added python 3 and uuid entity id support

Author: musamusa

.gitignore

@@ -5,3 +5,7 @@
 *.sqlite*
 _build
 build
+django_eav.egg-info/*
+*.DS_Store
+env/
+.idea/

README.rst

@@ -5,6 +5,7 @@ django-eav
 Introduction
 ------------
 
+
 django-eav provides an Entity-Attribute-Value storage model for django apps.
 
 For a decent explanation of what an Entity-Attribute-Value storage model is,

docs/index.rst

@@ -139,6 +139,9 @@ For example::
 
     eav.register(MyModel, MyEavConfigClass)
 
+To override ``entity_id`` to use ``entity_uuid`` for entity relationship with
+model add ``EAV_ENTITY_ID_TYPE='uuid'`` to use ``entity_uuid`` (defaults to
+int for ``entity_id``)
 
 Using Attributes
 ================
@@ -151,7 +154,7 @@ First, let's create some attributes::
 
     >>> Attribute.objects.create(name='Weight', datatype=Attribute.TYPE_FLOAT)
     >>> Attribute.objects.create(name='Height', datatype=Attribute.TYPE_INT)
-    >>> Attribute.objects.create(name='Is pregant?', datatype=Attribute.TYPE_BOOLEAN)
+    >>> Attribute.objects.create(name='Is pregnant?', datatype=Attribute.TYPE_BOOLEAN)
 
 Now let's create a patient, and set some of these attributes::
 

eav/__init__.py

@@ -27,9 +27,9 @@ def get_version():
 __version__ = get_version()
 
 def register(model_cls, config_cls=None):
-    from registry import Registry
+    from .registry import Registry
     Registry.register(model_cls, config_cls)
 
 def unregister(model_cls):
-    from registry import Registry
+    from .registry import Registry
     Registry.unregister(model_cls)

eav/admin.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 # vim: ai ts=4 sts=4 et sw=4 coding=utf-8
 #
-#    This software is derived from EAV-Django originally written and 
+#    This software is derived from EAV-Django originally written and
 #    copyrighted by Andrey Mikhaylenko <http://pypi.python.org/pypi/eav-django>
 #
 #    This is free software: you can redistribute it and/or modify
@@ -27,8 +27,9 @@
 
 from .models import Attribute, Value, EnumValue, EnumGroup
 
+
 class BaseEntityAdmin(ModelAdmin):
-    
+
     def render_change_form(self, request, context, add=False, change=False, form_url='', obj=None):
         """
         Wrapper for ModelAdmin.render_change_form. Replaces standard static
@@ -93,8 +94,9 @@ def get_fieldsets(self, request, obj=None):
 
         return [(None, {'fields': form.fields.keys()})]
 
+
 class AttributeAdmin(ModelAdmin):
-    list_display = ('name', 'slug', 'datatype', 'description', 'site')
+    list_display = ('name', 'content_type', 'slug', 'datatype', 'description', 'site')
     list_filter = ['site']
     prepopulated_fields = {'slug': ('name',)}
 

eav/fields.py

@@ -82,9 +82,10 @@ def validate(self, value, instance):
         :class:`~eav.models.Value` objects.
         '''
         super(EavDatatypeField, self).validate(value, instance)
-        from .models import Attribute
         if not instance.pk:
             return
+        if type(instance).objects.get(pk=instance.pk).datatype == instance.datatype:
+            return
         if instance.value_set.count():
             raise ValidationError(_(u"You cannot change the datatype of an "
                                     u"attribute that is already in use."))

eav/managers.py

@@ -110,11 +110,11 @@ def expand_eav_filter(model_cls, key, value):
         return '%s__in' % gr_name, value
 
     try:
-        field, m, direct, m2m = model_cls._meta.get_field_by_name(fields[0])
+        field = model_cls._meta.get_field(fields[0])
     except models.FieldDoesNotExist:
         return key, value
 
-    if direct:
+    if not field.auto_created or field.concrete:
         return key, value
     else:
         sub_key = '__'.join(fields[1:])

eav/migrations/0001_initial.py

@@ -0,0 +1,96 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.10 on 2016-10-13 05:56
+from __future__ import unicode_literals
+
+import django.contrib.sites.managers
+from django.db import migrations, models
+import django.db.models.deletion
+import django.db.models.manager
+import django.utils.timezone
+import eav.fields
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('contenttypes', '0002_remove_content_type_name'),
+        ('sites', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Attribute',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(help_text='User-friendly attribute name', max_length=100, verbose_name='name')),
+                ('slug', eav.fields.EavSlugField(help_text='Short unique attribute label', verbose_name='slug')),
+                ('description', models.CharField(blank=True, help_text='Short description', max_length=256, null=True, verbose_name='description')),
+                ('type', models.CharField(blank=True, max_length=20, null=True, verbose_name='type')),
+                ('datatype', eav.fields.EavDatatypeField(choices=[(b'text', 'Text'), (b'float', 'Float'), (b'int', 'Integer'), (b'date', 'Date'), (b'bool', 'True / False'), (b'object', 'Django Object'), (b'enum', 'Multiple Choice')], max_length=6, verbose_name='data type')),
+                ('created', models.DateTimeField(default=django.utils.timezone.now, editable=False, verbose_name='created')),
+                ('modified', models.DateTimeField(auto_now=True, verbose_name='modified')),
+                ('required', models.BooleanField(default=False, verbose_name='required')),
+            ],
+            options={
+                'ordering': ['name'],
+            },
+            managers=[
+                ('objects', django.db.models.manager.Manager()),
+                ('on_site', django.contrib.sites.managers.CurrentSiteManager()),
+            ],
+        ),
+        migrations.CreateModel(
+            name='EnumGroup',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=100, unique=True, verbose_name='name')),
+            ],
+        ),
+        migrations.CreateModel(
+            name='EnumValue',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('value', models.CharField(db_index=True, max_length=50, unique=True, verbose_name='value')),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Value',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('entity_id', models.IntegerField()),
+                ('value_text', models.TextField(blank=True, null=True)),
+                ('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()),
+                ('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')),
+                ('attribute', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='eav.Attribute', verbose_name='attribute')),
+                ('entity_ct', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='value_entities', to='contenttypes.ContentType')),
+                ('generic_value_ct', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='value_values', to='contenttypes.ContentType')),
+                ('value_enum', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='eav_values', to='eav.EnumValue')),
+            ],
+        ),
+        migrations.AddField(
+            model_name='enumgroup',
+            name='enums',
+            field=models.ManyToManyField(to='eav.EnumValue', verbose_name='enum group'),
+        ),
+        migrations.AddField(
+            model_name='attribute',
+            name='enum_group',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='eav.EnumGroup', verbose_name='choice group'),
+        ),
+        migrations.AddField(
+            model_name='attribute',
+            name='site',
+            field=models.ForeignKey(default=1, on_delete=django.db.models.deletion.CASCADE, to='sites.Site', verbose_name='site'),
+        ),
+        migrations.AlterUniqueTogether(
+            name='attribute',
+            unique_together=set([('site', 'slug')]),
+        ),
+    ]

eav/migrations/0002_auto_20161014_0157.py

@@ -0,0 +1,35 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.10 on 2016-10-13 16:57
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('contenttypes', '0002_remove_content_type_name'),
+        ('eav', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='attribute',
+            options={'ordering': ['content_type', 'name']},
+        ),
+        migrations.AddField(
+            model_name='attribute',
+            name='content_type',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='contenttypes.ContentType', verbose_name='content type'),
+        ),
+        migrations.AddField(
+            model_name='attribute',
+            name='display_order',
+            field=models.PositiveIntegerField(default=1, verbose_name='display order'),
+        ),
+        migrations.AlterUniqueTogether(
+            name='attribute',
+            unique_together=set([('site', 'content_type', 'slug')]),
+        ),
+    ]

eav/migrations/0003_auto_20161104_0922.py

@@ -0,0 +1,51 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.3 on 2016-11-04 09:22
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+import eav.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('eav', '0002_auto_20161014_0157'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Encounter',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('num', models.PositiveSmallIntegerField()),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Patient',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=12)),
+            ],
+        ),
+        migrations.AlterField(
+            model_name='attribute',
+            name='datatype',
+            field=eav.fields.EavDatatypeField(choices=[('text', 'Text'), ('float', 'Float'), ('int', 'Integer'), ('date', 'Date'), ('bool', 'True / False'), ('object', 'Django Object'), ('enum', 'Multiple Choice')], max_length=6, verbose_name='data type'),
+        ),
+        migrations.AddField(
+            model_name='encounter',
+            name='patient',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='eav.Patient'),
+        ),
+        migrations.AddField(
+            model_name='value',
+            name='entity_uuid',
+            field=models.UUIDField(blank=True, null=True),
+        ),
+        migrations.AlterField(
+            model_name='value',
+            name='entity_id',
+            field=models.IntegerField(blank=True, null=True),
+        ),
+    ]