Fix MOTD

It now won't require there to be at least one entry in the motd table.
I also tidied up the motd class

src/pvv/side/motd.php

@@ -10,8 +10,21 @@ class MOTD{
 		$this->pdo = $pdo;
 	}
 
-	public function getMOTD(){
-		$query = 'SELECT * FROM motd LIMIT 1';
+	public function setMOTD($title, $content) {
+		if (is_array($content)) {
+			$content = implode("_", $content);
+		}
+		$query = 'INSERT INTO motd(title, content) VALUES (:title, :content);';
+		$statement = $this->pdo->prepare($query);
+
+		$statement->bindParam(':title', $title, PDO::PARAM_STR);
+		$statement->bindParam(':content', $content, PDO::PARAM_STR);
+
+		$statement->execute();
+	}
+	
+	public function getMOTD() {
+		$query = 'SELECT motd.title, motd.content FROM motd ORDER BY motd.id DESC LIMIT 1';
 		$statement = $this->pdo->prepare($query);
 		$statement->execute();
 
@@ -20,4 +33,17 @@ class MOTD{
 
 		return $motd;
 	}
-}
+	
+	public function getMOTD_history($limit = 5) {
+		$query = 'SELECT motd.title, motd.content FROM motd ORDER BY motd.id DESC LIMIT :limit';
+		$statement = $this->pdo->prepare($query);
+		$statement->bindParam(':limit', $limit, PDO::PARAM_STR);
+		$statement->execute();
+
+		$data = $statement->fetch();
+		$motd = array("title" => $data[0], "content" => explode("\n", $data[1]));
+
+		return $motd;
+	}
+	
+}