from django.db import models from django.apps import apps from django.utils.text import slugify # Create your models here. class ArtistManager(models.Manager): def comma_to_qs(self, artists_str): final_ids = [] if artists_str: for artist in artists_str.split(','): obj, created = self.get_or_create(romanized_name=artist.strip()) final_ids.append(obj.id) qs = self.get_queryset().filter(id__in=final_ids).distinct() return qs return self.none() class Artist(models.Model): name = models.CharField(max_length=255,blank=True) romanized_name = models.CharField(max_length=255) slug = models.SlugField(max_length=255,blank=True) aliases = models.ManyToManyField("self",blank=True) category = models.ManyToManyField("categories.Category",blank=True) about_artist = models.TextField(blank=True) about_music = models.TextField(blank=True) objects = ArtistManager() class Meta: ordering = [ 'romanized_name','name' ] def __str__(self): return self.romanized_name def save(self, *args, **kwargs): self.slug = slugify(self.romanized_name) super().save(*args,**kwargs)