filterBreweries() {
    if (this.numberOfViewsFilter && this.breweryNameFilter) {
        this.breweryListQueryRef = this.db.collection('breweries').where('views', '>=', this.numberOfViewsFilter).where('name', '==', this.breweryNameFilter);
    }
    else if (this.numberOfViewsFilter) {
        this.breweryListQueryRef = this.db.collection('breweries').where('views', '>=', this.numberOfViewsFilter);
    }
    else if (this.breweryNameFilter) {
        this.breweryListQueryRef = this.db.collection('breweries').where('name', '==', this.breweryNameFilter);
    }
    else {
        this.breweryListQueryRef = this.db.collection('breweries');
    }
    this.listenToRefSnapshot();
}