fixed _buildDuplicate() method unable to handle array arguments

MysqliDb.php

@@ -112,17 +112,17 @@ class MysqliDb
      */
     protected $isSubQuery = false;
 
-	/**
-	 * Name of the auto increment column 
-	 *
-	 */
-    protected $lastInsertId = null;
+    /**
+     * Name of the auto increment column 
+     *
+     */
+    protected $_lastInsertId = null;
 
-	/**
-	 * Column names for update when using onDuplicate method
-	 *
-	 */
-    protected $updateColumns = null;
+    /**
+     * Column names for update when using onDuplicate method
+     *
+     */
+    protected $_updateColumns = null;
 
     /**
      * Return type: 'Array' to return results as array, 'Object' as object
@@ -247,6 +247,8 @@ class MysqliDb
         $this->returnType = 'Array';
         $this->_nestJoin = false;
         $this->_tableName = '';
+        $this->_lastInsertId = null;
+        $this->_updateColumns = null;
     }
 
     /**
@@ -562,17 +564,17 @@ class MysqliDb
         return $this;
     }
 
-	/** 
+    /** 
      * This function store update column's name and column name of the 
      * autoincrement column
      * 
      * @param Array Variable with values
      * @param String Variable value 
      */
-	public function onDuplicate($updateColumns, $lastInsertId = null)
+    public function onDuplicate($_updateColumns, $_lastInsertId = null)
     {
-        $this->lastInsertId = $lastInsertId;
-        $this->updateColumns = $updateColumns;
+        $this->_lastInsertId = $_lastInsertId;
+        $this->_updateColumns = $_updateColumns;
     }
 
     /**
@@ -804,28 +806,54 @@ class MysqliDb
         return true;
     }
 
-	/** 
+    /** 
      * Helper function to add variables into the query statement
      * 
      * @param Array Variable with values
      */
     protected function _buildDuplicate($tableData)
     {
-		if (is_array($this->updateColumns) && !empty($this->updateColumns)) {
+        if (is_array($this->_updateColumns) && !empty($this->_updateColumns)) {
             $this->_query .= " on duplicate key update ";
-            if ($this->lastInsertId) {
-                $this->_lastQuery .= $this->lastInsertId."=LAST_INSERT_ID(".$this->lastInsertId."),";
-                $this->lastInsertId = null;
+            if ($this->_lastInsertId) {
+                $this->_lastQuery .= $this->_lastInsertId."=LAST_INSERT_ID(".$this->_lastInsertId."),";
+                $this->_lastInsertId = null;
             }
-			
-            foreach ($this->updateColumns as $value) {
-                $this->_bindParam($tableData[$value]);
-                $this->_query .= "`" . $value . "` = ?, ";
+            
+            foreach ($this->_updateColumns as $column) {
+				$this->_query .= "`" . $column . "` = ";
+				
+				// Simple value
+				if (!is_array ($tableData[$column])) {
+					$this->_bindParam($tableData[$column]);
+					$this->_query .= '?, ';
+					continue;
+				}
+				
+				// Function value
+				$arr = $tableData[$column];
+				$key = key($arr);
+				$val = $arr[$key];
+				switch ($key) {
+                case '[I]':
+                    $this->_query .= $column . $val . ", ";
+                    break;
+                case '[F]':
+                    $this->_query .= $val[0] . ", ";
+                    if (!empty ($val[1]))
+                        $this->_bindParams ($val[1]);
+                    break;
+                case '[N]':
+                    if ($val == null)
+                        $this->_query .= "!" . $column . ", ";
+                    else
+                        $this->_query .= "!" . $val . ", ";
+                    break;
+                default:
+                    die ("Wrong operation");
+				}
             }
-			
             $this->_query = rtrim($this->_query, ', ');
-			$this->lastInsertId = null;
-			$this->updateColumns = null;
         }
     }
 

readme.md

@@ -123,6 +123,20 @@ else
     echo 'insert failed: ' . $db->getLastError();
 ```
 
+Insert with on duplicate key update
+```php
+$data = Array ("login" => "admin",
+               "firstName" => "John",
+               "lastName" => 'Doe',
+               "createdAt" => $db->now(),
+               "updatedAt" => $db->now(),
+);
+$updateColumns = Array ("updateAt");
+$lastInsertId = "id";
+$db->onDuplicate($updateColumns, $lastInsertId);
+$id = $db->insert ('users', $data);
+```
+
 ### Replace Query
 <a href='https://dev.mysql.com/doc/refman/5.0/en/replace.html'>Replace()</a> method implements same API as insert();
 

tests/mysqliDbTests.php

@@ -29,8 +29,10 @@ $tables = Array (
         'lastName' => 'char(10)',
         'password' => 'text not null',
         'createdAt' => 'datetime',
+        'updatedAt' => 'datetime',
         'expires' => 'datetime',
-        'loginCount' => 'int(10) default 0'
+        'loginCount' => 'int(10) default 0',
+		'unique key' => 'login (login)'
     ),
     'products' => Array (
         'customerId' => 'int(10) not null',
@@ -46,6 +48,7 @@ $data = Array (
                'lastName' => 'Doe',
                'password' => $db->func('SHA1(?)',Array ("secretpassword+salt")),
                'createdAt' => $db->now(),
+               'updatedAt' => $db->now(),
                'expires' => $db->now('+1Y'),
                'loginCount' => $db->inc()
         ),
@@ -55,6 +58,7 @@ $data = Array (
                'lastName' => NULL,
                'password' => $db->func('SHA1(?)',Array ("secretpassword2+salt")),
                'createdAt' => $db->now(),
+               'updatedAt' => $db->now(),
                'expires' => $db->now('+1Y'),
                'loginCount' => $db->inc(2)
         ),
@@ -65,6 +69,7 @@ $data = Array (
                'lastName' => 'D',
                'password' => $db->func('SHA1(?)',Array ("secretpassword2+salt")),
                'createdAt' => $db->now(),
+               'updatedAt' => $db->now(),
                'expires' => $db->now('+1Y'),
                'loginCount' => $db->inc(3)
         )
@@ -136,6 +141,7 @@ $badUser = Array ('login' => null,
                'lastName' => 'Doe',
                'password' => 'test',
                'createdAt' => $db->now(),
+               'updatedAt' => $db->now(),
                'expires' => $db->now('+1Y'),
                'loginCount' => $db->inc()
         );
@@ -170,6 +176,23 @@ if ($db->count != 3) {
     exit;
 }
 
+// insert with on duplicate key update
+$user = Array ('login' => 'user3',
+	   'active' => true,
+	   'customerId' => 11,
+	   'firstName' => 'Pete',
+	   'lastName' => 'D',
+	   'password' => $db->func('SHA1(?)',Array ("secretpassword2+salt")),
+	   'createdAt' => $db->now(),
+	   'updatedAt' => $db->now(),
+	   'expires' => $db->now('+1Y'),
+	   'loginCount' => $db->inc(3)
+	   );
+$updateColumns = Array ("updatedAt");
+$insertLastId = "id";
+$db->onDuplicate($updateColumns, "id");
+$db->insert("users", $user);
+
 // order by field
 $db->orderBy("login","asc", Array ("user3","user2","user1"));
 $login = $db->getValue ("users", "login");