enhancement of load detection of fields

weboob/capabilities/base.py

@@ -62,7 +62,30 @@ class CapBaseObject(object):
         self.id = id
         self.backend = backend
 
+    def __iscomplete__(self):
+        """
+        Return True if the object is completed.
+
+        It is usefull when the object is a field of an other object which is
+        going to be filled.
+
+        The default behavior is to iter on fields (with iter_fields) and if
+        a field is NotLoaded, return False.
+        """
+        for key, value in self.iter_fields():
+            if value is NotLoaded:
+                return False
+        return True
+
     def iter_fields(self):
+        """
+        Iterate on the FIELDS keys and values.
+
+        Can be overloaded to iterate on other things.
+
+        @return [iter(key,value)]  iterator on key, value
+        """
+
         if self.FIELDS is None:
             for key, value in iter_fields(self):
                 if key != 'backend':

weboob/capabilities/contact.py

@@ -33,9 +33,10 @@ class ProfileNode(object):
         self.sufix = sufix
         self.flags = flags
 
-class ContactPhoto(object):
+class ContactPhoto(CapBaseObject):
     def __init__(self, name):
-        self.name = name
+        CapBaseObject.__init__(self, name)
+        self.name = name #useless, but keep compatibility
         self.url = u''
         self.data = ''
         self.thumbnail_url = u''

weboob/capabilities/video.py

@@ -22,7 +22,7 @@ from .base import IBaseCap, NotLoaded, CapBaseObject
 __all__ = ['BaseVideo', 'ICapVideo']
 
 
-class VideoThumbnail(object):
+class VideoThumbnail(CapBaseObject):
     def __init__(self, url):
         self.url = url.replace(' ', '%20')
         self.data = NotLoaded