@if (expression()) {
  <div class="w-full h-full">
    <ngm-editor-sql #editor class="w-full h-full"
      [ngModel]="expression()"
      (ngModelChange)="changeExpression($event)"
    />
  </div>
} @else {
  <pac-model-er class="w-full h-full" tabindex="0" />
}