Add base class of Geographical Point

product/ERP5/Document/GeographicalPoint.py

+##############################################################################
+#
+# Copyright (c) 2015 Nexedi SARL and Contributors. All Rights Reserved.
+#                    Ivan Tyagov <ivan@nexedi.com>
+#
+# WARNING: This program as such is intended to be used by professional
+# programmers who take the whole responsability of assessing all potential
+# consequences resulting from its eventual inadequacies and bugs
+# End users who are looking for a ready-to-use solution with commercial
+# garantees and support are strongly adviced to contract a Free Software
+# Service Company
+#
+# This program is Free Software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#
+##############################################################################
+
+from AccessControl import ClassSecurityInfo
+from Products.ERP5Type import Permissions, PropertySheet
+from Products.ERP5.Document.Url import Url
+
+class GeographicalPoint(Url):
+  """
+    A GeographicalPoint represent a point on the surface of the Earth
+    which is address by its coordinates.
+  """
+
+  meta_type = 'ERP5 Geographical Location'
+  portal_type = 'Geographical Location'
+  add_permission = Permissions.AddPortalContent
+
+  # Declarative security
+  security = ClassSecurityInfo()
+  security.declareObjectProtected(Permissions.AccessContentsInformation)
+
+  # Declarative properties
+  property_sheets = ( PropertySheet.CategoryCore
+                    , PropertySheet.SortIndex
+                    , PropertySheet.Url
+                    , PropertySheet.GeographicalPoint
+                    )
+
+  def asURL(self):
+    """
+      Returns  the URL of coordinates.
+    """
+    return self.asText()
+
+  def asText(self):
+    """
+      Returns the coordinates as text.
+    """
+    return '%s %s' %(self.getLongitude(), self.getLatitude())