Add __str__ to models, remove null=True in CharField and TextField

apps/activity/models.py

@@ -188,6 +188,12 @@ class Entry(models.Model):
         verbose_name = _("entry")
         verbose_name_plural = _("entries")
 
+    def __str__(self):
+        return _("Entry for {guest}, invited by {note} to the activity {activity}").format(
+            guest=str(self.guest), note=str(self.note), activity=str(self.activity)) if self.guest \
+            else _("Entry for {note} to the activity {activity}").format(
+            guest=str(self.guest), note=str(self.note), activity=str(self.activity))
+
     def save(self, *args, **kwargs):
 
         qs = Entry.objects.filter(~Q(pk=self.pk), activity=self.activity, note=self.note, guest=self.guest)

apps/logs/migrations/0002_replace_null_by_blank.py

@@ -0,0 +1,17 @@
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('logs', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.RunSQL(
+            "UPDATE logs_changelog SET previous = '' WHERE previous IS NULL;"
+        ),
+        migrations.RunSQL(
+            "UPDATE logs_changelog SET data = '' WHERE data IS NULL;"
+        ),
+    ]

apps/logs/migrations/0003_remove_null_tag_on_charfields.py

@@ -0,0 +1,23 @@
+# Generated by Django 2.2.16 on 2020-09-06 19:17
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('logs', '0002_replace_null_by_blank'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='changelog',
+            name='data',
+            field=models.TextField(blank=True, default='', verbose_name='new data'),
+        ),
+        migrations.AlterField(
+            model_name='changelog',
+            name='previous',
+            field=models.TextField(blank=True, default='', verbose_name='previous data'),
+        ),
+    ]

apps/logs/models.py

@@ -44,12 +44,14 @@ class Changelog(models.Model):
     )
 
     previous = models.TextField(
-        null=True,
+        blank=True,
+        default="",
         verbose_name=_('previous data'),
     )
 
     data = models.TextField(
-        null=True,
+        blank=True,
+        default="",
         verbose_name=_('new data'),
     )
 
@@ -80,3 +82,7 @@ class Changelog(models.Model):
     class Meta:
         verbose_name = _("changelog")
         verbose_name_plural = _("changelogs")
+
+    def __str__(self):
+        return _("Changelog of type \"{action}\" for model {model} at {timestamp}").format(
+            action=self.get_action_display(), model=str(self.model), timestamp=str(self.timestamp))

apps/logs/signals.py

@@ -99,7 +99,7 @@ def save_object(sender, instance, **kwargs):
             model = instance.__class__
             fields = changed_fields
 
-    previous_json = JSONRenderer().render(CustomSerializer(previous).data).decode("UTF-8") if previous else None
+    previous_json = JSONRenderer().render(CustomSerializer(previous).data).decode("UTF-8") if previous else ""
     instance_json = JSONRenderer().render(CustomSerializer(instance).data).decode("UTF-8")
 
     Changelog.objects.create(user=user,
@@ -149,6 +149,6 @@ def delete_object(sender, instance, **kwargs):
                              model=ContentType.objects.get_for_model(instance),
                              instance_pk=instance.pk,
                              previous=instance_json,
-                             data=None,
+                             data="",
                              action="delete"
                              ).save()

apps/member/migrations/0004_replace_null_by_blank.py

@@ -0,0 +1,20 @@
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('member', '0003_create_bde_and_kfet'),
+    ]
+
+    operations = [
+        migrations.RunSQL(
+            "UPDATE member_profile SET address = '' WHERE address IS NULL;",
+        ),
+        migrations.RunSQL(
+            "UPDATE member_profile SET ml_events_registration = '' WHERE ml_events_registration IS NULL;",
+        ),
+        migrations.RunSQL(
+            "UPDATE member_profile SET section = '' WHERE section IS NULL;",
+        ),
+    ]

apps/member/migrations/0005_remove_null_tag_on_charfields.py

@@ -0,0 +1,28 @@
+# Generated by Django 2.2.16 on 2020-09-06 19:17
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('member', '0004_replace_null_by_blank'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='profile',
+            name='address',
+            field=models.CharField(blank=True, default='', max_length=255, verbose_name='address'),
+        ),
+        migrations.AlterField(
+            model_name='profile',
+            name='ml_events_registration',
+            field=models.CharField(blank=True, choices=[('', 'No'), ('fr', 'Yes (receive them in french)'), ('en', 'Yes (receive them in english)')], default='', max_length=2, verbose_name='Register on the mailing list to stay informed of the events of the campus (1 mail/week)'),
+        ),
+        migrations.AlterField(
+            model_name='profile',
+            name='section',
+            field=models.CharField(blank=True, default='', help_text='e.g. "1A0", "9A♥", "SAPHIRE"', max_length=255, verbose_name='section'),
+        ),
+    ]

apps/member/models.py

@@ -46,7 +46,7 @@ class Profile(models.Model):
         help_text=_('e.g. "1A0", "9A♥", "SAPHIRE"'),
         max_length=255,
         blank=True,
-        null=True,
+        default="",
     )
 
     department = models.CharField(
@@ -83,7 +83,7 @@ class Profile(models.Model):
         verbose_name=_('address'),
         max_length=255,
         blank=True,
-        null=True,
+        default="",
     )
 
     paid = models.BooleanField(
@@ -94,11 +94,10 @@ class Profile(models.Model):
 
     ml_events_registration = models.CharField(
         blank=True,
-        null=True,
+        default='',
-        default=None,
         max_length=2,
         choices=[
-            (None, _("No")),
+            ('', _("No")),
             ('fr', _("Yes (receive them in french)")),
             ('en', _("Yes (receive them in english)")),
         ],

apps/note/migrations/0003_replace_null_by_blank.py

@@ -0,0 +1,17 @@
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('note', '0002_create_special_notes'),
+    ]
+
+    operations = [
+        migrations.RunSQL(
+            "UPDATE note_note SET inactivity_reason = '' WHERE inactivity_reason IS NULL;"
+        ),
+        migrations.RunSQL(
+            "UPDATE note_transaction SET invalidity_reason = '' WHERE invalidity_reason IS NULL;"
+        ),
+    ]

apps/note/migrations/0004_remove_null_tag_on_charfields.py

@@ -0,0 +1,23 @@
+# Generated by Django 2.2.16 on 2020-09-06 19:17
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('note', '0003_replace_null_by_blank'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='note',
+            name='inactivity_reason',
+            field=models.CharField(blank=True, choices=[('manual', 'The user blocked his/her note manually, eg. when he/she left the school for holidays. It can be reactivated at any time.'), ('forced', "The note is blocked by the the BDE and can't be manually reactivated.")], default='', max_length=255),
+        ),
+        migrations.AlterField(
+            model_name='transaction',
+            name='invalidity_reason',
+            field=models.CharField(blank=True, default='', max_length=255, verbose_name='invalidity reason'),
+        ),
+    ]

apps/note/models/notes.py

@@ -70,8 +70,8 @@ class Note(PolymorphicModel):
                          "It can be reactivated at any time.")),
             ('forced', _("The note is blocked by the the BDE and can't be manually reactivated.")),
         ],
-        null=True,
+        blank=True,
-        default=None,
+        default="",
     )
 
     class Meta:

apps/note/models/transactions.py

@@ -90,6 +90,9 @@ class TransactionTemplate(models.Model):
     def get_absolute_url(self):
         return reverse('note:template_update', args=(self.pk,))
 
+    def __str__(self):
+        return self.name
+
 
 class Transaction(PolymorphicModel):
     """
@@ -150,8 +153,7 @@ class Transaction(PolymorphicModel):
     invalidity_reason = models.CharField(
         verbose_name=_('invalidity reason'),
         max_length=255,
-        default=None,
+        default='',
-        null=True,
         blank=True,
     )
 
@@ -195,7 +197,7 @@ class Transaction(PolymorphicModel):
 
             # When a transaction is declared valid, we ensure that the invalidity reason is null, if it was
             # previously invalid
-            self.invalidity_reason = None
+            self.invalidity_reason = ""
 
         if source_balance > 9223372036854775807 or source_balance < -9223372036854775808\
                 or dest_balance > 9223372036854775807 or dest_balance < -9223372036854775808:

apps/scripts

@@ -1 +1 @@
-Subproject commit 4f5a794798a48cbbf10b42f0a519743fcbb96c33
+Subproject commit bac22dcbac9f3ddb981a5e63629a77ca2cb8f8ff

apps/treasury/models.py

@@ -109,6 +109,9 @@ class Invoice(models.Model):
         verbose_name = _("invoice")
         verbose_name_plural = _("invoices")
 
+    def __str__(self):
+        return _("Invoice #{id}").format(id=self.id)
+
 
 class Product(models.Model):
     """
@@ -151,6 +154,9 @@ class Product(models.Model):
         verbose_name = _("product")
         verbose_name_plural = _("products")
 
+    def __str__(self):
+        return f"{self.designation} ({self.invoice})"
+
 
 class RemittanceType(models.Model):
     """
@@ -256,6 +262,9 @@ class SpecialTransactionProxy(models.Model):
         verbose_name = _("special transaction proxy")
         verbose_name_plural = _("special transaction proxies")
 
+    def __str__(self):
+        return str(self.transaction)
+
 
 class SogeCredit(models.Model):
     """
@@ -354,3 +363,6 @@ class SogeCredit(models.Model):
     class Meta:
         verbose_name = _("Credit from the Société générale")
         verbose_name_plural = _("Credits from the Société générale")
+
+    def __str__(self):
+        return _("Soge credit for {user}").format(user=str(self.user))