CodeIgniter Datatables server-side processing<\/b>.<\/p>\ncodeigniter_datatables\/<\/span>\r\n\u251c\u2500\u2500 application\/<\/span>\r\n\u2502 \u251c\u2500\u2500 controllers\/<\/span>\r\n\u2502 \u2502 \u2514\u2500\u2500 Members.php\r\n\u2502 \u251c\u2500\u2500 models\/<\/span>\r\n\u2502 \u2502 \u2514\u2500\u2500 Member.php\r\n\u2502 \u2514\u2500\u2500 views\/<\/span>\r\n\u2502 \u2514\u2500\u2500 members\/<\/span>\r\n\u2502 \u2514\u2500\u2500 index.php\r\n\u2514\u2500\u2500 assets\/<\/span>\r\n \u251c\u2500\u2500 DataTables\/<\/span>\r\n \u2502 \u251c\u2500\u2500 datatables.min.js\r\n \u2502 \u2514\u2500\u2500 datatables.min.css\r\n \u2514\u2500\u2500 js\/<\/span>\r\n \u2514\u2500\u2500 jquery.min.js\r\n<\/pre>\nCreate Database Table<\/h2>\n
A table needs to be created in the database from where the server-side data will be fetched by the DataTables library<\/b>. The following SQL creates a members<\/code> table with some basic fields in the MySQL database.<\/p>\nCREATE<\/span> TABLE<\/span> `members`<\/span> (\r\n `id`<\/span> int<\/span>(11<\/span>) NOT<\/span> NULL<\/span> AUTO_INCREMENT,\r\n `first_name`<\/span> varchar<\/span>(25<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/span>,\r\n `last_name`<\/span> varchar<\/span>(25<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/span>,\r\n `email`<\/span> varchar<\/span>(50<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/span>,\r\n `gender`<\/span> enum('Male'<\/span>,'Female'<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/span>,\r\n `country`<\/span> varchar<\/span>(20<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/span>,\r\n `created`<\/span> datetime NOT<\/span> NULL<\/span>,\r\n `status`<\/span> tinyint(1<\/span>) NOT<\/span> NULL<\/span> DEFAULT<\/span> '1'<\/span> COMMENT<\/span> '1=Active | 0=Inactive'<\/span>,\r\n PRIMARY KEY<\/span> (`id`<\/span>)\r\n) ENGINE<\/span>=InnoDB<\/span> DEFAULT<\/span> CHARSET<\/span>=utf8 COLLATE<\/span>=utf8_unicode_ci;<\/pre>\nConfig<\/h2>\n
autoload.php<\/code><\/b>
\nSpecify some useful library and helper to loaded by default.<\/p>\n$autoload<\/span>[<\/span>'libraries'<\/span>] = array(<\/span>'database'<\/span>);
<\/span>$autoload<\/span>[<\/span>'helper'<\/span>] = array(<\/span>'url'<\/span>);<\/span><\/pre>\nController (Members.php)<\/h2>\n
The Members controller contains 3 functions, __construct()<\/code>, index()<\/code>, and getLists()<\/code>.<\/p>\n\n- __construct()<\/b> \u2013 Load the member model.<\/li>\n
- index()<\/b> \u2013 Load the member’s list view.<\/li>\n
- getLists()<\/b> – This function handles server-side processing and is called by Ajax method of DataTable.\n
\n- Fetch member’s records from the database using
getRows()<\/code> function of Member model.<\/li>\n- The data is filtered based on the $_POST parameters posted by the Datatables.<\/li>\n
- Prepare data for Datatables.<\/li>\n
- Render output as JSON format.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
<?php
defined<\/span>(<\/span>'BASEPATH'<\/span>) OR exit(<\/span>'No direct script access allowed'<\/span>);
class <\/span>Members <\/span>extends <\/span>CI_Controller<\/span>{
function <\/span>__construct<\/span>(){
<\/span>parent<\/span>::<\/span>__construct<\/span>();
<\/span>\/\/ Load member model
<\/span>$this<\/span>-><\/span>load<\/span>-><\/span>model<\/span>(<\/span>'member'<\/span>);
}
function <\/span>index<\/span>(){
<\/span>\/\/ Load the member list view
<\/span>$this<\/span>-><\/span>load<\/span>-><\/span>view<\/span>(<\/span>'members\/index'<\/span>);
}
function <\/span>getLists<\/span>(){
<\/span>$data <\/span>= <\/span>$row <\/span>= array();
<\/span>\/\/ Fetch member's records
<\/span>$memData <\/span>= <\/span>$this<\/span>-><\/span>member<\/span>-><\/span>getRows<\/span>(<\/span>$_POST<\/span>);
<\/span>$i <\/span>= <\/span>$_POST<\/span>[<\/span>'start'<\/span>];
foreach(<\/span>$memData <\/span>as <\/span>$member<\/span>){
<\/span>$i<\/span>++;
<\/span>$created <\/span>= <\/span>date<\/span>( <\/span>'jS M Y'<\/span>, <\/span>strtotime<\/span>(<\/span>$member<\/span>-><\/span>created<\/span>));
<\/span>$status <\/span>= (<\/span>$member<\/span>-><\/span>status <\/span>== <\/span>1<\/span>)?<\/span>'Active'<\/span>:<\/span>'Inactive'<\/span>;
<\/span>$data<\/span>[] = array(<\/span>$i<\/span>, <\/span>$member<\/span>-><\/span>first_name<\/span>, <\/span>$member<\/span>-><\/span>last_name<\/span>, <\/span>$member<\/span>-><\/span>email<\/span>, <\/span>$member<\/span>-><\/span>gender<\/span>, <\/span>$member<\/span>-><\/span>country<\/span>, <\/span>$created<\/span>, <\/span>$status<\/span>);
}
<\/span>$output <\/span>= array(
<\/span>\"draw\" <\/span>=> <\/span>$_POST<\/span>[<\/span>'draw'<\/span>],
<\/span>\"recordsTotal\" <\/span>=> <\/span>$this<\/span>-><\/span>member<\/span>-><\/span>countAll<\/span>(),
<\/span>\"recordsFiltered\" <\/span>=> <\/span>$this<\/span>-><\/span>member<\/span>-><\/span>countFiltered<\/span>(<\/span>$_POST<\/span>),
<\/span>\"data\" <\/span>=> <\/span>$data<\/span>