add AssetTemplate

app/projects/admin.py

@@ -10,3 +10,11 @@
 admin.site.register(Asset)
 admin.site.register(Bus)
 admin.site.register(ConnectionLink)
+
+
+class AssetTemplateAdmin(admin.ModelAdmin):
+    list_display = ("id", "visibility", "name", "asset_type")
+    list_filter = ("visibility", "asset_type")
+
+
+admin.site.register(AssetTemplate, AssetTemplateAdmin)

app/projects/migrations/0026_assettemplate.py

@@ -0,0 +1,70 @@
+# Generated by Django 4.2.4 on 2025-10-21 11:43
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ("projects", "0025_connectionport"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="AssetTemplate",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("name", models.CharField(max_length=255)),
+                ("desc", models.TextField(blank=True)),
+                (
+                    "visibility",
+                    models.CharField(
+                        choices=[
+                            ("project", "Project"),
+                            ("account", "Account"),
+                            ("global", "Everyone"),
+                        ],
+                        max_length=8,
+                    ),
+                ),
+                ("created_ts", models.DateTimeField(auto_now_add=True)),
+                ("parameters", models.JSONField()),
+                (
+                    "asset_type",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        to="projects.assettype",
+                    ),
+                ),
+                (
+                    "created_by",
+                    models.ForeignKey(
+                        blank=True,
+                        null=True,
+                        on_delete=django.db.models.deletion.SET_NULL,
+                        to=settings.AUTH_USER_MODEL,
+                    ),
+                ),
+                (
+                    "project",
+                    models.ForeignKey(
+                        blank=True,
+                        null=True,
+                        on_delete=django.db.models.deletion.SET_NULL,
+                        to="projects.project",
+                    ),
+                ),
+            ],
+        ),
+    ]

app/projects/models/base_models.py

@@ -472,6 +472,9 @@ def remove_field(self, field_name):
             temp.pop(temp.index(field_name))
             self.asset_fields = "[" + ",".join(temp) + "]"
 
+    def __str__(self):
+        return self.asset_type
+
 
 class TopologyNode(models.Model):
     name = models.CharField(max_length=60, null=False, blank=False)
@@ -749,6 +752,29 @@ def is_input_timeseries_empty(self):
         return self.input_timeseries == ""
 
 
+class AssetTemplate(models.Model):
+    VISIBILITY_CHOICES = [
+        ("project", "Project"),
+        ("account", "Account"),
+        ("global", "Everyone"),
+    ]
+    name = models.CharField(max_length=255)
+    desc = models.TextField(blank=True)
+    project = models.ForeignKey(
+        Project, on_delete=models.SET_NULL, null=True, blank=True
+    )
+    visibility = models.CharField(max_length=8, choices=VISIBILITY_CHOICES)
+    created_by = models.ForeignKey(
+        settings.AUTH_USER_MODEL,
+        on_delete=models.SET_NULL,
+        null=True,
+        blank=True,
+    )
+    created_ts = models.DateTimeField(auto_now_add=True)
+    asset_type = models.ForeignKey(AssetType, on_delete=models.CASCADE)
+    parameters = models.JSONField()
+
+
 class COPCalculator(models.Model):
 
     scenario = models.ForeignKey(

app/projects/scenario_topology_helpers.py

@@ -5,6 +5,7 @@
 from projects.models import (
     Bus,
     AssetType,
+    AssetTemplate,
     Scenario,
     ConnectionLink,
     Asset,
@@ -18,10 +19,13 @@
 )
 import json
 from django.core.exceptions import NON_FIELD_ERRORS, ValidationError
+from django.db.models import Value
+from django.db.models.functions import Concat
 from projects.forms import AssetCreateForm, BusForm, StorageForm
 from django.template.loader import get_template
 from django.utils.translation import gettext_lazy as _
 
+
 # region sent db nodes to js
 from django.http import JsonResponse
 import logging
@@ -285,10 +289,15 @@ def handle_storage_unit_form_post(
             return JsonResponse({"success": False, "exception": ex}, status=422)
 
     logger.warning(f"The submitted asset has erroneous field values.")
-    form_html = get_template("asset/storage_asset_create_form.html")
-    return JsonResponse(
-        {"success": False, "form_html": form_html.render({"form": form})}, status=422
+    form_html = get_template("asset/storage_asset_create_form.html").render(
+        {
+            "form": form,
+            "templates": get_available_templates(
+                asset_type_name, scenario.project, request.user
+            ),
+        }
     )
+    return JsonResponse({"success": False, "form_html": form_html}, status=422)
 
 
 def handle_asset_form_post(request, scen_id=0, asset_type_name="", asset_uuid=None):
@@ -365,10 +374,15 @@ def handle_asset_form_post(request, scen_id=0, asset_type_name="", asset_uuid=No
         return JsonResponse({"success": True, "asset_id": asset.unique_id}, status=200)
     logger.warning(f"The submitted asset has erroneous field values.")
 
-    form_html = get_template("asset/asset_create_form.html")
-    return JsonResponse(
-        {"success": False, "form_html": form_html.render({"form": form})}, status=422
+    form_html = get_template("asset/asset_create_form.html").render(
+        {
+            "form": form,
+            "templates": get_available_templates(
+                asset_type_name, scenario.project, request.user
+            ),
+        }
     )
+    return JsonResponse({"success": False, "form_html": form_html}, status=422)
 
 
 def load_scenario_topology_from_db(scen_id):
@@ -884,3 +898,25 @@ def create_ESS_objects(all_ess_assets_node_list, scen_id):
         if asset.name == "capacity":
             # check if there is a connection link to a bus
             pass
+
+
+def get_available_templates(asset_type_name, project, user):
+    # collect available templates
+    asset_templates = AssetTemplate.objects.filter(
+        asset_type__asset_type=asset_type_name
+    ).order_by("created_ts")
+    # project templates
+    project_templates = asset_templates.filter(
+        visibility="project", project=project
+    ).annotate(display_name=Concat("name", Value(" (prj)")))
+    # account templates
+    account_templates = asset_templates.filter(
+        visibility="account", created_by=user
+    ).annotate(display_name=Concat("name", Value(" (acc)")))
+    # global templates
+    global_templates = asset_templates.filter(visibility="global").annotate(
+        display_name=Concat("name", Value(" (std)"))
+    )
+    return AssetTemplate.objects.none().union(
+        project_templates, account_templates, global_templates
+    )

app/projects/urls.py

@@ -155,7 +155,7 @@
         name="get_constant_timeseries_id",
     ),
     re_path(
-        "get/constant/timeseries/id/(?P<ts_length>\d+)/value/(?P<value>\d+(\.\d+)?)/$",
+        r"get/constant/timeseries/id/(?P<ts_length>\d+)/value/(?P<value>\d+(\.\d+)?)/$",
         get_constant_timeseries_id,
         name="get_constant_timeseries_id",
     ),
@@ -210,6 +210,12 @@
         asset_cops_create_or_update,
         name="asset_cops_create_or_update",
     ),
+    # templates
+    path(
+        "project/<int:project_id>/template/",
+        template_get_or_create,
+        name="template_get_or_create",
+    ),
     # ParameterChangeTracker (track of simulated scenario changes)
     path(
         "reset_scenario_changes/<int:scen_id>",

app/projects/views.py

@@ -37,6 +37,7 @@
     Comment,
     ConnectionLink,
     AssetType,
+    AssetTemplate,
     UseCase,
     Scenario,
     Simulation,
@@ -64,6 +65,7 @@
     duplicate_scenario_connections,
     load_scenario_from_dict,
     load_project_from_dict,
+    get_available_templates,
 )
 from projects.helpers import format_scenario_for_mvs, PARAMETERS
 from dashboard.helpers import fetch_user_projects
@@ -1618,7 +1620,7 @@ def get_asset_create_form(request, scen_id=0, asset_type_name="", asset_uuid=Non
             )
         return render(request, "asset/bus_create_form.html", {"form": form})
 
-    elif asset_type_name in ["bess", "h2ess", "gess", "hess"]:
+    if asset_type_name in ["bess", "h2ess", "gess", "hess"]:
         if asset_uuid:
             existing_ess_asset = get_object_or_404(Asset, unique_id=asset_uuid)
             ess_asset_children = Asset.objects.filter(
@@ -1669,7 +1671,16 @@ def get_asset_create_form(request, scen_id=0, asset_type_name="", asset_uuid=Non
                 input_output_mapping=input_output_mapping,
                 initial={"name": default_name},
             )
-        return render(request, "asset/storage_asset_create_form.html", {"form": form})
+        return render(
+            request,
+            "asset/storage_asset_create_form.html",
+            {
+                "form": form,
+                "templates": get_available_templates(
+                    asset_type_name, scenario.project, request.user
+                ),
+            },
+        )
     else:  # all other assets
 
         if asset_uuid:
@@ -1703,6 +1714,9 @@ def get_asset_create_form(request, scen_id=0, asset_type_name="", asset_uuid=Non
 
         context = {
             "form": form,
+            "templates": get_available_templates(
+                asset_type_name, scenario.project, request.user
+            ),
             "asset_type_name": asset_type_name,
             "input_timeseries_data": input_timeseries_data,
             "input_timeseries_timestamps": json.dumps(
@@ -1845,6 +1859,38 @@ def asset_cops_create_or_update(
 # endregion Asset
 
 
+# templates
+@login_required
+@require_http_methods(["GET", "POST"])
+def template_get_or_create(request, project_id):
+    if request.method == "GET":
+        template = get_object_or_404(AssetTemplate, id=int(request.GET.get("id")))
+        # check permissions
+        if template.visibility == "project" and project_id != template.project_id:
+            raise PermissionDenied
+        if template.visibility == "account" and request.user != template.created_by:
+            raise PermissionDenied
+        # visibility = global needs no check
+        return JsonResponse(template.parameters)
+
+    # POST: create new template
+    asset_type = get_object_or_404(AssetType, asset_type=request.POST["asset_type"])
+    template = AssetTemplate.objects.create(
+        name=request.POST["name"],
+        desc=request.POST["desc"],
+        project_id=project_id,
+        visibility=request.POST["visibility"],
+        created_by=request.user,
+        asset_type=asset_type,
+        parameters=json.loads(request.POST["data"]),
+    )
+    if request.POST["request_global"] == "true":
+        logger.warning(
+            f"AssetTemplate #{template.id} ({template.name}) should be made public"
+        )
+    return HttpResponse(status=201)  # created
+
+
 # region MVS JSON Related