FeatureGroupSubGroup: nth level subgroups

[kasbah512]

Describe the bug
I am using quite a few levels of recursion to generate a map that has subgroups within subgroups, and im not sure how to fix the issue, or if there is a better method.

To Reproduce
theres alot going on here... the repeated for loops are to keep the buttons ordered by hierarchy.

import folium
from folium import plugins

#####################################################################################
coord = df['Location'].apply(fetch_lat_lon)
df['Lat'] = coord.apply(lambda x: x[0] if isinstance(x, tuple) else None)
df['Long'] = coord.apply(lambda x: x[1] if isinstance(x, tuple) else None)

df['Result'] = (~df['Impounded'].isna().astype(int)).apply(lambda x: _results[x])
df['Interval'] = (datetime.now() - df.index).days
df['Weekday'] = df.index.weekday.map(lambda x: _days[x])
df['Time'] = df.index.hour

df = df[~df['ID'].isna()]                                                           
#####################################################################################
m = folium.Map(location=[0, 0], zoom_start=14)


results = {}
intervals = {}
days = {}
times = {}

_results = ['Complete', 'Canceled']
_intervals = [7, 30, 90, 365] ## days before now
_days = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday']
_times = range(24)

for result in _results:

    results[result] = folium.FeatureGroup(name = result)
    m.add_child(results[result])

for result in _results:
    for interval in _intervals: 

        intervals[f'{result}_{interval}'] = plugins.FeatureGroupSubGroup(results[result], f'{interval} Days')
        m.add_child(intervals[f'{result}_{interval}'])

for result in _results:
    for interval in _intervals: ## days before now
        for day in _days:

            days[f'{result}_{interval}_{day}'] = plugins.FeatureGroupSubGroup(intervals[f'{result}_{interval}'], day)
            m.add_child(days[f'{result}_{interval}_{day}'])

for result in _results:
    for interval in _intervals: ## days before now
        for day in _days:
            for time in _times:
                
                if time < 12:
                    if time !=0:
                        times[f'{result}_{interval}_{day}_{time}'] = plugins.FeatureGroupSubGroup(days[f'{result}_{interval}_{day}'], f'{time} AM')
                        m.add_child(times[f'{result}_{interval}_{day}_{time}'])
                    else: 
                        times[f'{result}_{interval}_{day}_{time}'] = plugins.FeatureGroupSubGroup(days[f'{result}_{interval}_{day}'], f'{time + 12} AM')
                        m.add_child(times[f'{result}_{interval}_{day}_{time}'])
                elif time > 12:
                    times[f'{result}_{interval}_{day}_{time}'] = plugins.FeatureGroupSubGroup(days[f'{result}_{interval}_{day}'], f'{time - 12} PM')
                    m.add_child(times[f'{result}_{interval}_{day}_{time}'])
                else:
                    times[f'{result}_{interval}_{day}_{time}'] = plugins.FeatureGroupSubGroup(days[f'{result}_{interval}_{day}'], f'{time} PM')
                    m.add_child(times[f'{result}_{interval}_{day}_{time}'])

for result in _results:
    for interval in _intervals: ## days before now
        for day in _days:
            for time in _times:

                group = times[f'{result}_{interval}_{day}_{time}']

                condition = ((df['Result'] == result) &
                             (df['Interval'] <= interval) &
                             (df['Weekday'] == day) &
                             (df['Time'] == time)
                )

                _df = df[condition].dropna()

                for i in range(len(_df)):
                    lat = _df['Lat'].iloc[i] - _df['Lat'].mean()
                    long = _df['Long'].iloc[i] - _df['Long'].mean()

                    folium.Marker([lat, long]).add_to(group)
            
folium.LayerControl(collapsed=True).add_to(m)

m.save('TESTING.html')

Expected behavior
When all button conditions are met, points will display,

Environment (please complete the following information):

• chrome
• jupyter notebooks
• vs code

[Conengmo]

Could you share a minimal, reproducible example? I can't run this because I don't have your data. Please also strip anything not necessary to show the issue, make it as simple and small as possible.

Also note that Folium simply wraps the Leaflet.FeatureGroup.SubGroup plugin, so it's likely that here in Folium there's not much we can do to help with any issues using this class. If you look at their documentation, it seems there's no further options we can use anyway, so it might be that what you are trying to do is simply unsupported. https://github.com/ghybs/Leaflet.FeatureGroup.SubGroup