How to store and use opening hour information in flutter firebase? - list

Question

I am building an app in flutter which requires the storage of opening hours in firebase. I have decided to store the data in this format:
0: [9,17], //Monday
1: Null, //Tuesday
Etc Etc. The openingHours field is a list of map values. The key corresponds to the day, then the hours are the value, being a list of integers if open, or a null value if closed. I am struggling however to take the list from the json file from firebase and store it in a list of maps value in flutter, in a class called "business", and similarly upload the data to flutter.
The business object looks like this:
class Business{
String businessId;
String name;
String photoUrl;
Map<int, List<int>> openingHours;
CommentModel({
this.name,
this.businessId,
this.photoUrl,
this.openingHours
});
CommentModel.fromJson(Map<String, dynamic> json) {
name = json['name'];
businessId = json['businessId'];
photoUrl = json['photoUrl'];
openingHours = json['openingHours'];
}
Map<String, dynamic> toJson() {
final Map<String, dynamic> data = new Map<String, dynamic>();
data['name'] = this.name;
data['businessId'] = this.businessId;
data['photoUrl'] = this.photoUrl;
data['openingHours'] = this.openingHours;
return data;
}
}
I am pretty aware I'm quite far off the mark with this one and would appreciate any help before I fully try and implement this into my currently working elsewhere design and cause some irreversible damage XD.

Answer 1

0: {"open": "7:00","close: "20:00"}
1: null,
2: {"open": "7:00","close: "20:00"}