58 lines
1.5 KiB
PHP
58 lines
1.5 KiB
PHP
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<?php
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namespace Nest\Database;
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use Nest\Application;
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use Nest\Database\Configuration\DatabasesConfiguration;
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use Nest\Database\Exceptions\Configuration\MissingRequiredConfigurationValueException;
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use Nest\Database\Exceptions\UnknownDatabaseException;
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/**
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* Databases manager.
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*/
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class Databases
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{
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/**
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* Loaded databases.
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* @var array<string, Database>
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*/
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private array $databases;
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/**
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* @param Application $application Application of the databases.
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* @param DatabasesConfiguration $configuration Configuration of the databases.
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* @throws MissingRequiredConfigurationValueException
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*/
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public function __construct(protected Application $application, protected DatabasesConfiguration $configuration)
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{
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$this->load();
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}
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/**
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* Load databases from their factories.
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* @return void
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* @throws MissingRequiredConfigurationValueException
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*/
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public function load(): void
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{
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foreach ($this->configuration->getFactories() as $identifier => $databaseFactory)
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{ // Load all databases from their factories.
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$this->databases[$identifier] = $databaseFactory->make();
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}
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}
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/**
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* @param string $identifier Database identifier.
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* @return Database Database corresponding to the given identifier.
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* @throws UnknownDatabaseException
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*/
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public function db(string $identifier): Database
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{
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if (empty($this->databases[$identifier]))
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// Cannot find a database with this identifier, throwing an exception.
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throw new UnknownDatabaseException($identifier);
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return $this->databases[$identifier]; // Return loaded database.
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}
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}
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