Allow setting default archive folder

Introduce defaultArchiveId to config.py

See #91

99-meta/config.py.example

@@ -3,6 +3,9 @@ from klausurarchiv.config_base import *
 ## \brief See klausurarchiv/config.py#deposits
 deposits=["Studierendenausweis", "Semesterticket", "Führerschein", "10 €"]
 
+## \brief See klausurarchiv/config.py#defaultArchiveId
+defaultArchiveId=None
+
 ## \brief See klausurarchiv/config.py#printPDFFile
 def printPDFFile(filename,count):
   # todo: implement this method, it should issue a print job on your trusty

src/python/klausurarchiv/config.py

@@ -36,6 +36,15 @@ fn_config=os.path.join(
 # common ones.
 deposits=[]
 
+## \brief Default archive folder
+#
+# Multiple folders can be marked as archive folders (see \ref
+# _fn_99-meta_doc_concepts_folder-configuration_md). Use this setting to set
+# the ID of the default archive folder to use (type str; \ref
+# _fn_99-meta_doc_concepts_folders-and-exams_md). It will be selected by default
+# when trying to archive exams.
+defaultArchiveId=None
+
 ## \brief Deployment-specific method issuing a printjob of a single exam file.
 # 
 # This method is to be overwritten by the deployment-specific configuration
@@ -86,7 +95,8 @@ if os.path.exists(fn_config):
 
     setattr(ThisModule,k,getattr(m,k))
   
-  # special handling for non-method variable
-  if "deposits" in dir(m):
-    setattr(ThisModule,"deposits",getattr(m,"deposits"))
+  # special handling for non-method variables
+  for var in "deposits", "defaultArchiveId":
+    if var in dir(m):
+      setattr(ThisModule,var,getattr(m,var))