95 lines
2.6 KiB
PHP
95 lines
2.6 KiB
PHP
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<?php
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/**
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; under version 2
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* of the License (non-upgradable).
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright (c) 2020 (original work) Open Assessment Technologies SA (under the project TAO-PRODUCT);
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*
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* @license GPLv2
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*/
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namespace oat\generis\persistence\sql;
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use Doctrine\DBAL\Schema\Schema;
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use \IteratorAggregate;
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use ArrayIterator;
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use \common_exception_InconsistentData;
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/**
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* A collection of multiple schemas, in order to accomodate for the possibility
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* of multiple RDS databases with different schemas
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*/
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class SchemaCollection implements IteratorAggregate
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{
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/**
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* Schemas as they were originally added, prior to modifications
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* @var Schema[]
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*/
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private $originals;
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/**
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* Schemas per database, might have been modified
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* @var Schema[]
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*/
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private $schemas;
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/**
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* Add a schema to the collection
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* @param string $id
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* @param Schema $schema
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*/
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public function addSchema($id, Schema $schema) : void
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{
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$this->originals[$id] = clone $schema;
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$this->schemas[$id] = $schema;
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}
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/**
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* Get a schema as it was when it was added
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* @param string $id
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* @throws common_exception_InconsistentData
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*/
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public function getOriginalSchema($id) : Schema
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{
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if (!isset($this->originals[$id])) {
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throw new common_exception_InconsistentData('Expected original schema '.$id.' not found');
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}
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return $this->originals[$id];
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}
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/**
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* Get a schema in its current form, might have been changed
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* @param string $id
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* @throws common_exception_InconsistentData
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* @return Schema
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*/
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public function getSchema($id) : Schema
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{
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if (!isset($this->schemas[$id])) {
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throw new common_exception_InconsistentData('Expected schema '.$id.' not found');
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}
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return $this->schemas[$id];
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}
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/**
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* {@inheritDoc}
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* @see IteratorAggregate::getIterator()
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*/
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public function getIterator()
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{
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return new ArrayIterator($this->schemas);
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}
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}
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