Bucket Paginator

Paginator using the Bucket Pattern to allow paginating over POST form results

Installation

It is recommended to install the extension using composer with composer require dmind/bucket-pagination

Recommended

The NumberedPaginator is recommended for easier pagination over the bucket paginator.

Usage

Below are 2 example usages of each paginator in combination with the NumberedPaginator.

BucketPaginator

You can pass items to save into a bucket, which can be retrieved again with the generated bucket ID. It is also possible to update the items in the bucket, so you can either don't pass items if a bucket is passed to the request or pass items if there is a need to update the bucket (if f.e. changes happened to the results).

An example usage:

$itemsToBePaginated = ['apple', 'banana', 'strawberry', 'raspberry', 'pineapple'];
$filter = (new Filter())->setTitle('apple');
$itemsPerPage = 10;
$maximumLinks = 15;

$currentPage = $this->request->hasArgument('currentPage') ? (int)$this->request->getArgument('currentPage') : 1;
$currentBucketId = $this->request->hasArgument('bucketId') ? $this->request->getArgument('bucketId') : '';

$paginator = new BucketPaginator(
    // if you pass new/changed items while also passing a bucket ID
    // it'll update the items in the bucket
    $currentBucketId ? null : $itemsToBePaginated,
    // optional elements to store into the bucket (f.e. filter objects)
    // the currently passed elements will be ignored if no items are passed
    // and the optional arguments from the existing bucket will be used
    ['filter' => $filter],
    // either the current bucket ID or an empty string
    // it'll generate its own bucket ID if not set based on the items and optional elements
    $currentBucketId,
    // current page to display
    $currentPage,
    // amount of items per page
    $itemsPerPage
);

$pagination = new NumberedPagination($paginator, $maximumLinks);

You can retrieve the bucket contents and additional items freely during the template as well:

<f:if condition="{pagination.paginator.additionalContent.filter}">
    You filtered for {pagination.paginator.additionalContent.filter.title}
    <br/>
    (Bucket ID: {pagination.paginator.bucketId})
    <br/>
</f:if>
<hr/>

<f:for each="{pagination.paginator.paginatedItems}" as="item">
    {item.title}
    <br/>
</f:for>

DataSourcePaginator

Another option (f.e. due to storage reasons or to refresh results) would be to use the DataSourcePaginator to generate the items we are paginating over from the bucket contents. The advantages are smaller bucket sizes and automatically current results.

$productRepository = GeneralUtility::makeInstance(ProductRepository::class);
$filter = (new Filter())->setTitle('apple');
$itemsPerPage = 10;
$maximumLinks = 15;

$currentPage = $this->request->hasArgument('currentPage') ? (int)$this->request->getArgument('currentPage') : 1;
$currentBucketId = $this->request->hasArgument('bucketId') ? $this->request->getArgument('bucketId') : '';

$paginator = new DataSourcePaginator(
    // the data source which implements the \Dmind\BucketPagination\DataSourceInterface
    // to retrieve the items from based on the bucket contents
    $productRepository,
    // bucket content which will be passed to the DataSource
    // if you pass new/changed arguments while also passing a bucket ID
    // it'll update the items in the bucket
    $currentBucketId ? []: ['filter' => $filter],
    // either the current bucket ID or an empty string
    // it'll generate its own bucket ID if not set based on the items and optional elements
    $currentBucketId,
    // current page to display
    $currentPage,
    // amount of items per page
    $itemsPerPage
);

$pagination = new NumberedPagination($paginator, $maximumLinks);

Here you can also retrieve the bucket content as well:

<f:if condition="{pagination.paginator.bucketContent.filter}">
    You filtered for {pagination.paginator.bucketContent.filter.title}
    <br/>
    (Bucket ID: {pagination.paginator.bucketId})
    <br/>
</f:if>
<hr/>

<f:for each="{pagination.paginator.paginatedItems}" as="item">
    {item.title}
    <br/>
</f:for>

License

This project is licensed under the GPL v3.0 - see the LICENSE file for details