From 5f26adffda81efd315e69e6a2acb81195567e0ba Mon Sep 17 00:00:00 2001
From: Per-Erik Persson <pegpe@irt.kth.se>
Date: Wed, 28 Sep 2011 12:31:08 +0200
Subject: [PATCH 1/2] Enable questions to reference the anser of a previous
 answered question. The magic string subst_with_ans_1 will insert the answer
 from question one into your current question.

---
 example/settings.py     |  2 ++
 questionnaire/models.py |  4 +++-
 questionnaire/views.py  | 16 +++++++++++++---
 3 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/example/settings.py b/example/settings.py
index cf9574c..b3767f1 100644
--- a/example/settings.py
+++ b/example/settings.py
@@ -92,5 +92,7 @@ LANGUAGES = (
     ('de', 'Deutsch'),
 )
 
+REPLACEMENTSTRING = u'subst_with_ans_'
+
 try: from local_settings import *
 except: pass
diff --git a/questionnaire/models.py b/questionnaire/models.py
index fa65876..727f307 100644
--- a/questionnaire/models.py
+++ b/questionnaire/models.py
@@ -164,7 +164,9 @@ class RunInfo(models.Model):
             if key in cookies:
                 del cookies[key]
         else:
-            cookies[key] = str(value)
+            if type(value) == 'int':
+                value=str(value)
+            cookies[key] = value
         cstr = json.dumps(cookies)
         if len(cstr) > 512: # XXX - hard coded to match cookie length above
             raise Exception("Cannot set cookie. No more space in cookie jar!")
diff --git a/questionnaire/views.py b/questionnaire/views.py
index fe6165b..f2ab83e 100644
--- a/questionnaire/views.py
+++ b/questionnaire/views.py
@@ -314,6 +314,10 @@ def show_questionnaire(request, runinfo, errors={}):
     jstriggers = []
     qvalues = {}
     alignment=4
+    # initialize qvalues                                                                                                                               
+    for k,v in runinfo.get_cookiedict().items():
+        qvalues[k] = v
+
     for question in questions:
         Type = question.get_type()
         _qnum, _qalpha = split_numal(question.number)
@@ -328,6 +332,15 @@ def show_questionnaire(request, runinfo, errors={}):
             'qalpha_class' : _qalpha and (ord(_qalpha[-1]) % 2 \
                                           and ' alodd' or ' aleven') or '',
         }
+#If the question has a magic string surrounded by spaces that refers to an answer to a previous question, fetch the answer and replace the magic string
+#To be able to fetch the cookie with the answer it has to be stored using additional checks
+#At the moment it only works for english.
+        replacementtext=settings.REPLACEMENTSTRING
+        questionnumberpos=question.text.find(replacementtext)
+        if questionnumberpos <> -1:
+            questionnumber=question.text_en[questionnumberpos:].split(' ')[0].replace(replacementtext,'')
+            if questionnumber in qvalues.keys():
+                question.text_en=question.text_en.replace(replacementtext+questionnumber,qvalues[questionnumber])               
 
         if not question.newline():
             alignment = max(alignment, calc_alignment(question.text))
@@ -362,9 +375,6 @@ def show_questionnaire(request, runinfo, errors={}):
     if runinfo.questionset.sortid != 0:
         progress = get_progress(runinfo.questionset.sortid / float(total))
 
-    # initialize qvalues
-    for k,v in runinfo.get_cookiedict().items():
-        qvalues[k] = v
     if request.POST:
         for k,v in request.POST.items():
             if k.startswith("question_"):

From 17021b402d227af1efcf4aeec3b639b2a96940d7 Mon Sep 17 00:00:00 2001
From: Per-Erik Persson <pegpe@irt.kth.se>
Date: Wed, 28 Sep 2011 15:45:46 +0200
Subject: [PATCH 2/2] convert integers to str to allow them to be exported

---
 questionnaire/views.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/questionnaire/views.py b/questionnaire/views.py
index 8f9983c..57b8097 100644
--- a/questionnaire/views.py
+++ b/questionnaire/views.py
@@ -567,6 +567,8 @@ def answer_export(questionnaire, answers=None):
             subject = answer.subject
             row = [""] * len(headings)
         ans = answer.split_answer()
+        if type(ans) == int:
+            ans = str(ans) 
         for choice in ans:
             col = None
             if type(choice) == list: