make it possible to pass array of keys to get()

Author: anlutro

src/ArrayUtil.php

@@ -37,6 +37,10 @@ public static function get(array $data, $key, $default = null)
 			return $data;
 		}
 
+		if (is_array($key)) {
+			return static::getArray($data, $key, $default);
+		}
+
 		foreach (explode('.', $key) as $segment) {
 			if (!is_array($data)) {
 				return $default;
@@ -52,6 +56,17 @@ public static function get(array $data, $key, $default = null)
 		return $data;
 	}
 
+	protected static function getArray(array $input, $keys, $default = null)
+	{
+		$output = [];
+
+		foreach ($keys as $key) {
+			static::set($output, $key, static::get($input, $key, $default));
+		}
+
+		return $output;
+	}
+
 	/**
 	 * Determine if an array has a given key.
 	 *

src/SettingStore.php

@@ -35,8 +35,8 @@ abstract class SettingStore
 	/**
 	 * Get a specific key from the settings data.
 	 *
-	 * @param  string $key
-	 * @param  mixed  $default Optional default value.
+	 * @param  string|array $key
+	 * @param  mixed        $default Optional default value.
 	 *
 	 * @return mixed
 	 */

tests/ArrayUtilTest.php

@@ -0,0 +1,132 @@
+<?php
+
+use anlutro\LaravelSettings\ArrayUtil;
+
+class ArrayUtilTest extends PHPUnit_Framework_TestCase
+{
+	/**
+	 * @test
+	 * @dataProvider getGetData
+	 */
+	public function getReturnsCorrectValue(array $data, $key, $expected)
+	{
+		$this->assertEquals($expected, ArrayUtil::get($data, $key));
+	}
+
+	public function getGetData()
+	{
+		return [
+			[[], 'foo', null],
+			[['foo' => 'bar'], 'foo', 'bar'],
+			[['foo' => 'bar'], 'bar', null],
+			[['foo' => 'bar'], 'foo.bar', null],
+			[['foo' => ['bar' => 'baz']], 'foo.bar', 'baz'],
+			[['foo' => ['bar' => 'baz']], 'foo.baz', null],
+			[['foo' => ['bar' => 'baz']], 'foo', ['bar' => 'baz']],
+			[
+				['foo' => 'bar', 'bar' => 'baz'],
+				['foo', 'bar'],
+				['foo' => 'bar', 'bar' => 'baz']
+			],
+			[
+				['foo' => ['bar' => 'baz'], 'bar' => 'baz'],
+				['foo.bar', 'bar'],
+				['foo' => ['bar' => 'baz'], 'bar' => 'baz'],
+			],
+			[
+				['foo' => ['bar' => 'baz'], 'bar' => 'baz'],
+				['foo.bar'],
+				['foo' => ['bar' => 'baz']],
+			],
+			[
+				['foo' => ['bar' => 'baz'], 'bar' => 'baz'],
+				['foo.bar', 'baz'],
+				['foo' => ['bar' => 'baz'], 'baz' => null],
+			],
+		];
+	}
+
+	/**
+	 * @test
+	 * @dataProvider getSetData
+	 */
+	public function setSetsCorrectKeyToValue(array $input, $key, $value, array $expected)
+	{
+		ArrayUtil::set($input, $key, $value);
+		$this->assertEquals($expected, $input);
+	}
+
+	public function getSetData()
+	{
+		return [
+			[
+				['foo' => 'bar'],
+				'foo',
+				'baz',
+				['foo' => 'baz'],
+			],
+			[
+				[],
+				'foo',
+				'bar',
+				['foo' => 'bar'],
+			],
+			[
+				[],
+				'foo.bar',
+				'baz',
+				['foo' => ['bar' => 'baz']],
+			],
+			[
+				['foo' => ['bar' => 'baz']],
+				'foo.baz',
+				'foo',
+				['foo' => ['bar' => 'baz', 'baz' => 'foo']],
+			],
+			[
+				['foo' => ['bar' => 'baz']],
+				'foo.baz.bar',
+				'baz',
+				['foo' => ['bar' => 'baz', 'baz' => ['bar' => 'baz']]],
+			],
+			[
+				[],
+				'foo.bar.baz',
+				'foo',
+				['foo' => ['bar' => ['baz' => 'foo']]],
+			],
+		];
+	}
+
+	/** @test */
+	public function setThrowsExceptionOnNonArraySegment()
+	{
+		$data = ['foo' => 'bar'];
+		$this->setExpectedException('UnexpectedValueException', 'Non-array segment encountered');
+		ArrayUtil::set($data, 'foo.bar', 'baz');
+	}
+
+	/**
+	 * @test
+	 * @dataProvider getHasData
+	 */
+	public function hasReturnsCorrectly(array $input, $key, $expected)
+	{
+		$this->assertEquals($expected, ArrayUtil::has($input, $key));
+	}
+
+	public function getHasData()
+	{
+		return [
+			[[], 'foo', false],
+			[['foo' => 'bar'], 'foo', true],
+			[['foo' => 'bar'], 'bar', false],
+			[['foo' => 'bar'], 'foo.bar', false],
+			[['foo' => ['bar' => 'baz']], 'foo.bar', true],
+			[['foo' => ['bar' => 'baz']], 'foo.baz', false],
+			[['foo' => ['bar' => 'baz']], 'foo', true],
+			[['foo' => null], 'foo', true],
+			[['foo' => ['bar' => null]], 'foo.bar', true],
+		];
+	}
+}