Django Model Manager

from django.db import models from mars.users.models import User

class TaskInitManager(models.Manager): def get_query_set(self): return super(TaskInitManager, self).get_query_set().filter(state=’1’)

class TaskWorkingManager(models.Manager): def get_query_set(self): return super(TaskWorkingManager, self).get_query_set().filter(state=’2’)

class TaskSuccessManager(models.Manager): def get_query_set(self): return super(TaskSuccessManager, self).get_query_set().filter(state=’3’)

class TaskGiveUpManager(models.Manager): def get_query_set(self): return super(TaskGiveUpManager, self).get_query_set().filter(state=’4’)

class Task(models.Model): title=models.CharField(max_length=255) description=models.TextField() start_date=models.DateField() end_date=models.DateField() state=models.CharField(max_length=1,choices=((‘1’,’Initial’),(‘2’,’Working’),(‘3’,’Success’),(‘4’,’Give Up’))) task_state=models.Manager() init=TaskInitManager() working=TaskWorkingManager() success=TaskSuccessManager() giveUp=TaskGiveUpManager() holder=models.ForeignKey(User) def unicode(self): return self.title class Admin: pass