add CurrencyUpdater

readme.md

@@ -204,8 +204,25 @@ Examples:
 
 ```
 
+### Use the CurrencyUpdater
+ 
+Download and parse a CurrencyFile and save it with a Closure
+
+Examples:
+```php
+
+		$updater = new \Bnet\Money\Updater\CurrencyUpdater();
+
+		$updater->update_currency_table(function($item) use($db) {
+			$db->save($item);
+		});
+
+```
+
 ## Changelog
 
+**0.1.4
+- add CurrencyUpdater to download and parse a file and save the data with a Closure 
 **0.1.3
 - add TaxedMoney for use MoneyObject with Tax 
 **0.1.2

src/Money/Updater/CurrencyUpdater.php

+<?php
+/**
+ * User: thorsten
+ * Date: 22.07.16
+ * Time: 21:48
+ */
+
+namespace Bnet\Money\Updater;
+
+
+use Bnet\Money\Updater\Exception\CurrencyUpdaterException;
+
+class CurrencyUpdater {
+	
+	const DEFAULT_CURRENCY_FILE = 'https://raw.github.com/RubyMoney/money/master/config/currency_iso.json';
+
+	protected $file;
+
+	/**
+	 * CurrencyUpdater constructor.
+	 * @param null $file
+	 */
+	public function __construct($file=null) {
+		$this->file = $file ?: self::DEFAULT_CURRENCY_FILE;
+	}
+
+
+	/**
+	 * Update the currencyTable from a file/url with a specific parser
+	 * @param \Closure $itemParser
+	 * @param \Closure $fileParser
+	 * @return bool
+	 */
+	public function update_currency_table($itemSaver, \Closure $itemParser = null, \Closure $fileParser = null) {
+		$file = $this->file;
+		$fileParser = @$fileParser ?: function ($file) {
+			return json_decode(file_get_contents($file), true);
+		};
+
+		$err = array();
+
+		$arr = $fileParser($file);
+		foreach ($arr as $item) {
+			try {
+				if (is_callable($itemParser))
+					$itemParser($item, $itemSaver);
+				else
+					$this->parseItem($item, $itemSaver);
+			} catch (CurrencyUpdaterException $e) {
+				if ($e->getPrevious())
+					$err[$item['iso_code']] = get_class($e->getPrevious()) . '::' . $e->getPrevious()->getMessage();
+				else
+					$err[$item['iso_code']] = get_class($e) . '::' . $e->getMessage();
+			}
+		}
+
+		// return errorList or true if no errors
+		return $err ?: true;
+	}
+
+
+	/**
+	 * Read Currency Item and parse it with the $parser
+	 * parse an item with the given parser and return the result of the $parser
+	 * @param array $raw_item
+	 * @param \Closure $saver
+	 * @return mixed
+	 * @throws CurrencyUpdaterException
+	 */
+	protected function parseItem($raw_item, \Closure $saver) {
+		/* $raw_item
+		"eur": {
+			"priority": 2,
+			"iso_code": "EUR",
+			"name": "Euro",
+			"symbol": "€",
+			"alternate_symbols": [],
+			"subunit": "Cent",
+			"subunit_to_unit": 100,
+			"symbol_first": true,
+			"html_entity": "&#x20AC;",
+			"decimal_mark": ",",
+			"thousands_separator": ".",
+			"iso_numeric": "978",
+			"smallest_denomination": 1
+		},
+		 */
+		$item = [
+			'code' => strtoupper($raw_item['iso_code']),
+			'iso' => $raw_item['iso_numeric'],
+			'name' => $raw_item['name'],
+			'symbol_left' => '',
+			'symbol_right' => '',
+			'decimal_mark' => $raw_item['decimal_mark'],
+			'thousands_separator' => $raw_item['thousands_separator'],
+			'unit_factor' => $raw_item['subunit_to_unit']
+		];
+
+		if ($raw_item['symbol_first']) {
+			$item['symbol_left'] = $raw_item['symbol'];
+		} else {
+			$item['symbol_right'] = $raw_item['symbol'];
+		}
+
+		// calculate the decimal places
+		$item['decimal_place'] = strlen(preg_replace('/1/', '', $raw_item['subunit_to_unit']));
+
+		try {
+			$ret = $saver($item);
+		} catch (\Exception $e) {
+			if ($e instanceof CurrencyUpdaterException)
+				throw new CurrencyUpdaterException("", 0, $e);
+		}
+		return $ret;
+	}
+
+
+}
\ No newline at end of file

src/Money/Updater/Exception/CurrencyUpdaterException.php

+<?php
+/**
+ * User: thorsten
+ * Date: 22.07.16
+ * Time: 21:54
+ */
+
+namespace Bnet\Money\Updater\Exception;
+
+
+class CurrencyUpdaterException extends \Exception {
+
+}
\ No newline at end of file

tests/Money/Updater/CurrencyUpdaterTest.php

+<?php
+/**
+ * User: thorsten
+ * Date: 22.07.16
+ * Time: 23:00
+ */
+
+namespace Tests\Bnet\Money\Updater;
+
+
+class CurrencyUpdaterTest extends \PHPUnit_Framework_TestCase {
+
+
+	public function testCurrencyUpdaterDefaultJsonParser() {
+		$tmpFile = '/tmp/currencyFile.json';
+		$data = '{
+	"eur": {
+		"priority": 2,
+		"iso_code": "EUR",
+		"name": "Euro",
+		"symbol": "€",
+		"alternate_symbols": [
+
+		],
+		"subunit": "Cent",
+		"subunit_to_unit": 100,
+		"symbol_first": true,
+		"html_entity": "7",
+		"decimal_mark": ",",
+		"thousands_separator": ".",
+		"iso_numeric": "978",
+		"smallest_denomination": 1
+	}
+}';
+		file_put_contents($tmpFile, $data);
+		$updater = new \Bnet\Money\Updater\CurrencyUpdater($tmpFile);
+
+		$a = null;
+		$updater->update_currency_table(function($item) use(&$a) {
+			$a = $item;
+		});
+
+		$this->assertEquals('EUR', $a['code'], 'code');
+		$this->assertEquals('978', $a['iso'], 'iso');
+		$this->assertEquals('Euro', $a['name'], 'name');
+		$this->assertEquals("€", $a['symbol_left'], 'symbol_left');
+		$this->assertEquals("", $a['symbol_right'], 'symbol_right');
+		$this->assertEquals(2, $a['decimal_place'], 'decimal_place');
+		$this->assertEquals(',', $a['decimal_mark'], 'decimal_mark');
+		$this->assertEquals('.', $a['thousands_separator'], 'thousands_separator');
+		$this->assertEquals(100, $a['unit_factor'], 'unit_factor');
+
+		@unlink($tmpFile);
+	}
+
+	public function testCurrencyUpdaterCustomParser() {
+		$tmpFile = '/tmp/currencyFile';
+		$data = 'T1:Test2';
+		file_put_contents($tmpFile, $data);
+		$updater = new \Bnet\Money\Updater\CurrencyUpdater($tmpFile);
+
+		$a = null;
+		$updater->update_currency_table(function($item) use(&$a) {
+			$a = $item;
+		}, function($item, $saver) {
+			return $saver($item);
+		}, function($file) {
+			return [explode(':', file_get_contents($file))];
+		});
+
+		$this->assertEquals('T1', $a[0], 'first');
+		$this->assertEquals('Test2', $a[1], 'second');
+
+		@unlink($tmpFile);
+	}
+}