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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Models description
"""
from django.utils.translation import ugettext_lazy as _
from django.contrib.gis.db import models
from django.contrib import admin
from chimere import settings
from chimere.main.widgets import PointField
class Category(models.Model):
"""Category of Point Of Interest (POI)
"""
name = models.CharField(_("Name"), max_length=150)
available = models.BooleanField(_("Available"))
order = models.IntegerField(_("Order"))
def __unicode__(self):
return self.name
class Meta:
ordering = ["order"]
verbose_name = _("Category")
class Icon(models.Model):
'''Icon
'''
name = models.CharField(_("Name"), max_length=150)
image = models.ImageField(_("Image"), upload_to='icons')
def __unicode__(self):
return self.name
class Meta:
verbose_name = _("Icon")
class SubCategory(models.Model):
'''Sub-category
'''
category = models.ForeignKey(Category, verbose_name=_("Category"))
name = models.CharField(_("Name"), max_length=150)
available = models.BooleanField(_("Available"))
icon = models.ForeignKey(Icon, verbose_name=_("Icon"))
order = models.IntegerField(_("Order"))
def __unicode__(self):
return u"%s / %s" % (self.category.name, self.name)
class Meta:
ordering = ["category", "order"]
verbose_name = _("Subcategory")
def getAvailable():
'''Get list of tuples with first the category and second the associated
subcategories
'''
sub_categories = {}
for sub_category in SubCategory.objects.filter(category__available=True,
available=True):
if sub_category.category not in sub_categories:
sub_categories[sub_category.category] = []
sub_categories[sub_category.category].append(sub_category)
return [(category, sub_cats) for category, sub_cats \
in sub_categories.items()]
getAvailable = staticmethod(getAvailable)
class Marker(models.Model):
'''Marker for a POI
'''
name = models.CharField(_("Name"), max_length=150)
subcategory = models.ForeignKey(SubCategory, verbose_name=_("Subcategory"))
point = PointField(_("Localisation"))
picture = models.ImageField(_("Image"), upload_to='upload', blank=True)
STATUS = (('S', _('Submited')),
('A', _('Available')),
('D', _('Disabled')),)
STATUS_DCT = {}
for key, label in STATUS:
STATUS_DCT[key] = label
status = models.CharField(_("Status"), max_length=1, choices=STATUS)
objects = models.GeoManager()
def __unicode__(self):
return self.name
class Meta:
ordering = ('subcategory__category', 'subcategory', 'status', 'name')
verbose_name = _("Point of interest")
def getLatitude(self):
'''Return the latitude
'''
return self.point.y
def getLongitude(self):
'''Return the longitude
'''
return self.point.x
def getProperty(self, propertymodel, safe=None):
"""Get the property of an associated property model.
If safe set to True, verify if the property is available
"""
if safe and not propertymodel.available:
return
try:
property = Property.objects.get(propertymodel=propertymodel,
marker=self)
except Property.DoesNotExist:
return
return property
def getProperties(self):
"""Get all the property availables
"""
properties = []
for pm in PropertyModel.objects.filter(available=True):
property = self.getProperty(pm)
if property:
properties.append(property)
return properties
def getGeoJSON(self):
'''Return a GeoJSON string
'''
return """{"type":"Feature", "geometry":{"type":"Point", "crs": "EPSG:%(epsg)d", "coordinates":[%(longitude)s, %(latitude)s]}, "properties":{"pk": %(id)d, "name": "%(name)s", "icon_path":"%(icon_path)s"}}""" \
% {'id':self.id, 'name':self.name, 'icon_path':self.subcategory.icon.image,
'latitude':self.getLatitude(), 'longitude':self.getLongitude(),
'epsg':settings.EPSG_PROJECTION}
class PropertyModel(models.Model):
'''Model for a property
'''
name = models.CharField(_("Name"), max_length=150)
order = models.IntegerField(_("Order"))
available = models.BooleanField(_("Available"))
TYPE = (('T', _('Text')),
('L', _('Long text')),
('P', _('Password')))
TYPE_WIDGET = {'T':'TextInput',
'L':'Textarea',
'P':'PasswordInput'}
type = models.CharField(_("Type"), max_length=1, choices=TYPE)
def __unicode__(self):
return self.name
class Meta:
ordering = ('order',)
verbose_name = _("Property model")
def getNamedId(self):
'''Get the name used as named id (easily sortable)
'''
return 'property_%d_%d' % (self.order, self.id)
class Property(models.Model):
'''Property for a POI
'''
marker = models.ForeignKey(Marker, verbose_name=_("Point of interest"))
propertymodel = models.ForeignKey(PropertyModel,
verbose_name=_("Property model"))
value = models.CharField(_("Value"), max_length=1000)
def __unicode__(self):
return "%s : %s" % (str(self.propertymodel), self.value)
class Meta:
verbose_name = _("Property")
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