PHPORM-82 Support prefix for collection names

Author: GromNaN

src/Connection.php

@@ -66,6 +66,8 @@ public function __construct(array $config)
         // Select database
         $this->db = $this->connection->selectDatabase($this->getDefaultDatabaseName($dsn, $config));
 
+        $this->tablePrefix = $config['prefix'] ?? '';
+
         $this->useDefaultPostProcessor();
 
         $this->useDefaultSchemaGrammar();
@@ -84,7 +86,7 @@ public function collection($collection)
     {
         $query = new Query\Builder($this, $this->getQueryGrammar(), $this->getPostProcessor());
 
-        return $query->from($collection);
+        return $query->from($this->tablePrefix . $collection);
     }
 
     /**
@@ -109,7 +111,7 @@ public function table($table, $as = null)
      */
     public function getCollection($name)
     {
-        return new Collection($this, $this->db->selectCollection($name));
+        return new Collection($this, $this->db->selectCollection($this->tablePrefix . $name));
     }
 
     /** @inheritdoc */