141 lines
5.2 KiB
Python
141 lines
5.2 KiB
Python
'''
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dogfood.py
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For using mitx / edX / i4x in checking itself.
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df_capa_problem: accepts an XML file for a problem, and renders it.
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'''
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import logging
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import datetime
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import re
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import os # FIXME - use OSFS instead
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from fs.osfs import OSFS
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from django.conf import settings
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from django.contrib.auth.models import User
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from django.core.context_processors import csrf
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from django.core.mail import send_mail
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from django.http import Http404
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from django.http import HttpResponse
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from django.shortcuts import redirect
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from mitxmako.shortcuts import render_to_response, render_to_string
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import courseware.capa.calc
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import track.views
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from lxml import etree
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from courseware.module_render import render_module, make_track_function, I4xSystem
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from multicourse import multicourse_settings
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from util.cache import cache
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import courseware.content_parser as content_parser
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import courseware.modules
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from courseware.views import quickedit
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log = logging.getLogger("mitx.courseware")
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etree.set_default_parser(etree.XMLParser(dtd_validation=False, load_dtd=False,
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remove_comments = True))
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DOGFOOD_COURSENAME = 'edx_dogfood' # FIXME - should not be here; maybe in settings
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def update_problem(pfn,pxml,coursename=None,overwrite=True,filestore=None):
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'''
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update problem with filename pfn, and content (xml) pxml.
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'''
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if not filestore:
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if not coursename: coursename = DOGFOOD_COURSENAME
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xp = multicourse_settings.get_course_xmlpath(coursename) # path to XML for the course
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pfn2 = settings.DATA_DIR + xp + 'problems/%s.xml' % pfn
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fp = open(pfn2,'w')
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else:
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pfn2 = 'problems/%s.xml' % pfn
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fp = filestore.open(pfn2,'w')
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if os.path.exists(pfn2) and not overwrite: return # don't overwrite if already exists and overwrite=False
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pxmls = pxml if type(pxml) in [str,unicode] else etree.tostring(pxml,pretty_print=True)
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fp.write(pxmls)
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fp.close()
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def df_capa_problem(request, id=None):
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'''
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dogfood capa problem.
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Accepts XML for a problem, inserts it into the dogfood course.xml.
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Returns rendered problem.
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'''
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# "WARNING: UNDEPLOYABLE CODE. FOR DEV USE ONLY."
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if settings.DEBUG:
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print '[lib.dogfood.df_capa_problem] id=%s' % id
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if not 'coursename' in request.session:
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coursename = DOGFOOD_COURSENAME
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else:
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coursename = request.session['coursename']
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xp = multicourse_settings.get_course_xmlpath(coursename) # path to XML for the course
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# Grab the XML corresponding to the request from course.xml
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module = 'problem'
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try:
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xml = content_parser.module_xml(request.user, module, 'id', id, coursename)
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except Exception,err:
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print "[lib.dogfood.df_capa_problem] error in calling content_parser: %s" % err
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xml = None
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# if problem of given ID does not exist, then create it
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# do this only if course.xml has a section named "DogfoodProblems"
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if not xml:
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m = re.match('filename([A-Za-z0-9_]+)$',id) # extract problem filename from ID given
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if not m:
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raise Exception,'[lib.dogfood.df_capa_problem] Illegal problem id %s' % id
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pfn = m.group(1)
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print '[lib.dogfood.df_capa_problem] creating new problem pfn=%s' % pfn
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# add problem to course.xml
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fn = settings.DATA_DIR + xp + 'course.xml'
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xml = etree.parse(fn)
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seq = xml.find('chapter/section[@name="DogfoodProblems"]/sequential') # assumes simplistic course.xml structure!
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if seq==None:
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raise Exception,"[lib.dogfood.views.df_capa_problem] missing DogfoodProblems section in course.xml!"
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newprob = etree.Element('problem')
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newprob.set('type','lecture')
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newprob.set('showanswer','attempted')
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newprob.set('rerandomize','never')
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newprob.set('title',pfn)
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newprob.set('filename',pfn)
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newprob.set('name',pfn)
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seq.append(newprob)
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fp = open(fn,'w')
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fp.write(etree.tostring(xml,pretty_print=True)) # write new XML
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fp.close()
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# now create new problem file
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# update_problem(pfn,'<problem>\n<text>\nThis is a new problem\n</text>\n</problem>\n',coursename,overwrite=False)
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# reset cache entry
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user = request.user
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groups = content_parser.user_groups(user)
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options = {'dev_content':settings.DEV_CONTENT,
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'groups' : groups}
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filename = xp + 'course.xml'
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cache_key = filename + "_processed?dev_content:" + str(options['dev_content']) + "&groups:" + str(sorted(groups))
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print '[lib.dogfood.df_capa_problem] cache_key = %s' % cache_key
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#cache.delete(cache_key)
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tree = content_parser.course_xml_process(xml) # add ID tags
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cache.set(cache_key,etree.tostring(tree),60)
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# settings.DEFAULT_GROUPS.append('dev') # force content_parser.course_file to not use cache
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xml = content_parser.module_xml(request.user, module, 'id', id, coursename)
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if not xml:
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print "[lib.dogfood.df_capa_problem] problem xml not found!"
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# add problem ID to list so that is_staff check can be bypassed
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request.session['dogfood_id'] = id
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# hand over to quickedit to do the rest
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return quickedit(request,id=id,qetemplate='dogfood.html',coursename=coursename)
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