cake3 NGワード設定

前提・実現したいこと

・登録フォームを用意(対象のinputはnameとかで)
・ng_wordテーブルに設定した言葉をバリデーションしたい

1.テーブルに単語を登録
2.ControllerのinitializeでTableRegistｒｙを使用してng_wordEntityを取得
3.Actionで $this->set('ngword', $this->ngwords->find())

Controller

public function register($lang = null)
    {
        $lang = ($lang === null) ? 'ja' : $lang;
        $dataMaster = new DataMaster();
        $this->set('Countries', $dataMaster->getAllCountries($lang));
        $this->set('Languages', $dataMaster->getAllLanguages($lang));
        $this->set('Genders', $dataMaster->getAllGenders($lang));
        if ($lang === 'ja') {
            $this->set('Prefectures', $dataMaster->getAllPrefectures($lang));
        }else{
            $this->set('Prefectures', false);
        }

        $member = $this->Member->newEntity();
        if ($this->request->is('post')) {
            $member = $this->Member->newEntity($this->request->data, [
                'associated' => ['MemberDetail']
                ]);
            if ($member->errors()){
                $this->Flash->error(__('The member could not be saved. Please, try again.'));
            }
            if ($this->Member->save($member)) {
                $this->Flash->success(__('The member has been saved.'));
                return $this->redirect(['action' => 'login']);
            }
        }
        $this->set(compact('member'));
        $this->set('_serialize', ['member']);
    }

$ngWords = $this->ngwords->find();
        foreach ($ngWords as $row){
            $word[] = $row->word;
        }
        $this->set('ngwords', $word);

Table

public function validationDefault(Validator $validator)
    {
        $validator
            ->allowEmpty('id', 'create');

        $validator
            ->allowEmpty('nickname')
            ->add('nickname', [
                'ngword' => [
                    'rule' => function($value, $context){
                        return !TableRegistry::get('ng_word')->exists(["'{$value}' LIKE concat('%', word, '%')"]);
                    },
                    'massage' => '「おなまえ」に不適切な語句が含まれています'
                ]
            ]);

        $validator
            ->integer('gender')
            ->notEmpty('gender');

        $validator
            ->date('birthday')
            ->allowEmpty('birthday');

        $validator
            ->integer('country')
            ->allowEmpty('country');

        $validator
            ->integer('prefecture')
            ->allowEmpty('prefecture');

        $validator
            ->integer('language')
            ->allowEmpty('language');

        $validator
            ->allowEmpty('created_by');

        $validator
            ->dateTime('created_at');

        $validator
            ->allowEmpty('updated_by');

        $validator
            ->dateTime('updated_at');

        return $validator;
    }

Template

<div class="member form large-9 medium-8 columns content">
    <?= $this->Form->create($member) ?>
    <fieldset>
        <legend><?= __('新規会員登録') ?></legend>
        <p>全項目入力して下さい</p>
        <?php
            echo $this->Form->input('member_detail.0.nickname', ['label' => __('なまえ')]);
            echo $this->Form->input('member_detail.0.gender', ['label' => __('性別'), 'type' => 'radio', 'options' => $Genders]);
            echo $this->Form->input('member_detail.0.birthday', ['label' => __('生年月日'), 'type' => 'date', 'dateFormat' => 'YMD', 'monthNames' => false, 'maxYear' => date('Y'), 'minYear' => 1850, 'empty' => '---']);
            echo $this->Form->input('member_detail.0.country', ['label' => __('国籍'), 'type' => 'select', 'options' => $Countries]);
            if ($Prefectures) {
                echo $this->Form->input('member_detail.0.prefecture',
                    ['label' => __('都道府県'), 'type' => 'select', 'options' => $Prefectures]);
            }
            echo $this->Form->input('member_detail.0.language', ['label' => __('言語'), 'type' => 'select', 'options' => $Languages]);
            echo $this->Form->input('mail_address', ['label' => __('メールアドレス'), 'type' => 'email']);
            echo $this->Form->input('login_id', ['label' => __('ログインID'), 'type' => 'text']);
            echo $this->Form->input('login_password', ['label' => __('パスワード'), 'type' => 'password']);
            echo $this->Form->hidden('is_active', ['default' => 1]);
            echo $this->Form->hidden('is_deleted', ['default' => 0]);
        ?>
    </fieldset>
    <?= $this->Form->button(__('確認')) ?>
    <?= $this->Form->end() ?>
</div>

ここからどうして良いか分かりません。

カスタムバリデーションの作成や取得したデータをそこに反映させる方法等・・

補足情報(言語/FW/ツール等のバージョンなど)

php7.1.1 / cake PHP3.3.12/