具有分頁功能的getList

htdocs/lib/Database/DbMessage.php

@@ -2,6 +2,8 @@
 
 namespace MessageBoard\Database;
 
+use PDO;
+
 require_once FOLDER_ROOT.'/lib/Database/Database.php';
 
 class DbMessage extends Database 
@@ -10,21 +12,44 @@ class DbMessage extends Database
     /**
      * 取得列表
      *
-     * @param integer $limit 第幾筆開始
+     * @param integer $page 第幾筆開始
      * @param integer $count 此查詢要列出幾筆
-     * @return void
+     * @return array
      */
-    public function getList(int $limit=null, int $count=null)
+    public function getList(int $page=null, int $count=null)
     {
-        $sqlString = "SELECT * FROM `".$this->table('message')."`";
+        $sqlString = "SELECT id,title,content,updated_at,created_at FROM `".$this->table('message')."`";
+        
+        // 設定分頁功能
+        if(!empty($page) && !empty($count)) {
+            $sqlString .= ' LIMIT :offset ,:length';
+            $query = $this->connDB->prepare($sqlString);
+            
+            $offset = ($page-1) * $count;
+            $query->bindParam(":offset", $offset, PDO::PARAM_INT);
+            $query->bindParam(":length", $count, PDO::PARAM_INT);
+            $query->execute();
+        }
+        else {
             $query = $this->connDB->prepare($sqlString);
             $query->execute();
+        }
 
         $queryResultAll = $query->fetchAll();
-
         return $queryResultAll;
     }
 
+    /**
+     * 取得所有資料的筆數
+     *
+     * @return int
+     */
+    public function getCount()
+    {
+        $sqlString = "SELECT count(*) FROM `".$this->table('message')."`";
+        return (int)($this->connDB->query($sqlString))->fetch()[0];
+    }
+
     /**
      * 取得單筆資料
      *
@@ -33,7 +58,7 @@ class DbMessage extends Database
      */
     public function getDataByid($id)
     {
-        $sqlString = "SELECT * FROM `".$this->table('message')."` WHERE id = :id";
+        $sqlString = "SELECT id,title,content,updated_at,created_at FROM `".$this->table('message')."` WHERE id = :id";
 
         $query = $this->connDB->prepare($sqlString);
         $query->bindParam(":id", $id);
@@ -83,6 +108,12 @@ class DbMessage extends Database
         return $query->rowCount();
     }
 
+    /**
+     * 移除
+     *
+     * @param int $id 編號
+     * @return int 是否有成功
+     */
     public function delete($id)
     {
         $sqlString = "DELETE FROM `".$this->table('message')."` WHERE id= :id";