Generating CRUD with via() and many-to-many relations gives an exception.

[KevinVanH]

In the following line

yii2-giiant/src/generators/crud/default/views/view.php

Line 161 in 0b063fd

$pivotName = Inflector::pluralize($generator->getModelByTableName($relation->via->from[0]));

it tries to access $relation->via->from[0]. However, this does not exist. Via is an array with keys 0, 1, 2 as shown below. The following error is thrown when generating the CRUD:

PHP Warning 'yii\base\ErrorException' with message 'Attempt to read property "from" on array'

$relation->via looks like this:

It seems like this happens only with many-to-many relations when using via(). (JUNCTION_RELATION_VIA_MODEL)

Changing $relation->via->from[0] to $relation->via->from[0] ?? $relation->via[0] seems to fix it, but I'm not sure if this is correct.

Giiant 0.15.0-beta2
Yii2 2.0.49.2