from django.db import models

from django.contrib.auth.models import User

GENDER_CHOICES = (('M', "Male"),

                  ('F', 'Female'))

PROFESSION_CHOICES = (('S', 'Student'),

                      ('F', 'Faculty'),

                      ('P', 'Professional'))

class Profile(models.Model):

    """ A model to hold extra information about the user.

    """

    user = models.ForeignKey(User, unique=True)

    gender = models.CharField(max_length=1, choices=GENDER_CHOICES)

    profession = models.CharField(max_length=1, choices=PROFESSION_CHOICES)

    affiliated_to = models.CharField(max_length=100, verbose_name="College/Company")

    interests = models.CharField(max_length=100, verbose_name="Fields of Interest", 

                                 help_text="Ex: Python, Image Processing, Bio Informatics etc.")

class Event(models.Model):

    """ A model for the workshop information.

    """

    title = models.CharField(max_length=100)

    description = models.TextField()

    start_date = models.DateField()

    end_date = models.DateField()

    attendees = models.ManyToManyField(User, related_name="%(class)s_attendees")

    organizers = models.ManyToManyField(User, related_name="%(class)s_organizers")