Models for bingo

models.py

""" 
We have 4 models that interact with each other to form the game play.  
The card and row tables will form the data for the bingo cards. 
The match_smiley table is populated from the card/row tables, where each column is a certain number on the card, 
so the row would be the group of numbers that make a smiley-face.  
We'll decrement the 'left' property of match_smiley as balls are called that match.
"""
from django.db import models

# keep Card and Row models from before

class Ball(models.Model):
    """
    The ball in a ball-blower. Represents a random number 1-75.
    """
    num_value = models.IntegerField()
    updated_at = models.DateTimeField(null=True)
    is_played = models.BooleanField(default=False)

    def __str__(self):
        return self.num_value

class MatchSmiley(models.Model):
    """ Derived from card data, each column is a number on a specific card"""
    one_value = models.CharField(max_length=3)
    two_value = models.CharField(max_length=3)
    three_value = models.CharField(max_length=3)
    four_value = models.CharField(max_length=3)
    five_value = models.CharField(max_length=3)
    six_value = models.CharField(max_length=3)
    seven_value = models.CharField(max_length=3)
    eight_value = models.CharField(max_length=3)
    nine_value = models.CharField(max_length=3)
    ten_value = models.CharField(max_length=3)
    eleven_value = models.CharField(max_length=3)
    twelve_value = models.CharField(max_length=3)
    thirteen_value = models.CharField(max_length=3)
    fourteen_value = models.CharField(max_length=3)
    needed_to_win = models.IntegerField()
    left = models.IntegerField()