cast extended models when loading from database

src/Connection.php

@@ -18,6 +18,7 @@ class Connection
     private string $database;
     private ?string $port;
     private ?string $host;
+    private ?string $charset;
     private string $error;
 
     private function __construct($name, $config)
@@ -44,6 +45,7 @@ class Connection
             $this->password = isset($config[$key]["PASSWORD"]) ? $config[$key]["PASSWORD"] : null;
             $this->database = isset($config[$key]["DATABASE"]) ? $config[$key]["DATABASE"] : null;
             $this->port = isset($config[$key]["PORT"]) ? $config[$key]["PORT"] : null;
+            $this->charset = isset($config[$key]["CHARSET"]) ? $config[$key]["CHARSET"] : null;
         } catch (\Throwable $th) {
             $this->error = $th->getMessage();
         }
@@ -70,6 +72,7 @@ class Connection
             $this->password = isset($_ENV[$this->getKey("PASSWORD", $key)]) ? $_ENV[$this->getKey("PASSWORD", $key)] : null;
             $this->database = isset($_ENV[$this->getKey("DATABASE", $key)]) ? $_ENV[$this->getKey("DATABASE", $key)] : null;
             $this->port = isset($_ENV[$this->getKey("PORT", $key)]) ? $_ENV[$this->getKey("PORT", $key)] : null;
+            $this->charset = isset($_ENV[$this->getKey("CHARSET", $key)]) ? $_ENV[$this->getKey("CHARSET", $key)] : null;
         } catch (\Throwable $th) {
             $this->error = $th->getMessage();
         }
@@ -117,10 +120,19 @@ class Connection
         return $stmt;
     }
 
+    private function getMySQLOptions()
+    {
+        $ret = "";
+        if ($this->charset) {
+            $ret .= ";charset=" . $this->charset;
+        }
+        return $ret;
+    }
+
     private function getConnString()
     {
         $this->connstring = match ($this->type) {
-            "mysql"  => "mysql:host=" . $this->host . ":" . $this->port . ";dbname=" . $this->database,
+            "mysql"  => "mysql:host=" . $this->host . ":" . $this->port . ";dbname=" . $this->database . $this->getMySQLOptions() ,
             "sqlite" => "sqlite:" . $this->database,
         };
     }

src/Model.php

@@ -8,19 +8,33 @@ class Model implements JsonSerializable
 {
     protected mixed $values;
     protected array $updated;
-    protected string $table;
+    protected string $table = "";
     protected string $connection = "";
     protected string $pk;
     private bool $new;
+    private bool $ro;
 
-    public function __construct()
+    public function __construct($ro = false)
     {
         $this->new = true;
         $this->values = array();
         $this->updated = array();
         $this->pk = "id";
+        $this->ro = $ro;
+        $this->initTable();
+    }
+
+    private function initTable(): void
+    {
+        if (!$this->ro) {
+            if ($this->table == "") {
                 $this->table =  $this->getDefaultTableName();
             }
+        } else {
+            $this->table = "ReadOnlyModel";
+            $this->pk = "__idpk";
+        }
+    }
 
     public function getTable(): string
     {
@@ -70,7 +84,7 @@ class Model implements JsonSerializable
 
     public function find(mixed $key): mixed
     {
-        $qb = $this->newQueryBuilder();
+        $qb = $this->newQueryBuilder(get_class($this));
         $find = $qb->find($key);
         if ($find !== null) {
             $this->fillData($find->getValues());
@@ -82,7 +96,8 @@ class Model implements JsonSerializable
     public function save(): bool
     {
         $ret = false;
-        $qb = $this->newQueryBuilder();
+        if (!$this->ro) {
+            $qb = $this->newQueryBuilder("");
             if ($this->new) {
                 $query = $qb->getPreparedQuery($this->values);
                 $id = Connection::getInstance($this->connection)->insertQuery($query);
@@ -107,12 +122,13 @@ class Model implements JsonSerializable
                     }
                 }
             }
+        }
         return $ret;
     }
 
-    public function newQueryBuilder(): QueryBuilder
+    public function newQueryBuilder($className): QueryBuilder
     {
-        return new QueryBuilder($this->table, $this->pk, $this->connection);
+        return new QueryBuilder($this->table, $this->pk, $this->connection, $className);
     }
 
     public function __set($name, $value): void
@@ -132,10 +148,16 @@ class Model implements JsonSerializable
         }
     }
 
+    public static function getClassName()
+    {
+        return static::class;
+    }
+
     public static function q(): QueryBuilder
     {
+        $cls = self::getClassName();
         $ist = new static();
-        return $ist->newQueryBuilder();
+        return $ist->newQueryBuilder($cls);
     }
 
     public function __get($name): mixed

src/QueryBuilder.php

@@ -6,9 +6,11 @@ class QueryBuilder
 {
     protected array $columns;
     protected array $wheres;
+    protected array $orwheres;
     protected array $orders;
     protected array $groupby;
     protected string $table;
+    protected string $classname;
     protected string $connection;
     protected string $pk;
     protected ?int $take;
@@ -16,8 +18,12 @@ class QueryBuilder
     protected string $raw_query;
     protected bool $distinct;
 
-    public function __construct($table, $pk = "id", $connection = "")
+    public const MODE_AND = 0;
+    public const MODE_OR = 1;
+
+    public function __construct($table, $pk = "id", $connection = "", $classname = "")
     {
+        $this->classname = $classname;
         $this->table = $table;
         $this->pk = $pk;
         $this->connection = $connection;
@@ -28,6 +34,7 @@ class QueryBuilder
     {
         $this->columns = [];
         $this->wheres = [];
+        $this->orwheres = [];
         $this->orders = [];
         $this->groupby = [];
         $this->offset = null;
@@ -128,12 +135,28 @@ class QueryBuilder
         return $this;
     }
 
+    public function orWhere($condition, $operator, $value = null)
+    {
+        if ($value === null) {
+            $this->orwheres[] = new Expression($condition, "=", $operator);
+        } else {
+            $this->orwheres[] = new Expression($condition, $operator, $value);
+        }
+        return $this;
+    }
+
     public function whereRaw(string $raw)
     {
         $this->wheres[] = $raw;
         return $this;
     }
 
+    public function orWhereRaw(string $raw)
+    {
+        $this->orwheres[] = $raw;
+        return $this;
+    }
+
     public function find($id): mixed
     {
         $this->reset();
@@ -187,7 +210,12 @@ class QueryBuilder
     {
         $ret = array();
         foreach ($data as $row) {
+            if ($this->classname != "") {
+                $model = new $this->classname();
+            } else {
                 $model = new Model();
+            }
+
             $ret[] = $model->setPk($this->pk)->setTable($this->table)->fillData($row);
         }
         return new Collection($ret);
@@ -213,10 +241,16 @@ class QueryBuilder
         $query = "SELECT " . $distinct . " " . $columns . " FROM " . $this->table ;
 
         $where = $this->getWhere();
+        $Orwhere = $this->getWhere(QueryBuilder::MODE_OR);
+
         $this->fillData($ret);
 
+        if ($where != "" && $Orwhere != "") {
+            $Orwhere = " OR " . $Orwhere;
+        }
+
         if ($where != "") {
-            $query .= " WHERE " . $where;
+            $query .= " WHERE " . $where . $Orwhere;
         }
 
         $query .= $this->getClause("GROUP By", $this->groupby);
@@ -229,7 +263,7 @@ class QueryBuilder
 
     private function fillData(Query &$query): void
     {
-        foreach ($this->wheres as $expression) {
+        foreach (array_merge($this->wheres, $this->orwheres) as $expression) {
             if ($expression instanceof Expression) {
                 if ($expression->hasData()) {
                     $query->addData($expression->getValue());
@@ -238,10 +272,18 @@ class QueryBuilder
         }
     }
 
-    private function getWhere(): string
+    private function getWhere(int $mode = QueryBuilder::MODE_AND): string
     {
         $where = "";
-        foreach ($this->wheres as $expression) {
+        $collection = match ($mode) {
+            QueryBuilder::MODE_AND => $this->wheres,
+            QueryBuilder::MODE_OR => $this->orwheres,
+        };
+        $keyword = match ($mode) {
+            QueryBuilder::MODE_AND => " AND ",
+            QueryBuilder::MODE_OR => " OR ",
+        };
+        foreach ($collection as $expression) {
             $sw = "";
             if ($expression instanceof Expression) {
                 $sw = $expression->raw();
@@ -252,7 +294,7 @@ class QueryBuilder
                 }
             }
             if ($where != "" && $sw != "") {
-                $where .= " AND ";
+                $where .= " $keyword ";
             }
             $where .= $sw;
         }

tests/DbTest.php

@@ -98,6 +98,10 @@ test("querybuilder", function() {
     $qb->reset();
     $rows = $qb->whereNotNull("col1")->get();
     expect(count($rows))->toBe(2);    
+
+    $qb->reset();
+    $rows = $qb->where("id",1)->orWhere("id",2)->get();
+    expect(count($rows))->toBe(2);   
 });
 
 test("extending model",function()
@@ -112,6 +116,8 @@ test("extending model",function()
     $row = $qbs->find(1);
     expect($row->id)->toBe(1);
     expect($row->col1)->toBe("test");
+
+    expect($row)->toBeInstanceOf(Test::class);
 });
 
 test("order by", function(){