CakePHP 3.0.8 翻译行为和数据验证(requirePresence，notEmpty)

问题描述

我的问题很简单，但我不知道如何解决.

My problem is simple, yet I can't figure out how to solve it.

我的网站是多语言的.我希望用户能够根据需要添加多种语言的文章，同时要求输入他的语言(取决于他的语言环境).

My website is multilanguage. I want the user to be able to add an article in multiple language if he wants, while requiring the inputs of his language (depending on his locale).

问题是，根据 CakePHP 的翻译约定，所有输入都必须以字段名称结尾，无论是什么语言.因此，所有字段对同一字段具有相同的规则.我不能要求一个名字"，而不需要另一种语言的另一个.

Problem is, with CakePHP's conventions about translation, all the inputs must end with the field's name, no matter what language. So all the fields has the same rule for the same field. I can't make one "name" required while another in another language not required.

例如，默认语言的输入是:

For example, the default language's input would be:

<input type="text" name="name" required="required" maxlength="45" id="name">

在此之下，同一字段的另一种语言输入:

And below that, another language's input for the same field:

<input type="text" name="locales[fr_CA][name]" required="required" maxlength="45" id="locales-fr-ca-name">

由于这些规则，required"属性会自动添加到两者中:

The "required" attribute is automatically added to both because of these rules:

$validator
    ->requirePresence('name', 'create')
    ->notEmpty('name')
    ->add('name', [
        'length' => [
            'rule' => ['minLength', 10],
            'message' => 'The title needs to be at least 10 characters long.',
        ]
    ]);

注意:我必须在保存时将区域设置更改为默认 (en_US) 才能保存为多种语言 + 默认语言(否则默认输入会保存在默认表和 i18n 表中).

Note: I have to change the locale to the default (en_US) when I save to be able to save in multiple languages + the default language (otherwise the default inputs are saved in the default table AND in the i18n table).

if ($this->request->is('post')) {
    I18n::locale('en_US');
    // ......

这是我保存时的完整代码段 (IngredientsController.php)

So here's the complete piece of code when I save (IngredientsController.php)

public function add() {
    $ingredient = $this->Ingredients->newEntity();
    if ($this->request->is('post')) {
        $ingredient = $this->Ingredients->patchEntity($ingredient, $this->request->data);

        if(isset($this->request->data['locales'])) {
            foreach ($this->request->data['locales'] as $lang => $data) {
                $ingredient->translation($lang)->set($data, ['guard' => false]);
            }
        }

        $locale = I18n::locale(); // At this point the locale is fr_CA (not de default)
        I18n::locale('en_US'); // Change the locale to the default

        if ($this->Ingredients->save($ingredient)) {
            $this->Flash->success(__('The ingredient has been saved.'));
            I18n::locale($locale); // Put the locale back to the user's locale
            return $this->redirect(['action' => 'index']);
        } else {
            I18n::locale($locale);
            $this->Flash->error(__('The ingredient could not be saved. Please, try again.'));
        }
    }

    $this->set(compact('ingredient'));
    $this->set('_serialize', ['ingredient']);
}

我设置的默认语言环境是 bootstrap.php

I set the default locale is the bootstrap.php

/**
 * Set the default locale. This controls how dates, number and currency is
 * formatted and sets the default language to use for translations.
 */
ini_set('intl.default_locale', 'en_US');
Configure::write('Config.locales', ['fr_CA']);

我在 AppController.php 中确定用户的语言环境

I determine the user's locale in the AppController.php

public function beforeFilter(Event $event)
{
    $locales = Configure::read('Config.locales');
    $boom = explode(',', str_replace('-', '_', $_SERVER['HTTP_ACCEPT_LANGUAGE']));
    $user_lang = substr($boom[0], 0, 2);

    // This piece of code is only to change the locale to fr_CA even if the user's language is just fr or fr_FR
    if(in_array($user_lang, Configure::read('Config.langs'))) {
        if(in_array($boom[0], $locales)) {
            I18n::locale($boom[0]);
        } else {
            foreach ($locales as $locale) {
                if(substr($locale, 0, 2) == $user_lang) {
                    I18n::locale($locale);
                }
            }
        }
    }

    $this->set('locales', $locales);
    $this->set('locale', I18n::locale());
}

因此，如果我在与默认语言不同的语言环境中保存，则相同的默认输入将保存在 fr_CA 的成分表和 i18n 表中

So if I save while being in a different locale than the default, the same default inputs will be saved in the ingredients table AND in the i18n table in fr_CA

推荐答案

默认保存在转换表中

默认语言的输入被存储在翻译表中，以防默认语言环境发生变化，这一事实似乎是预期的行为，就像读取数据时，它将检索关于当前语言环境，保存数据时同样适用.

Defaults saved in translation table

The fact that the input for the default language is being stored in the translation table in case the default locale has been changed, seems to be the expected behavior, just like when reading data where it will retrieve the data with respect to the current locale, the same applies when saving data.

食谱 > 数据库访问&ORM > 行为 > 翻译 > 用另一种语言保存

将区域设置更改为默认设置是一种解决方法，但它可能有点过于具有侵入性，因为它会干扰使用该值检查当前区域设置的任何代码.最好直接在表上设置想要的locale

Changing the locale to the default is a workaround, but it might be a little too invasive, as it will interfer with any code that uses that value to check the current locale. It's better to directly set the desired locale on the table

$Ingredients->locale(I18n::defaultLocale());

或者，这是侵入性最小的选项，改为在主实体上

or, which is the least invasive option, on the main entity instead

$ingredient->_locale = I18n::defaultLocale();

同样，前者是链接文档部分所描述的，但实际上并未显示，需要修复.

Also the former is what the linked docs sesction is describing, but not actually showing, that needs to be fixed.

虽然我可以理解为什么表单助手(分别是实体上下文)为错误"字段选择验证规则，即 xyz.name 字段为name<选择这些规则/code> 字段，我不知道这是否是它的工作方式.

echo $this->Form->input('locales.fr_CA.name', [
    // ...
    'required' => false
]);

namespace AppModelTable;

use CakeDatasourceEntityInterface;
use CakeORMRulesChecker;
use CakeORMTable;
use CakeValidationValidator;

class IngredientsI18nTable extends Table
{
    public function initialize(array $config) {
        $this->entityClass('Ingredient');
        $this->table('i18n');
        $this->displayField('id');
        $this->primaryKey('id');
    }

    public function validationDefault(Validator $validator) {

        $validator
            ->allowEmpty('name')
            ->add('name', 'valid', [
                'rule' => function ($value, $context) {
                    return false;
                }
            ]);
        return $validator;
    }

    public function buildRules(RulesChecker $rules)
    {
        $rules->add(
            function (EntityInterface $entity, $options) {
                return false;
            },
            'i18nName',
            [
                'errorField' => 'name'
            ]
        );

        return $rules;
    }
}

public function initialize(array $config) {
    // ...

    $this->addBehavior('Translate', [
        // ...
        'translationTable' => 'IngredientsI18n'
    ]);
}

echo $this->Form->hidden('_i18n.0.locale', ['value' => 'fr_FR']);
echo $this->Form->input('_i18n.0.name');

echo $this->Form->hidden('_i18n.1.locale', ['value' => 'da_DK']);
echo $this->Form->input('_i18n.1.name');

// ...

foreach ($this->request->data['_i18n'] as $translation) {
    $ingredient->translation($translation['locale'])->set('name', $translation['name']);
}