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django-leaflet-storage / leaflet_storage / forms.py

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# -*- coding: utf-8 -*-

from django import forms
from django.contrib.gis.geos import Point
from django.utils.translation import ugettext_lazy as _
from django.template.defaultfilters import slugify
from django.conf import settings
from django.forms.util import ErrorList

from .models import Map, DataLayer

DEFAULT_LATITUDE = settings.LEAFLET_LATITUDE if hasattr(settings, "LEAFLET_LATITUDE") else 51
DEFAULT_LONGITUDE = settings.LEAFLET_LONGITUDE if hasattr(settings, "LEAFLET_LONGITUDE") else 2
DEFAULT_CENTER = Point(DEFAULT_LONGITUDE, DEFAULT_LATITUDE)



class FlatErrorList(ErrorList):
    def __unicode__(self):
        return self.flat()
    def flat(self):
        if not self: return u''
        return u' — '.join([e for e in self])

class UpdateMapPermissionsForm(forms.ModelForm):

    class Meta:
        model = Map
        fields = ('edit_status', 'editors')


class AnonymousMapPermissionsForm(forms.ModelForm):

    def __init__(self, *args, **kwargs):
        super(AnonymousMapPermissionsForm, self).__init__(*args, **kwargs)
        full_secret_link = "%s%s" % (settings.SITE_URL, self.instance.get_anonymous_edit_url())
        help_text = _('Secret edit link is %s') % full_secret_link
        self.fields['edit_status'].help_text = _(help_text)

    STATUS = (
        (Map.ANONYMOUS, _('Everyone can edit')),
        (Map.OWNER, _('Only editable with secret edit link'))
    )

    edit_status = forms.ChoiceField(STATUS)

    class Meta:
        model = Map
        fields = ('edit_status', )


class DataLayerForm(forms.ModelForm):

    class Meta:
        model = DataLayer
        fields = ('geojson', 'name', 'display_on_load')


class MapSettingsForm(forms.ModelForm):

    def __init__(self, *args, **kwargs):
        super(MapSettingsForm, self).__init__(*args, **kwargs)
        self.fields["slug"].required = False

    def clean_slug(self):
        slug = self.cleaned_data.get('slug', None)
        name = self.cleaned_data.get('name', None)
        if not slug and name:
            # If name is empty, don't do nothing, validation will raise
            # later on the process because name is required
            self.cleaned_data['slug'] = slugify(name)
            return self.cleaned_data['slug'][:50]
        else:
            return ""

    def clean_center(self):
        if not self.cleaned_data['center']:
            point = DEFAULT_CENTER
            self.cleaned_data['center'] = point
        return self.cleaned_data['center']

    class Meta:
        fields = ('settings', 'name', 'center', 'slug')
        model = Map