import TravelProduct from '../../TravelProduct/entity/TravelProduct';

export default class EventProduct extends TravelProduct {
  protected _from_date: string = null;
  protected _to_date: string = null;
  
  get from_date(): string {
    return this._from_date;
  }
  
  set from_date(value: string) {
    this._from_date = value;
  }
  
  get to_date(): string {
    return this._to_date;
  }
  
  set to_date(value: string) {
    this._to_date = value;
  }
  
  invalidFields(prefix: string = '') {
    let fields = super.invalidFields(prefix);
    
    !this.hasValue(this.from_date) && fields.push(`${prefix}from_date`);
    !this.hasValue(this.to_date) && fields.push(`${prefix}to_date`);
    
    return fields;
  }
}