from random import choice, choices from datetime import date, timedelta from flask import session, redirect, url_for, request, render_template from sqlalchemy import desc from share import share from create_db import Card, Rating, get_session from settings import get_settings """ testing """ def autofill_ratings(): dbsession = get_session() for i in range(100): card = Rating(user_id="1", card_id="10", rating_value=choice(["Yes", "Maybe", "No"]), rating_time=date.today()-timedelta(choice([i for i in range(100)]))) dbsession.add(card) dbsession.commit() dbsession.close() return None """ Main fuctions """ def calculate_interval(sorted_rates): maybe_factor = 1.2 no_factor = 2.1 print(sorted_rates[0].rating_value) if sorted_rates == []: #this is a new card, but interval can't be zero cuz multiplication... may have to handeled differently return 1 elif sorted_rates[0].rating_value == "Yes": return 1 elif sorted_rates[0].rating_value == "Maybe": sorted_rates.pop(0) return calculate_interval(sorted_rates) * maybe_factor elif sorted_rates[0].rating_value == "No": sorted_rates.pop(0) return calculate_interval(sorted_rates) * no_factor elif sorted_rates[0].rating_value == "Delete": return "Deleted" def get_interval(card_id): """ takes card_id looks at the history of rates and gives the current interval """ dbsession = get_session() sorted_rates_by_card = dbsession.query(Rating).filter(Rating.card_id == card_id).order_by(desc(Rating.rating_time)).all() if sorted_rates_by_card == None: print("ni kart... kaj zdaj") #@TODO return None else: interval = calculate_interval(sorted_rates_by_card) return round(interval) def is_due(card_id): dbsession = get_session() interval = get_interval(card_id) last_rating_date = dbsession.query(Rating).filter(Rating.card_id == card_id).order_by(desc(Rating.rating_time)).first() due_date = last_rating_date.rating_time + timedelta(interval) return date.today() >= due_date def list_of_due_card_by_ids(user_id): dbsession = get_session() cards = dbsession.query(Card).filter(Card.owner_id == user_id).all() l = [] for card in cards: if is_due(card.id): l.append(card.id) return l def list_of_new_cards_by_ids(user_id): dbsession = get_session() cards = dbsession.query(Card).filter(Card.owner_id == user_id).all() l = [] for card in cards: rating = dbsession.query(Rating).filter(Rating.card_id == card.id).first() if rating == None: l.append(card.id) return l def make_deck(user_id, max_new, max_due): due_cards = list_of_due_card_by_ids(user_id) new_cards = list_of_new_cards_by_ids(user_id) due_deck = [] due_deck.append(choices(due_cards, k=max_due)) new_deck = [] new_deck.append(choices(new_cards, k=max_new)) deck = new_deck + due_deck return deck def rated_today_by_staus (card_status): """ Returns number of cards rated today by user by status (new or due) """ dbsession = get_session() today = date.today() ratings_today = dbsession.query(Rating).filter(Rating.rating_time == today) n = 0 d = 0 for rating in ratings_today: count_all_rates_of_card = dbsession.query(Card).filter(Card.id == rating.card_id).count() if count_all_rates_of_card == 1: n+=1 elif count_all_rates_of_card > 1: d+=1 else: print("wtf") raise Exception("Count be wrong! There should be at least one rating") if card_status == "new": return n elif card_status == "due": return d else: raise Exception("must input either 'new' or 'due' as parameter") def get_a_card_by_status(card_status): if card_status == "new": l = list_of_new_cards_by_ids card_id = choice(list_of_due_card_by_ids) if card_status == "due": l = list_of_due_card_by_ids card_id = choice(list_of_due_card_by_ids) return card_id """ Engine """ def sr_session(): dbsession = get_session() #check if user in session if not 'user_id' in session: redirect(url_for('login')) user_id = session['user_id'] username = session['username'] user_settings = get_settings(user_id) max_new = user_settings["max_new"] max_due = user_settings["max_due"] rated_today_new = rated_today_by_staus("new") rated_today_due = rated_today_by_staus("due") # Smo oddali obrazec? if request.method == 'POST': #get card_if from the card, rendered from the template, data actually from the template... card_id = request.form.get('card_id', None) if not card_id: raise Exception("card_id necesarry!") #this is the rendered card aka the card we are rating and submiting the data on if max_new - rated_today_new > 0: card_id=get_a_card_by_status("new") elif max_due - rated_today_due >0: card_id=get_a_card_by_status("due") submit_card = dbsession.query(Card).get(card_id) #@TODO check if this card is part of the user's deck to prevent possibile hack? # Share #Share button pressed? then reset the form - hence the if-else share_request = request.form.get("share", None) if share_request: # @TODO logika za share! share(submit_card, user_id) # Rate #If it's not a share it's a rate! else: rate = request.form.get('rate', None) #is this get somehow dangerous? if not rate: raise Exception("Need rate info!") r = Rating(user_id=user_id, card_id=card_id, rating_value=rate, rating_time=date.today()) dbsession.add(r) dbsession.commit dbsession.close # Loudamo naslednjo karto v decku #TODO We need this but i don't know it's neccessay to distingush between submit/show show_card = card_id # Prikaži obrazec #Display from return render_template("deck.html", username=username, card=show_card)