Fix "Speed up Optimization"

use by using "self" on transactional_cached decorator breaks ERP5Site creation due aq_base.

product/ERP5/Tool/TemplateTool.py

@@ -877,12 +877,15 @@ class TemplateTool (BaseTool):
 
     security.declareProtected(Permissions.AccessContentsInformation,
                                'getDependencyList')
-    @transactional_cached(lambda self, bt: (self, bt))
     def getDependencyList(self, bt):
       """
        Return the list of missing dependencies for a business
        template, given a tuple : (repository, id)
       """
+      # use by using "self" on transactional_cached decorator
+      # breaks ERP5Site creation due aq_base.
+      @transactional_cached(lambda bt: (bt))
+      def _getDependency(bt):
         # We do not take into consideration the dependencies
         # for meta business templates
         if bt[0] == 'meta':
@@ -892,7 +895,7 @@ class TemplateTool (BaseTool):
           if repository == bt[0]:
             for property_dict in property_dict_list:
               if property_dict['id'] == bt[1]:
-              dependency_list = property_dict['dependency_list']
+                dependency_list = [q for q in property_dict['dependency_list'] if q]
                 for dependency_couple in dependency_list:
                   # dependency_couple is like "erp5_xhtml_style (>= 0.2)"
                   dependency_couple_list = dependency_couple.split(' ', 1)
@@ -912,7 +915,7 @@ class TemplateTool (BaseTool):
                     try:
                       bt_dep = self.getLastestBTOnRepos(dependency, version_restriction)
                     except BusinessTemplateUnknownError:
-                    raise BusinessTemplateMissingDependency, 'The following dependency could not be satisfied: %s (%s)\nReason: Business Template could not be found in the repositories'%(dependency, version_restriction or '')
+                      raise BusinessTemplateMissingDependency, 'While analysing %s the following dependency could not be satisfied: %s (%s)\nReason: Business Template could not be found in the repositories'%(bt[1], dependency, version_restriction or '')
                     except BusinessTemplateIsMeta:
                       provider_list = self.getProviderList(dependency)
                       for provider in provider_list:
@@ -929,6 +932,8 @@ class TemplateTool (BaseTool):
                 return result_list
         raise BusinessTemplateUnknownError, 'The Business Template %s could not be found on repository %s'%(bt[1], bt[0])
 
+      return _getDependency(bt)
+
     def findProviderInBTList(self, provider_list, bt_list):
       """
        Find one provider in provider_list which is present in