code: public function createRelationTable($tableName): self
  	{
  		$table = $this->getTableData($tableName);
  
  		$name = $this->name . '_x_' . $table->name;
  
  		return $this->relationTables[] = $this->tableFactory->create($name, $this->prefix);
  	}
docs: Vytvori spojovou tabulku
  @param string|Table $tableName
  @return self