Add SelectionList concept

docs/docs/part/parameter.md

@@ -26,6 +26,7 @@ Parameter templates are used to define the different types of parameters which a
 | Units | Optional units field (*must be a valid [physical unit](#parameter-units)*) |
 | Choices | A comma-separated list of valid choices for parameter values linked to this template. |
 | Checkbox | If set, parameters linked to this template can only be assigned values *true* or *false* |
+| Selection List | If set, parameters linked to this template can only be assigned values from the linked [selection list](#selection-lists) |
 
 ### Create Template
 
@@ -105,3 +106,12 @@ Parameter sorting takes unit conversion into account, meaning that values provid
 {% with id="sort_by_param_units", url="part/part_sorting_units.png", description="Sort by Parameter Units" %}
 {% include 'img.html' %}
 {% endwith %}
+
+### Selection Lists
+
+Selection Lists can be used to add a large number of predefined values to a parameter template. This can be useful for parameters which must be selected from a large predefined list of values (e.g. a list of standardised colo codes). Choices on templates are limited to 5000 characters, selection lists can be used to overcome this limitation.
+
+It is possible that plugins lock selection lists to ensure a known state.
+
+
+Administration of lists can be done through the Part Parameter section in the Admin Center or via the API.

src/backend/InvenTree/InvenTree/api_version.py

@@ -1,13 +1,16 @@
 """InvenTree API version information."""
 
 # InvenTree API version
-INVENTREE_API_VERSION = 285
+INVENTREE_API_VERSION = 286
 
 """Increment this API version number whenever there is a significant change to the API that any clients need to know about."""
 
 
 INVENTREE_API_TEXT = """
 
+v286 - 2024-11-26 : https://github.com/inventree/InvenTree/pull/8054
+    - Adds "SelectionList" and "SelectionListEntry" API endpoints
+
 v285 - 2024-11-25 : https://github.com/inventree/InvenTree/pull/8559
     - Adds better description for registration endpoints
 

src/backend/InvenTree/common/api.py

@@ -808,6 +808,82 @@ def get_queryset(self):
         return get_icon_packs().values()
 
 
+class SelectionListList(ListCreateAPI):
+    """List view for SelectionList objects."""
+
+    queryset = common.models.SelectionList.objects.all()
+    serializer_class = common.serializers.SelectionListSerializer
+    permission_classes = [permissions.IsAuthenticated]
+
+    def get_queryset(self):
+        """Override the queryset method to include entry count."""
+        return self.serializer_class.annotate_queryset(super().get_queryset())
+
+
+class SelectionListDetail(RetrieveUpdateDestroyAPI):
+    """Detail view for a SelectionList object."""
+
+    queryset = common.models.SelectionList.objects.all()
+    serializer_class = common.serializers.SelectionListSerializer
+    permission_classes = [permissions.IsAuthenticated]
+
+
+class EntryMixin:
+    """Mixin for SelectionEntry views."""
+
+    queryset = common.models.SelectionListEntry.objects.all()
+    serializer_class = common.serializers.SelectionEntrySerializer
+    permission_classes = [permissions.IsAuthenticated]
+    lookup_url_kwarg = 'entrypk'
+
+    def get_queryset(self):
+        """Prefetch related fields."""
+        pk = self.kwargs.get('pk', None)
+        queryset = super().get_queryset().filter(list=pk)
+        queryset = queryset.prefetch_related('list')
+        return queryset
+
+
+class SelectionEntryList(EntryMixin, ListCreateAPI):
+    """List view for SelectionEntry objects."""
+
+
+class SelectionEntryDetail(EntryMixin, RetrieveUpdateDestroyAPI):
+    """Detail view for a SelectionEntry object."""
+
+
+selection_urls = [
+    path(
+        '<int:pk>/',
+        include([
+            # Entries
+            path(
+                'entry/',
+                include([
+                    path(
+                        '<int:entrypk>/',
+                        include([
+                            path(
+                                '',
+                                SelectionEntryDetail.as_view(),
+                                name='api-selectionlistentry-detail',
+                            )
+                        ]),
+                    ),
+                    path(
+                        '',
+                        SelectionEntryList.as_view(),
+                        name='api-selectionlistentry-list',
+                    ),
+                ]),
+            ),
+            path('', SelectionListDetail.as_view(), name='api-selectionlist-detail'),
+        ]),
+    ),
+    path('', SelectionListList.as_view(), name='api-selectionlist-list'),
+]
+
+# API URL patterns
 settings_api_urls = [
     # User settings
     path(
@@ -1016,6 +1092,8 @@ def get_queryset(self):
     ),
     # Icons
     path('icons/', IconList.as_view(), name='api-icon-list'),
+    # Selection lists
+    path('selection/', include(selection_urls)),
 ]
 
 admin_api_urls = [

src/backend/InvenTree/common/migrations/0032_selectionlist_selectionlistentry_and_more.py

@@ -0,0 +1,191 @@
+# Generated by Django 4.2.16 on 2024-11-24 12:41
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+import InvenTree.models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ('plugin', '0009_alter_pluginconfig_key'),
+        ('common', '0031_auto_20241026_0024'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='SelectionList',
+            fields=[
+                (
+                    'id',
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name='ID',
+                    ),
+                ),
+                (
+                    'metadata',
+                    models.JSONField(
+                        blank=True,
+                        help_text='JSON metadata field, for use by external plugins',
+                        null=True,
+                        verbose_name='Plugin Metadata',
+                    ),
+                ),
+                (
+                    'name',
+                    models.CharField(
+                        help_text='Name of the selection list',
+                        max_length=100,
+                        unique=True,
+                        verbose_name='Name',
+                    ),
+                ),
+                (
+                    'description',
+                    models.CharField(
+                        blank=True,
+                        help_text='Description of the selection list',
+                        max_length=250,
+                        verbose_name='Description',
+                    ),
+                ),
+                (
+                    'locked',
+                    models.BooleanField(
+                        default=False,
+                        help_text='Is this selection list locked?',
+                        verbose_name='Locked',
+                    ),
+                ),
+                (
+                    'active',
+                    models.BooleanField(
+                        default=True,
+                        help_text='Can this selection list be used?',
+                        verbose_name='Active',
+                    ),
+                ),
+                (
+                    'source_string',
+                    models.CharField(
+                        blank=True,
+                        help_text='Optional string identifying the source used for this list',
+                        max_length=1000,
+                        verbose_name='Source String',
+                    ),
+                ),
+                (
+                    'created',
+                    models.DateTimeField(
+                        auto_now_add=True,
+                        help_text='Date and time that the selection list was created',
+                        verbose_name='Created',
+                    ),
+                ),
+                (
+                    'last_updated',
+                    models.DateTimeField(
+                        auto_now=True,
+                        help_text='Date and time that the selection list was last updated',
+                        verbose_name='Last Updated',
+                    ),
+                ),
+            ],
+            options={
+                'verbose_name': 'Selection List',
+                'verbose_name_plural': 'Selection Lists',
+            },
+            bases=(InvenTree.models.PluginValidationMixin, models.Model),
+        ),
+        migrations.CreateModel(
+            name='SelectionListEntry',
+            fields=[
+                (
+                    'id',
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name='ID',
+                    ),
+                ),
+                (
+                    'value',
+                    models.CharField(
+                        help_text='Value of the selection list entry',
+                        max_length=255,
+                        verbose_name='Value',
+                    ),
+                ),
+                (
+                    'label',
+                    models.CharField(
+                        help_text='Label for the selection list entry',
+                        max_length=255,
+                        verbose_name='Label',
+                    ),
+                ),
+                (
+                    'description',
+                    models.CharField(
+                        blank=True,
+                        help_text='Description of the selection list entry',
+                        max_length=250,
+                        verbose_name='Description',
+                    ),
+                ),
+                (
+                    'active',
+                    models.BooleanField(
+                        default=True,
+                        help_text='Is this selection list entry active?',
+                        verbose_name='Active',
+                    ),
+                ),
+                (
+                    'list',
+                    models.ForeignKey(
+                        blank=True,
+                        help_text='Selection list to which this entry belongs',
+                        null=True,
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name='entries',
+                        to='common.selectionlist',
+                        verbose_name='Selection List',
+                    ),
+                ),
+            ],
+            options={
+                'verbose_name': 'Selection List Entry',
+                'verbose_name_plural': 'Selection List Entries',
+                'unique_together': {('list', 'value')},
+            },
+        ),
+        migrations.AddField(
+            model_name='selectionlist',
+            name='default',
+            field=models.ForeignKey(
+                blank=True,
+                help_text='Default entry for this selection list',
+                null=True,
+                on_delete=django.db.models.deletion.SET_NULL,
+                to='common.selectionlistentry',
+                verbose_name='Default Entry',
+            ),
+        ),
+        migrations.AddField(
+            model_name='selectionlist',
+            name='source_plugin',
+            field=models.ForeignKey(
+                blank=True,
+                help_text='Plugin which provides the selection list',
+                null=True,
+                on_delete=django.db.models.deletion.SET_NULL,
+                to='plugin.pluginconfig',
+                verbose_name='Source Plugin',
+            ),
+        ),
+    ]