accounting: suggest date based on trade conditions in create related payment

This introduce a new utility script Invoice_getDueDate

bt5/erp5_accounting/SkinTemplateItem/portal_skins/erp5_accounting/Invoice_getDueDate.py

+from DateTime import DateTime
+
+source = False
+if context.getPortalType() in ('Purchase Invoice', 'Purchase Invoice Transaction',):
+  source = False
+elif context.getPortalType() in ('Sale Invoice', 'Sale Invoice Transaction',):
+  source = True
+else: # internal invoices
+  source = context.AccountingTransaction_isSourceView()
+
+delivery = context
+payment_condition = context.getSpecialiseValue().getDefaultPaymentConditionValue()
+
+# Absolute payment date has priority
+if payment_condition.getPaymentDate():
+  return payment_condition.getPaymentDate()
+
+def OrderDateGetter(invoice):
+  def getter():
+    packing_list = invoice.getCausalityValue(
+                     portal_type=context.getPortalDeliveryTypeList())
+    if packing_list:
+      order = packing_list.getCausalityValue(
+                     portal_type=context.getPortalOrderTypeList())
+      return order.getStartDate() if source else order.getStopDate()
+  return getter
+
+def PackingListDateGetter(invoice):
+  def getter():
+    packing_list = invoice.getCausalityValue(
+                     portal_type=context.getPortalDeliveryTypeList())
+    if packing_list:
+      return packing_list.getStartDate() if source else packing_list.getStopDate()
+  return getter
+
+case = {
+  'invoice': delivery.getStartDate if source else delivery.getStopDate,
+  'order': OrderDateGetter(delivery),
+  'packing list': PackingListDateGetter(delivery),
+}
+
+due_date = case.get(payment_condition.getTradeDate(), delivery.getStartDate)()
+if not due_date:
+  return None
+due_date += payment_condition.getPaymentTerm(0)
+
+pat = payment_condition.getPaymentAdditionalTerm()
+
+if payment_condition.getPaymentEndOfMonth():
+  i = 0
+  month = due_date.month()
+  while (month == (due_date + i).month()):
+    i += 1
+  due_date = (due_date + i - 1)
+  if pat:
+    due_date += pat
+else:
+  if pat:
+    i = 0
+    month = due_date.month()
+    while (month == (due_date + i).month()):
+      i -= 1
+    due_date = (due_date + i + pat)
+
+return due_date

bt5/erp5_accounting/SkinTemplateItem/portal_skins/erp5_accounting/Invoice_getDueDate.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>Invoice_getDueDate</string> </value>
+        </item>
+      </dictionary>
+    </pickle>
+  </record>
+</ZopeData>

bt5/erp5_accounting/SkinTemplateItem/portal_skins/erp5_accounting/Invoice_viewCreateRelatedPaymentTransactionDialog/your_date.xml

@@ -9,7 +9,9 @@
         <item>
             <key> <string>delegated_list</string> </key>
             <value>
-              <list/>
+              <list>
+                <string>default</string>
+              </list>
             </value>
         </item>
         <item>
@@ -50,6 +52,12 @@
             <key> <string>tales</string> </key>
             <value>
               <dictionary>
+                <item>
+                    <key> <string>default</string> </key>
+                    <value>
+                      <persistent> <string encoding="base64">AAAAAAAAAAI=</string> </persistent>
+                    </value>
+                </item>
                 <item>
                     <key> <string>field_id</string> </key>
                     <value> <string></string> </value>
@@ -69,6 +77,12 @@
             <key> <string>values</string> </key>
             <value>
               <dictionary>
+                <item>
+                    <key> <string>default</string> </key>
+                    <value>
+                      <none/>
+                    </value>
+                </item>
                 <item>
                     <key> <string>field_id</string> </key>
                     <value> <string>your_date</string> </value>
@@ -87,4 +101,17 @@
       </dictionary>
     </pickle>
   </record>
+  <record id="2" aka="AAAAAAAAAAI=">
+    <pickle>
+      <global name="TALESMethod" module="Products.Formulator.TALESField"/>
+    </pickle>
+    <pickle>
+      <dictionary>
+        <item>
+            <key> <string>_text</string> </key>
+            <value> <string>context/Invoice_getDueDate</string> </value>
+        </item>
+      </dictionary>
+    </pickle>
+  </record>
 </ZopeData>