refactor: fix phpstan errors in Config, Database, Query, MigrationRunner, and SQLite3\Table

system/Database/Config.php

@@ -26,7 +26,7 @@ class Config extends BaseConfig
      * Cache for instance of any connections that
      * have been requested as a "shared" instance.
      *
-     * @var array
+     * @var array<string, BaseConnection>
      */
     protected static $instances = [];
 
@@ -41,9 +41,9 @@ class Config extends BaseConfig
     /**
      * Returns the database connection
      *
-     * @param array|BaseConnection|non-empty-string|null $group     The name of the connection group to use,
-     *                                                              or an array of configuration settings.
-     * @param bool                                       $getShared Whether to return a shared instance of the connection.
+     * @param array<string, mixed>|BaseConnection|non-empty-string|null $group     The name of the connection group to use,
+     *                                                                             or an array of configuration settings.
+     * @param bool                                                      $getShared Whether to return a shared instance of the connection.
      *
      * @return BaseConnection
      */
@@ -90,6 +90,8 @@ public static function connect($group = null, bool $getShared = true)
 
     /**
      * Returns an array of all db connections currently made.
+     *
+     * @return array<string, BaseConnection>
      */
     public static function getConnections(): array
     {
@@ -100,7 +102,7 @@ public static function getConnections(): array
      * Loads and returns an instance of the Forge for the specified
      * database group, and loads the group if it hasn't been loaded yet.
      *
-     * @param array|ConnectionInterface|string|null $group
+     * @param array<string, mixed>|ConnectionInterface|string|null $group
      *
      * @return Forge
      */
@@ -114,7 +116,7 @@ public static function forge($group = null)
     /**
      * Returns a new instance of the Database Utilities class.
      *
-     * @param array|string|null $group
+     * @param array<string, mixed>|string|null $group
      *
      * @return BaseUtils
      */

system/Database/Database.php

@@ -31,13 +31,15 @@ class Database
      * Helps to keep track of all open connections for performance
      * monitoring, logging, etc.
      *
-     * @var array
+     * @var array<string, BaseConnection>
      */
     protected $connections = [];
 
     /**
      * Parses the connection binds and creates a Database Connection instance.
      *
+     * @param array<string, mixed> $params
+     *
      * @return BaseConnection
      *
      * @throws InvalidArgumentException
@@ -94,6 +96,10 @@ public function loadUtils(ConnectionInterface $db): BaseUtils
     /**
      * Parses universal DSN string
      *
+     * @param array<string, mixed> $params
+     *
+     * @return array<string, mixed>
+     *
      * @throws InvalidArgumentException
      */
     protected function parseDSN(array $params): array
@@ -132,9 +138,9 @@ protected function parseDSN(array $params): array
     /**
      * Creates a database object.
      *
-     * @param string                    $driver   Driver name. FQCN can be used.
-     * @param string                    $class    'Connection'|'Forge'|'Utils'
-     * @param array|ConnectionInterface $argument The constructor parameter or DB connection
+     * @param string                                   $driver   Driver name. FQCN can be used.
+     * @param string                                   $class    'Connection'|'Forge'|'Utils'
+     * @param array<string, mixed>|ConnectionInterface $argument The constructor parameter or DB connection
      *
      * @return BaseConnection|BaseUtils|Forge
      */

system/Database/MigrationRunner.php

@@ -90,7 +90,7 @@ class MigrationRunner
     /**
      * used to return messages for CLI.
      *
-     * @var array
+     * @var list<string>
      */
     protected $cliMessages = [];
 
@@ -139,7 +139,7 @@ class MigrationRunner
      * default DB group so that it creates the `migrations` table in the default
      * DB group. Therefore, passing $db is for testing purposes only.
      *
-     * @param array|ConnectionInterface|string|null $db DB group. For testing purposes only.
+     * @param array<string, mixed>|ConnectionInterface|string|null $db DB group. For testing purposes only.
      *
      * @throws ConfigException
      */
@@ -440,7 +440,7 @@ public function force(string $path, string $namespace, ?string $group = null)
     /**
      * Retrieves list of available migration scripts
      *
-     * @return array List of all located migrations by their UID
+     * @return array<string, stdClass> List of all located migrations by their UID
      */
     public function findMigrations(): array
     {
@@ -465,6 +465,8 @@ public function findMigrations(): array
 
     /**
      * Retrieves a list of available migration scripts for one namespace
+     *
+     * @return list<stdClass>
      */
     public function findNamespaceMigrations(string $namespace): array
     {
@@ -610,6 +612,8 @@ public function getObjectUid($object): string
 
     /**
      * Retrieves messages formatted for CLI output
+     *
+     * @return list<string>
      */
     public function getCliMessages(): array
     {
@@ -693,6 +697,8 @@ protected function removeHistory($history)
 
     /**
      * Grabs the full migration history from the database for a group
+     *
+     * @return list<stdClass>
      */
     public function getHistory(string $group = 'default'): array
     {
@@ -719,6 +725,8 @@ public function getHistory(string $group = 'default'): array
      * Returns the migration history for a single batch.
      *
      * @param string $order
+     *
+     * @return list<stdClass>
      */
     public function getBatchHistory(int $batch, $order = 'asc'): array
     {
@@ -734,6 +742,8 @@ public function getBatchHistory(int $batch, $order = 'asc'): array
 
     /**
      * Returns all the batches from the database history in order
+     *
+     * @return list<int>
      */
     public function getBatches(): array
     {

system/Database/Query.php

@@ -44,7 +44,7 @@ class Query implements QueryInterface, Stringable
     /**
      * The binds and their values used for binding.
      *
-     * @var array
+     * @var array<array-key, array{0: mixed, 1: bool}>
      */
     protected $binds = [];
 
@@ -129,6 +129,8 @@ public function setQuery(string $sql, mixed $binds = null, bool $setEscape = tru
     /**
      * Will store the variables to bind into the query later.
      *
+     * @param array<array-key, mixed> $binds
+     *
      * @return $this
      */
     public function setBinds(array $binds, bool $setEscape = true)
@@ -266,6 +268,9 @@ protected function compileBinds()
         }
     }
 
+    /**
+     * @param array<array-key, array{0: mixed, 1: bool}> $binds
+     */
     protected function matchNamedBinds(string $sql, array $binds): string
     {
         $replacers = [];
@@ -287,6 +292,9 @@ protected function matchNamedBinds(string $sql, array $binds): string
         return strtr($sql, $replacers);
     }
 
+    /**
+     * @param array<array-key, array{0: mixed, 1: bool}> $binds
+     */
     protected function matchSimpleBinds(string $sql, array $binds, int $bindCount, int $ml): string
     {
         if ($c = preg_match_all("/'[^']*'/", $sql, $matches) >= 1) {

system/Database/SQLite3/Table.php

@@ -35,14 +35,14 @@ class Table
     /**
      * All of the unique/primary keys in the table.
      *
-     * @var array
+     * @var array<string, array{fields: list<string>, type: string}>
      */
     protected $keys = [];
 
     /**
      * All of the foreign keys in the table.
      *
-     * @var array
+     * @var array<array-key, stdClass>
      */
     protected $foreignKeys = [];
 
@@ -230,6 +230,8 @@ public function dropForeignKey(string $foreignName)
 
     /**
      * Adds primary key
+     *
+     * @param array{fields?: list<string>} $fields
      */
     public function addPrimaryKey(array $fields): Table
     {
@@ -254,6 +256,8 @@ public function addPrimaryKey(array $fields): Table
     /**
      * Add a foreign key
      *
+     * @param list<array{field: list<string>, referenceTable: string, referenceField: list<string>, onDelete: string, onUpdate: string, fkName: string}> $foreignKeys
+     *
      * @return $this
      */
     public function addForeignKey(array $foreignKeys)
@@ -374,9 +378,9 @@ protected function copyData()
      * Converts fields retrieved from the database to
      * the format needed for creating fields with Forge.
      *
-     * @param array|bool $fields
+     * @param bool|list<stdClass> $fields
      *
-     * @return ($fields is array ? array : mixed)
+     * @return ($fields is array ? array<string, array<string, bool|int|string|null>> : mixed)
      */
     protected function formatFields($fields)
     {
@@ -452,7 +456,7 @@ private function isNumericType(string $type): bool
      *
      * @param array<string, stdClass> $keys
      *
-     * @return array<string, array{fields: string, type: string}>
+     * @return array<string, array{fields: list<string>, type: string}>
      */
     protected function formatKeys($keys)
     {

tests/system/Database/Live/SQLite3/AlterTableTest.php

@@ -14,6 +14,7 @@
 namespace CodeIgniter\Database\Live\SQLite3;
 
 use CodeIgniter\Database\Exceptions\DataException;
+use CodeIgniter\Database\SQLite3\Connection;
 use CodeIgniter\Database\SQLite3\Forge;
 use CodeIgniter\Database\SQLite3\Table;
 use CodeIgniter\Test\CIUnitTestCase;
@@ -54,8 +55,14 @@ protected function setUp(): void
             'database' => ':memory:',
             'DBDebug'  => true,
         ];
-        $this->db    = db_connect($config);
-        $this->forge = Database::forge($config);
+        $db = db_connect($config);
+        $this->assertInstanceOf(Connection::class, $db);
+        $this->db = $db;
+
+        $forge = Database::forge($config);
+        $this->assertInstanceOf(Forge::class, $forge);
+        $this->forge = $forge;
+
         $this->table = new Table($this->db, $this->forge);
 
         $this->dropTables();

tests/system/Database/Live/SQLite3/GetIndexDataTest.php

@@ -41,8 +41,11 @@ protected function setUp(): void
             'database' => 'database.db',
             'DBDebug'  => true,
         ];
-        $this->db    = db_connect($config, false);
-        $this->forge = Database::forge($config);
+        $this->db = db_connect($config, false);
+
+        $forge = Database::forge($config);
+        $this->assertInstanceOf(Forge::class, $forge);
+        $this->forge = $forge;
     }
 
     public function testGetIndexData(): void

tests/system/Database/Migrations/MigrationRunnerTest.php

@@ -14,7 +14,9 @@
 namespace CodeIgniter\Database\Migrations;
 
 use CodeIgniter\Database\BaseConnection;
+use CodeIgniter\Database\ConnectionInterface;
 use CodeIgniter\Database\MigrationRunner;
+use CodeIgniter\Database\SQLSRV\Connection as SQLSRVConnection;
 use CodeIgniter\Events\Events;
 use CodeIgniter\Exceptions\ConfigException;
 use CodeIgniter\Test\CIUnitTestCase;
@@ -121,6 +123,7 @@ public function testGetHistory(): void
         ];
 
         if ($this->db->DBDriver === 'SQLSRV') {
+            $this->assertInstanceOf(SQLSRVConnection::class, $this->db);
             $this->db->simpleQuery('SET IDENTITY_INSERT ' . $this->db->escapeIdentifiers($this->db->schema) . '.' . $this->db->prefixTable('migrations') . ' ON');
         }
 
@@ -138,6 +141,7 @@ public function testGetHistory(): void
         $this->assertSame($expected, $history);
 
         if ($this->db->DBDriver === 'SQLSRV') {
+            $this->assertInstanceOf(SQLSRVConnection::class, $this->db);
             $this->db->simpleQuery('SET IDENTITY_INSERT ' . $this->db->escapeIdentifiers($this->db->schema) . '.' . $this->db->prefixTable('migrations') . ' OFF');
             $db = $this->getPrivateProperty($runner, 'db');
             $db->table('migrations')->delete(['id' => 4]);
@@ -477,6 +481,9 @@ public function testMigrationUsesSameConnectionAsMigrationRunner(): void
         }
     }
 
+    /**
+     * @param array<string, mixed>|ConnectionInterface|string|null $db
+     */
     protected function resetTables($db = null): void
     {
         $forge = Database::forge($db);

utils/phpstan-baseline/assign.propertyType.neon

@@ -1,4 +1,4 @@
-# total 24 errors
+# total 22 errors
 
 parameters:
     ignoreErrors:
@@ -17,16 +17,6 @@ parameters:
             count: 1
             path: ../../tests/system/Commands/Utilities/Routes/FilterFinderTest.php
 
-        -
-            message: '#^Property CodeIgniter\\Database\\Live\\SQLite3\\AlterTableTest\:\:\$forge \(CodeIgniter\\Database\\SQLite3\\Forge\) does not accept CodeIgniter\\Database\\Forge\.$#'
-            count: 1
-            path: ../../tests/system/Database/Live/SQLite3/AlterTableTest.php
-
-        -
-            message: '#^Property CodeIgniter\\Database\\Live\\SQLite3\\GetIndexDataTest\:\:\$forge \(CodeIgniter\\Database\\SQLite3\\Forge\) does not accept CodeIgniter\\Database\\Forge\.$#'
-            count: 1
-            path: ../../tests/system/Database/Live/SQLite3/GetIndexDataTest.php
-
         -
             message: '#^Property CodeIgniter\\Filters\\CSRFTest\:\:\$response \(CodeIgniter\\HTTP\\Response\|null\) does not accept CodeIgniter\\HTTP\\ResponseInterface\.$#'
             count: 2

utils/phpstan-baseline/loader.neon

@@ -1,4 +1,4 @@
-# total 703 errors
+# total 670 errors
 
 includes:
     - argument.type.neon