Django Folium Marker - django

Question

I am newbie and I am making a map visualization in Django. I will use both heatmap and marker on my website. If I add 'user_report__date' in the df there is an error ufunc 'isnan' not supported for the input types, and the inputs could not be safely coerced to any supported types according to the casting rule ''safe''.
How can I add date in df so that I can use heatmaptime of folium. Thanks
Views
def index(request):
df = pd.DataFrame(IncidentGeneral.objects.values('user_report__latitude', 'user_report__longitude', 'accident_factor'))
# coordenadas = list(IncidentGeneral.objects.values_list('user_report__latitude','user_report__longitude'))[-1]
map1 = folium.Map(location=[14.676208, 121.043861],
zoom_start=12)
# df = df.dropna(axis=0, subset=['user_report__latitude', 'user_report__longitude', 'accident_factor', 'user_report__date'])
# mapquestopen
fg=folium.FeatureGroup(name='Marker Cluster', show=False)
map1.add_child(fg)
fg2=folium.FeatureGroup(name='Heat Map', show=True)
map1.add_child(fg2)
fg3=folium.FeatureGroup(name='Map with Markers', show=False)
map1.add_child(fg3)
plugins.HeatMap(df).add_to(fg2)
FastMarkerCluster(data=df.values.tolist()).add_to(fg)
# marker_cluster = MarkerCluster().add_to(fg)
folium.TileLayer(('openstreetmap'), attr='openstreetmap').add_to(map1)
# folium.TileLayer('mapquestopen', attr='mapquestopen').add_to(map1)
# folium.TileLayer('MapQuest Open Aerial', attr='MapQuest Open Aerial').add_to(map1)
folium.TileLayer('cartodbpositron', attr='cartodbpositron').add_to(map1)
folium.TileLayer('cartodbdark_matter', attr='cartodbdark_matter').add_to(map1)
plugins.Fullscreen(position='topright').add_to(map1)
folium.LayerControl().add_to(map1)
for id,row in df.iterrows():
folium.Marker(location=[row['user_report__latitude'],row['user_report__longitude']], popup=row['accident_factor']).add_to(fg3)
# folium.Marker(coordenadas).add_to(map1)
# df['user_report__date'] = df['user_report__date'].sort_values(ascending=True)
# data = []
# for _, d in df.groupby('user_report__date'):
# data.append([[row['user_report__latitude'], row['user_report__longitude'], row['accident_factor']] for _, row in d.iterrows()])
map1 = map1._repr_html_()
context = {
'map1': map1
}
return render(request, 'index.html', context)
Models
class IncidentGeneral(models.Model):
user = models.ForeignKey(User, on_delete=models.CASCADE, editable=False, null=True, blank=True)
user_report = models.OneToOneField(UserReport, on_delete=models.CASCADE)
accident_factor = models.ForeignKey(AccidentCausation, on_delete=models.SET_NULL, blank=True, null=True)
accident_subcategory = models.ForeignKey(AccidentCausationSub, on_delete=models.SET_NULL, blank=True, null=True)
collision_type = models.ForeignKey(CollisionType, on_delete=models.SET_NULL, blank=True, null=True)
collision_subcategory = models.ForeignKey(CollisionTypeSub, on_delete=models.SET_NULL, blank=True, null=True)
crash_type = models.ForeignKey(CrashType, on_delete=models.SET_NULL, blank=True, null=True)
weather = models.PositiveSmallIntegerField(choices=WEATHER, blank=True, null=True)
light = models.PositiveSmallIntegerField(choices=LIGHT, blank=True, null=True)
severity = models.PositiveSmallIntegerField(choices=SEVERITY, blank=True, null=True)
movement_code = models.CharField(max_length=250, blank=True)
created_at = models.DateTimeField(auto_now_add=True)
updated_at = models.DateTimeField(auto_now=True)
class UserReport(models.Model):
PENDING = 1
APPROVED = 2
REJECTED = 3
STATUS = (
(PENDING, 'Pending'),
(APPROVED, 'Approved'),
(REJECTED, 'Rejected')
)
user = models.ForeignKey(User, on_delete=models.CASCADE, null=True)
description = models.TextField(max_length=250, blank=True)
address = models.CharField(max_length=250)
country = models.CharField(max_length=50, blank=True, null=True)
state = models.CharField(max_length=50, blank=True, null=True)
city = models.CharField(max_length=50, blank=True, null=True)
pin_code = models.CharField(max_length=6, blank=True, null=True)
latitude = models.FloatField(max_length=20, blank=True, null=True)
longitude = models.FloatField(max_length=20, blank=True, null=True)
upload_photovideo = models.FileField(upload_to='incident_report/image', blank=True, null=True)
date = models.DateField(auto_now_add=False, auto_now=False, blank=True, null=True)
time = models.TimeField(auto_now_add=False, auto_now=False, blank=True, null=True)
status = models.PositiveSmallIntegerField(choices=STATUS, blank=True, null=True)
created_at = models.DateTimeField(auto_now_add=True)
updated_at = models.DateTimeField(auto_now=True)
def get_status(self):
if self.status == 1:
incident_status = 'Pending'
elif self.status == 2:
incident_status = 'Approved'
elif self.status == 3:
incident_status = 'Rejected'
return incident_status
def save(self, *args, **kwargs):
super(UserReport, self).save(*args, **kwargs)
if self.upload_photovideo:
if ".jpg" in self.upload_photovideo.url or ".png" in self.upload_photovideo.url:
#check if image exists before resize
img = Image.open(self.upload_photovideo.path)
if img.height > 1080 or img.width > 1920:
new_height = 720
new_width = int(new_height / img.height * img.width)
img = img.resize((new_width, new_height))
img.save(self.upload_photovideo.path)