erp5_interface_post: cleanup around _getFirstPartFromMultipartMessage

bt5/erp5_interface_post/SkinTemplateItem/portal_skins/erp5_interface_post/Base_getFirstPartFromMultipartMessage.py

-"""
-This script can be used to give a preview of an Internet Mail Message.
-Usually, the data is a multipart message (at least ERP5 only create
-multipart message). As for users don't want a fidel representation of
-the message, but a preview, we assume that rendering the first part
-of the multipart message is enough.
-"""
-import email
-
-message = email.message_from_string(data)
-
-payload = message.get_payload()
-
-while isinstance(payload, list):
-  payload = payload[0].get_payload(decode=True)
-
-return payload

bt5/erp5_interface_post/SkinTemplateItem/portal_skins/erp5_interface_post/ERP5Site_getFirstPartFromMultipartMessage.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>data</string> </value>
-        </item>
-        <item>
-            <key> <string>id</string> </key>
-            <value> <string>ERP5Site_getFirstPartFromMultipartMessage</string> </value>
-        </item>
-      </dictionary>
-    </pickle>
-  </record>
-</ZopeData>

bt5/erp5_interface_post/SkinTemplateItem/portal_skins/erp5_interface_post/ERP5Site_getFirstPartFromMultipartMessage.py → bt5/erp5_interface_post/SkinTemplateItem/portal_skins/erp5_interface_post/InternetMessagePost_getFirstPartFromMultipartMessage.py

@@ -7,7 +7,7 @@ of the multipart message is enough.
 """
 import email
 
-message = email.message_from_string(data)
+message = email.message_from_string(context.getData())
 
 payload = message.get_payload()
 

bt5/erp5_interface_post/SkinTemplateItem/portal_skins/erp5_interface_post/Base_getFirstPartFromMultipartMessage.xml → bt5/erp5_interface_post/SkinTemplateItem/portal_skins/erp5_interface_post/InternetMessagePost_getFirstPartFromMultipartMessage.xml

@@ -50,11 +50,11 @@
         </item>
         <item>
             <key> <string>_params</string> </key>
-            <value> <string>data</string> </value>
+            <value> <string></string> </value>
         </item>
         <item>
             <key> <string>id</string> </key>
-            <value> <string>Base_getFirstPartFromMultipartMessage</string> </value>
+            <value> <string>InternetMessagePost_getFirstPartFromMultipartMessage</string> </value>
         </item>
       </dictionary>
     </pickle>

bt5/erp5_interface_post/SkinTemplateItem/portal_skins/erp5_interface_post/InternetMessagePost_viewPreview/your_preview.xml

@@ -104,7 +104,7 @@
       <dictionary>
         <item>
             <key> <string>_text</string> </key>
-            <value> <string>python: here.ERP5Site_getFirstPartFromMultipartMessage(here.getData())</string> </value>
+            <value> <string>here/InternetMessagePost_getFirstPartFromMultipartMessage</string> </value>
         </item>
       </dictionary>
     </pickle>

bt5/erp5_interface_post/SkinTemplateItem/portal_skins/erp5_interface_post/MailMessage_viewPreview/my_text_content.xml

@@ -136,7 +136,7 @@
       <dictionary>
         <item>
             <key> <string>_text</string> </key>
-            <value> <string>python:(here.getTextContent() if here.getSimulationState() not in (\'started\', \'stopped\', \'delivered\') else here.Base_getFirstPartFromMultipartMessage(here.MailMessage_getLatestInternetMessagePostValue().getData()))</string> </value>
+            <value> <string>python:(here.getTextContent() if here.getSimulationState() not in (\'started\', \'stopped\', \'delivered\') else here.MailMessage_getLatestInternetMessagePostValue().InternetMessagePost_getFirstPartFromMultipartMessage())</string> </value>
         </item>
       </dictionary>
     </pickle>