Merge pull request #12 from douglas-88/dev

Class Pagination

app/Controller/UserController.php

@@ -28,7 +28,7 @@ public function index(){
 
         $this->view("home",
             [
-                "users" => $this->users->select()->get(),
+                "users" => $this->users->select()->paginate(2)->get(),
                 "title" => "Listando Usuários"
             ]
         );

app/Model/User.php

@@ -6,5 +6,5 @@
 
 class User extends Model
 {
-    protected $table = "user";
+    protected $table = "users";
 }

app/traits/Links.php

@@ -0,0 +1,24 @@
+<?php
+
+
+namespace App\traits;
+
+
+trait Links
+{
+   protected $maxLinks;
+
+   private function previous(){
+       if($this->page > 1){
+
+       }
+   }
+
+   private function next(){
+
+   }
+
+   public function links(){
+
+   }
+}

app/traits/Read.php

@@ -3,13 +3,13 @@
 
 namespace App\traits;
 
-
-
 use App\Model\User;
+use Core\Paginate;
+
 
 trait Read
 {
-
+    use Links;
     /**
      * Método responsável por
      * @param string $fields
@@ -30,6 +30,16 @@ public function bindAndExecute():\PDOStatement{
         return $select;
     }
 
+    /**
+     * Método responsável por Obter a quantidade de registros para a paginação.
+     * @return Int
+     */
+    public function count():int {
+        $select = $this->connection->prepare($this->sql);
+        $select->execute($this->binds);
+        return $select->rowCount();
+    }
+
     /**
      * Método responsável por obter apenas o 1º Registro encontrado.
      * @return object
@@ -83,4 +93,14 @@ public function where():User{
 
         return $this;
     }
+
+    public function paginate($perPage){
+
+       $this->paginate = new Paginate();
+       $this->paginate->getRegisters($this->count());
+       $this->paginate->paginate($perPage);
+       $this->sql .= $this->paginate->sqlPaginate();
+
+       return $this;
+    }
 }

src/Model.php

@@ -18,6 +18,7 @@ class Model extends Connection
     protected $value;
     protected $sql;
     protected $binds;
+    protected $paginate;
 
     use Create,Read,Update,Delete;
 

src/Paginate.php

@@ -0,0 +1,45 @@
+<?php
+
+
+namespace Core;
+
+
+class Paginate
+{
+    private $page;
+    private $perPage;
+    private $offSet;
+    private $pages;
+    private $registers;
+
+    private function current(){
+        $this->page = filter_input(INPUT_GET,"page",FILTER_SANITIZE_NUMBER_INT) ?? 1;
+    }
+
+    private function perPage($perPage){
+        $this->perPage = $perPage ?? 30;
+    }
+
+    private function offSet(){
+       $this->offSet = ($this->page * $this->perPage) - $this->perPage;
+    }
+
+    private function pages(){
+        $this->pages = ceil($this->registers/$this->perPage);
+    }
+
+    public function getRegisters($registers){
+       $this->registers = $registers;
+    }
+
+    public function sqlPaginate(){
+        return " LIMIT {$this->perPage} OFFSET {$this->offSet} ";
+    }
+
+    public function paginate($perPage){
+        $this->current();
+        $this->perPage($perPage);
+        $this->offSet();
+        $this->pages();
+    }
+}