I'm using codeigniter with datatables and i want to order a select by a column.
How can i do that ?
$this->datatables->select('col_1, col_2, col_3');
$this->datatables->from('table');
....$this->datatables->order ?!?
Thanks
use:
$this->db->order_by("column name", "desc");
You can use the aaSorting parameter to order the table on initialization.
$(document).ready( function() {
$('#example').dataTable( {
"aaSorting": [[2,'asc'], [3,'desc']]
} );
} );
where 2 and 3 are column's index
You can use this way i am controlling here all required value with codeigniter DATA-TABLE and MYSQL select include a small joining
function get_ComponentList($rowperpage, $row, $search='',$order, $dir)
{
$this->db->select('a.component_id, a.component_name as component_name, a.eco_code as eco_code, b.component_name as parent_name');
$this->db->from('component_info as a');
$this->db->join('component_info as b', 'b.component_id = a.parent_id', 'left');
$this->db->order_by($order,$dir);
if($search != ''){
$this->db->like('a.component_name', $search);
$this->db->or_like('a.eco_code', $search);
$this->db->or_like('b.component_name', $search);
}
$this->db->limit($rowperpage,$row);
$query = $query->result();
return $query;}
As you want to use with $this->datatables, you need to make a custom function for that, add the below custom function in Datatables.php library file:
public function corder_by($column, $type = ASC)
{
$this->order_by[] = array($column, $type);
$this->ci->db->order_by($column, $type);
return $this;
}
If the sorting type is not defined "ASC/DESC", then it will by default sort as "Ascending".
And use it as:
$this->datatables->corder_by('column_name','desc');
Related
I have sql query in controller, this query produces number of rows.
$q1 = $this->db->query("SELECT product_code,product_quantity FROM tbl_order_details WHERE order_id='$order_no' AND location='$location'")->row();
foreach($q1 as $v_barcode){
$result = $this->settings_model->update_cancel_stock($v_barcode->product_code,$v_barcode->product_quantity);
}
then i pass this data to my model,
public function update_cancel_stock($code,$qty)
{
$this->db->set('product_quantity', $qty , FALSE);
$this->db->where('product_id', $order );
$this->db->update("tbl_inventory6");
}
but no any update. please check above code. thanx
Try this
$cond = array("order_id" => $order_no, "location" => $location);
$q1 = $this->db->select("product_code,product_quantity")->from("tbl_order_details")->where($cond)->row();
$result = $this->settings_model->update_cancel_stock($q1->product_code,$q1->product_quantity);
and then model ($code was not used)
public function update_cancel_stock($code,$qty){
$this->db->set('product_quantity', $qty , FALSE);
$this->db->where('product_id', $code);
$this->db->update('tbl_inventory6');
}
You are using row() function of Active Record. It already return only one row. So there is no requirement of foreach. Try this:
$q1 = $this->db->query("SELECT product_code,product_quantity FROM tbl_order_details WHERE order_id='$order_no' AND location='$location'")->row();
$result = $this->settings_model->update_cancel_stock($q1->product_code,$q1->product_quantity);
If you are getting multiple records and you are using foreach, you should use result().
$q1 = $this->db->query("SELECT product_code,product_quantity FROM tbl_order_details WHERE order_id='$order_no' AND location='$location'")->result();
foreach($q1 as $v_barcode){
$result = $this->settings_model->update_cancel_stock($v_barcode->product_code,$v_barcode->product_quantity);
}
Is the below code safe from SQL injection?
if ($request->has('sort')) {
$s = $request->sort;
if ($request->has('asc')) {
$a = $request->asc;
} else {
$a = 'asc';
}
$query->orderByRaw("ISNULL({$s}), {$s} " . $a);
}
No. As the name suggests, it inserts a raw expression. That is, unsanitized.
If you’re wanting to sort a query, just sort when the require query string parameter(s) are provided:
if ($sort = $request->query('sort')) {
$direction = $request->query('direction');
if (! in_array($direction, ['asc', 'desc'])) {
$direction = 'asc'; // default direction
}
$query->orderBy($sort, $direction);
}
The problem with RAW queries are much more in the bindings (user data) than in the sql query itself, that's why you should avoid them. But it is safer if you add the bindings separately:
public function orderByRaw($sql, $bindings = []) {...}
There is a better approach to achieve this kind of conditional query using when for example:
// You have the $query instance already...
$sort = $request->get('sort');
$query->when($sort, function($query) use($request) {
$order = $request->asc ?: 'asc';
return $query->orderBy($sort, $order);
});
Now, the orderBy will be applied only when the $sort is available and you can add more query constrains further and execute it like:
// $query->where(...);
$result = $query->get();
My Laravel pagination output is like laravel pagination used to be, but I need to change the data array for each object.
My output is:
As you can see, the data object has 2 items, which I need to change.
My code is:
$items = $this->items()
->where('position', '=', null)
->paginate(15);
Which returns the user items with pivot table, but I don't like the way the pivot table is shown in the JSON, so I decided to change the items and organize each item with the pivot before the item.
For this purpose, I tried to use foreach
foreach ($items->data as $item)
{
}
which giving my an error, for a reason I don't know:
Undefined property: Illuminate\Pagination\LengthAwarePaginator::$data"
status_code: 500
Any help?
The paginator's items is a collection. You can grab it and transform the data like so:
$paginator = $this->items()->where('position', '=', null)->paginate(15);
$paginator->getCollection()->transform(function ($value) {
// Your code here
return $value;
});
If you are familiar with tap helper here is the snippet that does exact same.
$paginator = tap($this->items()->where('position', '=', null)->paginate(15),function($paginatedInstance){
return $paginatedInstance->getCollection()->transform(function ($value) {
return $value;
});
});
We can't chain method getCollection to paginator instance because AbstractPaginator will return paginator's underlying collection. so the paginator instance will be transformed to Collection. So fix that we can use tap helper.
If you'd like to keep items paginated:
$itemsPaginated = $this->items()
->paginate(15);
$itemsTransformed = $itemsPaginated
->getCollection()
->map(function($item) {
return [
'id' => $item->id,
];
})->toArray();
$itemsTransformedAndPaginated = new \Illuminate\Pagination\LengthAwarePaginator(
$itemsTransformed,
$itemsPaginated->total(),
$itemsPaginated->perPage(),
$itemsPaginated->currentPage(), [
'path' => \Request::url(),
'query' => [
'page' => $itemsPaginated->currentPage()
]
]
);
There is a setCollection method for such purpose.
$items = Model::paginate(10);
$updatedItems = $items->getCollection();
// data manipulation
// ...
$items->setCollection($updateItems);
From the source code of /Illuminate/Pagination/AbstractPaginator.php
/**
* Set the paginator's underlying collection.
*
* #param \Illuminate\Support\Collection $collection
* #return $this
*/
public function setCollection(Collection $collection)
{
$this->items = $collection;
return $this;
}
Source
I could make shorter way. This returns edited $array instead of simple $paginated. This example modify file names.
This doc was useful for me.
$paginated=$query->paginate(12);
$array=$paginated->toArray();
foreach ($array['data'] as $r=>$record) {
$array['data'][$r]->gif=$array['data'][$r]->gif.".gif";
}
return $array;
Sample Example :
$franchiseData=[ 'id'=>1 ,'name'=>'PAnkaj'];
$models = $bookingsQuery->paginate(10);
$models->setCollection(collect($franchiseData));
return $models;
Note that $models->setCollection(collect($franchiseData)); you have to use collect() else you will get error.
getCollection
is one way to get the items. Another way is to use this
For ex- Assuming, user doesn't have name param and only have first_name and last_name
$userPaginatedData = User::paginate(15);
$users = $userPaginatedData->items();
foreach($users as $user) {
$user->name = $user->first_name . ' ' . $user->last_name;
}
return $userPaginatedData;
Now in the data key, you would see that each user has name param with it.
Laravel 8.9.0 has added the through method to AbstractPaginator.
It transforms each item in the slice of items using a callback, and keeps the items paginated.
$paginator = $this->items()->where('position', '=', null)->paginate(15);
$paginator->through(function ($value) {
// Your code here
return $value;
});
The source code:
/**
* Transform each item in the slice of items using a callback.
*
* #param callable $callback
* #return $this
*/
public function through(callable $callback)
{
$this->items->transform($callback);
return $this;
}
-Laravel 5.4
// example update column "photo"
// from "/path/to/photo.png"
// to "abc.com/path/to/photo.png"
foreach ($items as $item)
{
$path = $item->photo;
// Remove
$item->offsetUnset("photo");
// Set
$item->offsetSet("photo", url($path));
}
Laravel AbstractPaginator has methods setCollection() and getCollection()
<?php
$itemsPaginated = $this->items()->paginate(15);
$itemsPaginated->setCollection(
$itemsPaginated->getCollection()->transform(function ($item) {
// Your code here
return $item;
})
)
This is your paginated items...
$items = $this->items()
->where('position', '=', null)
->paginate(15);
I am using Laravel 8, can simply use each
$items->each(function ($item) {
// your code here
$item->custom_data = calcSomeData(); // sample
});
It does the same as this...
$items->getCollection()->transform(function ($item) {
// your code here
$item->custom_data = calcSomeData(); // sample
});
<?php
$itemsPaginated = $this->items()->paginate(15);
$itemsPaginated = json_encode($itemsPaginated);
foreach ($itemsPaginated->data as $key => $item) {
$results->data[$key]; //Modify
}
$itemsPaginated = json_encode($results);
you have to use below code in your blade
{!! $items->render() !!}
Ignore the pagination in laravel and hit the normal data
foreach ($items as $item)
{
}
Is there any codeigniter function to do this?
try this code:
$this->db->insert_id();
Refer:
https://www.codeigniter.com/user_guide/database/helpers.html
There is no special function for that. But you can get the id of row that you've just inserted and then get it's data:
$this->db->insert('table_name', $data);
$id = $this->db->insert_id();
$q = $this->db->get_where('table_name', array('id' => $id));
return $q->row();
I have tips for you. When you want to insert data, please return your data array and you can edit it.
public function set_alb_photos() {
$data = array(
'alp_title' => $this->input->post('alp_title'),
'alp_file_location' => $this->input->post('alp_file_location'),
'alp_album_id' => $this->input->get('alb_id'),
'alp_created_at' => date("Y-m-d H:i:s"),
'alp_updated_at' => date("Y-m-d H:i:s")
);
$this->db->insert('alb_photos', $data);
return $data;
}
I hope this help.
Use Active Record method after insertion. return last inserted id
function insert($data)
{
$this->db->insert('tablename', $data);
return $this->db->insert_id();
}
Here is reference
This will help you to get last inserted row from the table.
$last = $this->db->order_by('id',"desc")->limit(1)->get('tablename')->row();
print_r($last);
You can get inserted data by below code,
$query = $this->db->get_where('table1', array('id' => $id)); //get inserted data
return $query->result_array();
Refer:https://www.codeigniter.com/user_guide/database/query_builder.html
What about :
$this->db->get('mytable', 1,0)
Try this only with active record of codeigniter. This code gives you the last row of your table.
$this->db->limit(1);
$this->db->order_by('id','desc');
$query = $this->db->get('tablename');
return $query->result_array();
Try this depending on the options and return :
$data = {} //your array;
// now if your $data array contained all the values of the new row just do this
function yourFunction(){
// insert into array into db
$this->db->insert('table_name', $data);
// get created rows id
$id = $this->db->insert_id();
// update your $data array with the new generated id and return it
$data['id'] = $id;
return $data;
}
// Option 2: if row has fields that auto populates (example current timestamp)
function yourFunctionAlt(){
// insert into array into db
$this->db->insert('table_name', $data);
// get created rows id
$id = $this->db->insert_id();
// get row as a array
$_rowArray = $this-db->get_where('table_name',array('id'=>$id)->row_array();
return $_rowArray;
// or get as a object
$_Object = $this->db->get_where('table_name',array('id'=>$id);
return $_Object;
}
I would like to return the query results along w/ the row count without having to run multiple queries. Is this possible in Codeigniter? The following works for returning the query results, but is it possible to also count the number of entries found?
Controller:
$data['records'] = $this->item_model->searchItem($item_name);
Model:
$query = $this->db->query($sql, array($this->user_id, '%'.$item_name.'%'));
return $query->result();
$bindings = array($this->user_id, '%'.$item_name.'%');
$records = $this->db->query($sql, $bindings)->result();
return array(
'records' => $records,
'count' => count($records),
);
Then, in your controller:
$query = $this->item_model->searchItem($item_name);
$data['records'] = $query['records'];
$data['count'] = $query['count'];
Option one
$query = $this->db->query($sql, array($this->user_id, '%'.$item_name.'%'));
$data['result'] = $query->result();
$data['rows'] = $query->num_rows();
return $data;
Option two
// model
$query = $this->db->query($sql, array($this->user_id, '%'.$item_name.'%'));
return $query;
// controller
$data['query'] = $this->item_model->searchItem($item_name);
// then you have $data['query']->result();
// and $data['query']->num_rows();
You can send as many variables from a function as you want ..However plz remember that a function is supposed to do one UNIT of work . thus this rule must not be violated.
we can used contrel structure
if this {return A;} elseif () {return B;} else {return C;}
ALso we can send (bundle) variables in an array and send