support for FKs, indented with spaces

lib/Doctrine/Import/Reader/Db.php

@@ -76,15 +76,22 @@ class Doctrine_Import_Reader_Db extends Doctrine_Import_Reader
 
 	$db->set("name",$dbName);
 	$tableNames = $dataDict->listTables();
-	foreach($tableNames as $tableName){
-		$table = new Doctrine_Schema_Table();
-		$table->set("name",$tableName);
-		$tableColumns = $dataDict->listTableColumns($tableName);
-		foreach($tableColumns as $tableColumn){
-			$table->addColumn($tableColumn);
-		}
-		$db->addTable($table);
-	}
+    foreach($tableNames as $tableName){	
+        $table = new Doctrine_Schema_Table();
+        $table->set("name",$tableName);
+        $tableColumns = $dataDict->listTableColumns($tableName);
+        foreach($tableColumns as $tableColumn){
+            $table->addColumn($tableColumn);
+        }
+        $db->addTable($table);
+        if ($fks = $dataDict->listTableConstraints($tableName)){
+            foreach($fks as $fk){
+                $relation = new Doctrine_Schema_Relation();
+                $relation->setRelationBetween($fk['referencingColumn'],$fk['referencedTable'],$fk['referencedColumn']);
+                $table->setRelation($relation);
+            }
+        }
+    }
 
 	return $schema;
     }