Make URL a Field instead a property (#63)

This PR adds a new Field to all existing Models.
As its a data migrations the Migration is added.

Co-authored-by: Tim Lorsbach <tim@lorsba.ch>
Reviewed-on: enviPath/enviPy#63

epdb/management/commands/localize_urls.py

@@ -0,0 +1,50 @@
+from django.apps import apps
+from django.core.management.base import BaseCommand
+
+from django.db.models import F, Value
+from django.db.models.functions import Replace
+
+
+class Command(BaseCommand):
+
+    def add_arguments(self, parser):
+        parser.add_argument(
+            '--old',
+            type=str,
+            help='Old Host, most likely https://envipath.org/',
+            required=True,
+        )
+        parser.add_argument(
+            '--new',
+            type=str,
+            help='New Host, most likely http://localhost:8000/',
+            required=True,
+        )
+
+    def handle(self, *args, **options):
+        MODELS = [
+            'User',
+            'Group',
+            'Package',
+            'Compound',
+            'CompoundStructure',
+            'Pathway',
+            'Edge',
+            'Node',
+            'Reaction',
+            'SimpleAmbitRule',
+            'SimpleRDKitRule',
+            'ParallelRule',
+            'SequentialRule',
+            'Scenario',
+            'Setting',
+            'MLRelativeReasoning',
+            'EnviFormer',
+            'ApplicabilityDomain',
+        ]
+        for model in MODELS:
+            obj_cls = apps.get_model("epdb", model)
+            print(f"Localizing urls for {model}")
+            obj_cls.objects.update(
+                url=Replace(F('url'), Value(options['old']), Value(options['new']))
+            )

epdb/migrations/0001_initial.py

@@ -0,0 +1,594 @@
+# Generated by Django 5.2.1 on 2025-07-22 20:58
+
+import datetime
+import django.contrib.auth.models
+import django.contrib.auth.validators
+import django.contrib.postgres.fields
+import django.db.models.deletion
+import django.utils.timezone
+import model_utils.fields
+import uuid
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('auth', '0012_alter_user_first_name_max_length'),
+        ('contenttypes', '0002_remove_content_type_name'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Compound',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created', model_utils.fields.AutoCreatedField(default=django.utils.timezone.now, editable=False, verbose_name='created')),
+                ('modified', model_utils.fields.AutoLastModifiedField(default=django.utils.timezone.now, editable=False, verbose_name='modified')),
+                ('uuid', models.UUIDField(default=uuid.uuid4, unique=True, verbose_name='UUID of this object')),
+                ('name', models.TextField(default='no name', verbose_name='Name')),
+                ('description', models.TextField(default='no description', verbose_name='Descriptions')),
+                ('kv', models.JSONField(blank=True, default=dict, null=True)),
+                ('aliases', django.contrib.postgres.fields.ArrayField(base_field=models.TextField(), default=list, size=None, verbose_name='Aliases')),
+            ],
+        ),
+        migrations.CreateModel(
+            name='EPModel',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created', model_utils.fields.AutoCreatedField(default=django.utils.timezone.now, editable=False, verbose_name='created')),
+                ('modified', model_utils.fields.AutoLastModifiedField(default=django.utils.timezone.now, editable=False, verbose_name='modified')),
+                ('uuid', models.UUIDField(default=uuid.uuid4, unique=True, verbose_name='UUID of this object')),
+                ('name', models.TextField(default='no name', verbose_name='Name')),
+                ('description', models.TextField(default='no description', verbose_name='Descriptions')),
+                ('kv', models.JSONField(blank=True, default=dict, null=True)),
+                ('polymorphic_ctype', models.ForeignKey(editable=False, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='polymorphic_%(app_label)s.%(class)s_set+', to='contenttypes.contenttype')),
+            ],
+            options={
+                'abstract': False,
+                'base_manager_name': 'objects',
+            },
+        ),
+        migrations.CreateModel(
+            name='Permission',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created', model_utils.fields.AutoCreatedField(default=django.utils.timezone.now, editable=False, verbose_name='created')),
+                ('modified', model_utils.fields.AutoLastModifiedField(default=django.utils.timezone.now, editable=False, verbose_name='modified')),
+                ('permission', models.CharField(choices=[('read', 'Read'), ('write', 'Write'), ('all', 'All')], max_length=32)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='License',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('link', models.URLField(verbose_name='link')),
+                ('image_link', models.URLField(verbose_name='Image link')),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Rule',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created', model_utils.fields.AutoCreatedField(default=django.utils.timezone.now, editable=False, verbose_name='created')),
+                ('modified', model_utils.fields.AutoLastModifiedField(default=django.utils.timezone.now, editable=False, verbose_name='modified')),
+                ('uuid', models.UUIDField(default=uuid.uuid4, unique=True, verbose_name='UUID of this object')),
+                ('name', models.TextField(default='no name', verbose_name='Name')),
+                ('description', models.TextField(default='no description', verbose_name='Descriptions')),
+                ('kv', models.JSONField(blank=True, default=dict, null=True)),
+                ('aliases', django.contrib.postgres.fields.ArrayField(base_field=models.TextField(), default=list, size=None, verbose_name='Aliases')),
+            ],
+            options={
+                'abstract': False,
+                'base_manager_name': 'objects',
+            },
+        ),
+        migrations.CreateModel(
+            name='User',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('password', models.CharField(max_length=128, verbose_name='password')),
+                ('last_login', models.DateTimeField(blank=True, null=True, verbose_name='last login')),
+                ('is_superuser', models.BooleanField(default=False, help_text='Designates that this user has all permissions without explicitly assigning them.', verbose_name='superuser status')),
+                ('username', models.CharField(error_messages={'unique': 'A user with that username already exists.'}, help_text='Required. 150 characters or fewer. Letters, digits and @/./+/-/_ only.', max_length=150, unique=True, validators=[django.contrib.auth.validators.UnicodeUsernameValidator()], verbose_name='username')),
+                ('first_name', models.CharField(blank=True, max_length=150, verbose_name='first name')),
+                ('last_name', models.CharField(blank=True, max_length=150, verbose_name='last name')),
+                ('is_staff', models.BooleanField(default=False, help_text='Designates whether the user can log into this admin site.', verbose_name='staff status')),
+                ('is_active', models.BooleanField(default=True, help_text='Designates whether this user should be treated as active. Unselect this instead of deleting accounts.', verbose_name='active')),
+                ('date_joined', models.DateTimeField(default=django.utils.timezone.now, verbose_name='date joined')),
+                ('email', models.EmailField(max_length=254, unique=True)),
+                ('uuid', models.UUIDField(default=uuid.uuid4, unique=True, verbose_name='UUID of this object')),
+                ('groups', models.ManyToManyField(blank=True, help_text='The groups this user belongs to. A user will get all permissions granted to each of their groups.', related_name='user_set', related_query_name='user', to='auth.group', verbose_name='groups')),
+                ('user_permissions', models.ManyToManyField(blank=True, help_text='Specific permissions for this user.', related_name='user_set', related_query_name='user', to='auth.permission', verbose_name='user permissions')),
+            ],
+            options={
+                'verbose_name': 'user',
+                'verbose_name_plural': 'users',
+                'abstract': False,
+            },
+            managers=[
+                ('objects', django.contrib.auth.models.UserManager()),
+            ],
+        ),
+        migrations.CreateModel(
+            name='APIToken',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('hashed_key', models.CharField(max_length=128, unique=True)),
+                ('created', models.DateTimeField(auto_now_add=True)),
+                ('expires_at', models.DateTimeField(blank=True, default=datetime.datetime(2025, 10, 20, 20, 58, 48, 351675, tzinfo=datetime.timezone.utc), null=True)),
+                ('name', models.CharField(blank=True, help_text='Optional name for the token', max_length=100)),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='CompoundStructure',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created', model_utils.fields.AutoCreatedField(default=django.utils.timezone.now, editable=False, verbose_name='created')),
+                ('modified', model_utils.fields.AutoLastModifiedField(default=django.utils.timezone.now, editable=False, verbose_name='modified')),
+                ('uuid', models.UUIDField(default=uuid.uuid4, unique=True, verbose_name='UUID of this object')),
+                ('name', models.TextField(default='no name', verbose_name='Name')),
+                ('description', models.TextField(default='no description', verbose_name='Descriptions')),
+                ('kv', models.JSONField(blank=True, default=dict, null=True)),
+                ('aliases', django.contrib.postgres.fields.ArrayField(base_field=models.TextField(), default=list, size=None, verbose_name='Aliases')),
+                ('smiles', models.TextField(verbose_name='SMILES')),
+                ('canonical_smiles', models.TextField(verbose_name='Canonical SMILES')),
+                ('inchikey', models.TextField(max_length=27, verbose_name='InChIKey')),
+                ('normalized_structure', models.BooleanField(default=False)),
+                ('compound', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='epdb.compound')),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+        migrations.AddField(
+            model_name='compound',
+            name='default_structure',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, related_name='compound_default_structure', to='epdb.compoundstructure', verbose_name='Default Structure'),
+        ),
+        migrations.CreateModel(
+            name='Edge',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created', model_utils.fields.AutoCreatedField(default=django.utils.timezone.now, editable=False, verbose_name='created')),
+                ('modified', model_utils.fields.AutoLastModifiedField(default=django.utils.timezone.now, editable=False, verbose_name='modified')),
+                ('uuid', models.UUIDField(default=uuid.uuid4, unique=True, verbose_name='UUID of this object')),
+                ('name', models.TextField(default='no name', verbose_name='Name')),
+                ('description', models.TextField(default='no description', verbose_name='Descriptions')),
+                ('kv', models.JSONField(blank=True, default=dict, null=True)),
+                ('aliases', django.contrib.postgres.fields.ArrayField(base_field=models.TextField(), default=list, size=None, verbose_name='Aliases')),
+                ('polymorphic_ctype', models.ForeignKey(editable=False, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='polymorphic_%(app_label)s.%(class)s_set+', to='contenttypes.contenttype')),
+            ],
+            options={
+                'abstract': False,
+                'base_manager_name': 'objects',
+            },
+        ),
+        migrations.CreateModel(
+            name='EnviFormer',
+            fields=[
+                ('epmodel_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='epdb.epmodel')),
+                ('threshold', models.FloatField(default=0.5)),
+            ],
+            options={
+                'abstract': False,
+                'base_manager_name': 'objects',
+            },
+            bases=('epdb.epmodel',),
+        ),
+        migrations.CreateModel(
+            name='PluginModel',
+            fields=[
+                ('epmodel_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='epdb.epmodel')),
+            ],
+            options={
+                'abstract': False,
+                'base_manager_name': 'objects',
+            },
+            bases=('epdb.epmodel',),
+        ),
+        migrations.CreateModel(
+            name='RuleBaseRelativeReasoning',
+            fields=[
+                ('epmodel_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='epdb.epmodel')),
+            ],
+            options={
+                'abstract': False,
+                'base_manager_name': 'objects',
+            },
+            bases=('epdb.epmodel',),
+        ),
+        migrations.CreateModel(
+            name='Group',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created', model_utils.fields.AutoCreatedField(default=django.utils.timezone.now, editable=False, verbose_name='created')),
+                ('modified', model_utils.fields.AutoLastModifiedField(default=django.utils.timezone.now, editable=False, verbose_name='modified')),
+                ('uuid', models.UUIDField(default=uuid.uuid4, unique=True, verbose_name='UUID of this object')),
+                ('name', models.TextField(verbose_name='Group name')),
+                ('public', models.BooleanField(default=False, verbose_name='Public Group')),
+                ('description', models.TextField(default='no description', verbose_name='Descriptions')),
+                ('group_member', models.ManyToManyField(related_name='groups_in_group', to='epdb.group', verbose_name='Group member')),
+                ('owner', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL, verbose_name='Group Owner')),
+                ('user_member', models.ManyToManyField(related_name='users_in_group', to=settings.AUTH_USER_MODEL, verbose_name='User members')),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+        migrations.AddField(
+            model_name='user',
+            name='default_group',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='default_group', to='epdb.group', verbose_name='Default Group'),
+        ),
+        migrations.CreateModel(
+            name='Node',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created', model_utils.fields.AutoCreatedField(default=django.utils.timezone.now, editable=False, verbose_name='created')),
+                ('modified', model_utils.fields.AutoLastModifiedField(default=django.utils.timezone.now, editable=False, verbose_name='modified')),
+                ('uuid', models.UUIDField(default=uuid.uuid4, unique=True, verbose_name='UUID of this object')),
+                ('name', models.TextField(default='no name', verbose_name='Name')),
+                ('description', models.TextField(default='no description', verbose_name='Descriptions')),
+                ('kv', models.JSONField(blank=True, default=dict, null=True)),
+                ('aliases', django.contrib.postgres.fields.ArrayField(base_field=models.TextField(), default=list, size=None, verbose_name='Aliases')),
+                ('depth', models.IntegerField(verbose_name='Node depth')),
+                ('default_node_label', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='default_node_structure', to='epdb.compoundstructure', verbose_name='Default Node Label')),
+                ('node_labels', models.ManyToManyField(related_name='node_structures', to='epdb.compoundstructure', verbose_name='All Node Labels')),
+                ('out_edges', models.ManyToManyField(to='epdb.edge', verbose_name='Outgoing Edges')),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+        migrations.AddField(
+            model_name='edge',
+            name='end_nodes',
+            field=models.ManyToManyField(related_name='edge_products', to='epdb.node', verbose_name='End Nodes'),
+        ),
+        migrations.AddField(
+            model_name='edge',
+            name='start_nodes',
+            field=models.ManyToManyField(related_name='edge_educts', to='epdb.node', verbose_name='Start Nodes'),
+        ),
+        migrations.CreateModel(
+            name='Package',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created', model_utils.fields.AutoCreatedField(default=django.utils.timezone.now, editable=False, verbose_name='created')),
+                ('modified', model_utils.fields.AutoLastModifiedField(default=django.utils.timezone.now, editable=False, verbose_name='modified')),
+                ('uuid', models.UUIDField(default=uuid.uuid4, unique=True, verbose_name='UUID of this object')),
+                ('name', models.TextField(default='no name', verbose_name='Name')),
+                ('description', models.TextField(default='no description', verbose_name='Descriptions')),
+                ('kv', models.JSONField(blank=True, default=dict, null=True)),
+                ('reviewed', models.BooleanField(default=False, verbose_name='Reviewstatus')),
+                ('license', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to='epdb.license', verbose_name='License')),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+        migrations.AddField(
+            model_name='epmodel',
+            name='package',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='epdb.package', verbose_name='Package'),
+        ),
+        migrations.AddField(
+            model_name='compound',
+            name='package',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='epdb.package', verbose_name='Package'),
+        ),
+        migrations.AddField(
+            model_name='user',
+            name='default_package',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, to='epdb.package', verbose_name='Default Package'),
+        ),
+        migrations.CreateModel(
+            name='SequentialRule',
+            fields=[
+                ('rule_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='epdb.rule')),
+            ],
+            options={
+                'abstract': False,
+                'base_manager_name': 'objects',
+            },
+            bases=('epdb.rule',),
+        ),
+        migrations.CreateModel(
+            name='SimpleRule',
+            fields=[
+                ('rule_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='epdb.rule')),
+            ],
+            options={
+                'abstract': False,
+                'base_manager_name': 'objects',
+            },
+            bases=('epdb.rule',),
+        ),
+        migrations.AddField(
+            model_name='rule',
+            name='package',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='epdb.package', verbose_name='Package'),
+        ),
+        migrations.AddField(
+            model_name='rule',
+            name='polymorphic_ctype',
+            field=models.ForeignKey(editable=False, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='polymorphic_%(app_label)s.%(class)s_set+', to='contenttypes.contenttype'),
+        ),
+        migrations.CreateModel(
+            name='Pathway',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created', model_utils.fields.AutoCreatedField(default=django.utils.timezone.now, editable=False, verbose_name='created')),
+                ('modified', model_utils.fields.AutoLastModifiedField(default=django.utils.timezone.now, editable=False, verbose_name='modified')),
+                ('uuid', models.UUIDField(default=uuid.uuid4, unique=True, verbose_name='UUID of this object')),
+                ('name', models.TextField(default='no name', verbose_name='Name')),
+                ('description', models.TextField(default='no description', verbose_name='Descriptions')),
+                ('kv', models.JSONField(blank=True, default=dict, null=True)),
+                ('aliases', django.contrib.postgres.fields.ArrayField(base_field=models.TextField(), default=list, size=None, verbose_name='Aliases')),
+                ('package', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='epdb.package', verbose_name='Package')),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+        migrations.AddField(
+            model_name='node',
+            name='pathway',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='epdb.pathway', verbose_name='belongs to'),
+        ),
+        migrations.AddField(
+            model_name='edge',
+            name='pathway',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='epdb.pathway', verbose_name='belongs to'),
+        ),
+        migrations.CreateModel(
+            name='Reaction',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created', model_utils.fields.AutoCreatedField(default=django.utils.timezone.now, editable=False, verbose_name='created')),
+                ('modified', model_utils.fields.AutoLastModifiedField(default=django.utils.timezone.now, editable=False, verbose_name='modified')),
+                ('uuid', models.UUIDField(default=uuid.uuid4, unique=True, verbose_name='UUID of this object')),
+                ('name', models.TextField(default='no name', verbose_name='Name')),
+                ('description', models.TextField(default='no description', verbose_name='Descriptions')),
+                ('kv', models.JSONField(blank=True, default=dict, null=True)),
+                ('aliases', django.contrib.postgres.fields.ArrayField(base_field=models.TextField(), default=list, size=None, verbose_name='Aliases')),
+                ('multi_step', models.BooleanField(verbose_name='Multistep Reaction')),
+                ('medline_references', django.contrib.postgres.fields.ArrayField(base_field=models.TextField(), null=True, size=None, verbose_name='Medline References')),
+                ('educts', models.ManyToManyField(related_name='reaction_educts', to='epdb.compoundstructure', verbose_name='Educts')),
+                ('package', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='epdb.package', verbose_name='Package')),
+                ('products', models.ManyToManyField(related_name='reaction_products', to='epdb.compoundstructure', verbose_name='Products')),
+                ('rules', models.ManyToManyField(related_name='reaction_rule', to='epdb.rule', verbose_name='Rule')),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+        migrations.AddField(
+            model_name='edge',
+            name='edge_label',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, to='epdb.reaction', verbose_name='Edge label'),
+        ),
+        migrations.CreateModel(
+            name='Scenario',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created', model_utils.fields.AutoCreatedField(default=django.utils.timezone.now, editable=False, verbose_name='created')),
+                ('modified', model_utils.fields.AutoLastModifiedField(default=django.utils.timezone.now, editable=False, verbose_name='modified')),
+                ('uuid', models.UUIDField(default=uuid.uuid4, unique=True, verbose_name='UUID of this object')),
+                ('name', models.TextField(default='no name', verbose_name='Name')),
+                ('description', models.TextField(default='no description', verbose_name='Descriptions')),
+                ('kv', models.JSONField(blank=True, default=dict, null=True)),
+                ('scenario_date', models.CharField(default='No date', max_length=256)),
+                ('scenario_type', models.CharField(default='Not specified', max_length=256)),
+                ('additional_information', models.JSONField(verbose_name='Additional Information')),
+                ('package', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='epdb.package', verbose_name='Package')),
+                ('parent', models.ForeignKey(default=None, null=True, on_delete=django.db.models.deletion.CASCADE, to='epdb.scenario')),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+        migrations.AddField(
+            model_name='rule',
+            name='scenarios',
+            field=models.ManyToManyField(to='epdb.scenario', verbose_name='Attached Scenarios'),
+        ),
+        migrations.AddField(
+            model_name='reaction',
+            name='scenarios',
+            field=models.ManyToManyField(to='epdb.scenario', verbose_name='Attached Scenarios'),
+        ),
+        migrations.AddField(
+            model_name='pathway',
+            name='scenarios',
+            field=models.ManyToManyField(to='epdb.scenario', verbose_name='Attached Scenarios'),
+        ),
+        migrations.AddField(
+            model_name='node',
+            name='scenarios',
+            field=models.ManyToManyField(to='epdb.scenario', verbose_name='Attached Scenarios'),
+        ),
+        migrations.AddField(
+            model_name='edge',
+            name='scenarios',
+            field=models.ManyToManyField(to='epdb.scenario', verbose_name='Attached Scenarios'),
+        ),
+        migrations.AddField(
+            model_name='compoundstructure',
+            name='scenarios',
+            field=models.ManyToManyField(to='epdb.scenario', verbose_name='Attached Scenarios'),
+        ),
+        migrations.AddField(
+            model_name='compound',
+            name='scenarios',
+            field=models.ManyToManyField(to='epdb.scenario', verbose_name='Attached Scenarios'),
+        ),
+        migrations.CreateModel(
+            name='Setting',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created', model_utils.fields.AutoCreatedField(default=django.utils.timezone.now, editable=False, verbose_name='created')),
+                ('modified', model_utils.fields.AutoLastModifiedField(default=django.utils.timezone.now, editable=False, verbose_name='modified')),
+                ('uuid', models.UUIDField(default=uuid.uuid4, unique=True, verbose_name='UUID of this object')),
+                ('name', models.TextField(default='no name', verbose_name='Name')),
+                ('description', models.TextField(default='no description', verbose_name='Descriptions')),
+                ('kv', models.JSONField(blank=True, default=dict, null=True)),
+                ('public', models.BooleanField(default=False)),
+                ('global_default', models.BooleanField(default=False)),
+                ('max_depth', models.IntegerField(default=5, verbose_name='Setting Max Depth')),
+                ('max_nodes', models.IntegerField(default=30, verbose_name='Setting Max Number of Nodes')),
+                ('model_threshold', models.FloatField(blank=True, default=0.25, null=True, verbose_name='Setting Model Threshold')),
+                ('model', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to='epdb.epmodel', verbose_name='Setting EPModel')),
+                ('rule_packages', models.ManyToManyField(blank=True, related_name='setting_rule_packages', to='epdb.package', verbose_name='Setting Rule Packages')),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+        migrations.AddField(
+            model_name='pathway',
+            name='setting',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='epdb.setting', verbose_name='Setting'),
+        ),
+        migrations.AddField(
+            model_name='user',
+            name='default_setting',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, to='epdb.setting', verbose_name='The users default settings'),
+        ),
+        migrations.CreateModel(
+            name='MLRelativeReasoning',
+            fields=[
+                ('epmodel_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='epdb.epmodel')),
+                ('threshold', models.FloatField(default=0.5)),
+                ('model_status', models.CharField(choices=[('INITIAL', 'Initial'), ('INITIALIZING', 'Model is initializing.'), ('BUILDING', 'Model is building.'), ('BUILT_NOT_EVALUATED', 'Model is built and can be used for predictions, Model is not evaluated yet.'), ('EVALUATING', 'Model is evaluating'), ('FINISHED', 'Model has finished building and evaluation.'), ('ERROR', 'Model has failed.')], default='INITIAL')),
+                ('eval_results', models.JSONField(blank=True, default=dict, null=True)),
+                ('data_packages', models.ManyToManyField(related_name='data_packages', to='epdb.package', verbose_name='Data Packages')),
+                ('eval_packages', models.ManyToManyField(related_name='eval_packages', to='epdb.package', verbose_name='Evaluation Packages')),
+                ('rule_packages', models.ManyToManyField(related_name='rule_packages', to='epdb.package', verbose_name='Rule Packages')),
+            ],
+            options={
+                'abstract': False,
+                'base_manager_name': 'objects',
+            },
+            bases=('epdb.epmodel',),
+        ),
+        migrations.CreateModel(
+            name='ApplicabilityDomain',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created', model_utils.fields.AutoCreatedField(default=django.utils.timezone.now, editable=False, verbose_name='created')),
+                ('modified', model_utils.fields.AutoLastModifiedField(default=django.utils.timezone.now, editable=False, verbose_name='modified')),
+                ('uuid', models.UUIDField(default=uuid.uuid4, unique=True, verbose_name='UUID of this object')),
+                ('name', models.TextField(default='no name', verbose_name='Name')),
+                ('description', models.TextField(default='no description', verbose_name='Descriptions')),
+                ('kv', models.JSONField(blank=True, default=dict, null=True)),
+                ('num_neighbours', models.FloatField(default=5)),
+                ('reliability_threshold', models.FloatField(default=0.5)),
+                ('local_compatibilty_threshold', models.FloatField(default=0.5)),
+                ('model', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='epdb.mlrelativereasoning')),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+        migrations.CreateModel(
+            name='SimpleAmbitRule',
+            fields=[
+                ('simplerule_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='epdb.simplerule')),
+                ('smirks', models.TextField(verbose_name='SMIRKS')),
+                ('reactant_filter_smarts', models.TextField(null=True, verbose_name='Reactant Filter SMARTS')),
+                ('product_filter_smarts', models.TextField(null=True, verbose_name='Product Filter SMARTS')),
+            ],
+            options={
+                'abstract': False,
+                'base_manager_name': 'objects',
+            },
+            bases=('epdb.simplerule',),
+        ),
+        migrations.CreateModel(
+            name='SimpleRDKitRule',
+            fields=[
+                ('simplerule_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='epdb.simplerule')),
+                ('reaction_smarts', models.TextField(verbose_name='SMIRKS')),
+            ],
+            options={
+                'abstract': False,
+                'base_manager_name': 'objects',
+            },
+            bases=('epdb.simplerule',),
+        ),
+        migrations.CreateModel(
+            name='SequentialRuleOrdering',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('order_index', models.IntegerField()),
+                ('sequential_rule', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='epdb.sequentialrule')),
+                ('simple_rule', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='epdb.simplerule')),
+            ],
+        ),
+        migrations.AddField(
+            model_name='sequentialrule',
+            name='simple_rules',
+            field=models.ManyToManyField(through='epdb.SequentialRuleOrdering', to='epdb.simplerule', verbose_name='Simple rules'),
+        ),
+        migrations.CreateModel(
+            name='ParallelRule',
+            fields=[
+                ('rule_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='epdb.rule')),
+                ('simple_rules', models.ManyToManyField(to='epdb.simplerule', verbose_name='Simple rules')),
+            ],
+            options={
+                'abstract': False,
+                'base_manager_name': 'objects',
+            },
+            bases=('epdb.rule',),
+        ),
+        migrations.AlterUniqueTogether(
+            name='compound',
+            unique_together={('uuid', 'package')},
+        ),
+        migrations.CreateModel(
+            name='GroupPackagePermission',
+            fields=[
+                ('permission_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, to='epdb.permission')),
+                ('uuid', models.UUIDField(default=uuid.uuid4, primary_key=True, serialize=False, verbose_name='UUID of this object')),
+                ('group', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='epdb.group', verbose_name='Permission to')),
+                ('package', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='epdb.package', verbose_name='Permission on')),
+            ],
+            options={
+                'unique_together': {('package', 'group')},
+            },
+            bases=('epdb.permission',),
+        ),
+        migrations.CreateModel(
+            name='UserPackagePermission',
+            fields=[
+                ('permission_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, to='epdb.permission')),
+                ('uuid', models.UUIDField(default=uuid.uuid4, primary_key=True, serialize=False, verbose_name='UUID of this object')),
+                ('package', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='epdb.package', verbose_name='Permission on')),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL, verbose_name='Permission to')),
+            ],
+            options={
+                'unique_together': {('package', 'user')},
+            },
+            bases=('epdb.permission',),
+        ),
+        migrations.CreateModel(
+            name='UserSettingPermission',
+            fields=[
+                ('permission_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, to='epdb.permission')),
+                ('uuid', models.UUIDField(default=uuid.uuid4, primary_key=True, serialize=False, verbose_name='UUID of this object')),
+                ('setting', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='epdb.setting', verbose_name='Permission on')),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL, verbose_name='Permission to')),
+            ],
+            options={
+                'unique_together': {('setting', 'user')},
+            },
+            bases=('epdb.permission',),
+        ),
+    ]

epdb/migrations/0002_externaldatabase_alter_apitoken_options_and_more.py

@@ -0,0 +1,128 @@
+# Generated by Django 5.2.1 on 2025-08-25 18:07
+
+import django.db.models.deletion
+import django.utils.timezone
+import model_utils.fields
+import uuid
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('contenttypes', '0002_remove_content_type_name'),
+        ('epdb', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='ExternalDatabase',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created', model_utils.fields.AutoCreatedField(default=django.utils.timezone.now, editable=False, verbose_name='created')),
+                ('modified', model_utils.fields.AutoLastModifiedField(default=django.utils.timezone.now, editable=False, verbose_name='modified')),
+                ('uuid', models.UUIDField(default=uuid.uuid4, editable=False, unique=True)),
+                ('name', models.CharField(max_length=100, unique=True, verbose_name='Database Name')),
+                ('full_name', models.CharField(blank=True, max_length=255, verbose_name='Full Database Name')),
+                ('description', models.TextField(blank=True, verbose_name='Description')),
+                ('base_url', models.URLField(blank=True, null=True, verbose_name='Base URL')),
+                ('url_pattern', models.CharField(blank=True, help_text="URL pattern with {id} placeholder, e.g., 'https://pubchem.ncbi.nlm.nih.gov/compound/{id}'", max_length=500, verbose_name='URL Pattern')),
+                ('is_active', models.BooleanField(default=True, verbose_name='Is Active')),
+            ],
+            options={
+                'verbose_name': 'External Database',
+                'verbose_name_plural': 'External Databases',
+                'db_table': 'epdb_external_database',
+                'ordering': ['name'],
+            },
+        ),
+        migrations.AlterModelOptions(
+            name='apitoken',
+            options={'ordering': ['-created'], 'verbose_name': 'API Token', 'verbose_name_plural': 'API Tokens'},
+        ),
+        migrations.AlterModelOptions(
+            name='edge',
+            options={},
+        ),
+        migrations.RemoveField(
+            model_name='edge',
+            name='polymorphic_ctype',
+        ),
+        migrations.AddField(
+            model_name='apitoken',
+            name='is_active',
+            field=models.BooleanField(default=True, help_text='Whether this token is active'),
+        ),
+        migrations.AddField(
+            model_name='apitoken',
+            name='modified',
+            field=model_utils.fields.AutoLastModifiedField(default=django.utils.timezone.now, editable=False, verbose_name='modified'),
+        ),
+        migrations.AddField(
+            model_name='applicabilitydomain',
+            name='functional_groups',
+            field=models.JSONField(blank=True, default=dict, null=True),
+        ),
+        migrations.AddField(
+            model_name='mlrelativereasoning',
+            name='app_domain',
+            field=models.ForeignKey(blank=True, default=None, null=True, on_delete=django.db.models.deletion.SET_NULL, to='epdb.applicabilitydomain'),
+        ),
+        migrations.AlterField(
+            model_name='apitoken',
+            name='created',
+            field=model_utils.fields.AutoCreatedField(default=django.utils.timezone.now, editable=False, verbose_name='created'),
+        ),
+        migrations.AlterField(
+            model_name='apitoken',
+            name='expires_at',
+            field=models.DateTimeField(blank=True, help_text='Token expiration time (null for no expiration)', null=True),
+        ),
+        migrations.AlterField(
+            model_name='apitoken',
+            name='hashed_key',
+            field=models.CharField(help_text='SHA-256 hash of the token key', max_length=128, unique=True),
+        ),
+        migrations.AlterField(
+            model_name='apitoken',
+            name='name',
+            field=models.CharField(help_text='Descriptive name for this token', max_length=100),
+        ),
+        migrations.AlterField(
+            model_name='apitoken',
+            name='user',
+            field=models.ForeignKey(help_text='User who owns this token', on_delete=django.db.models.deletion.CASCADE, related_name='api_tokens', to=settings.AUTH_USER_MODEL),
+        ),
+        migrations.AlterField(
+            model_name='applicabilitydomain',
+            name='num_neighbours',
+            field=models.IntegerField(default=5),
+        ),
+        migrations.AlterModelTable(
+            name='apitoken',
+            table='epdb_api_token',
+        ),
+        migrations.CreateModel(
+            name='ExternalIdentifier',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created', model_utils.fields.AutoCreatedField(default=django.utils.timezone.now, editable=False, verbose_name='created')),
+                ('modified', model_utils.fields.AutoLastModifiedField(default=django.utils.timezone.now, editable=False, verbose_name='modified')),
+                ('uuid', models.UUIDField(default=uuid.uuid4, editable=False, unique=True)),
+                ('object_id', models.IntegerField()),
+                ('identifier_value', models.CharField(max_length=255, verbose_name='Identifier Value')),
+                ('url', models.URLField(blank=True, null=True, verbose_name='Direct URL')),
+                ('is_primary', models.BooleanField(default=False, help_text='Mark this as the primary identifier for this database', verbose_name='Is Primary')),
+                ('content_type', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='contenttypes.contenttype')),
+                ('database', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='epdb.externaldatabase', verbose_name='External Database')),
+            ],
+            options={
+                'verbose_name': 'External Identifier',
+                'verbose_name_plural': 'External Identifiers',
+                'db_table': 'epdb_external_identifier',
+                'indexes': [models.Index(fields=['content_type', 'object_id'], name='epdb_extern_content_b76813_idx'), models.Index(fields=['database', 'identifier_value'], name='epdb_extern_databas_486422_idx')],
+                'unique_together': {('content_type', 'object_id', 'database', 'identifier_value')},
+            },
+        ),
+    ]

epdb/migrations/0003_applicabilitydomain_url_compound_url_and_more.py

@@ -0,0 +1,229 @@
+# Generated by Django 5.2.1 on 2025-08-26 17:05
+
+from django.db import migrations, models
+
+
+def populate_url(apps, schema_editor):
+    MODELS = [
+        'User',
+        'Group',
+        'Package',
+        'Compound',
+        'CompoundStructure',
+        'Pathway',
+        'Edge',
+        'Node',
+        'Reaction',
+        'SimpleAmbitRule',
+        'SimpleRDKitRule',
+        'ParallelRule',
+        'SequentialRule',
+        'Scenario',
+        'Setting',
+        'MLRelativeReasoning',
+        'EnviFormer',
+        'ApplicabilityDomain',
+    ]
+    for model in MODELS:
+        obj_cls = apps.get_model("epdb", model)
+        print(f"Populating url for {model}")
+        for obj in obj_cls.objects.all():
+            obj.url = assemble_url(obj)
+            if obj.url is None:
+                raise ValueError(f"Could not assemble url for {obj}")
+            obj.save()
+
+
+def assemble_url(obj):
+    from django.conf import settings as s
+    match obj.__class__.__name__:
+        case 'User':
+            return '{}/user/{}'.format(s.SERVER_URL, obj.uuid)
+        case 'Group':
+            return '{}/user/{}'.format(s.SERVER_URL, obj.uuid)
+        case 'Package':
+            return '{}/package/{}'.format(s.SERVER_URL, obj.uuid)
+        case 'Compound':
+            return '{}/compound/{}'.format(obj.package.url, obj.uuid)
+        case 'CompoundStructure':
+            return '{}/structure/{}'.format(obj.compound.url, obj.uuid)
+        case 'SimpleAmbitRule':
+            return '{}/simple-ambit-rule/{}'.format(obj.package.url, obj.uuid)
+        case 'SimpleRDKitRule':
+            return '{}/simple-rdkit-rule/{}'.format(obj.package.url, obj.uuid)
+        case 'ParallelRule':
+            return '{}/parallel-rule/{}'.format(obj.package.url, obj.uuid)
+        case 'SequentialRule':
+            return '{}/sequential-rule/{}'.format(obj.compound.url, obj.uuid)
+        case 'Reaction':
+            return '{}/reaction/{}'.format(obj.package.url, obj.uuid)
+        case 'Pathway':
+            return '{}/pathway/{}'.format(obj.package.url, obj.uuid)
+        case 'Node':
+            return '{}/node/{}'.format(obj.pathway.url, obj.uuid)
+        case 'Edge':
+            return '{}/edge/{}'.format(obj.pathway.url, obj.uuid)
+        case 'MLRelativeReasoning':
+            return '{}/model/{}'.format(obj.package.url, obj.uuid)
+        case 'EnviFormer':
+            return '{}/model/{}'.format(obj.package.url, obj.uuid)
+        case 'ApplicabilityDomain':
+            return '{}/model/{}/applicability-domain/{}'.format(obj.model.package.url, obj.model.uuid, obj.uuid)
+        case 'Scenario':
+            return '{}/scenario/{}'.format(obj.package.url, obj.uuid)
+        case 'Setting':
+            return '{}/setting/{}'.format(s.SERVER_URL, obj.uuid)
+        case _:
+            raise ValueError(f"Unknown model {obj.__class__.__name__}")
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ('epdb', '0002_externaldatabase_alter_apitoken_options_and_more'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='applicabilitydomain',
+            name='url',
+            field=models.TextField(null=True, unique=False, verbose_name='URL'),
+        ),
+        migrations.AddField(
+            model_name='compound',
+            name='url',
+            field=models.TextField(null=True, unique=False, verbose_name='URL'),
+        ),
+        migrations.AddField(
+            model_name='compoundstructure',
+            name='url',
+            field=models.TextField(null=True, unique=False, verbose_name='URL'),
+        ),
+        migrations.AddField(
+            model_name='edge',
+            name='url',
+            field=models.TextField(null=True, unique=False, verbose_name='URL'),
+        ),
+        migrations.AddField(
+            model_name='epmodel',
+            name='url',
+            field=models.TextField(null=True, unique=False, verbose_name='URL'),
+        ),
+        migrations.AddField(
+            model_name='group',
+            name='url',
+            field=models.TextField(null=True, unique=False, verbose_name='URL'),
+        ),
+        migrations.AddField(
+            model_name='node',
+            name='url',
+            field=models.TextField(null=True, unique=False, verbose_name='URL'),
+        ),
+        migrations.AddField(
+            model_name='package',
+            name='url',
+            field=models.TextField(null=True, unique=False, verbose_name='URL'),
+        ),
+        migrations.AddField(
+            model_name='pathway',
+            name='url',
+            field=models.TextField(null=True, unique=False, verbose_name='URL'),
+        ),
+        migrations.AddField(
+            model_name='reaction',
+            name='url',
+            field=models.TextField(null=True, unique=False, verbose_name='URL'),
+        ),
+        migrations.AddField(
+            model_name='rule',
+            name='url',
+            field=models.TextField(null=True, unique=False, verbose_name='URL'),
+        ),
+        migrations.AddField(
+            model_name='scenario',
+            name='url',
+            field=models.TextField(null=True, unique=False, verbose_name='URL'),
+        ),
+        migrations.AddField(
+            model_name='setting',
+            name='url',
+            field=models.TextField(null=True, unique=False, verbose_name='URL'),
+        ),
+        migrations.AddField(
+            model_name='user',
+            name='url',
+            field=models.TextField(null=True, unique=False, verbose_name='URL'),
+        ),
+
+        migrations.RunPython(populate_url, reverse_code=migrations.RunPython.noop),
+
+        migrations.AlterField(
+            model_name='applicabilitydomain',
+            name='url',
+            field=models.TextField(null=True, unique=True, verbose_name='URL'),
+        ),
+        migrations.AlterField(
+            model_name='compound',
+            name='url',
+            field=models.TextField(null=True, unique=True, verbose_name='URL'),
+        ),
+        migrations.AlterField(
+            model_name='compoundstructure',
+            name='url',
+            field=models.TextField(null=True, unique=True, verbose_name='URL'),
+        ),
+        migrations.AlterField(
+            model_name='edge',
+            name='url',
+            field=models.TextField(null=True, unique=True, verbose_name='URL'),
+        ),
+        migrations.AlterField(
+            model_name='epmodel',
+            name='url',
+            field=models.TextField(null=True, unique=True, verbose_name='URL'),
+        ),
+        migrations.AlterField(
+            model_name='group',
+            name='url',
+            field=models.TextField(null=True, unique=True, verbose_name='URL'),
+        ),
+        migrations.AlterField(
+            model_name='node',
+            name='url',
+            field=models.TextField(null=True, unique=True, verbose_name='URL'),
+        ),
+        migrations.AlterField(
+            model_name='package',
+            name='url',
+            field=models.TextField(null=True, unique=True, verbose_name='URL'),
+        ),
+        migrations.AlterField(
+            model_name='pathway',
+            name='url',
+            field=models.TextField(null=True, unique=True, verbose_name='URL'),
+        ),
+        migrations.AlterField(
+            model_name='reaction',
+            name='url',
+            field=models.TextField(null=True, unique=True, verbose_name='URL'),
+        ),
+        migrations.AlterField(
+            model_name='rule',
+            name='url',
+            field=models.TextField(null=True, unique=True, verbose_name='URL'),
+        ),
+        migrations.AlterField(
+            model_name='scenario',
+            name='url',
+            field=models.TextField(null=True, unique=True, verbose_name='URL'),
+        ),
+        migrations.AlterField(
+            model_name='setting',
+            name='url',
+            field=models.TextField(null=True, unique=True, verbose_name='URL'),
+        ),
+        migrations.AlterField(
+            model_name='user',
+            name='url',
+            field=models.TextField(null=True, unique=True, verbose_name='URL'),
+        ),
+    ]

epdb/models.py

@@ -37,9 +37,8 @@ logger = logging.getLogger(__name__)
 
 class User(AbstractUser):
     email = models.EmailField(unique=True)
-
+    uuid = models.UUIDField(null=False, blank=False, verbose_name='UUID of this object', unique=True, default=uuid4)
-    uuid = models.UUIDField(null=False, blank=False, verbose_name='UUID of this object', unique=True,
+    url = models.TextField(blank=False, null=True, verbose_name='URL', unique=True)
-                            default=uuid4)
     default_package = models.ForeignKey('epdb.Package', verbose_name='Default Package', null=True,
                                         on_delete=models.SET_NULL)
     default_group = models.ForeignKey('Group', verbose_name='Default Group', null=True, blank=False,
@@ -50,8 +49,13 @@ class User(AbstractUser):
     USERNAME_FIELD = "email"
     REQUIRED_FIELDS = ['username']
 
-    @property
+    def save(self, *args, **kwargs):
-    def url(self):
+        if not self.url:
+            self.url = self._url()
+
+        super().save(*args, **kwargs)
+
+    def _url(self):
         return '{}/user/{}'.format(s.SERVER_URL, self.uuid)
 
     def prediction_settings(self):
@@ -169,6 +173,7 @@ class APIToken(TimeStampedModel):
 
 class Group(TimeStampedModel):
     uuid = models.UUIDField(null=False, blank=False, verbose_name='UUID of this object', unique=True, default=uuid4)
+    url = models.TextField(blank=False, null=True, verbose_name='URL', unique=True)
     name = models.TextField(blank=False, null=False, verbose_name='Group name')
     owner = models.ForeignKey("User", verbose_name='Group Owner', on_delete=models.CASCADE)
     public = models.BooleanField(verbose_name='Public Group', default=False)
@@ -179,8 +184,13 @@ class Group(TimeStampedModel):
     def __str__(self):
         return f"{self.name} (pk={self.pk})"
 
-    @property
+    def save(self, *args, **kwargs):
-    def url(self):
+        if not self.url:
+            self.url = self._url()
+
+        super().save(*args, **kwargs)
+
+    def _url(self):
         return '{}/group/{}'.format(s.SERVER_URL, self.uuid)
 
 
@@ -476,11 +486,18 @@ class EnviPathModel(TimeStampedModel):
     name = models.TextField(blank=False, null=False, verbose_name='Name', default='no name')
     description = models.TextField(blank=False, null=False, verbose_name='Descriptions', default='no description')
 
+    url = models.TextField(blank=False, null=True, verbose_name='URL', unique=True)
+
     kv = JSONField(null=True, blank=True, default=dict)
 
-    @property
+    def save(self, *args, **kwargs):
+        if not self.url:
+            self.url = self._url()
+
+        super().save(*args, **kwargs)
+
     @abc.abstractmethod
-    def url(self):
+    def _url(self):
         pass
 
     def simple_json(self, include_description=False):
@@ -585,8 +602,7 @@ class Package(EnviPathModel):
     def models(self):
         return EPModel.objects.filter(package=self)
 
-    @property
+    def _url(self):
-    def url(self):
         return '{}/package/{}'.format(s.SERVER_URL, self.uuid)
 
     def get_applicable_rules(self):
@@ -632,8 +648,7 @@ class Compound(EnviPathModel, AliasMixin, ScenarioMixin, ChemicalIdentifierMixin
     def normalized_structure(self):
         return CompoundStructure.objects.get(compound=self, normalized_structure=True)
 
-    @property
+    def _url(self):
-    def url(self):
         return '{}/compound/{}'.format(self.package.url, self.uuid)
 
     @transaction.atomic
@@ -773,8 +788,7 @@ class CompoundStructure(EnviPathModel, AliasMixin, ScenarioMixin, ChemicalIdenti
 
         super().save(*args, **kwargs)
 
-    @property
+    def _url(self):
-    def url(self):
         return '{}/structure/{}'.format(self.compound.url, self.uuid)
 
     @staticmethod
@@ -917,8 +931,7 @@ class SimpleAmbitRule(SimpleRule):
         r.save()
         return r
 
-    @property
+    def _url(self):
-    def url(self):
         return '{}/simple-ambit-rule/{}'.format(self.package.url, self.uuid)
 
     def apply(self, smiles):
@@ -953,8 +966,7 @@ class SimpleRDKitRule(SimpleRule):
     def apply(self, smiles):
         return FormatConverter.apply(smiles, self.reaction_smarts)
 
-    @property
+    def _url(self):
-    def url(self):
         return '{}/simple-rdkit-rule/{}'.format(self.package.url, self.uuid)
 
 
@@ -963,8 +975,7 @@ class SimpleRDKitRule(SimpleRule):
 class ParallelRule(Rule):
     simple_rules = models.ManyToManyField('epdb.SimpleRule', verbose_name='Simple rules')
 
-    @property
+    def _url(self):
-    def url(self):
         return '{}/parallel-rule/{}'.format(self.package.url, self.uuid)
 
     @property
@@ -1003,8 +1014,7 @@ class SequentialRule(Rule):
     simple_rules = models.ManyToManyField('epdb.SimpleRule', verbose_name='Simple rules',
                                           through='SequentialRuleOrdering')
 
-    @property
+    def _url(self):
-    def url(self):
         return '{}/sequential-rule/{}'.format(self.compound.url, self.uuid)
 
     @property
@@ -1039,8 +1049,7 @@ class Reaction(EnviPathModel, AliasMixin, ScenarioMixin, ReactionIdentifierMixin
 
     external_identifiers = GenericRelation('ExternalIdentifier')
 
-    @property
+    def _url(self):
-    def url(self):
         return '{}/reaction/{}'.format(self.package.url, self.uuid)
 
     @staticmethod
@@ -1167,8 +1176,7 @@ class Pathway(EnviPathModel, AliasMixin, ScenarioMixin):
     def edges(self):
         return Edge.objects.filter(pathway=self)
 
-    @property
+    def _url(self):
-    def url(self):
         return '{}/pathway/{}'.format(self.package.url, self.uuid)
 
     # Mode
@@ -1386,8 +1394,7 @@ class Node(EnviPathModel, AliasMixin, ScenarioMixin):
     out_edges = models.ManyToManyField('epdb.Edge', verbose_name='Outgoing Edges')
     depth = models.IntegerField(verbose_name='Node depth', null=False, blank=False)
 
-    @property
+    def _url(self):
-    def url(self):
         return '{}/node/{}'.format(self.pathway.url, self.uuid)
 
     def d3_json(self):
@@ -1463,8 +1470,7 @@ class Edge(EnviPathModel, AliasMixin, ScenarioMixin):
     start_nodes = models.ManyToManyField('epdb.Node', verbose_name='Start Nodes', related_name='edge_educts')
     end_nodes = models.ManyToManyField('epdb.Node', verbose_name='End Nodes', related_name='edge_products')
 
-    @property
+    def _url(self):
-    def url(self):
         return '{}/edge/{}'.format(self.pathway.url, self.uuid)
 
     def d3_json(self):
@@ -1556,8 +1562,7 @@ class Edge(EnviPathModel, AliasMixin, ScenarioMixin):
 class EPModel(PolymorphicModel, EnviPathModel):
     package = models.ForeignKey('epdb.Package', verbose_name='Package', on_delete=models.CASCADE, db_index=True)
 
-    @property
+    def _url(self):
-    def url(self):
         return '{}/model/{}'.format(self.package.url, self.uuid)
 
 
@@ -2173,8 +2178,7 @@ class Scenario(EnviPathModel):
 
     additional_information = models.JSONField(verbose_name='Additional Information')
 
-    @property
+    def _url(self):
-    def url(self):
         return '{}/scenario/{}'.format(self.package.url, self.uuid)
 
     @staticmethod
@@ -2238,8 +2242,7 @@ class Setting(EnviPathModel):
                               blank=True)
     model_threshold = models.FloatField(null=True, blank=True, verbose_name='Setting Model Threshold', default=0.25)
 
-    @property
+    def _url(self):
-    def url(self):
         return '{}/setting/{}'.format(s.SERVER_URL, self.uuid)
 
     @cached_property

epdb/views.py

@@ -439,16 +439,7 @@ def scenarios(request):
         if request.GET.get('all'):
             return JsonResponse({
                 "objects": [
-                    {"name": s.name, "url": s.full_url, "reviewed": True}
+                    {"name": s.name, "url": s.url, "reviewed": True} for s in reviewed_scenario_qs
-                    for s in reviewed_scenario_qs.annotate(
-                        full_url=Concat(
-                            Value(s.SERVER_URL + '/package/'),
-                            F("package__uuid"),
-                            Value("/scenario/"),
-                            F("uuid"),
-                            output_field=CharField(),
-                        )
-                    )
                 ]
             })