X-Git-Url: https://git.p6c8.net/pcdenotes.git/blobdiff_plain/938098389e8f0871a23d193a710c332ea3344eec..0840b157eb68a035aba4746aabf51d68d626e460:/notes/models.py?ds=inline diff --git a/notes/models.py b/notes/models.py index 70961fd..5453f9b 100644 --- a/notes/models.py +++ b/notes/models.py @@ -1,7 +1,14 @@ from django.db import models +from django.db.models import Count +from django.db.models.functions import ExtractYear, ExtractMonth, Coalesce +from django.db.models.signals import pre_save + +from django.dispatch import receiver from django.contrib.auth.models import User from django.urls import reverse +from datetime import datetime + # Create your models here. NOTE_STATUS = ((0, "Draft"), @@ -11,11 +18,29 @@ class NoteQuerySet(models.QuerySet): pass class NoteManager(models.Manager): + def all_published(self): + return super().get_queryset().filter(status=1).annotate(publication_date=Coalesce('published_at', 'created_at')).order_by('-publication_date') + + def all(self): + return super().all().annotate(publication_date=Coalesce('published_at', 'created_at')).order_by('-publication_date') + def per_year(self, year): - return super().get_queryset().filter(status=1, created_at__year=year) + return self.all_published().filter(publication_date__year=year) def per_month(self, year, month): - return super().get_queryset().filter(status=1, created_at__year=year, created_at__month=month) + return self.per_year(year).filter(publication_date__month=month) + + def years(self): + return self.all_published().annotate(published_year=ExtractYear('publication_date')).values_list('published_year', flat=True).distinct().order_by('published_year') + + def years_with_total(self): + return self.all_published().annotate(published_year=ExtractYear('publication_date')).values('published_year').annotate(total=Count('id')).order_by('published_year').values('published_year', 'total').distinct() + + def months(self, year): + return self.per_year(year).annotate(published_month=ExtractMonth('publication_date')).values_list('published_month', flat=True).distinct().order_by('published_month') + + def months_with_total(self, year): + return self.per_year(year).annotate(published_month=ExtractMonth('publication_date')).values('published_month').annotate(total=Count('id')).order_by('published_month').values('published_month', 'total').distinct() class Note(models.Model): title = models.CharField(max_length=250) @@ -26,6 +51,7 @@ class Note(models.Model): created_at = models.DateTimeField(auto_now_add=True) updated_at = models.DateTimeField(auto_now=True) + published_at = models.DateTimeField(null=True, editable=False) objects = NoteManager() @@ -42,4 +68,15 @@ class Note(models.Model): return self.status == 0 def is_published(self): - return self.status == 1 \ No newline at end of file + return self.status == 1 + +@receiver(pre_save, sender=Note) +def note_pre_save(sender, instance, **kwargs): + if instance.pk is None: + if instance.status == 1: + instance.published_at = datetime.now() + else: + old_instance = Note.objects.get(pk=instance.pk) + + if old_instance.status == 0 and instance.status == 1: + instance.published_at = datetime.now() \ No newline at end of file