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espocrm-base/application/Espo/ORM/Repository/RDBSelectBuilder.php
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Yuri Kuznetsov fdb24513b5 cs
2023-04-29 10:49:25 +03:00

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PHP

<?php
/************************************************************************
* This file is part of EspoCRM.
*
* EspoCRM - Open Source CRM application.
* Copyright (C) 2014-2023 Yurii Kuznietsov, Taras Machyshyn, Oleksii Avramenko
* Website: https://www.espocrm.com
*
* EspoCRM is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* EspoCRM 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with EspoCRM. If not, see http://www.gnu.org/licenses/.
*
* The interactive user interfaces in modified source and object code versions
* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU General Public License version 3.
*
* In accordance with Section 7(b) of the GNU General Public License version 3,
* these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
************************************************************************/
namespace Espo\ORM\Repository;
use Espo\ORM\Collection;
use Espo\ORM\EntityCollection;
use Espo\ORM\SthCollection;
use Espo\ORM\Entity;
use Espo\ORM\EntityManager;
use Espo\ORM\Query\Select;
use Espo\ORM\Query\SelectBuilder;
use Espo\ORM\Query\Part\WhereItem;
use Espo\ORM\Query\Part\Selection;
use Espo\ORM\Query\Part\Join;
use Espo\ORM\Mapper\Mapper;
use Espo\ORM\Query\Part\Expression;
use Espo\ORM\Query\Part\Order;
use Espo\ORM\Mapper\BaseMapper;
use RuntimeException;
/**
* Builds select parameters for an RDB repository. Contains 'find' methods.
*
* @template TEntity of Entity
*/
class RDBSelectBuilder
{
private SelectBuilder $builder;
/** @var RDBRepository<TEntity> */
private RDBRepository $repository;
private bool $returnSthCollection = false;
public function __construct(
private EntityManager $entityManager,
string $entityType,
?Select $query = null
) {
/** @var RDBRepository<TEntity> $repository */
$repository = $this->entityManager->getRepository($entityType);
$this->repository = $repository;
if ($query && $query->getFrom() !== $entityType) {
throw new RuntimeException("SelectBuilder: Passed query doesn't match the entity type.");
}
$this->builder = new SelectBuilder();
if ($query) {
$this->builder->clone($query);
}
if (!$query) {
$this->builder->from($entityType);
}
}
protected function getMapper(): Mapper
{
return $this->entityManager->getMapper();
}
/**
* @param ?array<string, mixed> $params @deprecated. Omit it.
* @return Collection<TEntity>
*/
public function find(?array $params = null): Collection
{
$query = $this->getMergedParams($params);
/** @var Collection<TEntity> $collection */
$collection = $this->getMapper()->select($query);
return $this->handleReturnCollection($collection);
}
/**
* @param ?array<string, mixed> $params @deprecated
* @return ?TEntity
*/
public function findOne(?array $params = null): ?Entity
{
$builder = $this;
if ($params !== null) { // @todo Remove.
$query = $this->getMergedParams($params);
$builder = $this->repository->clone($query);
}
$collection = $builder->sth()->limit(0, 1)->find();
foreach ($collection as $entity) {
return $entity;
}
return null;
}
/**
* Get a number of records.
*
* @param ?array<string, mixed> $params @deprecated
*/
public function count(?array $params = null): int
{
if ($params) { // @todo Remove.
$query = $this->getMergedParams($params);
return $this->getMapper()->count($query);
}
$query = $this->builder->build();
return $this->getMapper()->count($query);
}
/**
* Get a max value.
*
* @return int|float
*/
public function max(string $attribute)
{
$query = $this->builder->build();
$mapper = $this->getMapper();
if (!$mapper instanceof BaseMapper) {
throw new RuntimeException("Not supported 'max'.");
}
return $mapper->max($query, $attribute);
}
/**
* Get a min value.
*
* @return int|float
*/
public function min(string $attribute)
{
$query = $this->builder->build();
$mapper = $this->getMapper();
if (!$mapper instanceof BaseMapper) {
throw new RuntimeException("Not supported 'min'.");
}
return $mapper->min($query, $attribute);
}
/**
* Get a sum value.
*
* @return int|float
*/
public function sum(string $attribute)
{
$query = $this->builder->build();
$mapper = $this->getMapper();
if (!$mapper instanceof BaseMapper) {
throw new RuntimeException("Not supported 'sum'.");
}
return $mapper->sum($query, $attribute);
}
/**
* Add JOIN.
*
* @param Join|string $target
* A relation name or table. A relation name should be in camelCase, a table in CamelCase.
* @param string|null $alias An alias.
* @param WhereItem|array<mixed, mixed>|null $conditions Join conditions.
* @return RDBSelectBuilder<TEntity>
*/
public function join($target, ?string $alias = null, $conditions = null): self
{
$this->builder->join($target, $alias, $conditions);
return $this;
}
/**
* Add LEFT JOIN.
*
* @param Join|string $target
* A relation name or table. A relation name should be in camelCase, a table in CamelCase.
* @param string|null $alias An alias.
* @param WhereItem|array<string|int, mixed>|null $conditions Join conditions.
*
* @return RDBSelectBuilder<TEntity>
*/
public function leftJoin($target, ?string $alias = null, $conditions = null): self
{
$this->builder->leftJoin($target, $alias, $conditions);
return $this;
}
/**
* Set DISTINCT parameter.
*
* @return RDBSelectBuilder<TEntity>
*/
public function distinct(): self
{
$this->builder->distinct();
return $this;
}
/**
* Lock selected rows. To be used within a transaction.
*
* @return RDBSelectBuilder<TEntity>
*/
public function forUpdate(): self
{
$this->builder->forUpdate();
return $this;
}
/**
* Set to return STH collection. Recommended for fetching large number of records.
*
* @todo Remove.
* @return RDBSelectBuilder<TEntity>
*/
public function sth(): self
{
$this->returnSthCollection = true;
return $this;
}
/**
* Add a WHERE clause.
*
* Usage options:
* * `where(WhereItem $clause)`
* * `where(array $clause)`
* * `where(string $key, string $value)`
*
* @param WhereItem|array<mixed, mixed>|string $clause A key or where clause.
* @param mixed[]|scalar|null $value A value. Should be omitted if the first argument is not string.
* @return RDBSelectBuilder<TEntity>
*/
public function where($clause = [], $value = null): self
{
$this->builder->where($clause, $value);
return $this;
}
/**
* Add a HAVING clause.
*
* Usage options:
* * `having(WhereItem $clause)`
* * `having(array $clause)`
* * `having(string $key, string $value)`
*
* @param WhereItem|array<mixed, mixed>|string $clause A key or where clause.
* @param mixed[]|scalar|null $value A value. Should be omitted if the first argument is not string.
* @return RDBSelectBuilder<TEntity>
*/
public function having($clause = [], $value = null): self
{
$this->builder->having($clause, $value);
return $this;
}
/**
* Apply ORDER. Passing an array will override previously set items.
* Passing non-array will append an item,
*
* Usage options:
* * `order(OrderExpression $expression)
* * `order([$expr1, $expr2, ...])
* * `order(string $expression, string $direction)
*
* @param Order|Order[]|Expression|string|array<int, string[]>|string[] $orderBy
* An attribute to order by or an array or order items.
* Passing an array will reset a previously set order.
* @param (Order::ASC|Order::DESC)|bool|null $direction A direction.
* @return RDBSelectBuilder<TEntity>
*/
public function order($orderBy = 'id', $direction = null): self
{
$this->builder->order($orderBy, $direction);
return $this;
}
/**
* Apply OFFSET and LIMIT.
*
* @return RDBSelectBuilder<TEntity>
*/
public function limit(?int $offset = null, ?int $limit = null): self
{
$this->builder->limit($offset, $limit);
return $this;
}
/**
* Specify SELECT. Columns and expressions to be selected. If not called, then
* all entity attributes will be selected. Passing an array will reset
* previously set items. Passing a string|Expression|SelectExpression will append the item.
*
* Usage options:
* * `select([$expr1, $expr2, ...])`
* * `select([[$expr1, $alias1], [$expr2, $alias2], ...])`
* * `select([$selectItem1, $selectItem2, ...])`
* * `select(string|Expression $expression)`
* * `select(string|Expression $expression, string $alias)`
* * `select(SelectExpression $selectItem)`
*
* @param Selection|Selection[]|Expression|Expression[]|string[]|string|array<int, string[]|string> $select
* An array of expressions or one expression.
* @param string|null $alias An alias. Actual if the first parameter is a string.
* @return RDBSelectBuilder<TEntity>
*/
public function select($select, ?string $alias = null): self
{
$this->builder->select($select, $alias);
return $this;
}
/**
* Specify GROUP BY.
* Passing an array will reset previously set items.
* Passing a string|Expression will append an item.
*
* Usage options:
* * `groupBy(Expression|string $expression)`
* * `groupBy([$expr1, $expr2, ...])`
*
* @param Expression|Expression[]|string|string[] $groupBy
* @return RDBSelectBuilder<TEntity>
*/
public function group($groupBy): self
{
$this->builder->group($groupBy);
return $this;
}
/**
* @deprecated Use `group` method.
*
* @return RDBSelectBuilder<TEntity>
* @param Expression|Expression[]|string|string[] $groupBy
*/
public function groupBy($groupBy): self
{
return $this->group($groupBy);
}
/**
* @param Collection<TEntity> $collection
* @return Collection<TEntity>|SthCollection<TEntity>
*/
protected function handleReturnCollection(Collection $collection): Collection
{
if (!$collection instanceof SthCollection) {
return $collection;
}
if ($this->returnSthCollection) {
return $collection;
}
/**
* @var EntityCollection<TEntity>
*/
return $this->entityManager->getCollectionFactory()->createFromSthCollection($collection);
}
/**
* For backward compatibility.
* @deprecated As of v6.0.
* @todo Remove.
* @param array<string, mixed> $params
*/
protected function getMergedParams(?array $params = null): Select
{
if ($params === null || empty($params)) {
return $this->builder->build();
}
$builtParams = $this->builder->build()->getRaw();
$whereClause = $builtParams['whereClause'] ?? [];
$havingClause = $builtParams['havingClause'] ?? [];
$joins = $builtParams['joins'] ?? [];
$leftJoins = $builtParams['leftJoins'] ?? [];
if (!empty($params['whereClause'])) {
unset($builtParams['whereClause']);
if (count($whereClause)) {
$params['whereClause'][] = $whereClause;
}
}
if (!empty($params['havingClause'])) {
unset($builtParams['havingClause']);
if (count($havingClause)) {
$params['havingClause'][] = $havingClause;
}
}
if (empty($params['whereClause'])) {
unset($params['whereClause']);
}
if (empty($params['havingClause'])) {
unset($params['havingClause']);
}
if (!empty($params['leftJoins']) && !empty($leftJoins)) {
foreach ($leftJoins as $j) {
$params['leftJoins'][] = $j;
}
}
if (!empty($params['joins']) && !empty($joins)) {
foreach ($joins as $j) {
$params['joins'][] = $j;
}
}
$params = array_replace_recursive($builtParams, $params);
return Select::fromRaw($params);
}
}