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lazy: Move lazy class implementations into a separate module
authorTomas Babej <tomasbabej@gmail.com>
Thu, 24 Dec 2015 11:05:28 +0000 (12:05 +0100)
committerTomas Babej <tomasbabej@gmail.com>
Thu, 24 Dec 2015 11:05:28 +0000 (12:05 +0100)
tasklib/lazy.py [new file with mode: 0644]
tasklib/task.py
tasklib/tests.py

diff --git a/tasklib/lazy.py b/tasklib/lazy.py
new file mode 100644 (file)
index 0000000..0bd9332
--- /dev/null
@@ -0,0 +1,94 @@
+"""
+Provides lazy implementations for Task and TaskQuerySet.
+"""
+
+
+class LazyUUIDTask(object):
+    """
+    A lazy wrapper around Task object, referenced by UUID.
+
+    - Supports comparison with LazyUUIDTask or Task objects (equality by UUIDs)
+    - If any attribute other than 'uuid' requested, a lookup in the
+      backend will be performed and this object will be replaced by a proper
+      Task object.
+    """
+
+    def __init__(self, tw, uuid):
+        self._tw = tw
+        self._uuid = uuid
+
+    def __getitem__(self, key):
+        # LazyUUIDTask does not provide anything else other than 'uuid'
+        if key is 'uuid':
+            return self._uuid
+        else:
+            self.replace()
+            return self[key]
+
+    def __getattr__(self, name):
+        # Getattr is called only if the attribute could not be found using
+        # normal means
+        self.replace()
+        return self.name
+
+    def __eq__(self, other):
+        if other['uuid']:
+            # For saved Tasks, just define equality by equality of uuids
+            return self['uuid'] == other['uuid']
+
+    def __hash__(self):
+        return self['uuid'].__hash__()
+
+    def replace(self):
+        """
+        Performs conversion to the regular Task object, referenced by the
+        stored UUID.
+        """
+
+        replacement = self._tw.tasks.get(uuid=self._uuid)
+        self.__class__ = replacement.__class__
+        self.__dict__ = replacement.__dict__
+
+
+class LazyUUIDTaskSet(object):
+    """
+    A lazy wrapper around TaskQuerySet object, for tasks referenced by UUID.
+
+    - Supports 'in' operator with LazyUUIDTask or Task objects
+    - If iteration over the objects in the LazyUUIDTaskSet is requested, the
+      LazyUUIDTaskSet will be converted to QuerySet and evaluated
+    """
+
+    def __init__(self, tw, uuids):
+        self._tw = tw
+        self._uuids = set(uuids)
+
+    def __getattr__(self, name):
+        # Getattr is called only if the attribute could not be found using
+        # normal means
+        self.replace()
+        return self.name
+
+    def __eq__(self, other):
+        return set(t['uuid'] for t in other) == self._uuids
+
+    def __contains__(self, task):
+        return task['uuid'] in self._uuids
+
+    def __len__(self):
+        return len(self._uuids)
+
+    def __iter__(self):
+        self.replace()
+        for task in self:
+            yield task
+
+    def replace(self):
+        """
+        Performs conversion to the regular TaskQuerySet object, referenced by
+        the stored UUIDs.
+        """
+
+        replacement = self._tw.tasks.filter(' '.join(self._uuids))
+        self.__class__ = replacement.__class__
+        self.__dict__ = replacement.__dict__
index 6ebee4cc6b7442ceb2b62a3126324fbcc91e30fb..5eabc65178d2ae930835d6508a04ad45f0eafe0c 100644 (file)
@@ -168,97 +168,6 @@ class TaskAnnotation(TaskResource):
     __repr__ = __unicode__
 
 
     __repr__ = __unicode__
 
 
-class LazyUUIDTask(object):
-    """
-    A lazy wrapper around Task object, referenced by UUID.
-
-    - Supports comparison with LazyUUIDTask or Task objects (equality by UUIDs)
-    - If any attribute other than 'uuid' requested, a lookup in the
-      backend will be performed and this object will be replaced by a proper
-      Task object.
-    """
-
-    def __init__(self, tw, uuid):
-        self._tw = tw
-        self._uuid = uuid
-
-    def __getitem__(self, key):
-        # LazyUUIDTask does not provide anything else other than 'uuid'
-        if key is 'uuid':
-            return self._uuid
-        else:
-            self.replace()
-            return self[key]
-
-    def __getattr__(self, name):
-        # Getattr is called only if the attribute could not be found using
-        # normal means
-        self.replace()
-        return self.name
-
-    def __eq__(self, other):
-        if other['uuid']:
-            # For saved Tasks, just define equality by equality of uuids
-            return self['uuid'] == other['uuid']
-
-    def __hash__(self):
-        return self['uuid'].__hash__()
-
-    def replace(self):
-        """
-        Performs conversion to the regular Task object, referenced by the
-        stored UUID.
-        """
-
-        replacement = self._tw.tasks.get(uuid=self._uuid)
-        self.__class__ = replacement.__class__
-        self.__dict__ = replacement.__dict__
-
-
-class LazyUUIDTaskSet(object):
-    """
-    A lazy wrapper around TaskQuerySet object, for tasks referenced by UUID.
-
-    - Supports 'in' operator with LazyUUIDTask or Task objects
-    - If iteration over the objects in the LazyUUIDTaskSet is requested, the
-      LazyUUIDTaskSet will be converted to QuerySet and evaluated
-    """
-
-    def __init__(self, tw, uuids):
-        self._tw = tw
-        self._uuids = set(uuids)
-
-    def __getattr__(self, name):
-        # Getattr is called only if the attribute could not be found using
-        # normal means
-        self.replace()
-        return self.name
-
-    def __eq__(self, other):
-        return set(t['uuid'] for t in other) == self._uuids
-
-    def __contains__(self, task):
-        return task['uuid'] in self._uuids
-
-    def __len__(self):
-        return len(self._uuids)
-
-    def __iter__(self):
-        self.replace()
-        for task in self:
-            yield task
-
-    def replace(self):
-        """
-        Performs conversion to the regular TaskQuerySet object, referenced by
-        the stored UUIDs.
-        """
-
-        replacement = self._tw.tasks.filter(' '.join(self._uuids))
-        self.__class__ = replacement.__class__
-        self.__dict__ = replacement.__dict__
-
-
 class Task(TaskResource):
     read_only_fields = ['id', 'entry', 'urgency', 'uuid', 'modified']
 
 class Task(TaskResource):
     read_only_fields = ['id', 'entry', 'urgency', 'uuid', 'modified']
 
index 7c06f362aafa9322ecc4b6480e53035843dfa741..48007eadf5fd586f8ce2816c76264fd62a53f3b2 100644 (file)
@@ -12,8 +12,8 @@ import tempfile
 import unittest
 
 from .backends import TaskWarrior
 import unittest
 
 from .backends import TaskWarrior
-from .task import (Task, ReadOnlyDictView, LazyUUIDTask,
-                   LazyUUIDTaskSet, TaskQuerySet)
+from .task import Task, ReadOnlyDictView, TaskQuerySet
+from .lazy import LazyUUIDTask, LazyUUIDTaskSet
 from .serializing import DATE_FORMAT, local_zone
 
 # http://taskwarrior.org/docs/design/task.html , Section: The Attributes
 from .serializing import DATE_FORMAT, local_zone
 
 # http://taskwarrior.org/docs/design/task.html , Section: The Attributes