erp5_document_scanner: Avoid reference hardcoded in many places

bt5/erp5_document_scanner/SkinTemplateItem/portal_skins/erp5_document_scanner/ActiveProcess_removeItselfFromActivityTool.py

 assert context.getPortalType() == "Active Process", "It must be an Active Process"
-assert context.getReference() == "document_scanner_js", "Unexpected reference"
+assert context.getReference() == context.Base_getDocumentScannerDefaultReference(), "Unexpected reference"
 
 context.getPortalObject().portal_activities.manage_delObjects(
   ids=[context.getId(),])

bt5/erp5_document_scanner/SkinTemplateItem/portal_skins/erp5_document_scanner/Alarm_removeOutdatedActiveProcess.py

@@ -3,7 +3,7 @@ portal = context.getPortalObject()
 portal.portal_catalog.searchAndActivate(
   portal_type=["Active Process",],
   method_id='ActiveProcess_removeItselfFromActivityTool',
-  reference="document_scanner_js",
+  reference=context.Base_getDocumentScannerDefaultReference(),
   # Active Process don't have creation date set
-  indexation_timestamp="< %s" % (DateTime()-4).earliestTime(),
+  modification_date="< %s" % (DateTime()-4).earliestTime(),
 )

bt5/erp5_document_scanner/SkinTemplateItem/portal_skins/erp5_document_scanner/Base_getDefaultBackendDataAsJSON.py

 import json
 
-active_process = context.getPortalObject().portal_activities.newActiveProcess()
+active_process = context.getPortalObject().portal_activities.newActiveProcess(
+  reference=context.Base_getDocumentScannerDefaultReference())
 
 return json.dumps({
   "active_process": active_process.getRelativeUrl(),

bt5/erp5_document_scanner/SkinTemplateItem/portal_skins/erp5_document_scanner/Base_getDocumentScannerDefaultReference.py

+return "document_scanner_js"

bt5/erp5_document_scanner/SkinTemplateItem/portal_skins/erp5_document_scanner/Base_getDocumentScannerDefaultReference.xml

+<?xml version="1.0"?>
+<ZopeData>
+  <record id="1" aka="AAAAAAAAAAE=">
+    <pickle>
+      <global name="PythonScript" module="Products.PythonScripts.PythonScript"/>
+    </pickle>
+    <pickle>
+      <dictionary>
+        <item>
+            <key> <string>Script_magic</string> </key>
+            <value> <int>3</int> </value>
+        </item>
+        <item>
+            <key> <string>_bind_names</string> </key>
+            <value>
+              <object>
+                <klass>
+                  <global name="NameAssignments" module="Shared.DC.Scripts.Bindings"/>
+                </klass>
+                <tuple/>
+                <state>
+                  <dictionary>
+                    <item>
+                        <key> <string>_asgns</string> </key>
+                        <value>
+                          <dictionary>
+                            <item>
+                                <key> <string>name_container</string> </key>
+                                <value> <string>container</string> </value>
+                            </item>
+                            <item>
+                                <key> <string>name_context</string> </key>
+                                <value> <string>context</string> </value>
+                            </item>
+                            <item>
+                                <key> <string>name_m_self</string> </key>
+                                <value> <string>script</string> </value>
+                            </item>
+                            <item>
+                                <key> <string>name_subpath</string> </key>
+                                <value> <string>traverse_subpath</string> </value>
+                            </item>
+                          </dictionary>
+                        </value>
+                    </item>
+                  </dictionary>
+                </state>
+              </object>
+            </value>
+        </item>
+        <item>
+            <key> <string>_params</string> </key>
+            <value> <string></string> </value>
+        </item>
+        <item>
+            <key> <string>id</string> </key>
+            <value> <string>Base_getDocumentScannerDefaultReference</string> </value>
+        </item>
+      </dictionary>
+    </pickle>
+  </record>
+</ZopeData>

bt5/erp5_document_scanner/SkinTemplateItem/portal_skins/erp5_document_scanner/Base_postDataToActiveResult.py

@@ -10,14 +10,15 @@ portal = context.getPortalObject()
 if REQUEST:
   return RuntimeError("You cannot run this script in the url")
 
+reference = context.Base_getDocumentScannerDefaultReference()
 if active_process_url:
   active_process = portal.restrictedTraverse(active_process_url)
 else:
-  active_process = portal.portal_activities.newActiveProcess()
-  active_process.setReference("document_scanner_js")
+  active_process = portal.portal_activities.newActiveProcess(
+    reference=reference)
 
 if generate_new_uid:
-  id_group = ('document_scanner_js', active_process.getUid())
+  id_group = (reference, active_process.getUid())
   new_uid = portal.portal_ids.generateNewId(id_group=id_group, default=0)
 else:
   new_uid = None