I used gii to create my crud, and I have been handling the data, I have relationated 2 tables, and at the time of modifying I have not had problems, the problem appears when I want to create data, since I get the error getActiveValidators () On null, I leave the code I use to display data from the related tables, since I modify the form ‘_form’ for that purpose. to update:
<div class="subcategoria-form">
<?php $form = ActiveForm::begin(); ?>
<!--This is the code of the related table, subcategory-> category-> name-->
<?= $form->field($model->categoria, 'nombre')->textInput(['maxlength' => true]) ?>
<?= $form->field($model, 'nombre')->textInput(['maxlength' => true]) ?>
<!-- <?= $form->field($model, 'categoria_id')->textInput() ?>
<?= $form->field($model, 'nivel')->textInput() ?>
<?= $form->field($model, 'padre_id')->textInput() ?>
<?= $form->field($model, 'updated_at')->textInput() ?>
<?= $form->field($model, 'created_at')->textInput(['maxlength' => true]) ?>-->
<div class="form-group">
<?= Html::submitButton($model->isNewRecord ? Yii::t('app', 'Crear') : Yii::t('app', 'Modificar'), ['class' => $model->isNewRecord ? 'btn btn-success' : 'btn btn-primary']) ?>
</div>
no problems,But the "create" generates the problem, What could it be?