app.py

from flask import Flask, render_template, request
import pymongo
import os

#for local database connections
#from pymongo import MongoClient, Connection

app = Flask(__name__)

#for local database connections
#client = MongoClient()

mongodb_uri = ''

    # pymongo.Connection creates a connection directly from the URI, performing
    # authentication using the provided user components if necessary.
try:
    client = pymongo.Connection(mongodb_uri)
except:
    print('Error: Unable to connect to database.')
    client = None

db = client.tothebeat
collection = db.beat


@app.route('/')
def home():
    return render_template('index.html')


@app.route('/create', methods=['GET', 'POST'])
def create():
    if request.method == 'GET':
        images = [str(url) for url in request.args.get('images').split(',')]
        song = "'" + str(request.args.get('song')) + "'"
        return render_template('create.html', images=images, song=song)
    else:
        form = request.form
        images = form.getlist('images[]')
        song = form.getlist('song')[0]
        intervals = form.getlist('intervals[]')
        _id = collection.insert({'images': images,
                                 'song': song,
                                 'intervals': intervals})
        return '/watch/' + str(_id)


@app.route('/watch/<_id>')
def watch(_id):
    data = collection.find_one({"_id": ObjectId(_id)})
    return render_template('watching.html',
                           images=[str(s) for s in data['images']],
                           song="'" + str(data['song']) + "'",
                           intervals=[float(i) for i in data['intervals']])


if __name__ == "__main__":
    p = int(os.environ.get('PORT', 5000))
    app.run(host='0.0.0.0', port=p)