How can the Repository pattern be implemented to handle the retrieval and updating of data in a more modular and efficient way, especially in the context of managing continents, nations, and other related entities?

The Repository pattern can be implemented to handle the retrieval and updating of data in a more modular and efficient way by creating separate repository classes for each entity (e.g., ContinentRepository, NationRepository) that encapsulate the data access logic. These repository classes can abstract away the details of how data is retrieved and updated, allowing for easier maintenance and testing. 

// ContinentRepository.php
class ContinentRepository {
    private $db;

    public function __construct(PDO $db) {
        $this->db = $db;
    }

    public function getAllContinents() {
        // Retrieve all continents from the database
    }

    public function getContinentById($id) {
        // Retrieve a continent by its ID from the database
    }

    public function updateContinent($continent) {
        // Update a continent in the database
    }
}

// NationRepository.php
class NationRepository {
    private $db;

    public function __construct(PDO $db) {
        $this->db = $db;
    }

    public function getAllNations() {
        // Retrieve all nations from the database
    }

    public function getNationById($id) {
        // Retrieve a nation by its ID from the database
    }

    public function updateNation($nation) {
        // Update a nation in the database
    }
}

Keywords

Repository pattern data retrieval data updating modular efficient

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