split feature model – beginnings (still missing: API, Forms, Editor)

src/c3nav/mapdata/models/base.py

@@ -0,0 +1,33 @@
+from collections import OrderedDict
+
+from django.db import models
+from django.utils.translation import ugettext_lazy as _
+
+
+class MapdataModel(models.Model):
+    name = models.SlugField(_('Name'), max_length=50)
+    package = models.ForeignKey('mapdata.Package', on_delete=models.CASCADE, verbose_name=_('map package'))
+
+    @classmethod
+    def get_path_prefix(cls):
+        return cls._meta.default_related_name + '/'
+
+    @classmethod
+    def get_path_regex(cls):
+        return r'^' + cls.get_path_prefix()
+
+    def get_filename(self):
+        return self._meta.default_related_name + '/' + self.name + '.json'
+
+    @classmethod
+    def fromfile(cls, data, file_path):
+        kwargs = {}
+        return kwargs
+
+    def tofile(self):
+        return OrderedDict()
+
+    class Meta:
+        abstract = True
+        unique_together = ('package', 'name')
+