Primer version funcional

2025-12-29 23:37:11 -06:00
commit 5289fd4133
294 changed files with 111418 additions and 0 deletions
--- a/core/Paginator.php
+++ b/core/Paginator.php
@@ -0,0 +1,81 @@
+<?php
+
+class Paginator {
+    private $page;
+    private $perPage;
+    private $perPageOptions;
+    private $total;
+
+    public function __construct($page = 1, $perPage = 20, $perPageOptions = [10, 20, 50, 100]) {
+        $this->page = max(1, (int)$page);
+        $this->perPage = in_array($perPage, $perPageOptions) ? (int)$perPage : 20;
+        $this->perPageOptions = $perPageOptions;
+    }
+
+    public static function fromRequest() {
+        $page = $_GET['page'] ?? $_POST['page'] ?? 1;
+        $perPage = $_GET['per_page'] ?? $_POST['per_page'] ?? 20;
+        return new self($page, $perPage);
+    }
+
+    public function getOffset() {
+        return ($this->page - 1) * $this->perPage;
+    }
+
+    public function getLimit() {
+        return $this->perPage;
+    }
+
+    public function getPage() {
+        return $this->page;
+    }
+
+    public function getPerPage() {
+        return $this->perPage;
+    }
+
+    public function setTotal($total) {
+        $this->total = $total;
+    }
+
+    public function getTotal() {
+        return $this->total;
+    }
+
+    public function getTotalPages() {
+        return (int)ceil($this->total / $this->perPage);
+    }
+
+    public function hasNextPage() {
+        return $this->page < $this->getTotalPages();
+    }
+
+    public function hasPrevPage() {
+        return $this->page > 1;
+    }
+
+    public function getNextPage() {
+        return $this->page + 1;
+    }
+
+    public function getPrevPage() {
+        return $this->page - 1;
+    }
+
+    public function toArray() {
+        return [
+            'page' => $this->page,
+            'per_page' => $this->perPage,
+            'total' => $this->total,
+            'total_pages' => $this->getTotalPages(),
+            'has_next' => $this->hasNextPage(),
+            'has_prev' => $this->hasPrevPage(),
+            'next_page' => $this->hasNextPage() ? $this->getNextPage() : null,
+            'prev_page' => $this->hasPrevPage() ? $this->getPrevPage() : null
+        ];
+    }
+
+    public function getLimitSql() {
+        return "LIMIT {$this->perPage} OFFSET {$this->getOffset()}";
+    }
+}