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<?php
/**
* This file is part of the Dibi, smart database abstraction layer (https://dibiphp.com)
* Copyright (c) 2005 David Grudl (https://davidgrudl.com)
*/
declare(strict_types=1);
namespace Dibi;
/**
* Provides an interface between a dataset and data-aware components.
*/
interface IDataSource extends \Countable, \IteratorAggregate
{
//function \IteratorAggregate::getIterator();
//function \Countable::count();
}
/**
* Driver interface.
*/
interface Driver
{
/**
* Disconnects from a database.
* @throws Exception
*/
function disconnect(): void;
/**
* Internal: Executes the SQL query.
* @throws DriverException
*/
function query(string $sql): ?ResultDriver;
/**
* Gets the number of affected rows by the last INSERT, UPDATE or DELETE query.
*/
function getAffectedRows(): ?int;
/**
* Retrieves the ID generated for an AUTO_INCREMENT column by the previous INSERT query.
*/
function getInsertId(?string $sequence): ?int;
/**
* Begins a transaction (if supported).
* @throws DriverException
*/
function begin(?string $savepoint = null): void;
/**
* Commits statements in a transaction.
* @throws DriverException
*/
function commit(?string $savepoint = null): void;
/**
* Rollback changes in a transaction.
* @throws DriverException
*/
function rollback(?string $savepoint = null): void;
/**
* Returns the connection resource.
* @return mixed
*/
function getResource();
/**
* Returns the connection reflector.
*/
function getReflector(): Reflector;
/**
* Encodes data for use in a SQL statement.
*/
function escapeText(string $value): string;
function escapeBinary(string $value): string;
function escapeIdentifier(string $value): string;
function escapeBool(bool $value): string;
function escapeDate(\DateTimeInterface $value): string;
function escapeDateTime(\DateTimeInterface $value): string;
function escapeDateInterval(\DateInterval $value): string;
/**
* Encodes string for use in a LIKE statement.
*/
function escapeLike(string $value, int $pos): string;
/**
* Injects LIMIT/OFFSET to the SQL query.
*/
function applyLimit(string &$sql, ?int $limit, ?int $offset): void;
}
/**
* Result set driver interface.
*/
interface ResultDriver
{
/**
* Returns the number of rows in a result set.
*/
function getRowCount(): int;
/**
* Moves cursor position without fetching row.
* @return bool true on success, false if unable to seek to specified record
* @throws Exception
*/
function seek(int $row): bool;
/**
* Fetches the row at current position and moves the internal cursor to the next position.
* @param bool $type true for associative array, false for numeric
* @internal
*/
function fetch(bool $type): ?array;
/**
* Frees the resources allocated for this result set.
*/
function free(): void;
/**
* Returns metadata for all columns in a result set.
* @return array of {name, nativetype [, table, fullname, (int) size, (bool) nullable, (mixed) default, (bool) autoincrement, (array) vendor ]}
*/
function getResultColumns(): array;
/**
* Returns the result set resource.
* @return mixed
*/
function getResultResource();
/**
* Decodes data from result set.
*/
function unescapeBinary(string $value): string;
}
/**
* Reflection driver.
*/
interface Reflector
{
/**
* Returns list of tables.
* @return array of {name [, (bool) view ]}
*/
function getTables(): array;
/**
* Returns metadata for all columns in a table.
* @return array of {name, nativetype [, table, fullname, (int) size, (bool) nullable, (mixed) default, (bool) autoincrement, (array) vendor ]}
*/
function getColumns(string $table): array;
/**
* Returns metadata for all indexes in a table.
* @return array of {name, (array of names) columns [, (bool) unique, (bool) primary ]}
*/
function getIndexes(string $table): array;
/**
* Returns metadata for all foreign keys in a table.
*/
function getForeignKeys(string $table): array;
}
/**
* Dibi connection.
*/
interface IConnection
{
/**
* Connects to a database.
*/
function connect(): void;
/**
* Disconnects from a database.
*/
function disconnect(): void;
/**
* Returns true when connection was established.
*/
function isConnected(): bool;
/**
* Returns the driver and connects to a database in lazy mode.
*/
function getDriver(): Driver;
/**
* Generates (translates) and executes SQL query.
* @throws Exception
*/
function query(...$args): Result;
/**
* Gets the number of affected rows by the last INSERT, UPDATE or DELETE query.
* @throws Exception
*/
function getAffectedRows(): int;
/**
* Retrieves the ID generated for an AUTO_INCREMENT column by the previous INSERT query.
* @throws Exception
*/
function getInsertId(?string $sequence = null): int;
/**
* Begins a transaction (if supported).
*/
function begin(?string $savepoint = null): void;
/**
* Commits statements in a transaction.
*/
function commit(?string $savepoint = null): void;
/**
* Rollback changes in a transaction.
*/
function rollback(?string $savepoint = null): void;
}
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