Build per combination of path/explanation.

In order to minimise amount of non merged documents build each combination of path
and (closest) explanation in one shot and lock this building.

Note: As it is impossible to create AND-ed transaction level lock SimulationMovement_buildVifib
method is "unsafe" to be called in separate transactions.

master/bt5/vifib_slap/SkinTemplateItem/portal_skins/vifib_slap/Alarm_buildVifibPath.xml

@@ -61,6 +61,7 @@ kw.update(\n
 \n
 context.getPortalObject().portal_catalog.searchAndActivate(\n
   method_id=\'SimulationMovement_buildVifib\',\n
+  packet_size=1, # Separate calls to many transactions\n
   method_kw={\'tag\': tag},\n
   activate_kw={\'tag\': tag},\n
   **kw\n

master/bt5/vifib_slap/SkinTemplateItem/portal_skins/vifib_slap/SimulationMovement_buildVifib.xml

@@ -50,13 +50,23 @@
         </item>
         <item>
             <key> <string>_body</string> </key>
-            <value> <string>if context.getDelivery() is not None:\n
+            <value> <string>"""\n
+Take care!\n
+\n
+This method does not lock in same transaction, as it locks on two different documents (and only on those two)\n
+"""\n
+if context.getDelivery() is not None:\n
   # movement build but not indexed, so do nothing\n
   return\n
 \n
 root_applied_rule = context.getRootAppliedRule()\n
 \n
-context.getCausalityValue(portal_type=\'Business Link\').build(path=\'%s/%%\' % root_applied_rule.getPath(), activate_kw={\'tag\': tag})\n
+business_link = context.getCausalityValue(portal_type=\'Business Link\')\n
+explanation = context.getImmediateExplanationValue()\n
+lock_tag = \'build_in_progress_%s_%s\' % (explanation.getUid(), business_link.getUid())\n
+if context.getPortalObject().portal_activities.countMessageWithTag(lock_tag) == 0:\n
+  business_link.build(explanation=explanation, activate_kw={\'tag\': tag})\n
+  explanation.activate(activity=\'SQLQueue\', after_tag=tag, tag=lock_tag).getId()\n
 </string> </value>
         </item>
         <item>

master/bt5/vifib_slap/bt/revision

-694
\ No newline at end of file
+695
\ No newline at end of file