from method

@protected JoinedSelectStatement<HasResultSet, dynamic> from(Table table)

This method should be called on select to define the main table of this view:

abstract class CategoryTodoCount extends View {
  TodosTable get todos;
  Categories get categories;

  Expression<int> get itemCount => todos.id.count();

  @override
  Query as() => select([categories.description, itemCount])
      .from(categories)
      .join([innerJoin(todos, todos.category.equalsExp(categories.id))]);
}

Implementation

@protected
JoinedSelectStatement from(Table table) => _isGenerated();