mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-10-22 14:05:37 +02:00
4965352bc3
BUGFIX Removing the appended querying for NULL or empty Locale values in Translatable->augmentSQL() - this should no longer be necessary as we set default locales to all records through Translatable->requireDefaultRecords() git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@75826 467b73ca-7a2a-4603-9d3b-597d59a354a9
1248 lines
43 KiB
PHP
Executable File
1248 lines
43 KiB
PHP
Executable File
<?php
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/**
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* The Translatable decorator allows your DataObjects to have versions in different languages,
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* defining which fields are can be translated. Translatable can be applied
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* to any {@link DataObject} subclass, but is mostly used with {@link SiteTree}.
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* Translatable is compatible with the {@link Versioned} extension.
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* To avoid cluttering up the database-schema of the 99% of sites without multiple languages,
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* the translation-feature is disabled by default.
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*
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* Locales (e.g. 'en_US') are used in Translatable for identifying a record by language,
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* see section "Locales and Language Tags".
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*
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* <h2>Configuration</h2>
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*
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* <h3>Through Object::add_extension()</h3>
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* Enabling Translatable through {@link Object::add_extension()} in your _config.php:
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* <code>
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* Object::add_extension('MyClass', 'Translatable');
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* </code>
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* This is the recommended approach for enabling Translatable.
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*
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* <h3>Through $extensions</h3>
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* <code>
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* class MyClass extends DataObject {
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* static $extensions = array(
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* "Translatable"
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* );
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* }
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* </code>
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*
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* Make sure to rebuild the database through /dev/build after enabling translatable.
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* Use the correct {@link set_default_locale()} before building the database
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* for the first time, as this locale will be written on all new records.
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*
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* <h3>"Default" locales</h3>
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*
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* Important: If the "default language" of your site is not US-English (en_US),
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* please ensure to set the appropriate default language for
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* your content before building the database with Translatable enabled:
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* <code>
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* Translatable::set_default_locale(<locale>); // e.g. 'de_DE' or 'fr_FR'
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* </code>
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*
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* For the Translatable class, a "locale" consists of a language code plus a region code separated by an underscore,
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* for example "de_AT" for German language ("de") in the region Austria ("AT").
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* See http://www.w3.org/International/articles/language-tags/ for a detailed description.
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*
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* <h2>Usage</h2>
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*
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* Getting a translation for an existing instance:
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* <code>
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* $translatedObj = DataObject::get_one_by_locale('MyObject', 'de_DE');
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* </code>
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*
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* Getting a translation for an existing instance:
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* <code>
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* $obj = DataObject::get_by_id('MyObject', 99); // original language
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* $translatedObj = $obj->getTranslation('de_DE');
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* </code>
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*
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* Getting translations through {@link Translatable::set_reading_locale()}.
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* This is *not* a recommended approach, but sometimes inavoidable (e.g. for {@link Versioned} methods).
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* <code>
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* $origLocale = Translatable::get_reading_locale();
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* Translatable::set_reading_locale('de_DE');
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* $obj = Versioned::get_one_by_stage('MyObject', "ID = 99");
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* Translatable::set_reading_locale($origLocale);
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* </code>
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*
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* Creating a translation:
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* <code>
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* $obj = new MyObject();
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* $translatedObj = $obj->createTranslation('de_DE');
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* </code>
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*
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* <h2>Usage for SiteTree</h2>
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*
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* Translatable can be used for subclasses of {@link SiteTree} as well.
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* If a child page translation is requested without the parent
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* page already having a translation in this language, the extension
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* will recursively create translations up the tree.
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* Caution: The "URLSegment" property is enforced to be unique across
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* languages by auto-appending the language code at the end.
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* You'll need to ensure that the appropriate "reading language" is set
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* before showing links to other pages on a website through $_GET['locale'].
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* Pages in different languages can have different publication states
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* through the {@link Versioned} extension.
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*
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* Note: You can't get Children() for a parent page in a different language
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* through set_reading_locale(). Get the translated parent first.
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*
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* <code>
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* // wrong
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* Translatable::set_reading_lang('de_DE');
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* $englishParent->Children();
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* // right
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* $germanParent = $englishParent->getTranslation('de_DE');
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* $germanParent->Children();
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* </code>
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*
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* <h2>Translation groups</h2>
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*
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* Each translation can have an associated "master" object in another language which it is based on,
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* as defined by the "MasterTranslationID" property. This relation is optional, meaning you can
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* create translations which have no representation in the "default language".
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* This "original" doesn't have to be in a default language, meaning
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* a french translation can have a german original, without either of them having a representation
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* in the default english language tree.
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* Caution: There is no versioning for translation groups,
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* meaning associating an object with a group will affect both stage and live records.
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*
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* SiteTree database table (abbreviated)
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* ^ ID ^ URLSegment ^ Title ^ Locale ^
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* | 1 | about-us | About us | en_US |
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* | 2 | ueber-uns | Über uns | de_DE |
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* | 3 | contact | Contact | en_US |
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*
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* SiteTree_translationgroups database table
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* ^ TranslationGroupID ^ OriginalID ^
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* | 99 | 1 |
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* | 99 | 2 |
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* | 199 | 3 |
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*
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* <h2>Character Sets</h2>
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*
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* Caution: Does not apply any character-set conversion, it is assumed that all content
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* is stored and represented in UTF-8 (Unicode). Please make sure your database and
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* HTML-templates adjust to this.
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*
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* <h2>Uninstalling/Disabling</h2>
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*
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* Disabling Translatable after creating translations will lead to all
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* pages being shown in the default sitetree regardless of their language.
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* It is advised to start with a new database after uninstalling Translatable,
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* or manually filter out translated objects through their "Locale" property
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* in the database.
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*
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* @see http://doc.silverstripe.com/doku.php?id=multilingualcontent
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*
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* @author Ingo Schommer <ingo (at) silverstripe (dot) com>
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* @author Michael Gall <michael (at) wakeless (dot) net>
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* @author Bernat Foj Capell <bernat@silverstripe.com>
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*
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* @package sapphire
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* @subpackage i18n
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*/
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class Translatable extends DataObjectDecorator {
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/**
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* The 'default' language.
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* @var string
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*/
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protected static $default_locale = 'en_US';
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/**
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* The language in which we are reading dataobjects.
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* Usually stored in session, specific to the "site mode":
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* either 'site' or 'cms'.
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* @see Director::get_site_mode()
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* @var string
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*/
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protected static $reading_locale = null;
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/**
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* Indicates if the start language has been determined using choose_site_locale()
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* @var boolean
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*/
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protected static $language_decided = false;
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/**
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* A cached list of existing tables
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*
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* @var mixed
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*/
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protected static $tableList = null;
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/**
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* An array of fields that can be translated.
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* @var array
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*/
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protected $translatableFields;
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/**
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* A map of the field values of the original (untranslated) DataObject record
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* @var array
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*/
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protected $original_values = null;
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/**
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* @var boolean Temporarily override the "auto-filter" for {@link current_locale()}
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* in {@link augmentSQL()}. IMPORTANT: You must set this value back to TRUE
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* after the temporary usage.
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*/
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protected static $enable_lang_filter = true;
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/**
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* Choose the language the site is currently on.
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* If $_GET['locale'] is set, then it will use that language, and store it in the session.
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* Otherwise it checks the session for a possible stored language, either from namespace to the site_mode
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* ('site' or 'cms'), or for a 'global' language setting.
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* The final option is the member preference.
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*
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* @todo Re-implement cookie and member option
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*
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* @uses Director::get_site_mode()
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* @param $langsAvailable array A numerical array of languages which are valid choices (optional)
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* @return string Selected language (also saved in $reading_locale).
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*/
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static function choose_site_locale($langsAvailable = array()) {
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$siteMode = Director::get_site_mode(); // either 'cms' or 'site'
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if(self::$reading_locale) {
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self::$language_decided = true;
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return self::$reading_locale;
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}
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if((isset($_GET['locale']) && !$langsAvailable) || (isset($_GET['locale']) && in_array($_GET['locale'], $langsAvailable))) {
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// get from GET parameter
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self::set_reading_locale($_GET['locale']);
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} else {
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self::set_reading_locale(self::default_locale());
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}
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self::$language_decided = true;
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return self::$reading_locale;
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}
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/**
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* Get the current reading language.
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* This value has to be set before the schema is built with translatable enabled,
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* any changes after this can cause unintended side-effects.
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*
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* @return string
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*/
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static function default_locale() {
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return self::$default_locale;
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}
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/**
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* Set default language. Please set this value *before* creating
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* any database records (like pages), as this locale will be attached
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* to all new records.
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*
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* @param $locale String
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*/
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static function set_default_locale($locale) {
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self::$default_locale = $locale;
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}
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/**
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* Get the current reading language.
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* @return string
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*/
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static function current_locale() {
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if (!self::$language_decided) self::choose_site_locale();
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return self::$reading_locale;
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}
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/**
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* Set the reading language, either namespaced to 'site' (website content)
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* or 'cms' (management backend). This value is used in {@link augmentSQL()}
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* to "auto-filter" all SELECT queries by this language.
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* See {@link $enable_lang_filter} on how to override this behaviour temporarily.
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*
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* @param string $lang New reading language.
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*/
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static function set_reading_locale($locale) {
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self::$reading_locale = $locale;
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self::$language_decided = true;
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}
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/**
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* Get a singleton instance of a class in the given language.
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* @param string $class The name of the class.
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* @param string $locale The name of the language.
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* @param string $filter A filter to be inserted into the WHERE clause.
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* @param boolean $cache Use caching (default: false)
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* @param string $orderby A sort expression to be inserted into the ORDER BY clause.
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* @return DataObject
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*/
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static function get_one_by_locale($class, $locale, $filter = '', $cache = false, $orderby = "") {
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$orig = Translatable::current_locale();
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Translatable::set_reading_locale($locale);
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$do = DataObject::get_one($class, $filter, $cache, $orderby);
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Translatable::set_reading_locale($orig);
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return $do;
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}
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/**
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* Get all the instances of the given class translated to the given language
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*
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* @param string $class The name of the class
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* @param string $locale The name of the language
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* @param string $filter A filter to be inserted into the WHERE clause.
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* @param string $sort A sort expression to be inserted into the ORDER BY clause.
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* @param string $join A single join clause. This can be used for filtering, only 1 instance of each DataObject will be returned.
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* @param string $limit A limit expression to be inserted into the LIMIT clause.
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* @param string $containerClass The container class to return the results in.
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* @param string $having A filter to be inserted into the HAVING clause.
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* @return mixed The objects matching the conditions.
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*/
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static function get_by_locale($class, $locale, $filter = '', $sort = '', $join = "", $limit = "", $containerClass = "DataObjectSet", $having = "") {
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$oldLang = self::current_locale();
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self::set_reading_locale($locale);
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$result = DataObject::get($class, $filter, $sort, $join, $limit, $containerClass, $having);
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self::set_reading_locale($oldLang);
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return $result;
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}
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/**
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* Gets all translations for this specific page.
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* Doesn't include the language of the current record.
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*
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* @return array Numeric array of all language codes, sorted alphabetically.
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*/
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function getTranslatedLangs() {
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$langs = array();
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$baseDataClass = ClassInfo::baseDataClass($this->owner->class); //Base Class
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$translationGroupClass = $baseDataClass . "_translationgroups";
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if($this->owner->hasExtension("Versioned") && Versioned::current_stage() == "Live") {
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$baseDataClass = $baseDataClass . "_Live";
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}
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$translationGroupID = $this->getTranslationGroup();
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if(is_numeric($translationGroupID)) {
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$query = new SQLQuery(
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'DISTINCT Locale',
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sprintf(
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'"%s" LEFT JOIN "%s" ON "%s"."OriginalID" = "%s"."ID"',
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$baseDataClass,
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$translationGroupClass,
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$translationGroupClass,
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$baseDataClass
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), // from
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sprintf(
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'"%s"."TranslationGroupID" = %d AND "%s"."Locale" != \'%s\'',
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$translationGroupClass,
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$translationGroupID,
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$baseDataClass,
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$this->owner->Locale
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) // where
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);
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$langs = $query->execute()->column();
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}
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if($langs) {
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$langCodes = array_values($langs);
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sort($langCodes);
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return $langCodes;
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} else {
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return array();
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};
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}
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/**
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* Get a list of languages in which a given element has been translated.
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*
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* @deprecated 2.4 Use {@link getTranslations()}
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*
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* @param string $class Name of the class of the element
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* @param int $id ID of the element
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* @return array List of languages
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*/
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static function get_langs_by_id($class, $id) {
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$do = DataObject::get_by_id($class, $id);
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return ($do ? $do->getTranslatedLangs() : array());
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}
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/**
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* Enables the multilingual feature
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*
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* @deprecated 2.4 Use Object::add_extension('SiteTree', 'Translatable')
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*/
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static function enable() {
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Object::add_extension('SiteTree', 'Translatable');
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}
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/**
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* Disable the multilingual feature
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*
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* @deprecated 2.4 Use Object::remove_extension('SiteTree', 'Translatable')
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*/
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static function disable() {
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Object::remove_extension('SiteTree', 'Translatable');
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}
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/**
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* Check whether multilingual support has been enabled
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*
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* @deprecated 2.4 Use Object::has_extension('SiteTree', 'Translatable')
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* @return boolean True if enabled
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*/
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static function is_enabled() {
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return Object::has_extension('SiteTree', 'Translatable');
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}
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/**
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* Construct a new Translatable object.
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* @var array $translatableFields The different fields of the object that can be translated.
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* This is currently not implemented, all fields are marked translatable (see {@link setOwner()}).
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*/
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function __construct($translatableFields = null) {
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parent::__construct();
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// @todo Disabled selection of translatable fields - we're setting all fields as translatable in setOwner()
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/*
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if(!is_array($translatableFields)) {
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$translatableFields = func_get_args();
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}
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$this->translatableFields = $translatableFields;
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*/
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// workaround for extending a method on another decorator (Hierarchy):
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// split the method into two calls, and overwrite the wrapper AllChildrenIncludingDeleted()
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// Has to be executed even with Translatable disabled, as it overwrites the method with same name
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// on Hierarchy class, and routes through to Hierarchy->doAllChildrenIncludingDeleted() instead.
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// Caution: There's an additional method for augmentAllChildrenIncludingDeleted()
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}
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function setOwner(Object $owner) {
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parent::setOwner($owner);
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// setting translatable fields by inspecting owner - this should really be done in the constructor
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$this->translatableFields = array_keys($this->owner->inheritedDatabaseFields());
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}
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function extraStatics() {
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if(get_class($this->owner) == ClassInfo::baseDataClass(get_class($this->owner))) {
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return array(
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"db" => array(
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"Locale" => "DBLocale",
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//"TranslationMasterID" => "Int" // optional relation to a "translation master"
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),
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"defaults" => array(
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"Locale" => Translatable::default_locale() // as an overloaded getter as well: getLang()
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)
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);
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} else {
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return array();
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}
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}
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/**
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* Changes any SELECT query thats not filtering on an ID
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* to limit by the current language defined in {@link current_locale()}.
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* It falls back to "Locale='' OR Lang IS NULL" and assumes that
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* this implies querying for the default language.
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*
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* Use {@link $enable_lang_filter} to temporarily disable this "auto-filtering".
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*/
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function augmentSQL(SQLQuery &$query) {
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// If the record is saved (and not a singleton), and has a locale,
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// limit the current call to its locale. This fixes a lot of problems
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// with other extensions like Versioned
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$locale = ($this->owner->ID && $this->owner->Locale) ? $this->owner->Locale : Translatable::current_locale();
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$baseTable = ClassInfo::baseDataClass($this->owner->class);
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$where = $query->where;
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if(
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$locale
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// unless the filter has been temporarily disabled
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&& self::$enable_lang_filter
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// DataObject::get_by_id() should work independently of language
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&& !$query->filtersOnID()
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// the query contains this table
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// @todo Isn't this always the case?!
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&& array_search($baseTable, array_keys($query->from)) !== false
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// or we're already filtering by Lang (either from an earlier augmentSQL() call or through custom SQL filters)
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&& !preg_match('/("|\'|`)Locale("|\'|`)/', $query->getFilter())
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//&& !$query->filtersOnFK()
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) {
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$qry = sprintf('"%s"."Locale" = \'%s\'', $baseTable, $locale);
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$query->where[] = $qry;
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}
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}
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/**
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* Create <table>_translation database table to enable
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* tracking of "translation groups" in which each related
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* translation of an object acts as a sibling, rather than
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* a parent->child relation.
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*/
|
|
function augmentDatabase() {
|
|
$baseDataClass = ClassInfo::baseDataClass($this->owner->class);
|
|
if($this->owner->class != $baseDataClass) return;
|
|
|
|
$fields = array(
|
|
'OriginalID' => 'Int',
|
|
'TranslationGroupID' => 'Int',
|
|
);
|
|
$indexes = array(
|
|
'OriginalID' => true,
|
|
'TranslationGroupID' => true
|
|
);
|
|
|
|
// Add new tables if required
|
|
DB::requireTable("{$baseDataClass}_translationgroups", $fields, $indexes);
|
|
|
|
// Remove 2.2 style tables
|
|
DB::dontRequireTable("{$baseDataClass}_lang");
|
|
if($this->owner->hasExtension('Versioned')) {
|
|
DB::dontRequireTable("{$baseDataClass}_lang_Live");
|
|
DB::dontRequireTable("{$baseDataClass}_lang_versions");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @todo Find more appropriate place to hook into database building
|
|
*/
|
|
function requireDefaultRecords() {
|
|
// @todo This relies on the Locale attribute being on the base data class, and not any subclasses
|
|
if($this->owner->class != ClassInfo::baseDataClass($this->owner->class)) return false;
|
|
|
|
// If the Translatable extension was added after the first records were already
|
|
// created in the database, make sure to update the Locale property if
|
|
// if wasn't set before
|
|
$idsWithoutLocale = DB::query(sprintf(
|
|
'SELECT "ID" FROM "%s" WHERE "Locale" IS NULL OR "Locale" = \'\'',
|
|
ClassInfo::baseDataClass($this->owner->class)
|
|
))->column();
|
|
if($idsWithoutLocale) {
|
|
foreach($idsWithoutLocale as $id) {
|
|
$obj = DataObject::get_by_id($this->owner->class, $id);
|
|
$obj->Locale = Translatable::default_locale();
|
|
$obj->write();
|
|
$obj->destroy();
|
|
unset($obj);
|
|
}
|
|
Database::alteration_message(sprintf(
|
|
"Added default locale '%s' to table %s","changed",
|
|
Translatable::default_locale(),
|
|
$this->owner->class
|
|
));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Add a record to a "translation group",
|
|
* so its relationship to other translations
|
|
* based off the same object can be determined later on.
|
|
* See class header for further comments.
|
|
*
|
|
* @param int $originalID Either the primary key of the record this new translation is based on,
|
|
* or the primary key of this record, to create a new translation group
|
|
* @param boolean $overwrite
|
|
*/
|
|
public function addTranslationGroup($originalID, $overwrite = false) {
|
|
if(!$this->owner->exists()) return false;
|
|
|
|
$baseDataClass = ClassInfo::baseDataClass($this->owner->class);
|
|
$existingGroupID = $this->getTranslationGroup($originalID);
|
|
|
|
// Remove any existing groups if overwrite flag is set
|
|
if($existingGroupID && $overwrite) {
|
|
$sql = sprintf(
|
|
'DELETE FROM "%s_translationgroups" WHERE "TranslationGroupID" = %d AND "OriginalID" = %d',
|
|
$baseDataClass,
|
|
$existingGroupID,
|
|
$this->owner->ID
|
|
);
|
|
DB::query($sql);
|
|
$existingGroupID = null;
|
|
}
|
|
|
|
// Add to group (only if not in existing group or $overwrite flag is set)
|
|
if(!$existingGroupID) {
|
|
$sql = sprintf(
|
|
'INSERT INTO "%s_translationgroups" ("TranslationGroupID","OriginalID") VALUES (%d,%d)',
|
|
$baseDataClass,
|
|
$originalID,
|
|
$this->owner->ID
|
|
);
|
|
DB::query($sql);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Gets the translation group for the current record.
|
|
* This ID might equal the record ID, but doesn't have to -
|
|
* it just points to one "original" record in the list.
|
|
*
|
|
* @return int Numeric ID of the translationgroup in the <classname>_translationgroup table
|
|
*/
|
|
public function getTranslationGroup() {
|
|
if(!$this->owner->exists()) return false;
|
|
|
|
$baseDataClass = ClassInfo::baseDataClass($this->owner->class);
|
|
return DB::query(
|
|
sprintf('SELECT "TranslationGroupID" FROM "%s_translationgroups" WHERE "OriginalID" = %d', $baseDataClass, $this->owner->ID)
|
|
)->value();
|
|
}
|
|
|
|
/**
|
|
* Removes a record from the translation group lookup table.
|
|
* Makes no assumptions on other records in the group - meaning
|
|
* if this happens to be the last record assigned to the group,
|
|
* this group ceases to exist.
|
|
*/
|
|
public function removeTranslationGroup() {
|
|
$baseDataClass = ClassInfo::baseDataClass($this->owner->class);
|
|
DB::query(
|
|
sprintf('DELETE FROM "%s_translationgroups" WHERE "OriginalID" = %d', $baseDataClass, $this->owner->ID)
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Determine if a table needs Versioned support
|
|
* This is called at db/build time
|
|
*
|
|
* @param string $table Table name
|
|
* @return boolean
|
|
*/
|
|
function isVersionedTable($table) {
|
|
return false;
|
|
}
|
|
|
|
function contentcontrollerInit($controller) {
|
|
Translatable::choose_site_locale();
|
|
$controller->Locale = Translatable::current_locale();
|
|
}
|
|
|
|
function modelascontrollerInit($controller) {
|
|
//$this->contentcontrollerInit($controller);
|
|
}
|
|
|
|
function initgetEditForm($controller) {
|
|
$this->contentcontrollerInit($controller);
|
|
}
|
|
|
|
/**
|
|
* Recursively creates translations for parent pages in this language
|
|
* if they aren't existing already. This is a necessity to make
|
|
* nested pages accessible in a translated CMS page tree.
|
|
* It would be more userfriendly to grey out untranslated pages,
|
|
* but this involves complicated special cases in AllChildrenIncludingDeleted().
|
|
*/
|
|
function onBeforeWrite() {
|
|
// If language is not set explicitly, set it to current_locale.
|
|
// This might be a bit overzealous in assuming the language
|
|
// of the content, as a "single language" website might be expanded
|
|
// later on.
|
|
if(!$this->owner->ID && !$this->owner->Locale) {
|
|
$this->owner->Locale = Translatable::current_locale();
|
|
}
|
|
|
|
// Specific logic for SiteTree subclasses.
|
|
// If page has untranslated parents, create (unpublished) translations
|
|
// of those as well to avoid having inaccessible children in the sitetree.
|
|
// Caution: This logic is very sensitve to infinite loops when translation status isn't determined properly
|
|
// If a parent for the newly written translation was existing before this
|
|
// onBeforeWrite() call, it will already have been linked correctly through createTranslation()
|
|
if($this->owner->hasField('ParentID')) {
|
|
if(
|
|
!$this->owner->ID
|
|
&& $this->owner->ParentID
|
|
&& !$this->owner->Parent()->hasTranslation($this->owner->Locale)
|
|
) {
|
|
$parentTranslation = $this->owner->Parent()->createTranslation($this->owner->Locale);
|
|
$this->owner->ParentID = $parentTranslation->ID;
|
|
}
|
|
}
|
|
|
|
// Specific logic for SiteTree subclasses.
|
|
// Append language to URLSegment to disambiguate URLs, meaning "myfrenchpage"
|
|
// will save as "myfrenchpage-fr" (only if we're not in the "default language").
|
|
// Its bad SEO to have multiple resources with different content (=language) under the same URL.
|
|
if($this->owner->hasField('URLSegment')) {
|
|
if(!$this->owner->ID && $this->owner->Locale != Translatable::default_locale()) {
|
|
$SQL_URLSegment = Convert::raw2sql($this->owner->URLSegment);
|
|
$existingOriginalPage = Translatable::get_one_by_lang('SiteTree', Translatable::default_locale(), "\"URLSegment\" = '{$SQL_URLSegment}'");
|
|
if($existingOriginalPage) $this->owner->URLSegment .= "-{$this->owner->Locale}";
|
|
}
|
|
}
|
|
|
|
// Has to be limited to the default locale, the assumption is that the "page type"
|
|
// dropdown is readonly on all translations.
|
|
if($this->owner->ID && $this->owner->Locale == Translatable::default_locale()) {
|
|
$changedFields = $this->owner->getChangedFields();
|
|
if(isset($changedFields['ClassName'])) {
|
|
$this->owner->ClassName = $changedFields['ClassName']['before'];
|
|
$translations = $this->owner->getTranslations();
|
|
$this->owner->ClassName = $changedFields['ClassName']['after'];
|
|
if($translations) foreach($translations as $translation) {
|
|
$translation->setClassName($this->owner->ClassName);
|
|
$translation = $translation->newClassInstance($translation->ClassName);
|
|
$translation->forceChange();
|
|
$translation->write();
|
|
}
|
|
}
|
|
}
|
|
|
|
// see onAfterWrite()
|
|
if(!$this->owner->ID) {
|
|
$this->owner->_TranslatableIsNewRecord = true;
|
|
}
|
|
}
|
|
|
|
function onAfterWrite() {
|
|
// hacky way to determine if the record was created in the database,
|
|
// or just updated
|
|
if($this->owner->_TranslatableIsNewRecord) {
|
|
// this would kick in for all new records which are NOT
|
|
// created through createTranslation(), meaning they don't
|
|
// have the translation group automatically set.
|
|
$translationGroupID = $this->getTranslationGroup();
|
|
if(!$translationGroupID) $this->addTranslationGroup($this->owner->_TranslationGroupID ? $this->owner->_TranslationGroupID : $this->owner->ID);
|
|
unset($this->owner->_TranslatableIsNewRecord);
|
|
unset($this->owner->_TranslationGroupID);
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* Remove the record from the translation group mapping.
|
|
*/
|
|
function onBeforeDelete() {
|
|
$this->removeTranslationGroup();
|
|
|
|
parent::onBeforeDelete();
|
|
}
|
|
|
|
/**
|
|
* Getter specifically for {@link SiteTree} subclasses
|
|
* which is hooked in to {@link SiteTree::get_by_url()}.
|
|
* Disables translatable to get the page independently
|
|
* of the current language setting.
|
|
*
|
|
* @param string $urlSegment
|
|
* @param string $extraFilter
|
|
* @param boolean $cache
|
|
* @param string|array $orderby
|
|
* @return DataObject
|
|
*/
|
|
function alternateGetByUrl($urlSegment, $extraFilter, $cache = null, $orderby = null) {
|
|
$SQL_URLSegment = Convert::raw2sql($urlSegment);
|
|
self::$enable_lang_filter = false;
|
|
$record = DataObject::get_one('SiteTree', "\"URLSegment\" = '{$SQL_URLSegment}'", false);
|
|
self::$enable_lang_filter = true;
|
|
|
|
return $record;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------------------------//
|
|
|
|
/**
|
|
* If the record is not shown in the default language, this method
|
|
* will try to autoselect a master language which is shown alongside
|
|
* the normal formfields as a readonly representation.
|
|
* This gives translators a powerful tool for their translation workflow
|
|
* without leaving the translated page interface.
|
|
* Translatable also adds a new tab "Translation" which shows existing
|
|
* translations, as well as a formaction to create new translations based
|
|
* on a dropdown with available languages.
|
|
*
|
|
* @todo This is specific to SiteTree and CMSMain
|
|
* @todo Implement a special "translation mode" which triggers display of the
|
|
* readonly fields, so you can translation INTO the "default language" while
|
|
* seeing readonly fields as well.
|
|
*/
|
|
function updateCMSFields(FieldSet &$fields) {
|
|
// Don't apply these modifications for normal DataObjects - they rely on CMSMain logic
|
|
if(!($this->owner instanceof SiteTree)) return;
|
|
|
|
// used in CMSMain->init() to set language state when reading/writing record
|
|
$fields->push(new HiddenField("Locale", "Locale", $this->owner->Locale) );
|
|
|
|
// if a language other than default language is used, we're in "translation mode",
|
|
// hence have to modify the original fields
|
|
$creating = false;
|
|
$baseClass = $this->owner->class;
|
|
$allFields = $fields->toArray();
|
|
while( ($p = get_parent_class($baseClass)) != "DataObject") $baseClass = $p;
|
|
|
|
// try to get the record in "default language"
|
|
$originalRecord = $this->owner->getTranslation(Translatable::default_locale());
|
|
// if no translation in "default language", fall back to first translation
|
|
if(!$originalRecord) {
|
|
$translations = $this->owner->getTranslations();
|
|
$originalRecord = ($translations) ? $translations->First() : null;
|
|
}
|
|
|
|
$isTranslationMode = $this->owner->Locale != Translatable::default_locale();
|
|
|
|
if($originalRecord && $isTranslationMode) {
|
|
$originalLangID = Session::get($this->owner->ID . '_originalLangID');
|
|
|
|
$translatableFieldNames = $this->getTranslatableFields();
|
|
$allDataFields = $fields->dataFields();
|
|
|
|
$transformation = new Translatable_Transformation($originalRecord);
|
|
|
|
// iterate through sequential list of all datafields in fieldset
|
|
// (fields are object references, so we can replace them with the translatable CompositeField)
|
|
foreach($allDataFields as $dataField) {
|
|
if($dataField instanceof HiddenField) continue;
|
|
if(in_array($dataField->Name(), $translatableFieldNames)) {
|
|
// if the field is translatable, perform transformation
|
|
$fields->replaceField($dataField->Name(), $transformation->transformFormField($dataField));
|
|
} else {
|
|
// else field shouldn't be editable in translation-mode, make readonly
|
|
$fields->replaceField($dataField->Name(), $dataField->performReadonlyTransformation());
|
|
}
|
|
}
|
|
|
|
} elseif($this->owner->isNew()) {
|
|
$fields->addFieldsToTab(
|
|
'Root',
|
|
new Tab(_t('Translatable.TRANSLATIONS', 'Translations'),
|
|
new LiteralField('SaveBeforeCreatingTranslationNote',
|
|
sprintf('<p class="message">%s</p>',
|
|
_t('Translatable.NOTICENEWPAGE', 'Please save this page before creating a translation')
|
|
)
|
|
)
|
|
)
|
|
);
|
|
}
|
|
|
|
// Show a dropdown to create a new translation.
|
|
// This action is possible both when showing the "default language"
|
|
// and a translation. Include the current locale (record might not be saved yet).
|
|
$alreadyTranslatedLangs = $this->getTranslatedLangs();
|
|
$alreadyTranslatedLangs[$this->owner->Locale] = $this->owner->Locale;
|
|
|
|
$fields->addFieldsToTab(
|
|
'Root',
|
|
new Tab(_t('Translatable.TRANSLATIONS', 'Translations'),
|
|
new HeaderField('CreateTransHeader', _t('Translatable.CREATE', 'Create new translation'), 2),
|
|
$langDropdown = new LanguageDropdownField(
|
|
"NewTransLang",
|
|
_t('Translatable.NEWLANGUAGE', 'New language'),
|
|
$alreadyTranslatedLangs,
|
|
'SiteTree',
|
|
'Locale-English'
|
|
),
|
|
$createButton = new InlineFormAction('createtranslation',_t('Translatable.CREATEBUTTON', 'Create'))
|
|
)
|
|
);
|
|
$createButton->includeDefaultJS(false);
|
|
|
|
if($alreadyTranslatedLangs) {
|
|
$fields->addFieldToTab(
|
|
'Root.Translations',
|
|
new HeaderField('ExistingTransHeader', _t('Translatable.EXISTING', 'Existing translations:'), 3)
|
|
);
|
|
$existingTransHTML = '<ul>';
|
|
foreach($alreadyTranslatedLangs as $i => $langCode) {
|
|
$existingTranslation = $this->owner->getTranslation($langCode);
|
|
if($existingTranslation) {
|
|
$existingTransHTML .= sprintf('<li><a href="%s">%s</a></li>',
|
|
sprintf('admin/show/%d/?locale=%s', $existingTranslation->ID, $langCode),
|
|
i18n::get_locale_name($langCode)
|
|
);
|
|
}
|
|
}
|
|
$existingTransHTML .= '</ul>';
|
|
$fields->addFieldToTab(
|
|
'Root.Translations',
|
|
new LiteralField('existingtrans',$existingTransHTML)
|
|
);
|
|
}
|
|
|
|
|
|
$langDropdown->addExtraClass('languageDropdown');
|
|
$createButton->addExtraClass('createTranslationButton');
|
|
}
|
|
|
|
/**
|
|
* Get the names of all translatable fields on this class
|
|
* as a numeric array.
|
|
* @todo Integrate with blacklist once branches/translatable is merged back.
|
|
*
|
|
* @return array
|
|
*/
|
|
function getTranslatableFields() {
|
|
return $this->translatableFields;
|
|
}
|
|
|
|
/**
|
|
* Return the base table - the class that directly extends DataObject.
|
|
* @return string
|
|
*/
|
|
function baseTable($stage = null) {
|
|
$tableClasses = ClassInfo::dataClassesFor($this->owner->class);
|
|
$baseClass = array_shift($tableClasses);
|
|
return (!$stage || $stage == $this->defaultStage) ? $baseClass : $baseClass . "_$stage";
|
|
}
|
|
|
|
function extendWithSuffix($table) {
|
|
return $table;
|
|
}
|
|
|
|
/**
|
|
* Gets all related translations for the current object,
|
|
* excluding itself. See {@link getTranslation()} to retrieve
|
|
* a single translated object.
|
|
*
|
|
* Getter with $stage parameter is specific to {@link Versioned} extension,
|
|
* mostly used for {@link SiteTree} subclasses.
|
|
*
|
|
* @param string $locale
|
|
* @param string $stage
|
|
* @return DataObjectSet
|
|
*/
|
|
function getTranslations($locale = null, $stage = null) {
|
|
if($this->owner->exists()) {
|
|
// HACK need to disable language filtering in augmentSQL(),
|
|
// as we purposely want to get different language
|
|
self::$enable_lang_filter = false;
|
|
|
|
$translationGroupID = $this->getTranslationGroup();
|
|
|
|
$baseDataClass = ClassInfo::baseDataClass($this->owner->class);
|
|
$filter = sprintf('"%s_translationgroups"."TranslationGroupID" = %d', $baseDataClass, $translationGroupID);
|
|
if($locale) {
|
|
$filter .= sprintf(' AND "%s"."Locale" = \'%s\'', $baseDataClass, Convert::raw2sql($locale));
|
|
} else {
|
|
// exclude the language of the current owner
|
|
$filter .= sprintf(' AND "%s"."Locale" != \'%s\'', $baseDataClass, $this->owner->Locale);
|
|
}
|
|
$join = sprintf('LEFT JOIN "%s_translationgroups" ON "%s_translationgroups"."OriginalID" = "%s"."ID"',
|
|
$baseDataClass,
|
|
$baseDataClass,
|
|
$baseDataClass
|
|
);
|
|
|
|
$currentStage = Versioned::current_stage();
|
|
if($this->owner->hasExtension("Versioned")) {
|
|
if($stage) Versioned::reading_stage($stage);
|
|
$translations = Versioned::get_by_stage($this->owner->class, Versioned::current_stage(), $filter, null, $join);
|
|
if($stage) Versioned::reading_stage($currentStage);
|
|
} else {
|
|
$translations = DataObject::get($this->owner->class, $filter, null, $join);
|
|
}
|
|
|
|
self::$enable_lang_filter = true;
|
|
|
|
return $translations;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Gets an existing translation based on the language code.
|
|
* Use {@link hasTranslation()} as a quicker alternative to check
|
|
* for an existing translation without getting the actual object.
|
|
*
|
|
* @param String $locale
|
|
* @return DataObject Translated object
|
|
*/
|
|
function getTranslation($locale, $stage = null) {
|
|
$translations = $this->getTranslations($locale, $stage);
|
|
return ($translations) ? $translations->First() : null;
|
|
}
|
|
|
|
/**
|
|
* Creates a new translation for the owner object of this decorator.
|
|
* Checks {@link getTranslation()} to return an existing translation
|
|
* instead of creating a duplicate. Writes the record to the database before
|
|
* returning it. Use this method if you want the "translation group"
|
|
* mechanism to work, meaning that an object knows which group of translations
|
|
* it belongs to. For "original records" which are not created through this
|
|
* method, the "translation group" is set in {@link onAfterWrite()}.
|
|
*
|
|
* @param string $locale
|
|
* @return DataObject The translated object
|
|
*/
|
|
function createTranslation($locale) {
|
|
if(!$this->owner->exists()) {
|
|
user_error('Translatable::createTranslation(): Please save your record before creating a translation', E_USER_ERROR);
|
|
}
|
|
|
|
$existingTranslation = $this->getTranslation($locale);
|
|
if($existingTranslation) return $existingTranslation;
|
|
|
|
$class = $this->owner->class;
|
|
$newTranslation = new $class;
|
|
|
|
// copy all fields from owner (apart from ID)
|
|
$newTranslation->update($this->owner->toMap());
|
|
|
|
// If the object has Hierarchy extension,
|
|
// check for existing translated parents and assign
|
|
// their ParentID (and overwrite any existing ParentID relations
|
|
// to parents in other language). If no parent translations exist,
|
|
// they are automatically created in onBeforeWrite()
|
|
if($newTranslation->hasField('ParentID')) {
|
|
$origParent = $this->owner->Parent();
|
|
$newTranslationParent = $origParent->getTranslation($locale);
|
|
if($newTranslationParent) $newTranslation->ParentID = $newTranslationParent->ID;
|
|
}
|
|
|
|
$newTranslation->ID = 0;
|
|
$newTranslation->Locale = $locale;
|
|
// hacky way to set an existing translation group in onAfterWrite()
|
|
$translationGroupID = $this->getTranslationGroup();
|
|
$newTranslation->_TranslationGroupID = $translationGroupID ? $translationGroupID : $this->owner->ID;
|
|
$newTranslation->write();
|
|
|
|
return $newTranslation;
|
|
}
|
|
|
|
/**
|
|
* Returns TRUE if the current record has a translation in this language.
|
|
* Use {@link getTranslation()} to get the actual translated record from
|
|
* the database.
|
|
*
|
|
* @param string $locale
|
|
* @return boolean
|
|
*/
|
|
function hasTranslation($locale) {
|
|
return (array_search($locale, $this->getTranslatedLangs()) !== false);
|
|
}
|
|
|
|
function AllChildrenIncludingDeleted($context = null) {
|
|
$children = $this->owner->doAllChildrenIncludingDeleted($context);
|
|
|
|
return $children;
|
|
}
|
|
|
|
/**
|
|
* Returns <link rel="alternate"> markup for insertion into
|
|
* a HTML4/XHTML compliant <head> section, listing all available translations
|
|
* of a page.
|
|
*
|
|
* @see http://www.w3.org/TR/html4/struct/links.html#edef-LINK
|
|
* @see http://www.w3.org/International/articles/language-tags/
|
|
*
|
|
* @return string HTML
|
|
*/
|
|
function MetaTags(&$tags) {
|
|
$template = '<link rel="alternate" type="text/html" title="%s" hreflang="%s" href="%s">' . "\n";
|
|
$translations = $this->owner->getTranslations();
|
|
if($translations) foreach($translations as $translation) {
|
|
$tags .= sprintf($template,
|
|
$translation->Title,
|
|
i18n::convert_rfc1766($translation->Locale),
|
|
$translation->Link()
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get a list of languages with at least one element translated in (including the default language)
|
|
*
|
|
* @param string $className Look for languages in elements of this class
|
|
* @return array Map of languages in the form locale => langName
|
|
*/
|
|
static function get_existing_content_languages($className = 'SiteTree', $where = '') {
|
|
$baseTable = ClassInfo::baseDataClass($className);
|
|
$query = new SQLQuery('Distinct Locale',$baseTable,$where,"",'Locale');
|
|
$dbLangs = $query->execute()->column();
|
|
$langlist = array_merge((array)Translatable::default_locale(), (array)$dbLangs);
|
|
$returnMap = array();
|
|
$allCodes = array_merge(i18n::$all_locales, i18n::$common_locales);
|
|
foreach ($langlist as $langCode) {
|
|
if($langCode && isset($allCodes[$langCode])) {
|
|
$returnMap[$langCode] = (is_array($allCodes[$langCode])) ? $allCodes[$langCode][0] : $allCodes[$langCode];
|
|
}
|
|
}
|
|
return $returnMap;
|
|
}
|
|
|
|
/**
|
|
* Gets a URLSegment value for a homepage in another language.
|
|
* The value is inferred by finding the homepage in default language
|
|
* (as identified by RootURLController::$default_homepage_urlsegment).
|
|
* Returns NULL if no translated page can be found.
|
|
*
|
|
* @param string $locale
|
|
* @return string|boolean URLSegment (e.g. "home")
|
|
*/
|
|
static function get_homepage_urlsegment_by_locale($locale) {
|
|
$origHomepageObj = Translatable::get_one_by_locale(
|
|
'SiteTree',
|
|
Translatable::default_locale(),
|
|
sprintf('"URLSegment" = \'%s\'', RootUrlController::get_default_homepage_urlsegment())
|
|
);
|
|
if($origHomepageObj) {
|
|
$translatedHomepageObj = $origHomepageObj->getTranslation($locale);
|
|
if($translatedHomepageObj) {
|
|
return $translatedHomepageObj->URLSegment;
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* @deprecated 2.4 Use get_homepage_urlsegment_by_locale()
|
|
*/
|
|
static function get_homepage_urlsegment_by_language($locale) {
|
|
return self::get_homepage_urlsegment_by_locale($locale);
|
|
}
|
|
|
|
/**
|
|
* @deprecated 2.4 Use custom check: self::$default_locale == self::current_locale()
|
|
*/
|
|
static function is_default_lang() {
|
|
return (self::$default_locale == self::current_locale());
|
|
}
|
|
|
|
/**
|
|
* @deprecated 2.4 Use set_default_locale()
|
|
*/
|
|
static function set_default_lang($lang) {
|
|
self::set_default_locale(i18n::get_locale_from_lang($lang));
|
|
}
|
|
|
|
/**
|
|
* @deprecated 2.4 Use get_default_locale()
|
|
*/
|
|
static function get_default_lang() {
|
|
return i18n::get_lang_from_locale(self::default_locale());
|
|
}
|
|
|
|
/**
|
|
* @deprecated 2.4 Use current_locale()
|
|
*/
|
|
static function current_lang() {
|
|
return i18n::get_lang_from_locale(self::current_locale());
|
|
}
|
|
|
|
/**
|
|
* @deprecated 2.4 Use set_reading_locale()
|
|
*/
|
|
static function set_reading_lang($lang) {
|
|
self::set_reading_locale(i18n::get_locale_from_lang($lang));
|
|
}
|
|
|
|
/**
|
|
* @deprecated 2.4 Use get_reading_locale()
|
|
*/
|
|
static function get_reading_lang() {
|
|
return i18n::get_lang_from_locale(self::get_reading_locale());
|
|
}
|
|
|
|
/**
|
|
* @deprecated 2.4 Use default_locale()
|
|
*/
|
|
static function default_lang() {
|
|
return i18n::get_lang_from_locale(self::default_locale());
|
|
}
|
|
|
|
/**
|
|
* @deprecated 2.4 Use get_by_locale()
|
|
*/
|
|
static function get_by_lang($class, $lang, $filter = '', $sort = '', $join = "", $limit = "", $containerClass = "DataObjectSet", $having = "") {
|
|
return self::get_by_locale($class, i18n::get_locale_from_lang($lang), $filter, $sort, $join, $limit, $containerClass, $having);
|
|
}
|
|
|
|
/**
|
|
* @deprecated 2.4 Use get_one_by_locale()
|
|
*/
|
|
static function get_one_by_lang($class, $lang, $filter = '', $cache = false, $orderby = "") {
|
|
return self::get_one_by_locale($class, i18n::get_locale_from_lang($lang), $filter, $cache, $orderby);
|
|
}
|
|
|
|
/**
|
|
* Determines if the record has a locale,
|
|
* and if this locale is different from the "default locale"
|
|
* set in {@link Translatable::default_locale()}.
|
|
* Does not look at translation groups to see if the record
|
|
* is based on another record.
|
|
*
|
|
* @return boolean
|
|
* @deprecated 2.4
|
|
*/
|
|
function isTranslation() {
|
|
return ($this->owner->Locale && ($this->owner->Locale != Translatable::default_locale()));
|
|
}
|
|
|
|
/**
|
|
* @deprecated 2.4 Use choose_site_locale()
|
|
*/
|
|
static function choose_site_lang($langsAvail=null) {
|
|
return self::choose_site_locale($langAvail);
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* Transform a formfield to a "translatable" representation,
|
|
* consisting of the original formfield plus a readonly-version
|
|
* of the original value, wrapped in a CompositeField.
|
|
*
|
|
* @param DataObject $original Needs the original record as we populate the readonly formfield with the original value
|
|
*
|
|
* @package sapphire
|
|
* @subpackage misc
|
|
*/
|
|
class Translatable_Transformation extends FormTransformation {
|
|
|
|
/**
|
|
* @var DataObject
|
|
*/
|
|
private $original = null;
|
|
|
|
function __construct(DataObject $original) {
|
|
$this->original = $original;
|
|
parent::__construct();
|
|
}
|
|
|
|
/**
|
|
* Returns the original DataObject attached to the Transformation
|
|
*
|
|
* @return DataObject
|
|
*/
|
|
function getOriginal() {
|
|
return $this->original;
|
|
}
|
|
|
|
/**
|
|
* @todo transformTextareaField() not used at the moment
|
|
*/
|
|
function transformTextareaField(TextareaField $field) {
|
|
$nonEditableField = new ToggleField($fieldname,$field->Title(),'','+','-');
|
|
$nonEditableField->labelMore = '+';
|
|
$nonEditableField->labelLess = '-';
|
|
return $this->baseTransform($nonEditableField, $field);
|
|
|
|
return $nonEditableField;
|
|
}
|
|
|
|
function transformFormField(FormField $field) {
|
|
$newfield = $field->performReadOnlyTransformation();
|
|
return $this->baseTransform($newfield, $field);
|
|
}
|
|
|
|
protected function baseTransform($nonEditableField, $originalField) {
|
|
$fieldname = $originalField->Name();
|
|
|
|
$nonEditableField_holder = new CompositeField($nonEditableField);
|
|
$nonEditableField_holder->setName($fieldname.'_holder');
|
|
$nonEditableField_holder->addExtraClass('originallang_holder');
|
|
$nonEditableField->setValue($this->original->$fieldname);
|
|
$nonEditableField->setName($fieldname.'_original');
|
|
$nonEditableField->addExtraClass('originallang');
|
|
$nonEditableField->setTitle('Original '.$originalField->Title());
|
|
|
|
$nonEditableField_holder->insertBefore($originalField, $fieldname.'_original');
|
|
return $nonEditableField_holder;
|
|
}
|
|
|
|
|
|
}
|
|
|
|
?>
|