class ImageFormMixin(EntangledModelFormMixin):
image_file = AdminImageFormField(
ManyToOneRel(FilerImageField, Image, 'file_ptr'),
Image.objects.all(),
to_field_name='image_file',
label=_("Image"),
)
image_title = CharField(
label=_('Image Title'),
required=False,
help_text=_("Caption text added to the 'title' attribute of the <img> element."),
)
alt_tag = CharField(
label=_('Alternative Description'),
required=False,
help_text=_("Textual description of the image added to the 'alt' tag of the <img> element."),
)
_image_properties = EntangledField()
class Meta:
entangled_fields = {'glossary': ['image_file', 'image_title', 'alt_tag', '_image_properties']}
def clean(self):
cleaned_data = super().clean()
image_file = cleaned_data.get('image_file')
if not image_file:
raise ValidationError(_("No image has been selected."))
# _image_properties are just a cached representation, maybe useless
cleaned_data['_image_properties'] = {
'width': image_file._width,
'height': image_file._height,
'exif_orientation': image_file.exif.get('Orientation', 1),
}
return cleaned_data
class MarkerForm(EntangledModelForm):
title = CharField(
label=_("Marker Title"),
widget=widgets.TextInput(attrs={'size': 60}),
help_text=_(
"Please choose a title, then go to the map to set a marker pin"))
use_icon = BooleanField(
label=_("Use customized marker icon"),
initial=False,
required=False,
)
marker_image = AdminImageFormField(
ManyToOneRel(FilerImageField, Image, 'file_ptr'),
Image.objects.all(),
label=_("Marker Image"),
required=False,
to_field_name='image_file',
)
marker_width = SizeField(
label=_("Marker Width"),
allowed_units=['px'],
required=False,
help_text=_("Width of the marker icon in pixels."),
)
marker_anchor = MultiSizeField(
['left', 'top'],
label=_("Marker Anchor"),
allowed_units=['px', '%'],
required=False,
help_text=
_("The coordinates of the icon's anchor (relative to its top left corner)."
),
)
popup_text = HTMLFormField(
required=False,
help_text=_("Optional rich text to display in popup."),
)
position = HiddenDictField()
class Meta:
entangled_fields = {
'glossary': [
'title', 'use_icon', 'marker_image', 'marker_width',
'marker_anchor', 'popup_text', 'position'
]
}
def clean(self):
cleaned_data = super().clean()
try:
position = cleaned_data['position']
if isinstance(position, str):
position = json.loads(position)
elif not isinstance(position, dict):
raise ValueError
except (ValueError, KeyError):
raise ValidationError(
"Invalid internal position data. Check your Javascript imports."
)
else:
if 'lat' not in position or 'lng' not in position:
# place the marker in the center of the current map
position = {
k: v
for k, v in self.instance.cascade_element.
glossary['map_position'].items() if k in ['lat', 'lng']
}
cleaned_data['position'] = position
popup_text = cleaned_data.pop('popup_text', '')
if strip_tags(popup_text):
cleaned_data['popup_text'] = strip_spaces_between_tags(popup_text)
return cleaned_data