X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=include%2Fdba.php;h=c7b598f2d68e09ed2f3a9ead81d25d23f00d7265;hb=fd3cf1cd02b57e9796e5537dbee468d1c8048a48;hp=97f6c8795645492aeda5f47cd5707dc0b325545a;hpb=c0aac548274d463c611a9c0317fa6ec7d205a30e;p=friendica.git

diff --git a/include/dba.php b/include/dba.php
index 97f6c87956..c7b598f2d6 100644
--- a/include/dba.php
+++ b/include/dba.php
@@ -91,6 +91,40 @@ class dba {
 		return $this->db;
 	}
 
+	/**
+	 * @brief Returns the MySQL server version string
+	 * 
+	 * This function discriminate between the deprecated mysql API and the current
+	 * object-oriented mysqli API. Example of returned string: 5.5.46-0+deb8u1
+	 *
+	 * @return string
+	 */
+	public function server_info() {
+		if ($this->mysqli) {
+			$return = $this->db->server_info;
+		} else {
+			$return = mysql_get_server_info($this->db);
+		}
+		return $return;
+	}
+
+	/**
+	 * @brief Returns the number of rows
+	 *
+	 * @return string
+	 */
+	public function num_rows() {
+		if (!$this->result)
+			return 0;
+
+		if ($this->mysqli) {
+			$return = $this->result->num_rows;
+		} else {
+			$return = mysql_num_rows($this->result);
+		}
+		return $return;
+	}
+
 	public function q($sql, $onlyquery = false) {
 		global $a;
 
@@ -109,6 +143,8 @@ class dba {
 
 		$stamp1 = microtime(true);
 
+		$sql = "/*".$a->callstack()." */ ".$sql;
+
 		if($this->mysqli)
 			$result = @$this->db->query($sql);
 		else
@@ -326,6 +362,42 @@ function q($sql) {
 
 }}
 
+/**
+ * @brief Performs a query with "dirty reads"
+ *
+ * By doing dirty reads (reading uncommitted data) no locks are performed
+ * This function can be used to fetch data that doesn't need to be reliable.
+ *
+ * @param $args Query parameters (1 to N parameters of different types)
+ * @return array Query array
+ */
+function qu($sql) {
+
+	global $db;
+	$args = func_get_args();
+	unset($args[0]);
+
+	if($db && $db->connected) {
+		$stmt = @vsprintf($sql,$args); // Disabled warnings
+		if($stmt === false)
+			logger('dba: vsprintf error: ' . print_r(debug_backtrace(),true), LOGGER_DEBUG);
+		$db->q("SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;");
+		$retval = $db->q($stmt);
+		$db->q("COMMIT;");
+		return $retval;
+	}
+
+	/**
+	 *
+	 * This will happen occasionally trying to store the
+	 * session data after abnormal program termination
+	 *
+	 */
+	logger('dba: no database: ' . print_r($args,true));
+	return false;
+
+}
+
 /**
  *
  * Raw db query, no arguments