merged branch thewholelifetolearn/master (PR #6718)

This PR was squashed before being merged into the master branch (closes #6718).

Discussion
----------

[Validator] Added ISBN validator

Bug fix: no
Feature addition: yes
Backwards compatibility break: no
License of the code: MIT

For information about ISBN-10 and ISBN13: https://en.wikipedia.org/wiki/Isbn

This constraint permits to valid a ISBN-10 code, a ISBN-13 code or both on a value

Commits
-------

4582261 [Validator] Added ISBN validator

src/Symfony/Component/Validator/Constraints/Isbn.php

@@ -0,0 +1,47 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+*
+* (c) Fabien Potencier <fabien@symfony.com>
+*
+* For the full copyright and license information, please view the LICENSE
+* file that was distributed with this source code.
+*/
+
+namespace Symfony\Component\Validator\Constraints;
+
+use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\Exception\MissingOptionsException;
+
+/**
+ * @Annotation
+ * 
+ * @author The Whole Life To Learn <thewholelifetolearn@gmail.com>
+ * 
+ * @api
+ */
+class Isbn extends Constraint
+{
+    public $isbn10Message = 'This value is not a valid ISBN-10.';
+    public $isbn13Message = 'This value is not a valid ISBN-13.';
+    public $bothIsbnMessage = 'This value is neither a valid ISBN-10 nor a valid ISBN-13.';
+    public $isbn10;
+    public $isbn13;
+
+    public function __construct($options = null)
+    {
+        if (null !== $options && !is_array($options)) {
+            $options = array(
+                'isbn10' => $options,
+                'isbn13' => $options,
+            );
+        }
+
+        parent::__construct($options);
+
+        if (null === $this->isbn10 && null === $this->isbn13) {
+            throw new MissingOptionsException('Either option "isbn10" or "isbn13" must be given for constraint ' . __CLASS__, array('isbn10', 'isbn13'));
+        }
+    }
+}

src/Symfony/Component/Validator/Constraints/IsbnValidator.php

@@ -0,0 +1,90 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Validator\Constraints;
+
+use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\ConstraintValidator;
+use Symfony\Component\Validator\Exception\UnexpectedTypeException;
+
+/**
+ * Validates wether the value is a valid ISBN-10 or ISBN-13
+ * 
+ * @see https://en.wikipedia.org/wiki/Isbn
+ * @author The Whole Life To Learn <thewholelifetolearn@gmail.com>
+ *
+ * @api
+ */
+class IsbnValidator extends ConstraintValidator
+{
+    /**
+     * {@inheritDoc}
+     */
+    public function validate($value, Constraint $constraint)
+    {
+        if (null === $value || '' === $value) {
+            return;
+        }
+
+        if (!is_scalar($value) && !(is_object($value) && method_exists($value, '__toString'))) {
+            throw new UnexpectedTypeException($value, 'string');
+        }
+
+        if (!is_numeric($value)) {
+            $value = str_replace('-', '', $value);
+        }
+
+        $validation = 0;
+        $value = strtoupper($value);
+        $valueLength = strlen($value);
+
+        if (10 === $valueLength && null !== $constraint->isbn10) {
+            for ($i = 0; $i < 10; $i++) {
+                if ($value[$i] == 'X') {
+                    $validation += 10 * intval(10 - $i);
+                } else {
+                    $validation += intval($value[$i]) * intval(10 - $i);
+                }
+            }
+
+            if ($validation % 11 != 0) {
+                if (null !== $constraint->isbn13) {
+                    $this->context->addViolation($constraint->bothIsbnMessage);
+                } else {
+                    $this->context->addViolation($constraint->isbn10Message);
+                }
+            }
+        } elseif (13 === $valueLength && null !== $constraint->isbn13) {
+            for ($i = 0; $i < 13; $i += 2) {
+                $validation += intval($value[$i]);
+            }
+            for ($i = 1; $i < 12; $i += 2) {
+                $validation += intval($value[$i]) * 3;
+            }
+
+            if ($validation % 10 != 0) {
+                if (null !== $constraint->isbn10) {
+                    $this->context->addViolation($constraint->bothIsbnMessage);
+                } else {
+                    $this->context->addViolation($constraint->isbn13Message);
+                }
+            }
+        } else {
+            if (null !== $constraint->isbn10 && null !== $constraint->isbn13) {
+                $this->context->addViolation($constraint->bothIsbnMessage);
+            } elseif (null !== $constraint->isbn10) {
+                $this->context->addViolation($constraint->isbn10Message);
+            } else {
+                $this->context->addViolation($constraint->isbn13Message);
+            }
+        }
+    }
+}

src/Symfony/Component/Validator/Resources/translations/validators.de.xlf

@@ -226,6 +226,18 @@
                 <source>This is not a valid International Bank Account Number (IBAN).</source>
                 <target>Dieser Wert ist keine gültige IBAN-Kontonummer.</target>
             </trans-unit>
+            <trans-unit id="60">
+                <source>This value is not a valid ISBN-10.</source>
+                <target>Dieser Wert entspricht keinem gültigen ISBN-10.</target>
+            </trans-unit>
+            <trans-unit id="61">
+                <source>This value is not a valid ISBN-13.</source>
+                <target>Dieser Wert entspricht keinem gültigen ISBN-13.</target>
+            </trans-unit>
+            <trans-unit id="62">
+                <source>This value is neither a valid ISBN-10 nor a valid ISBN-13.</source>
+                <target>Dieser Wert ist weder ein gültiges ISBN-10 noch ein gültige ISBN-13.</target>
+            </trans-unit>
         </body>
     </file>
 </xliff>

src/Symfony/Component/Validator/Resources/translations/validators.en.xlf

@@ -226,6 +226,18 @@
                 <source>This is not a valid International Bank Account Number (IBAN).</source>
                 <target>This is not a valid International Bank Account Number (IBAN).</target>
             </trans-unit>
+            <trans-unit id="60">
+                <source>This value is not a valid ISBN-10.</source>
+                <target>This value is not a valid ISBN-10.</target>
+            </trans-unit>
+            <trans-unit id="61">
+                <source>This value is not a valid ISBN-13.</source>
+                <target>This value is not a valid ISBN-13.</target>
+            </trans-unit>
+            <trans-unit id="62">
+                <source>This value is neither a valid ISBN-10 nor a valid ISBN-13.</source>
+                <target>This value is neither a valid ISBN-10 nor a valid ISBN-13.</target>
+            </trans-unit>
         </body>
     </file>
 </xliff>

src/Symfony/Component/Validator/Resources/translations/validators.fr.xlf

@@ -226,6 +226,18 @@
                 <source>This is not a valid International Bank Account Number (IBAN).</source>
                 <target>Le numéro IBAN (International Bank Account Number) saisi n'est pas valide.</target>
             </trans-unit>
+            <trans-unit id="60">
+                <source>This value is not a valid ISBN-10.</source>
+                <target>Cette valeur n'est pas un code ISBN-10 valide.</target>
+            </trans-unit>
+            <trans-unit id="61">
+                <source>This value is not a valid ISBN-13.</source>
+                <target>Cette valeur n'est pas un code ISBN-13 valide.</target>
+            </trans-unit>
+            <trans-unit id="62">
+                <source>This value is neither a valid ISBN-10 nor a valid ISBN-13.</source>
+                <target>Cette valeur n'est ni un code ISBN-10, ni un code ISBN-13 valide.</target>
+            </trans-unit>
         </body>
     </file>
 </xliff>