Replace old models by new models to update DB structure

media/models.py

@@ -5,6 +5,7 @@
 from django.core.validators import MinValueValidator
 from django.db import models
 from django.utils.translation import gettext_lazy as _
+from polymorphic.models import PolymorphicModel
 
 from .fields import ISBNField
 
@@ -30,7 +31,86 @@ class Author(models.Model):
         ordering = ['name']
 
 
-class Comic(models.Model):
+class Borrowable(PolymorphicModel):
+    title = models.CharField(
+        max_length=255,
+        verbose_name=_("title"),
+    )
+
+    present = models.BooleanField(
+        verbose_name=_("present"),
+        help_text=_("Tell that the medium is present in the Mediatek."),
+        default=False,
+    )
+
+    def __str__(self):
+        return self.title
+
+    class Meta:
+        verbose_name = _('borrowable')
+        verbose_name_plural = _('borrowables')
+
+
+class Medium(Borrowable):
+    external_url = models.URLField(
+        verbose_name=_('external URL'),
+        blank=True,
+    )
+
+    side_identifier = models.CharField(
+        verbose_name=_('side identifier'),
+        max_length=255,
+    )
+
+    authors = models.ManyToManyField(
+        'Author',
+        verbose_name=_('authors'),
+    )
+
+    class Meta:
+        verbose_name = _("medium")
+        verbose_name_plural = _("media")
+
+
+class Book(Medium):
+    isbn = ISBNField(
+        _('ISBN'),
+        help_text=_('You may be able to scan it from a bar code.'),
+        unique=True,
+        blank=True,
+        null=True,
+    )
+
+    subtitle = models.CharField(
+        verbose_name=_('subtitle'),
+        max_length=255,
+        blank=True,
+    )
+
+    number_of_pages = models.PositiveIntegerField(
+        verbose_name=_('number of pages'),
+        blank=True,
+        null=True,
+    )
+
+    publish_date = models.DateField(
+        verbose_name=_('publish date'),
+        blank=True,
+        null=True,
+    )
+
+    def __str__(self):
+        if self.subtitle:
+            return "{} : {}".format(self.title, self.subtitle)
+        else:
+            return self.title
+
+    class Meta:
+        verbose_name = _("book")
+        verbose_name_plural = _("books")
+
+
+class OldComic(models.Model):
     isbn = ISBNField(
         _('ISBN'),
         help_text=_('You may be able to scan it from a bar code.'),
@@ -95,7 +175,14 @@ class Comic(models.Model):
         ordering = ['title', 'subtitle']
 
 
-class Manga(models.Model):
+class Comic(Book):
+    class Meta:
+        verbose_name = _("comic")
+        verbose_name_plural = _("comics")
+        ordering = ['title', 'subtitle']
+
+
+class OldManga(models.Model):
     isbn = ISBNField(
         _('ISBN'),
         help_text=_('You may be able to scan it from a bar code.'),
@@ -157,7 +244,14 @@ class Manga(models.Model):
         ordering = ['title']
 
 
-class Novel(models.Model):
+class Manga(Book):
+    class Meta:
+        verbose_name = _("manga")
+        verbose_name_plural = _("mangas")
+        ordering = ['title', 'subtitle']
+
+
+class OldNovel(models.Model):
     isbn = ISBNField(
         _('ISBN'),
         help_text=_('You may be able to scan it from a bar code.'),
@@ -219,7 +313,14 @@ class Novel(models.Model):
         ordering = ['title', 'subtitle']
 
 
-class Vinyl(models.Model):
+class Novel(Book):
+    class Meta:
+        verbose_name = _("novel")
+        verbose_name_plural = _("novels")
+        ordering = ['title', 'subtitle']
+
+
+class OldVinyl(models.Model):
     title = models.CharField(
         verbose_name=_('title'),
         max_length=255,
@@ -258,7 +359,22 @@ class Vinyl(models.Model):
         ordering = ['title']
 
 
-class CD(models.Model):
+class Vinyl(Medium):
+    rpm = models.PositiveIntegerField(
+        verbose_name=_('rounds per minute'),
+        choices=[
+            (33, _('33 RPM')),
+            (45, _('45 RPM')),
+        ],
+    )
+
+    class Meta:
+        verbose_name = _("vinyl")
+        verbose_name_plural = _("vinyls")
+        ordering = ['title']
+
+
+class OldCD(models.Model):
     title = models.CharField(
         verbose_name=_('title'),
         max_length=255,
@@ -289,7 +405,14 @@ class CD(models.Model):
         ordering = ['title']
 
 
-class Review(models.Model):
+class CD(Medium):
+    class Meta:
+        verbose_name = _("CD")
+        verbose_name_plural = _("CDs")
+        ordering = ['title']
+
+
+class OldReview(models.Model):
     title = models.CharField(
         verbose_name=_('title'),
         max_length=255,
@@ -340,6 +463,46 @@ class Review(models.Model):
         ordering = ['title', 'number']
 
 
+class Review(Borrowable):
+    number = models.PositiveIntegerField(
+        verbose_name=_('number'),
+    )
+
+    year = models.PositiveIntegerField(
+        verbose_name=_('year'),
+        null=True,
+        blank=True,
+        default=None,
+    )
+
+    month = models.PositiveIntegerField(
+        verbose_name=_('month'),
+        null=True,
+        blank=True,
+        default=None,
+    )
+
+    day = models.PositiveIntegerField(
+        verbose_name=_('day'),
+        null=True,
+        blank=True,
+        default=None,
+    )
+
+    double = models.BooleanField(
+        verbose_name=_('double'),
+        default=False,
+    )
+
+    def __str__(self):
+        return self.title + " n°" + str(self.number)
+
+    class Meta:
+        verbose_name = _("review")
+        verbose_name_plural = _("reviews")
+        ordering = ['title', 'number']
+
+
 class FutureMedium(models.Model):
     isbn = ISBNField(
         _('ISBN'),
@@ -375,7 +538,7 @@ class FutureMedium(models.Model):
 
 class Emprunt(models.Model):
     media = models.ForeignKey(
-        'Comic',
+        'media.Borrowable',
         on_delete=models.PROTECT,
     )
     user = models.ForeignKey(
@@ -417,7 +580,7 @@ class Emprunt(models.Model):
         ordering = ['-date_emprunt']
 
 
-class Game(models.Model):
+class OldGame(models.Model):
     DURATIONS = (
         ('-1h', '-1h'),
         ('1-2h', '1-2h'),
@@ -426,7 +589,7 @@ class Game(models.Model):
         ('4h+', '4h+'),
     )
 
-    name = models.CharField(
+    title = models.CharField(
         max_length=255,
         verbose_name=_("name"),
     )
@@ -455,9 +618,50 @@ class Game(models.Model):
     )
 
     def __str__(self):
-        return str(self.name)
+        return str(self.title)
 
     class Meta:
         verbose_name = _("game")
         verbose_name_plural = _("games")
-        ordering = ['name']
+        ordering = ['title']
+
+
+class Game(Borrowable):
+    DURATIONS = (
+        ('-1h', '-1h'),
+        ('1-2h', '1-2h'),
+        ('2-3h', '2-3h'),
+        ('3-4h', '3-4h'),
+        ('4h+', '4h+'),
+    )
+    owner = models.ForeignKey(
+        'users.User',
+        on_delete=models.PROTECT,
+        verbose_name=_("owner"),
+    )
+    duration = models.CharField(
+        choices=DURATIONS,
+        max_length=255,
+        verbose_name=_("duration"),
+    )
+    players_min = models.IntegerField(
+        validators=[MinValueValidator(1)],
+        verbose_name=_("minimum number of players"),
+    )
+    players_max = models.IntegerField(
+        validators=[MinValueValidator(1)],
+        verbose_name=_('maximum number of players'),
+    )
+    comment = models.CharField(
+        max_length=255,
+        blank=True,
+        verbose_name=_('comment'),
+    )
+
+    def __str__(self):
+        return str(self.title)
+
+    class Meta:
+        verbose_name = _("game")
+        verbose_name_plural = _("games")
+        ordering = ['title']