from __future__ import unicode_literals

from django.db import models
from django.contrib.auth.models import AbstractUser

class Reference(models.Model):
	name = models.CharField(max_length=20, unique=True)
	description = models.TextField()

class User(AbstractUser):
	ref = models.ForeignKey(Reference, null=True, blank=True)

class QSO(models.Model):
	owner = models.ForeignKey(User)
	time = models.DateTimeField()
	call = models.CharField(max_length=20)

	reportTX = models.CharField(max_length=7)
	reportRX = models.CharField(max_length=7)

	remarks = models.TextField()

class Band(models.Model):
	name = models.CharField(max_length=10)

	def __str__(self):
		return self.name

class Frequency(models.Model):
	# qrg
	# band
	channel = models.CharField(max_length=3)
	qrg = models.DecimalField(max_digits=7, decimal_places=3)
	band = models.ForeignKey(Band)

	def __str__(self):
		return "Channel %s: %s MHz" % (self.channel, self.qrg)