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<?php |
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namespace FL\Assistant\Data; |
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/** |
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* Class Pager |
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* @package FL\Assistant\Data |
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*/ |
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class Pager { |
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/** |
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* @var array |
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*/ |
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protected $items; |
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|
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/** |
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* @var int |
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*/ |
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protected $total; |
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|
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/** |
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* @var int |
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*/ |
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protected $limit; |
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|
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/** |
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* @var int |
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*/ |
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protected $offset; |
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/** |
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* @var mixed |
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*/ |
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protected $last_page; |
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/** |
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* @var float |
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*/ |
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protected $current_page; |
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|
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/** |
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* @var bool |
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*/ |
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protected $has_more; |
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|
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/** |
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* Pager constructor. |
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* |
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* @param array $items |
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* @param int $total |
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* @param int $limit |
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* @param int $offset |
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*/ |
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public function __construct( array $items = [], $total = 0, $limit = 20, $offset = 0 ) { |
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|
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$this->items = $items; |
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$this->total = intval( $total ); |
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$this->limit = intval( $limit ); |
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$this->offset = intval( $offset ); |
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|
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if ( 0 === count( $items ) || 0 === $this->total || 0 === $this->limit ) { |
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$this->last_page = 1; |
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$this->current_page = 1; |
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$this->has_more = false; |
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} else { |
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$this->last_page = max( (int) ceil( $this->total / $this->limit ), 1 ); |
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$this->current_page = ceil( ( $this->offset + 1 ) / $this->limit ); |
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$this->has_more = ( $this->current_page < $this->last_page ); |
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} |
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} |
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|
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/** |
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* @return array |
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*/ |
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public function items() { |
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return $this->items; |
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} |
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|
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/** |
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* @param array $items |
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* |
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* @return Pager |
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*/ |
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public function set_items( array $items = [] ) { |
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$this->items = $items; |
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|
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return $this; |
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} |
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|
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/** |
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* Transforms the internal items array |
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* |
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* @param callable $transformer |
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* |
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* @return Pager |
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*/ |
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public function apply_transform( callable $transformer ) { |
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$this->items = array_map( $transformer, $this->items ); |
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return $this; |
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} |
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|
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|
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/** |
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* @return int |
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*/ |
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public function total() { |
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return $this->total; |
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} |
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|
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|
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/** |
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* @return int |
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*/ |
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public function limit() { |
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return $this->limit; |
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} |
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|
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|
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/** |
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* @return int |
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*/ |
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public function offset() { |
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return $this->offset; |
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} |
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|
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|
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/** |
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* @return mixed |
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*/ |
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public function last_page() { |
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return $this->last_page; |
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} |
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|
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|
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/** |
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* @return float |
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*/ |
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public function current_page() { |
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return $this->current_page; |
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} |
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|
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|
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/** |
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* @return bool |
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*/ |
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public function has_more() { |
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return $this->has_more; |
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} |
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|
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|
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/** |
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* @return array |
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*/ |
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public function to_array() { |
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return [ |
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'items' => $this->items, |
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'items_count' => $this->total, |
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'items_per_page' => $this->limit, |
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'current_page' => $this->current_page, |
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'current_offset' => $this->offset, |
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'first_page' => 1, |
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'last_page' => $this->last_page, |
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'has_more' => $this->has_more, |
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]; |
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} |
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|
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public function to_rest_response() { |
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return rest_ensure_response( $this->to_array() ); |
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} |
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} |
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