Added shelve mixin

senpy/models.py

@@ -71,7 +71,10 @@ class Leaf(dict):
             return id
 
     def __delattr__(self, key):
-        return super(Leaf, self).__delitem__(self._get_key(key))
+        if key in self.__dict__:
+            del self.__dict__[key]
+        else:
+            super(Leaf, self).__delitem__(self._get_key(key))
 
     def _get_key(self, key):
         if key[0] == "_":

senpy/plugins.py

@@ -1,4 +1,7 @@
 
+import inspect
+import os.path
+import shelve
 import logging
 import ConfigParser
 from .models import Response, Leaf
@@ -85,6 +88,9 @@ class SenpyPlugin(Leaf):
         self.is_activated = False
         self._info = info
 
+    def get_folder(self):
+        return os.path.dirname(inspect.getfile(self.__class__))
+
     def analyse(self, *args, **kwargs):
         logger.debug("Analysing with: {} {}".format(self.name, self.version))
         pass
@@ -121,3 +127,29 @@ class EmotionPlugin(SenpyPlugin):
         resp = super(EmotionPlugin, self).__init__(info, *args, **kwargs)
         self.minEmotionValue = float(info.get("minEmotionValue", 0))
         self.maxEmotionValue = float(info.get("maxEmotionValue", 0))
+
+
+class ShelfMixin(object):
+
+    @property
+    def sh(self):
+        if not hasattr(self, '_sh') or not self._sh:
+            self._sh = shelve.open(self.shelf_file, writeback=True)
+        return self._sh
+
+    @sh.deleter
+    def sh(self):
+        if hasattr(self, '_sh'):
+            del(self._sh)
+
+    @property
+    def shelf_file(self):
+        if not hasattr(self, '_shelf_file') or not self._shelf_file:
+            if hasattr(self, '_info') and 'shelf_file' in self._info:
+                self._shelf_file = self._info['shelf_file']
+            else:
+                self._shelf_file = os.path.join(self.get_folder(), self.name + '.db')
+        return self._shelf_file 
+
+    def close(self):
+        del(self._sh)

tests/plugins_test/__init__.py

@@ -0,0 +1,41 @@
+import os
+import logging
+import shelve
+
+try:
+    import unittest.mock as mock
+except ImportError:
+    import mock
+import json
+import os
+from unittest import TestCase
+from senpy.models import Response, Entry
+from senpy.plugins import SenpyPlugin, ShelfMixin
+
+
+class ModelsTest(TestCase):
+
+    # def test_shelf(self):
+    #     class ShelfTest(ShelfMixin):
+    #         pass
+    #     a = ShelfTest()
+    #     print(type(a.sh))
+    #     assert(False)
+        
+    def test_shelf(self):
+        class ShelfTest(ShelfMixin, SenpyPlugin):
+            pass
+        a = ShelfTest({'name': 'shelve', 'version': 'test'})
+        print(type(a.sh))
+        a.context = "ohno"
+        del a.context
+        print(a)
+        a.sh['classifier'] = {'name': 'ohno'}
+        assert a.name == 'shelve'
+        assert isinstance(a.sh, shelve.Shelf)
+        a.close()
+        b = ShelfTest({'name': 'shelve', 'version': 'test'})
+        assert b.name == 'shelve'
+        assert b.sh['classifier']
+        assert b.sh['classifier']['name'] == 'ohno'
+        assert isinstance(b.sh, shelve.Shelf)