Fix Value __repr__ crash for missing entity.

eav/fields.py

@@ -2,7 +2,7 @@
 
 from django.core.exceptions import ValidationError
 from django.db import models
-from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import gettext_lazy as _
 
 
 class EavSlugField(models.SlugField):

eav/forms.py

@@ -5,7 +5,7 @@
 from django.contrib.admin.widgets import AdminSplitDateTime
 from django.forms import (BooleanField, CharField, ChoiceField, DateTimeField,
                           FloatField, IntegerField, ModelForm)
-from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import gettext_lazy as _
 
 
 class BaseDynamicEntityForm(ModelForm):

eav/migrations/0001_initial.py

@@ -55,7 +55,7 @@ class Migration(migrations.Migration):
                 ('value_float', models.FloatField(blank=True, null=True)),
                 ('value_int', models.IntegerField(blank=True, null=True)),
                 ('value_date', models.DateTimeField(blank=True, null=True)),
-                ('value_bool', models.NullBooleanField()),
+                ('value_bool', models.BooleanField(null=True)),
                 ('generic_value_id', models.IntegerField(blank=True, null=True)),
                 ('created', models.DateTimeField(default=django.utils.timezone.now, verbose_name='Created')),
                 ('modified', models.DateTimeField(auto_now=True, verbose_name='Modified')),

eav/migrations/0002_add_new_fields.py

@@ -0,0 +1,64 @@
+# Generated by Django 3.0.2 on 2020-07-27 07:30
+
+from django.db import migrations, models
+import django.db.models.deletion
+import eav.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('contenttypes', '0002_remove_content_type_name'),
+        ('eav', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='attribute',
+            name='entity_ct',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.PROTECT, related_name='attribute_entities', to='contenttypes.ContentType'),
+        ),
+        migrations.AddField(
+            model_name='attribute',
+            name='entity_id',
+            field=models.UUIDField(blank=True, null=True),
+        ),
+        migrations.AddField(
+            model_name='enumvalue',
+            name='legacy_value',
+            field=models.CharField(blank=True, db_index=True, max_length=100, null=True, verbose_name='Legacy Value'),
+        ),
+        migrations.AddField(
+            model_name='value',
+            name='value_decimal',
+            field=models.DecimalField(blank=True, decimal_places=2, max_digits=14, null=True),
+        ),
+        migrations.AddField(
+            model_name='value',
+            name='value_enum_multi',
+            field=models.ManyToManyField(related_name='eav_multi_values', to='eav.EnumValue'),
+        ),
+        migrations.AlterField(
+            model_name='attribute',
+            name='datatype',
+            field=eav.fields.EavDatatypeField(
+                choices=[('text', 'Text'), ('date', 'Date'), ('float', 'Float'), ('decimal', 'Decimal'),
+                         ('int', 'Integer'), ('bool', 'True / False'), ('object', 'Django Object'), ('enum', 'Choice'),
+                         ('enum_multi', 'Multiple Choice')], max_length=10, verbose_name='Data Type'),
+        ),
+        migrations.AlterField(
+            model_name='attribute',
+            name='slug',
+            field=eav.fields.EavSlugField(help_text='Short attribute label', verbose_name='Slug'),
+        ),
+        migrations.AlterField(
+            model_name='enumgroup',
+            name='name',
+            field=models.CharField(max_length=100, verbose_name='Name'),
+        ),
+        migrations.AlterField(
+            model_name='enumvalue',
+            name='value',
+            field=models.CharField(db_index=True, max_length=100, verbose_name='Value'),
+        ),
+    ]

eav/migrations/0003_add_values_unique_constraint.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.0.2 on 2020-09-20 11:05
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('contenttypes', '0002_remove_content_type_name'),
+        ('eav', '0002_add_new_fields'),
+    ]
+
+    operations = [
+        migrations.AlterUniqueTogether(
+            name='value',
+            unique_together={('entity_ct', 'entity_id', 'attribute_id')},
+        ),
+    ]