How to Generate map from class - flutter

Question

I have an events class thats like this
MyEvents(id: 5a9c120ab3473,
title: "Event 1",
description: "",
image: "",
isDone false,
classDate: 2019-08-23 00:00:00.000)
I'm getting a list from a database but i cant figure out how to turn it into this format for a calendar package (there could be multiple events on each day)
Map<DateTime, List<Map<String, Object>>> _events2 = {
DateTime(2019, 8, 24): [
{'name': 'Event A', 'isDone': true},
],
DateTime(2019, 8, 24): [
{'name': 'Event A', 'isDone': true},
],
DateTime(2019, 8, 23): [
{'name': 'Event A', 'isDone': true},
],
};
I've tried this, not sure if I'm on the right track or totally lost
events.map((c) {
print(c.title);
item = {
c.classDate: [
{'name': c.title, 'isDone': true},
]
};
mainList.add(item);
}).toList();

Answer 1

You can add a method in your class like this:
Map<String, dynamic> toJson() {
final Map<String, dynamic> data = new Map<String, dynamic>();
data['title'] = this.title;
data['description'] = this.description;
data['image'] = this.image;
data['isDone'] = this.isDone;
data['classDate'] = this.classDate;
return data;
}

Answer 2

Found this solution
turned out to be exactly what i needed
events.map((c) {
print(c.title);
item = {'name': c.title, 'isDone': true, "class_date": c.classDate};
mainList.add(item);
}).toList();
print("collection");
var c = Collection(mainList.toList());
var result = c
.groupBy$1((e) => e["class_date"],
(e) => {"name": e["name"], "isDone": e["isDone"]})
.toDictionary$1((e) => e.key, (e) => e.toList());