How do load dynamic data tables ajax with pagination in Codeigniter. 100 records in db 1st loading in 10 records next on click again load next 10 records from database.
Here's the good example for pagination using codeigniter
http://codesamplez.com/development/codeigniter-pagination-tutorial
Related
I want to use Yajra DataTables to display user data. There are more than 100000 registered users on my website. I want to know does Yajra supports data of 100000 users or not?
Yajra DataTables is a package that handles the server-side works of DataTables using Laravel.
Data will be fetched using ajax request & it will be in pagination format. so no issue if users are 100000 or more than this.
You can set the row limit per page.
I have a slider component with a back and forward button and I want to get data in sort of pagination how can I do this?
I just want to do this without using Vue.js or livewire just laravel , JS and JQuery.
Laravel's Query Builder provides a paginate method that gives you a LengthAwarePaginator. Normally, you would render this in a blade view with $items->links(), but instead you can convert its result to JSON (https://laravel.com/docs/8.x/pagination#converting-results-to-json). That way you can use the results in JavaScript any way you'd like.
First, why using slider to create a pagination? there are better approach like lazy load, filter column, and simple pagination. lazy load is best for performance i guess.
If you insist to create a slider component, just wondering, how many data that you have? and how many data that you want to retrieve to screen? Imagine, you have more than 1.000.000 rows in your database, you sure wouldn't want to query for them all for real time updates to your screen. Why i tell you 'query them all'?
Let me tell you, if you do a pagination using laravel default pagination (using limit and offset), the flow behind this is like this:
DB will select all of your rows that you have
DB will limit your row depends on limit parameter
DB will scan row one-by-one to match the offset that you want
DB will retrieve the data that you want
With that flow, that's why pagination (limit & offset) is not good enough if you have a lot of data. The solution is change your pagination logic from limit & offset to query like this (case: auto incremental id):
SELECT
*
FROM
payments
WHERE
Id > 15
LIMIT 20
or for descending approach, you can query like this:
SELECT
*
FROM
payments
WHERE
Id < 50
ORDER BY Id DESC
LIMIT 20
Then in laravel, send a json that include a pagination data. So, in javascript you just have to align the pagination data with library or your own pagination logic.
I have table in mysql with 20000 records.
How can I retrieve data faster?
I used datatable plugin for pagination and I also use codeigniter.
It took about one minute to split records to about 4000 page
please use pagination [ci Pagination, php pagination, jquery pagination ajax(faster than others) ] if you are using bootstrap datatable its not working because datatable fetch all the data in one hit after that it breaks data on view which is time consuming you need to break the data in small groups like 20-20 or 50-50 and you need to fetch data in every hit of pagination numbers.
if you are usign ci pagination it will reload on every page hit however if you are using jquery pagination it help you to fetch data in every number hit without refreshing the pages.
please go through the following link: https://phppot.com/php/ajax-pagination-with-php/
in order to implement ajax pagination.
Create view and load table headers
add id on tbody
start ajax pass number want to break = 50, and page = 1
send those value to controller and fetch data as per page.
in your modal you need to add limit and offset which will revised on every hit of pagination number.
I'm new to Django & web dev and looking for guidance on getting server-side processing working with my datatable.
Basically, I have an external .db SQLite file with 500k records and I would like to display the records on a bootstrap datatable.
In my views.py file, whenever they visit index.html, I make a query statement to fetch the records (not sure if that's inefficient but it's a small hobby website)
groups = cursor.execute("""SELECT * FROM PlayerGroups""")
return render(request, 'home/index.html', {'groups': groups}) # the issue since it returns 500k records which is too much for the client to handle.
I understand I need to put something like this in "index.html":
<script>
$(document).ready(function(){
$('#example').dataTable( {
"bProcessing": true,
"bServerSide": true,
"sAjaxSource": <confused about this part...>
});
});
</script>
I'm confused about making my own database API and linking the ajax source to my views/urls file. All of the guides I've looked online show server-side processing with models and stuff. I just have a external .db file I want to show on a datatable.
Any guidance or help would mean a lot.
No you don't want to query and display 500,000 records. That's too heavy for both frontend and backend. One solution is pagination.
Divide frontend into pages. Each page displays a fixed number, 10 for example, of records. When users request the first page, query the first 10 records in your db table. When users request the next page, query the next 10 records. And so on.
You can accomplish that using sqlite LIMIT and OFFSET clauses
SELECT
id, name
FROM
table
LIMIT 10 OFFSET offset;
where offset = page_number * 10.
Have basic performance question--
i need to display an table of 7 columns that has say example million records (partial post info of custom post type fields )
my pagination logic shows only first 5 records on home page , upon click on pagination button it shows next 5 records and so on till end of records (i.e million records .)
since it is home page , i am not sure if having this table on landing page will affect the loading time ??
i am pulling the records via ajax method along with pagination logic , does it mean when an user visits my home page , millions of records are fetched first and then my home page will be loaded ??
or is it only first 5 records would be fetched and my home page will be displayed .
whats the best solution to deal with this situation , i need table at my home page for users to shows first 5 records under table