gnu-social/src/DependencyInjection/Compiler/SchemaDefDriver.php

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<?php
declare(strict_types = 1);
// {{{ License
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// GNU social is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with GNU social. If not, see <http://www.gnu.org/licenses/>.
// }}}
/**
* Compiler pass which triggers Symfony to tell Doctrine to
* use our `SchemaDef` metadata driver
*
* @package GNUsocial
* @category DB
*
* @author Hugo Sales <hugo@hsal.es>
* @copyright 2020-2021 Free Software Foundation, Inc http://www.fsf.org
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
namespace App\DependencyInjection\Compiler;
use Doctrine\ORM\Mapping\ClassMetadataInfo;
use Doctrine\Persistence\Mapping\ClassMetadata;
use Doctrine\Persistence\Mapping\Driver\StaticPHPDriver;
use Exception;
use Functional as F;
use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Reference;
/**
* Register a new ORM driver to allow use to use the old (and better) schemaDef format
*/
class SchemaDefDriver extends StaticPHPDriver implements CompilerPassInterface
{
/**
* Register `app.schemadef_driver` (this class instantiated with argument src/Entity) as a metadata driver
*
* @codeCoverageIgnore
*/
public function process(ContainerBuilder $container)
{
$container->findDefinition('doctrine.orm.default_metadata_driver')
->addMethodCall(
'addDriver',
[new Reference('app.schemadef_driver'), 'App\\Entity'],
);
}
/**
* V2 DB type => Doctrine type
*/
private const types = [
'varchar' => 'string',
'char' => 'string', // char is a fixed witdh varchar
'int' => 'integer',
'serial' => 'integer',
'tinyint' => 'smallint', // no portable tinyint
'bigint' => 'bigint',
'bool' => 'boolean',
'numeric' => 'decimal',
'text' => 'text',
'datetime' => 'datetime',
'timestamp' => 'datetime',
'phone_number' => 'phone_number',
// Unused in V2, but might start being used
'date' => 'date',
'time' => 'time',
'datetimez' => 'datetimez',
'object' => 'object',
'array' => 'array',
'simplearray' => 'simplearray',
'json_array' => 'json_array',
'float' => 'float',
'guid' => 'guid',
'blob' => 'blob',
];
/**
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* Fill in the database $metadata for $class_name
*
* @param class-string $class_name
* @param ClassMetadataInfo $metadata ClassMetadataInfo is the real type, but we need to override the method
*/
public function loadMetadataForClass($class_name, ClassMetadata $metadata): void
{
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$schema = $class_name::schemaDef();
$metadata->setPrimaryTable([
'name' => $schema['name'],
'indexes' => self::kv_to_name_col($schema['indexes'] ?? []),
'uniqueConstraints' => self::kv_to_name_col($schema['unique keys'] ?? []),
'options' => ['comment' => $schema['description'] ?? ''],
]);
foreach ($schema['fields'] as $name => $opts) {
$unique = null;
foreach ($schema['unique keys'] ?? [] as $key => $uniq_arr) {
if (\in_array($name, $uniq_arr)) {
$unique = $key;
break;
}
}
// @phpstan-ignore-next-line
if (false && $opts['foreign key'] ?? false) {
// @codeCoverageIgnoreStart
// TODO: Get foreign keys working
foreach (['target', 'multiplicity'] as $f) {
if (!isset($opts[$f])) {
throw new Exception("{$class_name}.{$name} doesn't have the required field `{$f}`");
}
}
// See Doctrine\ORM\Mapping::associationMappings
// TODO still need to map nullability, comment, fk name and such, but
// the interface doesn't seem to support it currently
[$target_entity, $target_field] = explode('.', $opts['target']);
$map = [
'fieldName' => $name,
'targetEntity' => $target_entity,
'joinColumns' => [[
'name' => $name,
'referencedColumnName' => $target_field,
]],
'id' => \in_array($name, $schema['primary key']),
'unique' => $unique,
];
switch ($opts['multiplicity']) {
case 'one to one':
$metadata->mapOneToOne($map);
break;
case 'many to one':
$metadata->mapManyToOne($map);
break;
case 'one to many':
$map['mappedBy'] = $target_field;
$metadata->mapOneToMany($map);
break;
case 'many to many':
$metadata->mapManyToMany($map);
break;
default:
throw new Exception("Invalid multiplicity specified: '${opts['multiplicity']}' in class: {$class_name}");
}
// @codeCoverageIgnoreEnd
} else {
// Convert old to new types
// For ints, prepend the size (smallint)
// The size field doesn't exist otherwise
$type = self::types[($opts['size'] ?? '') . $opts['type']];
$default = $opts['default'] ?? null;
$field = [
// boolean, optional
'id' => \in_array($name, $schema['primary key']),
// string
'fieldName' => $name,
// string
'type' => $type,
// string, optional
'unique' => $unique,
// String length, ignored if not a string
// int, optional
'length' => $opts['length'] ?? null,
// boolean, optional
'nullable' => !($opts['not null'] ?? false),
// Numeric precision and scale, ignored if not a number
// integer, optional
'precision' => $opts['precision'] ?? null,
// integer, optional
'scale' => $opts['scale'] ?? null,
'options' => [
'comment' => $opts['description'] ?? null,
'default' => $default,
'unsigned' => $opts['unsigned'] ?? null,
// bool, optional
'fixed' => $opts['type'] === 'char',
// 'collation' => string, unused
// 'check', unused
],
// 'columnDefinition', unused
];
// The optional feilds from earlier were populated with null, remove them
$field = array_filter($field, F\not('is_null'));
$field['options'] = array_filter($field['options'], F\not('is_null'));
$metadata->mapField($field);
if ($opts['type'] === 'serial') {
$metadata->setIdGeneratorType($metadata::GENERATOR_TYPE_AUTO);
}
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}
}
}
/**
* Override StaticPHPDriver's method,
* we care about classes that have the method `schemaDef`,
* instead of `loadMetadata`.
*/
public function isTransient($class_name): bool
{
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return !method_exists($class_name, 'schemaDef');
}
/**
* Convert [$key => $val] to ['name' => $key, 'columns' => $val]
*/
private static function kv_to_name_col(array $arr): array
{
$res = [];
foreach ($arr as $name => $cols) {
$res[] = ['name' => $name, 'columns' => $cols];
}
return $res;
}
}