from django.db import models

STATUS_CHOICES = (

        ("UP", "Unpublished"),

        ("OP", "Open"),

        ("LO", "Locked"),

        ("WR", "Working"),

        ("CD", "Closed"),

        ("DL", "Deleted"),

        ("CM", "Completed"))

class Task(models.Model):

    uniq_key = models.CharField(max_length = 10, unique = True)

    title = models.CharField(max_length = 100, verbose_name = u"Title", 

                             help_text = u"Keep it simple and below 100 chars.")

    desc = models.TextField(verbose_name = u"Description")

    status = models.CharField(max_length = 2, choices = STATUS_CHOICES, default = "UP")

    tags_field = TagField(verbose_name = u"Tags", 

                          help_text = u"Give tags seperated by commas") 

    pynts = models.PositiveSmallIntegerField(help_text = u"No.of pynts a user \

                                             gets on completing the task")

    created_by = models.ForeignKey(User, related_name = "%(class)s_created_by")

    approved_by = models.ForeignKey(User, related_name = "%(class)s_approved_by")

    reviewers = models.ManyToManyField(User, related_name = "%(class)s_reviewers")

    claimed_users = models.ManyToManyField(User, blank = True, 

                                           related_name = "%(class)s_claimed_users")

    selected_users = models.ManyToManyField(User, blank = True, 

                                            related_name = "%(class)s_selected_users")

    creation_datetime = models.DateTimeField()

    def __unicode__(self):

        return unicode(self.title)