push @errors, t8('Employee must not be empty.') if !$self->employee_id;
push @errors, t8('Description must not be empty.') if !$self->description;
push @errors, t8('Start time must be earlier than end time.') if $self->is_time_in_wrong_order;
- push @errors, t8('Assigned order must be a sales order.') if $self->order_id && 'sales_order' eq !$self->order->type;
+ push @errors, t8('Assigned order must be a sales order.') if $self->order_id && 'sales_order' ne $self->order->type;
push @errors, t8('Customer of assigned order must match customer.') if $self->order_id && $self->order->customer_id != $self->customer_id;
push @errors, t8('Customer of assigned project must match customer.') if $self->project_id && $self->project->customer_id && $self->project->customer_id != $self->customer_id;
push @errors, t8('Project of assigned order must match assigned project.')