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slides.py
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slides.py
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from database import db_session
from models import Administrator, Slide, Category
from flask import Flask, url_for, render_template, session, redirect, escape, request
app = Flask(__name__)
@app.route('/addCategory', methods=['GET', 'POST'])
def addCategory():
cat = Category(request.form['name'])
db_session.add(cat)
db_session.commit()
status = True
categories = getCategories()
return render_template('admin.html', categories = categories, status = status, action='added')
@app.route('/addSlide', methods=['GET', 'POST'])
def addSlide():
status = 1
categories = getCategories()
message = isValidURL(request.form['url'])
if(message != None):
return render_template('admin.html', categories = categories, status = status, message = message)
screenshot = None
s = Slide(request.form['title'], request.form['url'], request.form['description'], request.form['categorie'], screenshot)
db_session.add(s)
db_session.commit()
status = 0
return render_template('admin.html', categories = categories, status = status, action='added')
@app.route('/deleteslide', methods=['GET', 'POST'])
def deleteSlide():
slide_id = request.form['id']
s = Slide.query.get(slide_id)
db_session.delete(s)
db_session.commit()
status = True
categories = getCategories()
return render_template('admin.html', categories = categories, status = status, action='deleted')
@app.route('/updateslide', methods=['GET', 'POST'])
def updateSlide():
slide_id = request.form['id']
s = Slide.query.get(slide_id)
s.title = request.form['title']
s.description = request.form['description']
s.url = request.form['url']
s.category = request.form['categorie']
db_session.add(s)
db_session.commit()
status = True
categories = getCategories()
return render_template('admin.html', categories = categories, status = status, action='updated')
# retrives the list of categories from the database
def getCategories():
return Category.query.all()
# retrives slides for a given category
@app.template_filter('getSlides')
def getSlides(category):
return Slide.query.filter(Slide.category == category.id)
def isAdmin(email):
# if there is no result retrived from the administrator's table then
# the mail is not administrator
return (len(Administrator.query.filter(Administrator.email == email)) != 0)
def isValidURL(url):
# Check if the presentation is hosted on github
if(url.lower().startswith('https://github.com/') is not True):
return "Your slides must be hosted on https://github.com/"
# Check if the branch 'gh-pages' exists
import requests
res = requests.get(url+'/tree/gh-pages')
if(not res.ok):
return "You have to create a 'gh-pages' branch"
return None
@app.route('/')
def index():
categories = getCategories()
return render_template('index.html', categories = categories)
@app.route('/admin')
def admin():
categories = getCategories()
status = -1
return render_template('admin.html', categories = categories, status = status)
@app.teardown_appcontext
def shutdown_session(exeception=None):
db_session.remove()
if __name__ == '__main__':
app.run(host='0.0.0.0', debug=True)