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<?php
require_once NEWSLETTER_INCLUDES_DIR . '/controls.php';
class TNP_Pagination_Controller {
private $items_per_page;
private $total_items;
private $filters;
private $columns;
private $controls;
private $items;
private $current_page;
private $last_page;
private $table;
private $orderby_column;
public function __construct($table, $orderby_column, $filters = [], $items_per_page = 20, $columns = []) {
$this->table = $table;
$this->orderby_column = $orderby_column;
$this->items_per_page = $items_per_page;
$this->columns = $columns;
$this->filters = $filters;
$this->total_items = $this->get_total_items();
$this->controls = new NewsletterControls();
$this->current_page = $this->compute_current_page();
}
public function get_current_page() {
return $this->current_page;
}
private function compute_current_page() {
$current_page = !empty($this->controls->data['search_page']) ? (int) $this->controls->data['search_page'] : 1;
if ($this->controls->is_action('last')) {
$current_page = $this->get_last_page();
}
if ($this->controls->is_action('first') || $this->controls->is_action('search')) {
$current_page = 1;
}
if ($this->controls->is_action('next')) {
$current_page++;
}
if ($this->controls->is_action('prev')) {
$current_page--;
}
// Eventually fix the page
if ($current_page <= 0) {
$current_page = 1;
}
if ($current_page > $this->get_last_page()) {
$current_page = $this->get_last_page();
}
$this->controls->data['search_page'] = $current_page;
return $current_page;
}
public function get_last_page() {
if (is_null($this->last_page)) {
$this->last_page = (int) floor($this->total_items / $this->items_per_page) + ( $this->total_items % $this->items_per_page > 0 ? 1 : 0 );
}
return $this->last_page;
}
public function get_items() {
if (is_null($this->items)) {
if ($this->total_items > 0) {
global $wpdb;
$query = $wpdb->prepare("SELECT " . $this->get_columns_query() . " FROM " . $this->table . $this->get_where_clause() . " ORDER BY " . $this->orderby_column . " DESC LIMIT %d,%d",
( $this->current_page - 1 ) * $this->items_per_page, $this->items_per_page);
$this->items = $wpdb->get_results($query, OBJECT);
} else {
$this->items = [];
}
}
return $this->items;
}
private function get_columns_query() {
if (empty($this->columns)) {
return " * ";
} else {
return " " . implode(',', $this->columns) . " ";
}
}
public function get_total_items() {
if (is_null($this->total_items)) {
$this->total_items = Newsletter::instance()->store->get_count($this->table, $this->get_where_clause());
}
return $this->total_items;
}
private function get_where_clause() {
if (empty($this->filters)) {
return ' ';
}
$where = ' where ';
foreach ($this->filters as $column => $value) {
$where .= "$column=%s ";
}
global $wpdb;
$where = $wpdb->prepare($where, array_values($this->filters));
return $where;
}
public function display_paginator() {
?>
<div class="tnp-paginator">
<?php $this->controls->btn('first', '«', ['tertiary' => true]); ?>
<?php $this->controls->btn('prev', '‹', ['tertiary' => true]); ?>
<?php $this->controls->text('search_page', 3); ?>
/<?php echo (int) $this->last_page ?> <?php $this->controls->btn('go', esc_html__('Go', 'newsletter'), ['secondary' => true]); ?>
<?php $this->controls->btn('next', '›', ['tertiary' => true]); ?>
<?php $this->controls->btn('last', '»', ['tertiary' => true]); ?>
<?php echo (int) $this->get_total_items() ?> <?php esc_html_e('item(s) found', 'newsletter') ?>
</div>
<?php
}
}