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# -*- coding: utf-8 -*-
import os, sys
from flask import Blueprint, render_template, request, flash, redirect,\
url_for, current_app, g
from werkzeug.utils import secure_filename
from wtforms.validators import ValidationError
from .backend import Storage
main = Blueprint('main', __name__)
def get_studies():
"""
Add all existing courses of backend to study list.
This list is used to fill form values with courses.
"""
studies = getattr(g, '_studies', None)
if studies is None:
studies = g._studies = {}
it = current_app.config['STUDIES'].items()
for i, (abbr, courses) in enumerate(it):
path_rel = os.path.join('studies', abbr)
path_app = os.path.join('app', 'static', path_rel)
studies[abbr] = Storage(path_rel, path_app)
return studies
@main.route('/<study>/upload/', methods=['GET', 'POST'])
@main.route('/<study>/upload/<course>', methods=['GET', 'POST'])
def upload(study, course = None):
from .forms import UploadForm
form = UploadForm()
form.study.data = study
# dynamically fill form values
courses = set(current_app.config['STUDIES'][study] +
get_studies()[study].get_courses())
choices = [(k,k) for k in sorted(courses, key=str.casefold)]
form.course.choices = choices
if 'new' not in dict(form.course.choices):
form.course.choices.append(('', u'---'))
form.course.choices.append(('new', u'neuen Kurs hinzufügen'))
if form.validate_on_submit():
if form.course.data == 'new':
course = form.course_new.data
else:
course = form.course.data
year = form.year.data
filename = secure_filename(form.exam.data.filename)
try:
data = form.exam.data.stream.getvalue()
except:
data = form.exam.data.stream.read()
backend = get_studies()[study]
if not backend.exam_exists(course, year, filename):
backend.add_exam(course, year, filename, data)
flash(u'Datei %s gespeichert.' % filename)
return redirect(url_for('.courses_show', study = study, course = course))
else:
flash(u'Datei mit gleichem Namen existiert schon!', 'error')
try:
form.course.data = [k for (k,v) in form.course.choices if v == course][0]
except:
pass
return render_template('upload.html', study = study, form = form,
course = course)
@main.route('/<study>/courses/')
@main.route('/<study>/courses/<course>')
def courses_show(study, course = None):
""" Lists all courses or exams for a course """
backend = get_studies()[study]
if course:
entries = sorted(backend.get_exams(course), reverse = True)
return render_template('exams.html', study = study, course = course,
entries=entries)
courses = sorted(backend.get_courses())
return render_template('courses.html', study = study, courses = courses)
@main.route('/')
def index():
""" Lists all course of studies """
get_img_path = lambda x: os.path.join('studies', x, 'logo.png')
it = current_app.config['STUDIES'].items()
studies = [(name, get_img_path(name)) for name,m in it]
return render_template('index.html', studies = studies)
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