| 1 | <?php |
| 2 | |
| 3 | require_once __DIR__ . "/../lib/php/selectFirst.php"; |
| 4 | require_once __DIR__ . "/../lib/php/insert.php"; |
| 5 | require_once __DIR__ . "/TABLA_ROL.php"; |
| 6 | |
| 7 | class Bd |
| 8 | { |
| 9 | |
| 10 | private static ?PDO $pdo = null; |
| 11 | |
| 12 | static function pdo(): PDO |
| 13 | { |
| 14 | if (self::$pdo === null) { |
| 15 | |
| 16 | self::$pdo = new PDO( |
| 17 | |
| 18 | "sqlite:srvamuchos.db", |
| 19 | |
| 20 | null, |
| 21 | |
| 22 | null, |
| 23 | |
| 24 | [PDO::ATTR_PERSISTENT => false, PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION] |
| 25 | ); |
| 26 | |
| 27 | self::$pdo->exec( |
| 28 | 'CREATE TABLE IF NOT EXISTS USUARIO ( |
| 29 | USU_ID INTEGER, |
| 30 | USU_CUE TEXT NOT NULL, |
| 31 | CONSTRAINT USU_PK |
| 32 | PRIMARY KEY(USU_ID), |
| 33 | CONSTRAINT USU_CUE_UNQ |
| 34 | UNIQUE(USU_CUE), |
| 35 | CONSTRAINT USU_CUE_NV |
| 36 | CHECK(LENGTH(USU_CUE) > 0) |
| 37 | )' |
| 38 | ); |
| 39 | self::$pdo->exec( |
| 40 | 'CREATE TABLE IF NOT EXISTS ROL ( |
| 41 | ROL_ID TEXT NOT NULL, |
| 42 | ROL_DESCRIPCION TEXT NOT NULL, |
| 43 | CONSTRAINT ROL_PK |
| 44 | PRIMARY KEY(ROL_ID), |
| 45 | CONSTRAINT ROL_ID_NV |
| 46 | CHECK(LENGTH(ROL_ID) > 0), |
| 47 | CONSTRAINT ROL_DESCR_UNQ |
| 48 | UNIQUE(ROL_DESCRIPCION), |
| 49 | CONSTRAINT ROL_DESCR_NV |
| 50 | CHECK(LENGTH(ROL_DESCRIPCION) > 0) |
| 51 | )' |
| 52 | ); |
| 53 | self::$pdo->exec( |
| 54 | 'CREATE TABLE IF NOT EXISTS USU_ROL ( |
| 55 | USU_ID INTEGER NOT NULL, |
| 56 | ROL_ID TEXT NOT NULL, |
| 57 | CONSTRAINT USU_ROL_PK |
| 58 | PRIMARY KEY(USU_ID, ROL_ID), |
| 59 | CONSTRAINT USU_ROL_USU_FK |
| 60 | FOREIGN KEY (USU_ID) REFERENCES USUARIO(USU_ID), |
| 61 | CONSTRAINT USU_ROL_ROL_FK |
| 62 | FOREIGN KEY (ROL_ID) REFERENCES ROL(ROL_ID) |
| 63 | )' |
| 64 | ); |
| 65 | |
| 66 | if (selectFirst(self::$pdo, ROL, [ROL_ID => "Administrador"]) === false) { |
| 67 | insert( |
| 68 | pdo: self::$pdo, |
| 69 | into: ROL, |
| 70 | values: [ |
| 71 | ROL_ID => "Administrador", |
| 72 | ROL_DESCRIPCION => "Administra el sistema." |
| 73 | ] |
| 74 | ); |
| 75 | } |
| 76 | |
| 77 | if (selectFirst(self::$pdo, ROL, [ROL_ID => "Cliente"]) === false) { |
| 78 | insert( |
| 79 | pdo: self::$pdo, |
| 80 | into: ROL, |
| 81 | values: [ |
| 82 | ROL_ID => "Cliente", |
| 83 | ROL_DESCRIPCION => "Realiza compras." |
| 84 | ] |
| 85 | ); |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | return self::$pdo; |
| 90 | } |
| 91 | } |
| 92 | |