265 lines
9.1 KiB
Python
265 lines
9.1 KiB
Python
from django.http import HttpResponse
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from django.template import Context, loader
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from djangomako.shortcuts import render_to_response, render_to_string
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from xml.dom.minidom import parse, parseString
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import json, os, sys
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from django.core.context_processors import csrf
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from django.template import Context
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from django.contrib.auth.models import User
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from auth.models import UserProfile
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from django.shortcuts import redirect
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import StringIO
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from django.http import Http404
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import urllib
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import capa_module
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import video_module
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from models import StudentModule
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import urllib
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from django.conf import settings
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import content_parser
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import uuid
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template_imports={'urllib':urllib}
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def profile(request):
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''' User profile. Show username, location, etc, as well as grades .
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We need to allow the user to change some of these settings .'''
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if not request.user.is_authenticated():
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return redirect('/')
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dom=parse(settings.DATA_DIR+'course.xml')
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hw=[]
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course = dom.getElementsByTagName('course')[0]
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chapters = course.getElementsByTagName('chapter')
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responses=StudentModule.objects.filter(student=request.user)
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for c in chapters:
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for s in c.getElementsByTagName('section'):
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problems=s.getElementsByTagName('problem')
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scores=[]
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if len(problems)>0:
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for p in problems:
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id = p.getAttribute('filename')
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correct = 0
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for response in responses:
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if response.module_id == id:
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if response.grade!=None:
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correct=response.grade
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else:
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correct=0
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total=capa_module.LoncapaModule(p.toxml(), "id").max_score() # TODO: Add state. Not useful now, but maybe someday problems will have randomized max scores?
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scores.append((int(correct),total))
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score={'course':course.getAttribute('name'),
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'section':s.getAttribute("name"),
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'chapter':c.getAttribute("name"),
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'scores':scores,
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}
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hw.append(score)
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user_info=UserProfile.objects.get(user=request.user)
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context={'name':user_info.name,
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'username':request.user.username,
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'location':user_info.location,
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'language':user_info.language,
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'email':request.user.email,
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'homeworks':hw,
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'csrf':csrf(request)['csrf_token']
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}
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return render_to_response('profile.html', context)
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def render_accordion(request,course,chapter,section):
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''' Draws navigation bar. Takes current position in accordion as
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parameter. Returns (initialization_javascript, content)'''
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def format_string(string):
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return urllib.quote(string.replace(' ','_'))
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toc=content_parser.toc_from_xml(chapter, section)
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active_chapter=1
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for i in range(len(toc)):
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if toc[i]['active']:
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active_chapter=i
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context=dict([['active_chapter',active_chapter],
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['toc',toc],
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['course_name',course],
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['format_string',format_string]]+ \
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template_imports.items())
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return {'init_js':render_to_string('accordion_init.js',context),
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'content':render_to_string('accordion.html',context)}
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def html_module(request, module):
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''' Show basic text
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'''
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template_source=module.getAttribute('filename')
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return {'content':render_to_string(template_source, {})}
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def vertical_module(request, module):
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''' Layout module which lays out content vertically.
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'''
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contents=[(e.getAttribute("name"),render_module(request, e)) \
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for e in module.childNodes \
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if e.nodeType==1]
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js="".join([e[1]['init_js'] for e in contents if 'init_js' in e[1]])
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return {'init_js':js,
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'content':render_to_string('vert_module.html',{'items':contents})}
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def seq_module(request, module):
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''' Layout module which lays out content in a temporal sequence
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'''
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def j(m):
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# jsonify contents so it can be embedded in a js array
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# We also need to split </script> tags so they don't break
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# mid-string
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if 'init_js' not in m: m['init_js']=""
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content=json.dumps(m['content'])
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content=content.replace('</script>', '<"+"/script>')
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return {'content':content, 'init_js':m['init_js']}
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contents=[(e.getAttribute("name"),j(render_module(request, e))) \
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for e in module.childNodes \
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if e.nodeType==1]
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js="".join([e[1]['init_js'] for e in contents if 'init_js' in e[1]])
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iid=uuid.uuid1().hex
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params={'items':contents,
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'id':"seq"}
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print module.nodeName
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if module.nodeName == 'sequential':
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return {'init_js':js+render_to_string('seq_module.js',params),
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'content':render_to_string('seq_module.html',params)}
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if module.nodeName == 'tab':
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return {'init_js':js+render_to_string('tab_module.js',params),
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'content':render_to_string('tab_module.html',params)}
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modx_modules={'problem':capa_module.LoncapaModule, 'video':video_module.VideoModule}
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def render_x_module(request, xml_module):
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''' Generic module for extensions. This renders to HTML. '''
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# Check if problem has an instance in DB
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module_type=xml_module.nodeName
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module_class=modx_modules[module_type]
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module_id=xml_module.getAttribute(module_class.id_attribute)
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# Grab state from database
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s = StudentModule.objects.filter(student=request.user,
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module_id=module_id,
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module_type = module_type)
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if len(s) == 0: # If nothing in the database...
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state=None
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else:
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smod = s[0]
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state = smod.state
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# Create a new instance
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ajax_url = '/modx/'+module_type+'/'+module_id+'/'
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instance=module_class(xml_module.toxml(),
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module_id,
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ajax_url=ajax_url,
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state=state)
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# If instance wasn't already in the database, create it
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if len(s) == 0:
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smod=StudentModule(student=request.user,
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module_type = module_type,
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module_id=module_id,
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state=instance.get_state(),
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xml=instance.xml)
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# Grab content
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content = {'content':instance.get_html(),
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'init_js':instance.get_init_js()}
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smod.save() # This may be optional (at least in the case of no instance in the dB)
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return content
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def modx_dispatch(request, module=None, dispatch=None, id=None):
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''' Generic module for extensions. '''
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s = StudentModule.objects.filter(module_type=module, student=request.user, module_id=id)
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if len(s) == 0:
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raise Http404
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s=s[0]
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dispatch=dispatch.split('?')[0]
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ajax_url = '/modx/'+module+'/'+id+'/'
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instance=modx_modules[module](s.xml, s.module_id, ajax_url=ajax_url, state=s.state)
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html=instance.handle_ajax(dispatch, request.GET)
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s.state=instance.get_state()
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s.grade=instance.get_score()['score']
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s.save()
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return HttpResponse(html)
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module_types={'video':render_x_module,
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'html':html_module,
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'tab':seq_module,
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'vertical':vertical_module,
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'sequential':seq_module,
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'problem':render_x_module,
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}
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#'lab':lab_module,
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def render_module(request, module):
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''' Generic dispatch for internal modules. '''
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if module==None:
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return {"content":""}
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if str(module.localName) in module_types:
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return module_types[module.localName](request, module)
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return {"content":""}
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def index(request, course="6.002 Spring 2012", chapter="Using the System", section="Hints"):
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''' Displays courseware accordion, and any associated content.
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'''
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if not request.user.is_authenticated():
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return redirect('/')
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# Fixes URLs -- we don't get funny encoding characters from spaces
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# so they remain readable
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course=course.replace("_"," ")
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chapter=chapter.replace("_"," ")
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section=section.replace("_"," ")
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# HACK: Force course to 6.002 for now
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# Without this, URLs break
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if course!="6.002 Spring 2012":
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return redirect('/')
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dom=parse(settings.DATA_DIR+'course.xml')
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dom_course=content_parser.dom_select(dom, 'course', course)
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dom_chapter=content_parser.dom_select(dom_course, 'chapter', chapter)
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dom_section=content_parser.dom_select(dom_chapter, 'section', section)
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if dom_section!=None:
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module=[e for e in dom_section.childNodes if e.nodeType==1][0]
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else:
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module=None
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accordion=render_accordion(request, course, chapter, section)
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module=render_module(request, module)
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if 'init_js' not in module:
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module['init_js']=''
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context={'init':accordion['init_js']+module['init_js'],
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'accordion':accordion['content'],
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'content':module['content']}
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return render_to_response('courseware.html', context)
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