Added Date Zoom feature at Planning Box. The Planning Box was partially refactored
in some parts by me (and also Romain) these lasts months, this commit was the initial 
one.

The tests and documentation update will come soon.



git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@15881 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Form/SelectionTool.py

@@ -647,27 +647,53 @@ class SelectionTool( BaseTool, UniqueObject, SimpleItem ):
 
     # PlanningBox related methods
     security.declareProtected(ERP5Permissions.View, 'setZoomLevel')
-    def setZoomLevel(self, uids=None, REQUEST=None, form_id=None, query_string=None):
+    def setZoomLevel(self, uids=None, REQUEST=None, form_id=None,
+                     query_string=None):
       """
       Set graphic zoom level in PlanningBox
       """
-      if uids is None: uids = []
+      if uids is None:
+        uids = []
       request = REQUEST
-      #zoom_level=request.get('zoom_level')
       selection_name=request.list_selection_name
       selection = self.getSelectionFor(selection_name, REQUEST=REQUEST)
       if selection is not None:
         params = selection.getParams()
-        zoom_level = request.form.get('zoom_level',1)
+        zoom_level = request.form.get('zoom_level', None)
+        if zoom_level is None:
+          # If zoom_level is not defined try to 
+          # use the last one from params
+          zoom_level =  params.get('zoom_level', 1)
+
+        # for keep compatibility with the old zoom        
         zoom_start = request.form.get('zoom_start',0)
-        params['zoom_level'] = zoom_level
         if zoom_level <= zoom_start:
           zoom_start = max(int(float(zoom_level)),1) - 1
-          params['zoom_start'] = zoom_start
-        selection.edit(params= params)
+          params['zoom_start'] = zoom_start   
+
+        # XXX URL currently pass string parameter and not int
+        # This is a dirty fix!
+        # It should be fixed by cleaning the date zoom level
+        # in a generic way
+        zoom_level = int(zoom_level)
+        zoom_begin = request.form.get('zoom_begin', None)
+        #zoom_end = request.form.get('zoom_end', None)
+        zoom_date_start = request.form.get('zoom_date_start', None)
+        if zoom_date_start is not None:
+          zoom_begin = zoom_date_start
+        if zoom_begin is None:
+          zoom_begin = params.get('zoom_begin', None)
+        params['zoom_level'] = zoom_level
+        # Calculating New zoom Dates Range.
+        validate_method = getattr(self, 'planning_validate_date_list', None)
+        date_range = validate_method(zoom_begin,zoom_level)
+        params['from_date'] = params['zoom_begin'] = date_range[0]
+        params['to_date'] = params['zoom_end'] = date_range[1]
+        selection.edit(params=params)
       if REQUEST is not None:
-        return self._redirectToOriginalForm(REQUEST=REQUEST, form_id=form_id,
-                                           query_string=query_string)
+        return self._redirectToOriginalForm(REQUEST=REQUEST,
+                                            form_id=form_id,
+                                            query_string=query_string)
 
     security.declareProtected(ERP5Permissions.View, 'setZoom')
     def setZoom(self, uids=None, REQUEST=None, form_id=None, query_string=None):
@@ -692,37 +718,65 @@ class SelectionTool( BaseTool, UniqueObject, SimpleItem ):
       """
       Set next graphic zoom start in PlanningBox
       """
-      if uids is None: uids = []
+      if uids is None:
+        uids = []
       request = REQUEST
       selection_name=request.list_selection_name
       selection = self.getSelectionFor(selection_name, REQUEST=REQUEST)
       if selection is not None:
         params = selection.getParams()
+        zoom_level =  params.get('zoom_level', 1)
+        zoom_variation = + 1
+        zoom_begin = request.form.get('zoom_begin', None)
+        
+        # for keep the compatibility
         zoom_start = params.get('zoom_start',0)
         params['zoom_start'] = int(zoom_start) + 1
-        selection.edit(params= params)
+
+        if zoom_begin is None:
+          zoom_begin = params.get('zoom_begin', None)
+        validate_method = getattr(self, 'planning_validate_date_list', None)
+        date_range = validate_method(zoom_begin,zoom_level,zoom_variation)
+        params['zoom_begin'] = params['from_date'] = date_range[0]
+        params['zoom_end'] = params['to_date'] = date_range[1]
+        selection.edit(params=params)
       if REQUEST is not None:
-        return self._redirectToOriginalForm(REQUEST=REQUEST, form_id=form_id,
-                                           query_string=query_string)
+        return self._redirectToOriginalForm(REQUEST=REQUEST,
+                                            form_id=form_id,
+                                             query_string=query_string)
 
     security.declareProtected(ERP5Permissions.View, 'previousZoom')
     def previousZoom(self, uids=None, REQUEST=None, form_id=None, query_string=None):
       """
       Set previous graphic zoom in PlanningBox
       """
-      if uids is None: uids = []
+      if uids is None:
+        uids = []
       request = REQUEST
       selection_name=request.list_selection_name
       selection = self.getSelectionFor(selection_name, REQUEST=REQUEST)
       if selection is not None:
         params = selection.getParams()
+        zoom_level =  params.get('zoom_level', 1)
+        zoom_variation = -1
+        zoom_begin = request.form.get('zoom_begin', None)
+
+        # for keep the compatibility
         zoom_start = params.get('zoom_start',0)
         params['zoom_start'] = int(zoom_start) - 1
-        selection.edit(params= params)
-      if REQUEST is not None:
-        return self._redirectToOriginalForm(REQUEST=REQUEST, form_id=form_id,
-			                   query_string=query_string)
 
+        if zoom_begin is None:
+          zoom_begin = params.get('zoom_begin', None)
+        validate_method = getattr(self, 'planning_validate_date_list', None)
+        date_range = validate_method(zoom_begin,zoom_level,zoom_variation)
+        params['zoom_begin'] = params['from_date'] = date_range[0]
+        params['zoom_end'] = params['to_date'] = date_range[1]
+        selection.edit(params=params)
+      if REQUEST is not None:
+        return self._redirectToOriginalForm(REQUEST=REQUEST,
+                                            form_id=form_id,
+                                             query_string=query_string)
+    
     security.declareProtected(ERP5Permissions.View, 'setDomainRoot')
     def setDomainRoot(self, REQUEST, form_id=None, query_string=None):
       """
@@ -1455,8 +1509,6 @@ def makeTreeList(here, form, root_dict, report_path, base_category,
         object_list = list_method(portal_type=filtered_portal_types)
       else:
         object_list = list_method()
-      if len(object_list) == 0:
-        object_list = [root]
     for zo in object_list:
       o = zo.getObject()
       if o is not None: