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from ivle.webapp.base.views import XHTMLView
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from ivle.webapp.base.plugins import BasePlugin
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from ivle.webapp.errors import NotFound
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from ivle.database import Subject
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from ivle import util
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"""Handler for the Subjects application. Links to subject home pages."""
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req.styles = ["media/subjects/subjects.css"]
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handle_toplevel_menu(req)
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handle_subject_page(req, req.path)
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def handle_toplevel_menu(req):
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# This is represented as a directory. Redirect and add a slash if it is
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if req.uri[-1] != '/':
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req.throw_redirect(req.uri + '/')
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(enrolled_subjects, unenrolled_subjects) = \
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ivle.db.DB().get_subjects_status(req.user.login)
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def print_subject(subject):
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if subject['url'] is None:
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req.write(' <li>%s (no home page)</li>\n'
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% cgi.escape(subject['subj_name']))
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req.write(' <li><a href="%s">%s</a></li>\n'
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% (cgi.escape(subject['url']),
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cgi.escape(subject['subj_name'])))
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req.content_type = "text/html"
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req.write_html_head_foot = True
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req.write('<div id="ivle_padding">\n')
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req.write("<h2>IVLE Subject Homepages</h2>\n")
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req.write("<h2>Subjects</h2>\n<ul>\n")
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for subject in enrolled_subjects:
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print_subject(subject)
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if len(unenrolled_subjects) > 0:
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req.write("<h3>Other Subjects</h3>\n")
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req.write("<p>You are not currently enrolled in these subjects</p>\n")
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for subject in unenrolled_subjects:
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print_subject(subject)
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def handle_subject_page(req, path):
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req.content_type = "text/html"
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req.write_html_head_foot = True # Have dispatch print head and foot
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# Just make the iframe pointing to media/subjects
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serve_loc = util.make_path(os.path.join('media', 'subjects', path))
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req.write('<object class="fullscreen" type="text/html" \
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data="%s"></iframe>'% urllib.quote(serve_loc))
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class SubjectsView(XHTMLView):
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'''The view of the list of subjects.'''
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app_template = 'subjects.html'
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def populate(self, req, ctx):
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req.styles = ["media/subjects/subjects.css"]
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enrolled_subjects = req.user.subjects
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unenrolled_subjects = [subject for subject in
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req.store.find(Subject)
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if subject not in enrolled_subjects]
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ctx['enrolled_subjects'] = []
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ctx['other_subjects'] = []
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req.content_type = "text/html"
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req.write_html_head_foot = True
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for subject in enrolled_subjects:
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new_subj['name'] = subject.name
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new_subj['url'] = subject.url
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ctx['enrolled_subjects'].append(new_subj)
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if len(unenrolled_subjects) > 0:
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for subject in unenrolled_subjects:
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new_subj['name'] = subject.name
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new_subj['url'] = subject.url
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ctx['other_subjects'].append(new_subj)
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class SubjectView(XHTMLView):
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'''The view of a subject.'''
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app_template = 'subject.html'
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appname = 'subjects' # XXX
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def __init__(self, req, subject, path):
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self.subject = req.store.find(Subject, code=subject).one()
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def populate(self, req, ctx):
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if self.subject is None:
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ctx['serve_loc'] = urllib.quote(util.make_path(os.path.join('media',
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'subjects', self.subject.code, self.path)))
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class Plugin(BasePlugin):
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('subjects/', SubjectsView),
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('subjects/:subject', SubjectView, {'path': ''}),
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('subjects/:subject/*(path)', SubjectView),