lab support

courseware/capa/capa_problem.py

@@ -11,11 +11,12 @@ import calc, eia
 from util import contextualize_text
 
 from inputtypes import textline, schematic
-from responsetypes import numericalresponse, formularesponse, customresponse
+from responsetypes import numericalresponse, formularesponse, customresponse, schematicresponse
 
 response_types = {'numericalresponse':numericalresponse, 
                   'formularesponse':formularesponse,
-                  'customresponse':customresponse}
+                  'customresponse':customresponse,
+                  'schematicresponse':schematicresponse}
 entry_types = ['textline', 'schematic']
 response_properties = ["responseparam", "answer"]
 # How to convert from original XML to HTML
@@ -23,6 +24,7 @@ response_properties = ["responseparam", "answer"]
 html_transforms = {'problem': {'tag':'div'},
                    "numericalresponse": {'tag':'span'}, 
                    "customresponse": {'tag':'span'}, 
+                   "schematicresponse": {'tag':'span'}, 
                    "formularesponse": {'tag':'span'}, 
                    "text": {'tag':'span'}}
 
@@ -36,7 +38,7 @@ global_context={'random':random,
 # These should be removed from HTML output, including all subelements
 html_problem_semantics = ["responseparam", "answer", "script"]
 # These should be removed from HTML output, but keeping subelements
-html_skip = ["numericalresponse", "customresponse", "formularesponse", "text"]
+html_skip = ["numericalresponse", "customresponse", "schematicresponse", "formularesponse", "text"]
 # These should be transformed
 html_special_response = {"textline":textline.render,
                          "schematic":schematic.render}

courseware/capa/inputtypes.py

@@ -17,7 +17,19 @@ class schematic(object):
         eid = element.get('id')
         height = element.get('height')
         width = element.get('width')
-        context = {'id':eid, 'value':value, 'state':state, 'width':width, 'height':height}
+        parts = element.get('parts')
+        analyses = element.get('analyses')
+        initial_value = element.get('initial_value')
+        context = {
+            'id':eid,
+            'value':value,
+            'initial_value':initial_value,
+            'state':state,
+            'width':width,
+            'height':height,
+            'parts':parts,
+            'analyses':analyses,
+            }
         html=render_to_string("schematicinput.html", context)
         return etree.XML(html)
 

courseware/capa/responsetypes.py

-import random, numpy, math, scipy
+import random, numpy, math, scipy, json
 from util import contextualize_text
 from calc import evaluator
 import random, math
@@ -63,7 +63,6 @@ class customresponse(object):
         # be handled by capa_problem
         return {}
 
-
 class formularesponse(object):
     def __init__(self, xml, context):
         self.xml = xml
@@ -114,3 +113,28 @@ class formularesponse(object):
 
     def get_answers(self):
         return {self.answer_id:self.correct_answer}
+
+class schematicresponse(object):
+    def __init__(self, xml, context):
+        self.xml = xml
+        self.answer_ids = xml.xpath('//*[@id=$id]//schematic/@id',
+                                    id=xml.get('id'))
+        self.context = context
+        answer = xml.xpath('//*[@id=$id]//answer',
+                           id=xml.get('id'))[0]
+        answer_src = answer.get('src')
+        if answer_src != None:
+            self.code = open(settings.DATA_DIR+'src/'+answer_src).read()
+        else:
+            self.code = answer.text
+
+    def grade(self, student_answers):
+        submission = [json.loads(student_answers[k]) for k in sorted(self.answer_ids)]
+        self.context.update({'submission':submission})
+        exec self.code in global_context, self.context
+        return  zip(sorted(self.answer_ids), self.context['correct'])
+
+    def get_answers(self):
+        # Since this is explicitly specified in the problem, this will 
+        # be handled by capa_problem
+        return {}