support view logic on HTML side

apps/core/api.py

@@ -3,7 +3,7 @@ from ninja import Schema
 from ninja.security import APIKeyQuery
 import datetime
 from ..accounts.models import User
-from .models import ThingEdit, Thing as ThingModel
+from .models import ThingEdit, Thing as ThingModel, View as ViewModel
 
 
 class ApiKey(APIKeyQuery):
@@ -21,12 +21,31 @@ class ApiKey(APIKeyQuery):
 api = NinjaAPI(auth=ApiKey())
 
 
+class View(Schema):
+    name: str
+    columns: dict
+    filters: dict
+    sort: str
+
+
 class Thing(Schema):
     id: int
     data: dict
     type: str
 
 
+@api.post("/view/")
+def sync_view(request, view: View):
+    ViewModel.objects.update_or_create(
+        name=view.name,
+        defaults=dict(
+            columns=view.columns,
+            filters=view.filters,
+            sort=view.sort,
+        ),
+    )
+
+
 @api.post("/thing/")
 def sync_thing(request, thing: Thing):
     action = "none"

apps/core/migrations/0004_view_alter_thing_deleted.py

@@ -0,0 +1,32 @@
+# Generated by Django 5.2 on 2025-05-04 02:50
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("core", "0003_alter_thing_created_at"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="View",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True, primary_key=True, serialize=False, verbose_name="ID"
+                    ),
+                ),
+                ("name", models.CharField(max_length=100)),
+                ("columns", models.JSONField()),
+                ("filters", models.JSONField()),
+                ("sort", models.CharField()),
+            ],
+        ),
+        migrations.AlterField(
+            model_name="thing",
+            name="deleted",
+            field=models.BooleanField(default=False),
+        ),
+    ]

apps/core/models.py

@@ -2,6 +2,13 @@ from django.db import models
 from ..accounts.models import User
 
 
+class View(models.Model):
+    name = models.CharField(max_length=100)
+    columns = models.JSONField()
+    filters = models.JSONField()
+    sort = models.CharField()
+
+
 class Thing(models.Model):
     thing_id = models.PositiveIntegerField()
     user = models.ForeignKey(User, related_name="things", on_delete=models.CASCADE)

apps/core/views.py

@@ -1,3 +1,39 @@
 from django.shortcuts import render
+from ..accounts.models import User
+from .models import Thing, View
 
-# Create your views here.
+
+def attr_then_dict(thing, field):
+    try:
+        return getattr(thing, field)
+    except AttributeError:
+        return thing.data.get(field, "")
+
+
+def thing_to_row(view, thing):
+    """convert one thing to corresponding row dict"""
+    return [attr_then_dict(thing, col["field_name"]) for col in view.columns.values()]
+
+
+def table(request):
+    token = request.GET.get("token")
+    view_name = request.GET.get("view")
+    user = User.objects.get(username=token)
+    view = View.objects.get(name=view_name)
+    things = Thing.objects.filter(user=user, deleted=False)
+    for field, val in view.filters.items():
+        if field == "type":
+            things = things.filter(type=val)
+        else:
+            val = val.split(",")
+            if len(val) == 1:
+                things = things.filter(**{f"data__{field}": val})
+            else:
+                things = things.filter(**{f"data__{field}__in": val})
+
+    things = things.order_by(*[f"data__{sort}" for sort in view.sort.split(",")])
+
+    # execute query
+    rows = (thing_to_row(view, thing) for thing in things)
+
+    return render(request, "thingtable.html", {"rows": rows, "view": view})

config/urls.py

@@ -3,11 +3,13 @@ from django.contrib import admin
 from django.urls import path, include
 from debug_toolbar.toolbar import debug_toolbar_urls
 from apps.core.api import api
+from apps.core import views
 
 urlpatterns = [
     path("djadmin/", admin.site.urls),
     path("accounts/", include("allauth.urls")),
     path("api/", api.urls),
+    path("table/", views.table),
 ]
 
 if settings.DEBUG and not settings.IS_TESTING:

templates/thingtable.html

@@ -0,0 +1,20 @@
+<table>
+<thead>
+<tr>
+{% for col in view.columns %}
+  <th>{{ col }}</th>
+{% endfor %}
+</tr>
+</thead>
+<tbody>
+{% for row in rows %}
+<tr>
+  {% for item in row %}
+  <td>
+    {{ item }}
+  </td>
+  {% endfor %}
+</tr>
+{% endfor %}
+</tbody>
+</table>