from django.db import models
from django.utils import timezone
from django.contrib.auth.models import User


from node.models import Node, Language

#class Ngram(models.Model):
#    language    = models.ForeignKey(Language, blank=True, null=True, on_delete=models.SET_NULL)
#    n           = models.IntegerField()
#    terms       = models.CharField(max_length=255)
#    def __str__(self):
#        return "[%d] %s" % (self.pk, self.terms)
#
#class NodeNgram(models.Model):
#    node        = models.ForeignKey(Node)
#    ngram       = models.ForeignKey(Ngram, related_name="nodengram")
#    def __str__(self):
#        return "%s: %s" % (self.node.name, self.ngram.terms)
#
#class NodeNgramNgram(models.Model):
#    node        = models.ForeignKey(Node)
#    
#    ngramX      = models.ForeignKey(Ngram, related_name="nodengramngramx")
#    ngramY      = models.ForeignKey(Ngram, related_name="nodengramngramy")
#
#    score       = models.FloatField(default=0)
#
#    def __str__(self):
#        return "%s: %s / %s" % (self.node.name, self.ngramX.terms, self.ngramY.terms)
#
#