your model class
I'm not sure of what you wanna get with wandad() function but here's a pattern.
function yourFunction()
{
/* This will return the full query as an array */
$query = $this->db->query("SELECT * FROM `rand` WHERE `used` = 0 LIMIT 0, 1")->result_array();
/* Store variable in the same class */
$this->t = "EXAMPLE/".$query[0]['code'];
/* Close yourFunction() */
}
public function wandad() {
return $this->t;
}
Then into your controller, do that instead :
$this->load->model('mymodel');
$this->mymodel->yourFunction();
$data['new'] = $this->mymodel->wandad();
$this->load->view('myview',$data);
#Touki his foreach actually does something. It will set the variable $row with the last row that is returned from the query. Not the best way to do it ... But it's a way. Better would be to use a limit in the query.
There is a small mistake in your code #Ernesto.that is
foreach ($query->result() as $row){
$t. = "EXAMPLE/{$row->code}".'<br>';
}
but your code was simply nice