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/PlanningBox.py

@@ -650,6 +650,7 @@ class PlanningBoxWidget(Widget.Widget):
      'size_border_width_left', 'size_planning_width', 'size_y_axis_space',
      'size_y_axis_width',
      # height properties
+     'use_date_zoom',
      'size_header_height', 'size_planning_height', 'size_x_axis_space',
      'size_x_axis_height',
      # axis position
@@ -677,14 +678,18 @@ class PlanningBoxWidget(Widget.Widget):
 
   # Planning properties (accessed through Zope Management Interface)
 
-  # kind of representation to render :
-  # Planning or Calendar
   js_enabled = fields.CheckBoxField('js_enabled',
       title='enable on the fly edition (based on java script)',
       description='define if javascript is enabled or not on the current Planning',
       default=1,
       required=1)
 
+  use_date_zoom = fields.CheckBoxField('use_date_zoom',
+      title='Use Date Zoom (instead use Numerical Zoom)',
+      description='Use Date Zoom instead use Numerical Zoom',
+      default=0,
+      required=0)
+
   # kind of representation to render :
   # Planning or Calendar
   calendar_view = fields.CheckBoxField('calendar_view',
@@ -1135,7 +1140,7 @@ class BasicStructure:
     #params = self.selection.getParams()
 
     #recovering selection if necessary
-    # XXX Use seclection tool API
+    # XXX Use selection tool API
     if self.selection is None:
       self.selection = Selection(params=default_params,
                                  default_sort_on=self.sort)
@@ -1161,11 +1166,6 @@ class BasicStructure:
     portal_categories = getattr(self.form,'portal_categories',None)
     portal_domains = getattr(self.form,'portal_domains',None)
 
-    if getattr(self.sec_layer_list_method, 'method_name', None) is not None:
-       self.sec_layer_list_method = getattr(
-                                      self.context,
-                                      self.sec_layer_list_method.method_name)
-
     ##################################################
     ############### BUILDING QUERY ###################
     ##################################################
@@ -1178,6 +1178,11 @@ class BasicStructure:
     # names.
     if 'select_expression' in kw:
       del kw['select_expression']
+
+    if getattr(self.sec_layer_list_method, 'method_name', None) is not None:
+       self.sec_layer_list_method = getattr(
+                                      self.context,
+                                      self.sec_layer_list_method.method_name)
     if getattr(self.list_method, 'method_name', None) is not None:
       if self.list_method.method_name == 'ObjectValues':
         # list_method is available
@@ -1236,9 +1241,10 @@ class BasicStructure:
     self.selection_report_path = self.selection.getReportPath(
                                   default=default_selection_report_path)
 
-    if self.selection_report_path in (None, ()):
-      raise PlanningBoxError, 'report path is empty or not valid on %s' % \
-        self.field.absolute_url()
+    # XXX use LOG instead Raise
+    #if self.selection_report_path in (None, ()):
+    #  raise PlanningBoxError, 'report path is empty or not valid on %s' % \
+    #    self.field.absolute_url()
 
     # testing report_depth value
     if report_depth is not None:
@@ -1289,18 +1295,14 @@ class BasicStructure:
     select_expression = ''
     self.sec_layer_uid_list = []
     # now iterating through report_tree_list
-    # LOG('PlanningBox, build', 0, 'report_tree_list %s' % len(report_tree_list))
     for object_tree_line in report_tree_list:
-      # LOG('PlanningBox, build', 0, 'object_tree_line %s' % str(object_tree_line))
       # prepare query by defining selection report object
       # defining info_dict, holding all information about the current object.
       info_dict = None
       info_dict = {}
 
       if object_tree_line.getIsPureSummary() and show_stat:
-
         info_dict['stat'] = 1
-
         # push new select_expression
         original_select_expression = kw.get('select_expression')
         kw['select_expression'] = select_expression
@@ -1339,9 +1341,9 @@ class BasicStructure:
         else:
           # Reset Object List if ther is no List Method
           object_list = []
-          # no list_method found
-          raise PlanningBoxError, "No list method found on %s" % \
-              self.field.absolute_url()
+
+        if self.selection_report_path == 'parent':
+          object_list = [object_tree_line.getObject()]
 
         # Defining the Secondary Layer Object List
         if self.sec_layer_list_method not in (None,''):
@@ -1371,7 +1373,7 @@ class BasicStructure:
           object_list = new_object_list
           sec_layer_object_list = sec_new_object_list
 
-        if exception_uid_list not in ([],None) :
+        if exception_uid_list not in ([], None, ()) :
           # Filter folders if parent tree :
           # build new object_list for current line
           # (list of relative elements)
@@ -1409,7 +1411,7 @@ class BasicStructure:
             self.report_groups += [(object_tree_line, object_list, info_dict)]
             self.nbr_groups += 1
           else:
-            if exception_uid_list is not None:
+            if exception_uid_list not in [None, [], ()]:
               # case of parent tree mode (first/unique object).
               # beware object_list is not null in case folded sons exists so
               # do not export voluntary object_list to prevent bad
@@ -1442,7 +1444,7 @@ class BasicStructure:
     ##################################################
     ############## CHECKING CONSTRAINTS ##############
     ##################################################
-    # XXX Constraints checking chould be called here
+    # XXX Constraints checking should be called here
     # and results saved in a list (list of url corresponding to objects not
     # validated)
 
@@ -1459,13 +1461,6 @@ class BasicStructure:
     if self.report_groups != []:
       self.report_groups=self.report_groups[self.main_axis_info['bound_start']:
                                             self.main_axis_info['bound_stop']]
-    else:
-      pass
-      # no group is available so the Y and X axis will be empty...
-      #raise PlanningBoxError, \
-      #    'selection method returned empty list of objects : please check' \
-      #    'list_method and report_root of %s' % \
-      #    self.field.absolute_url()
 
     ##################################################
     ############ GETTING SEC AXIS BOUNDS #############
@@ -1481,11 +1476,7 @@ class BasicStructure:
 
     # now getting start & stop bounds (getting relative size to the current
     # rendering)
-    status = self.getSecondaryAxisInfo(self.secondary_axis_info)
-    if status != 1:
-      # ERROR
-      # Found error while setting secondary axis bounds
-      return status
+    self.getSecondaryAxisInfo(self.secondary_axis_info)
 
     ##################################################
     ####### SAVING NEW PROPERTIES INTO REQUEST #######
@@ -1571,7 +1562,6 @@ class BasicStructure:
         if calendar_range < (group_stop - group_start):
           calendar_range = (group_stop - group_start)
 
-
       # recovering item properties
       if object_list not in (None, [], {}) :
         for object_request in object_list:
@@ -1605,6 +1595,7 @@ class BasicStructure:
     self.calendar_range = calendar_range
     self.secondary_axis_occurence = secondary_axis_occurence
 
+
   def getSecondaryAxisInfo(self, axis_dict):
     """
     secondary_axis_ocurence holds couples of data (begin,end) related to
@@ -1612,13 +1603,16 @@ class BasicStructure:
     it is now possible to recover begin and end value of the planning and then
     apply selection informations to get start and stop.
     """
+    use_dz = self.field.get_value('use_date_zoom')
     # recovering zoom properties
     axis_dict['zoom_start'] = int(self.params.get('zoom_start',0))
     axis_dict['zoom_level'] = float(self.params.get('zoom_level',1))
   
-    # recovering min and max bounds to get absolute bounds
+    if not use_dz:
+      if len(self.secondary_axis_occurence) != 0:
         axis_dict['bound_begin'] = self.secondary_axis_occurence[0][0]
         axis_dict['bound_end'] = axis_dict['bound_begin']
+        # recovering min and max bounds to get absolute bounds
         for occurence in self.secondary_axis_occurence:
           if (occurence[0] < axis_dict['bound_begin'] or \
               axis_dict['bound_begin'] is None) and occurence[0] is not None:
@@ -1627,16 +1621,21 @@ class BasicStructure:
               axis_dict['bound_end'] is None) and occurence[1] is not None:
             axis_dict['bound_end'] = occurence[1]
 
-    if axis_dict['bound_end']is None or axis_dict['bound_begin'] is None:
-      # ERROR
-      # no bounds over the secondary axis have been defined
-      # can append if bad property has been selected
-      message = 'can not find secondary axis bounds for planning view :\
-      No object has good start & stop properties, please check your objects \
-      and their corresponding properties'
-      #axis_dict['bound_begin'] = 0
-      #axis_dict['bound_end'] = 1
-      return [(Message(domain='erp5_ui', message=message,mapping=None))]
+      else:
+        axis_dict['bound_end'] = axis_dict['bound_begin'] = None
+
+      if axis_dict['bound_end'] is None or axis_dict['bound_begin'] is None:
+        # Has Nothing to show, so Force show an Empty Planning Box.
+        # XXX This axis is not always a Date axe!
+        axis_dict['bound_begin'] = DateTime() - 5
+        axis_dict['bound_start'] = axis_dict['bound_begin']
+        axis_dict['bound_end'] = DateTime() + 5
+        axis_dict['bound_stop'] = axis_dict['bound_end']
+        axis_dict['bound_range'] = axis_dict['bound_end'] - axis_dict['bound_begin']
+        # This is to prevent that show one Block with None dates.
+        if len(self.secondary_axis_occurence) == 1:
+           self.secondary_axis_occurence = []
+        return 1
   
       axis_dict['bound_range'] = axis_dict['bound_end'] - axis_dict['bound_begin']
       # now start and stop have the extreme values of the second axis bound.
@@ -1668,9 +1667,35 @@ class BasicStructure:
       self.params['zoom_level'] = axis_dict['zoom_level']
       self.params['zoom_start'] = axis_dict['zoom_start']
   
+    else:
+      # Use dz_zoom feature
+      axis_dict['zoom_begin'] = self.params.get('zoom_begin',None)
+      axis_dict['zoom_end']  = self.params.get('zoom_end',None)
+      if axis_dict['zoom_begin'] not in [None, '', []]:
+        axis_dict['bound_start'] = DateTime(axis_dict['zoom_begin'])
+      else:
+        axis_dict['bound_start'] =  None #min([i[0] for i in self.secondary_axis_occurence])
+      if axis_dict['zoom_end'] not in [None, '', []]:
+        axis_dict['bound_stop'] = DateTime(axis_dict['zoom_end'])
+      else:
+        axis_dict['bound_stop'] =  None #max([i[1] for i in self.secondary_axis_occurence])
+      if axis_dict['bound_start'] is None:
+        validate_method = getattr(self.context, 'planning_validate_date_list', None)
+        axis_dict['bound_start'], axis_dict['bound_stop'] = \
+                            validate_method( DateTime(), axis_dict['zoom_level'])
+  
+      # For Keep compatibility
+      axis_dict['zoom_begin'] = axis_dict['bound_start']
+      axis_dict['zoom_end'] = axis_dict['bound_stop']
+      axis_dict['bound_end'] =  axis_dict['bound_stop']
+      axis_dict['bound_begin'] = axis_dict['bound_start']
+      axis_dict['bound_range'] = axis_dict['bound_end'] - \
+                                  axis_dict['bound_begin']
+      self.params['zoom_level'] = axis_dict['zoom_level']
     # everything is OK, returning 'true' flag
     return 1
 
+
   def getMainAxisInfo(self, axis_dict):
     """
     Getting main axis properties (total pages, current page, groups per page)
@@ -1812,7 +1837,6 @@ class BasicGroup:
   *BasicGroup instance itself can hold other BasicGroups in case of
   ReportTree mode to handle child groups.
   """
-
   def __init__ (self, title='', name='',url='', constraints='', depth=0,
                 position=0, field = None, object = None, is_open=0,
                 is_pure_summary=1, secondary_axis_start=None,
@@ -1890,9 +1914,7 @@ class BasicGroup:
       for activity_content in activity_list:
         # interpreting results and getting begin and end values from
         # previously recovered method
-        block_begin = None
-        block_end = None
-
+        block_begin = block_end = None
         obj = activity_content.getObject()
         _marker = []
 
@@ -2036,7 +2058,6 @@ class BasicGroup:
                                    error=error,
                                    property_dict=self.property_dict)
 
-
           # adding new activity to personal group activity list
           try:
             self.basic_activity_list.append(activity)
@@ -2251,32 +2272,26 @@ class PlanningStructure:
       axis_stop = self.secondary_axis.stop
       axis_start = self.secondary_axis.start
 
-    axis_script=getattr(basic_structure.context,
-                        field.get_value('sec_axis_script'),None)
-    if axis_script is None:
-      # ERROR
-      # XXX Shouldn't planning box failed in this case, because of bad config ?
-      message = 'unable to find secondary axis generation script : "%s" does \
-             not exist' % field.get_value('sec_axis_script')
-      return [(Message(domain='erp5_ui', message=message, mapping=None))]
-
     # calling script to get list of delimiters to implement
     # just need to pass start, stop, and the minimum number of delimiter
     # wanted. a structure is returned : list of delimiters, each delimiter
     # defined by a dictionary
-    try:
+    axis_script=getattr(basic_structure.context,
+                        field.get_value('sec_axis_script'),None)
+    if axis_script is None:
+      delimiter_list = [ ]
+    else:
       delimiter_list = axis_script(axis_start=axis_start,
                                  axis_stop=axis_stop,
                                  delimiter_min_number=delimiter_min_number,
                                  form_id = basic_structure.form.id,
                                  selection_name = basic_structure.selection_name)
-    except (ArithmeticError, LookupError, AttributeError, TypeError):
+    #except (ArithmeticError, LookupError, AttributeError, TypeError):
       # XXX Seems that too many error are catched
       # XXX Shouldn't planning box failed in this case, because of bad config ?
-      message =  'error raised in secondary axis generation script : please \
-            check "%s"'% field.get_value('sec_axis_script')
-      return [(Message(domain='erp5_ui', message=message,mapping=None))]
-
+    #  message =  'error raised in secondary axis generation script : please \
+    #        check "%s"'% field.get_value('sec_axis_script')
+    #  return [(Message(domain='erp5_ui', message=message,mapping=None))]
     axis_stop = int(axis_stop)
     axis_start = int(axis_start)
     axis_range = axis_stop - axis_start
@@ -2465,6 +2480,8 @@ class PlanningStructure:
       except AttributeError:
         self.main_axis.axis_group = []
         self.main_axis.axis_group.append(axis_group)
+    if axis_element_already_present == 0:
+      return 1
     return axis_element_already_present
 
 

product/ERP5Form/SelectionTool.py

@@ -647,26 +647,52 @@ 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)
+
+        # 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,
+        return self._redirectToOriginalForm(REQUEST=REQUEST,
+                                            form_id=form_id,
                                             query_string=query_string)
 
     security.declareProtected(ERP5Permissions.View, 'setZoom')
@@ -692,17 +718,31 @@ 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,
+        return self._redirectToOriginalForm(REQUEST=REQUEST,
+                                            form_id=form_id,
                                              query_string=query_string)
 
     security.declareProtected(ERP5Permissions.View, 'previousZoom')
@@ -710,17 +750,31 @@ class SelectionTool( BaseTool, UniqueObject, SimpleItem ):
       """
       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 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,
+        return self._redirectToOriginalForm(REQUEST=REQUEST,
+                                            form_id=form_id,
                                              query_string=query_string)
     
     security.declareProtected(ERP5Permissions.View, 'setDomainRoot')
@@ -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: