src/Service/DB/Table.php
public function getForeignKeys()
    {
        if ($this->foreign_keys === null) {
            $this->foreign_keys = $this->listForeignKeys();
        }

        return $this->foreign_keys;
    }
public function getForeignKeys()
    {
        if ($this->foreign_keys === null) {
            $this->foreign_keys = $this->listForeignKeys();
        }

        return $this->foreign_keys;
    }
获得外键关联定义.

@see Table::listForeignKeys()

@return array