menu-btn

Pagination

October CMS Documentation Docs
/

Pagination

# Basic usage

There are a few ways to paginate records, the most common is to call the paginate method on a query or model. This will return a special paginated collection that adds extra methods for displaying the results.

# Paginating Query Builder Results

There are several ways to paginate items. The simplest is by using the paginate method on the query builder or a model query. The paginate method automatically takes care of setting the proper limit and offset based on the current page being viewed by the user. By default, the current page is detected by the value of the ?page query string argument on the HTTP request. Of course, this value is automatically detected and automatically inserted into links generated by the paginator.

First, let's take a look at calling the paginate method on a query. In this example, the only argument passed to paginate is the number of items you would like displayed "per page". In this case, let's specify that we would like to display 15 items per page:

$users = Db::table('users')->paginate(15);

Note: Currently, pagination operations that use a groupBy statement cannot be executed efficiently. If you need to use a groupBy with a paginated result set, it is recommended that you query the database and create a paginator manually.

# Simple pagination

If you only need to display simple "Next" and "Previous" links in your pagination view, you have the option of using the simplePaginate method to perform a more efficient query. This is very useful for large datasets if you do not need to display a link for each page number when rendering your view:

$users = Db::table('users')->simplePaginate(15);

# Paginating Model Results

You may also paginate database model queries. In this example, we will paginate the User model with 15 items per page. As you can see, the syntax is nearly identical to paginating query builder results:

$users = User::paginate(15);

Of course, you may call paginate after setting other constraints on the query, such as where clauses:

$users = User::where('votes', '>', 100)->paginate(15);

You may also use the simplePaginate method when paginating models:

$users = User::where('votes', '>', 100)->simplePaginate(15);

You may specify the page number manually by passing a second argument, here we paginate 15 items per page, specifying that we are on page 2:

$users = User::where('votes', '>', 100)->paginate(15, 2);

# Manually Creating a Paginator

Sometimes you may wish to create a pagination instance manually, passing it an array of items. You may do so by creating either an Illuminate\Pagination\Paginator or Illuminate\Pagination\LengthAwarePaginator instance, depending on your needs.

The Paginator class does not need to know the total number of items in the result set, because of this the class does not have methods for retrieving the index of the last page. The LengthAwarePaginator accepts almost the same arguments as the Paginator, however it does require a count of the total number of items in the result set.

In other words, the Paginator corresponds to the simplePaginate method on the query builder and models, while the LengthAwarePaginator corresponds to the paginate method.

When manually creating a paginator instance, you should manually "slice" the array of results you pass to the paginator. If you're unsure how to do this, check out the array_slice (opens new window) PHP function.

# Displaying Results in a View

When you call the paginate or simplePaginate methods on a query builder or model query, you will receive a paginator instance. When calling the paginate method, you will receive an instance of Illuminate\Pagination\LengthAwarePaginator. When calling the simplePaginate method, you will receive an instance of Illuminate\Pagination\Paginator. These objects provide several methods that describe the result set. In addition to these helpers methods, the paginator instances are iterators and may be looped as an array.

So once you have retrieved the results, you may display the results and render the page links using Twig:

<div class="container">
    {% for user in users %}
        {{ user.name }}
    {% endfor %}
</div>

{{ users.render|raw }}

The render method will render the links to the rest of the pages in the result set. Each of these links will already contain the proper ?page query string variable. The HTML generated by the render method is compatible with the Bootstrap CSS framework (opens new window).

Note: When calling the render method from a Twig template, be sure to use the |raw filter so the HTML links are not escaped.

# Customizing the paginator URI

The setPath method allows you to customize the URI used by the paginator when generating links. For example, if you want the paginator to generate links like http://example.com/custom/url?page=N, you should pass custom/url to the setPath method:

$users = User::paginate(15);
$users->setPath('custom/url');

You may add to the query string of pagination links using the appends method. For example, to append &sort=votes to each pagination link, you should make the following call to appends:

{{ users.appends({sort: 'votes'}).render|raw }}

If you wish to append a "hash fragment" to the paginator's URLs, you may use the fragment method. For example, to append #foo to the end of each pagination link, make the following call to the fragment method:

{{ users.fragment('foo').render|raw }}

# Additional helper methods

You may also access additional pagination information via the following methods on paginator instances:

$results->count()
$results->currentPage()
$results->hasMorePages()
$results->lastPage() // Not available when using simplePaginate
$results->nextPageUrl()
$results->perPage()
$results->previousPageUrl()
$results->total() // Not available when using simplePaginate
$results->url($page)

# Converting results to JSON

The paginator result classes implement the Illuminate\Contracts\Support\JsonableInterface contract and expose the toJson method, so it's very easy to convert your pagination results to JSON. You may also convert a paginator instance to JSON by simply returning it from a route or AJAX handler:

Route::get('users', function () {
    return User::paginate();
});

The JSON from the paginator will include meta information such as total, current_page, last_page, and more. The actual result objects will be available via the data key in the JSON array. Here is an example of the JSON created by returning a paginator instance from a route:

# Example Paginator JSON

{
    "total": 50,
    "per_page": 15,
    "current_page": 1,
    "last_page": 4,
    "next_page_url": "http://octobercms.app?page=2",
    "prev_page_url": null,
    "from": 1,
    "to": 15,
    "data":[
        {
            // Result Object
        },
        {
            // Result Object
        }
    ]
}

← Parser →