1 files changed, 83 insertions, 0 deletions
diff --git a/sugar_network/model/release.py b/sugar_network/model/release.py
new file mode 100644
index 0000000..46eeaae
--- /dev/null
+++ b/sugar_network/model/release.py
@@ -0,0 +1,83 @@
+# Copyright (C) 2012-2013 Aleksey Lim
+#
+# 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 3 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, see <http://www.gnu.org/licenses/>.
+
+import xapian
+
+from sugar_network import db, model
+from sugar_network.toolkit.router import ACL
+from sugar_network.toolkit.licenses import GOOD_LICENSES
+from sugar_network.toolkit.spec import parse_version
+
+
+class Release(db.Resource):
+
+    @db.indexed_property(prefix='C',
+            acl=ACL.CREATE | ACL.READ)
+    def context(self, value):
+        return value
+
+    @context.setter
+    def context(self, value):
+        if self.request.principal:
+            authors = self.volume['context'].get(value)['author']
+            if self.request.principal in authors:
+                self['layer'] = ('origin',) + tuple(self.layer)
+        return value
+
+    @db.indexed_property(prefix='L', full_text=True, typecast=[GOOD_LICENSES],
+            acl=ACL.CREATE | ACL.READ)
+    def license(self, value):
+        return value
+
+    @db.indexed_property(slot=1, prefix='V', fmt=lambda x: _fmt_version(x),
+            acl=ACL.CREATE | ACL.READ)
+    def version(self, value):
+        return value
+
+    @db.indexed_property(prefix='S', default='stabile',
+            acl=ACL.CREATE | ACL.READ, typecast=model.STABILITIES)
+    def stability(self, value):
+        return value
+
+    @db.indexed_property(prefix='N', full_text=True, localized=True,
+            default='', acl=ACL.CREATE | ACL.READ)
+    def notes(self, value):
+        return value
+
+    @db.indexed_property(prefix='R', typecast=[], default=[],
+            acl=ACL.CREATE | ACL.READ)
+    def requires(self, value):
+        return value
+
+    @db.blob_property()
+    def data(self, value):
+        return value
+
+
+def _fmt_version(version):
+    version = parse_version(version)
+    # Convert to [(`version`, `modifier`)]
+    version = zip(*([iter(version)] * 2))
+    major, modifier = version.pop(0)
+
+    result = sum([(rank % 10000) * pow(10000, 3 - i)
+            for i, rank in enumerate((major + [0, 0])[:3])])
+    result += (5 + modifier) * 1000
+    if modifier and version:
+        minor, __ = version.pop(0)
+        if minor:
+            result += (minor[0] % 1000)
+
+    return xapian.sortable_serialise(result)