Correction to the treatment of 0 in FLOAT type.

composer.json

@@ -1,6 +1,6 @@
 {
 	"name": "martywallace/simpledb",
-	"version": "2.2.0",
+	"version": "2.2.1",
 	"description": "A thin wrapper around PDO for common MySQL operations.",
 	"homepage": "https://github.com/MartyWallace/simpledb",
 	"type": "library",

src/SimpleDb/Field.php

@@ -63,7 +63,7 @@ class Field {
 	public static function isNull($value, $type) {
 		if ($type === self::INT || $type === self::FLOAT) {
 			// Don't treat '0' and 0 as empty values, those are valid ints of value 0.
-			return empty($value) && $value !== 0 && $value !== '0';
+			return $value === null || $value === false || $value === '' || $value === [];
 		} else if ($type === self::STRING) {
 			// Don't consider empty strings, "0" or 0 as empty, we still want to store those.
 			return $value === null || $value === false || $value === [];

tests/FieldTest.php

@@ -85,6 +85,30 @@ public function testIntToRefined() {
 		]);
 	}
 
+	public function testFloatToRefined() {
+		$this->assertSame([
+			Field::toRefined(0, Field::FLOAT),
+			Field::toRefined('0', Field::FLOAT),
+			Field::toRefined('0.0', Field::FLOAT),
+			Field::toRefined(0.000000, Field::FLOAT),
+			Field::toRefined('', Field::FLOAT),
+			Field::toRefined(false, Field::FLOAT),
+			Field::toRefined(null, Field::FLOAT),
+			Field::toRefined(123.5, Field::FLOAT),
+			Field::toRefined('0832', Field::FLOAT)
+		], [
+			0,
+			0.0,
+			0.0,
+			0.0,
+			null,
+			null,
+			null,
+			123.5,
+			832.0
+		]);
+	}
+
 	public function testStringToPrimitive() {
 		$this->assertSame([
 			Field::toPrimitive('', Field::STRING),