Row, ActiveRow: shows suggestions for undeclared columns

composer.json

@@ -17,7 +17,7 @@
 		"php": ">=5.6.0",
 		"ext-pdo": "*",
 		"nette/caching": "~2.2",
-		"nette/utils": "~2.2"
+		"nette/utils": "~2.4"
 	},
 	"require-dev": {
 		"nette/tester": "~1.3",

src/Database/Row.php

@@ -18,7 +18,8 @@ class Row extends Nette\Utils\ArrayHash implements IRow
 
 	public function __get($key)
 	{
-		throw new Nette\MemberAccessException("Cannot read an undeclared column '$key'.");
+		$hint = Nette\Utils\ObjectMixin::getSuggestion(array_keys((array) $this), $key);
+		throw new Nette\MemberAccessException("Cannot read an undeclared column '$key'" . ($hint ? ", did you mean '$hint'?" : '.'));
 	}
 
 

src/Database/Table/ActiveRow.php

@@ -288,7 +288,8 @@ public function &__get($key)
 		}
 
 		$this->removeAccessColumn($key);
-		throw new Nette\MemberAccessException("Cannot read an undeclared column '$key'.");
+		$hint = Nette\Utils\ObjectMixin::getSuggestion(array_keys($this->data), $key);
+		throw new Nette\MemberAccessException("Cannot read an undeclared column '$key'" . ($hint ? ", did you mean '$hint'?" : '.'));
 	}
 
 

tests/Database/Row.phpt

@@ -28,7 +28,7 @@ test(function () use ($context) {
 
 	Assert::error(function () use ($row) {
 		$row->{2};
-	}, Nette\MemberAccessException::class, "Cannot read an undeclared column '2'.");
+	}, Nette\MemberAccessException::class, "Cannot read an undeclared column '2', did you mean '123'?");
 
 	Assert::error(function () use ($row) {
 		$row[2];

tests/Database/Table/Table.basic.phpt

@@ -84,6 +84,10 @@ test(function () use ($connection, $structure) {
 		$book->test;
 	}, Nette\MemberAccessException::class, "Cannot read an undeclared column 'test'.");
 
+	Assert::exception(function () use ($book) {
+		$book->tilte;
+	}, Nette\MemberAccessException::class, "Cannot read an undeclared column 'tilte', did you mean 'title'?");
+
 	Assert::exception(function () use ($book) {
 		$book->ref('test');
 	}, Nette\MemberAccessException::class, 'No reference found for $book->ref(test).');