Add more info to cart

backend/src/api/migrations/0057_cartitem_search_cartitem_term.py

@@ -0,0 +1,23 @@
+# Generated by Django 5.2.7 on 2026-07-30 18:45
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('api', '0056_sitestatistic'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='cartitem',
+            name='search',
+            field=models.CharField(blank=True, null=True),
+        ),
+        migrations.AddField(
+            model_name='cartitem',
+            name='term',
+            field=models.CharField(blank=True, null=True),
+        ),
+    ]

backend/src/api/models.py

@@ -870,6 +870,12 @@ class CartItem(models.Model):
 
     series = models.ForeignKey(GEOSeries, on_delete=models.CASCADE)
     added_at = models.DateTimeField(null=True, blank=True)
+
+    # the user's query at the time of adding to the cart
+    search = models.CharField(null=True, blank=True)
+    # the ontology term that they selected at the time of adding to the cart
+    term = models.CharField(null=True, blank=True)
+
     cart = models.ForeignKey(
         "Cart", null=True, blank=True, on_delete=models.CASCADE, related_name="items"
     )

backend/src/api/serializers.py

@@ -315,12 +315,19 @@ class DatabaseStatsSerializer(serializers.Serializer):
 class CartItemSerializer(serializers.ModelSerializer):
     """Serializer for CartItem model."""
 
-    id = serializers.CharField(source="series.series_id", read_only=True)
+    id = serializers.CharField(source="series.gse", read_only=True)
+    search = serializers.CharField(read_only=True)
+    term = serializers.CharField(read_only=True)
     added = serializers.DateTimeField(source="added_at", read_only=True)
 
     class Meta:
         model = CartItem
-        fields = ["id", "added"]
+        fields = [
+            "id",
+            "search",
+            "term",
+            "added"
+        ]
 
 
 class CartSerializer(serializers.ModelSerializer):

backend/src/api/views.py

@@ -680,16 +680,19 @@ def create(self, request, *args, **kwargs):
         {
             "studies": [
                 {
-                "id": "GSE35357",
-                "added": "2025-12-12T11:21:35.895Z"
+                    "search": "Hepatocyte",
+                    "term": "CL:0000182",
+                    "added": "2026-07-30T18:46:33.885000Z"
                 },
                 {
-                "id": "GSE149008",
-                "added": "2025-12-12T11:21:36.627Z"
+                    "search": "Hepatocyte",
+                    "term": "CL:0000182",
+                    "added": "2026-07-30T18:46:34.551000Z"
                 },
                 {
-                "id": "GSE45968",
-                "added": "2025-12-12T11:21:37.293Z"
+                    "search": "Hepatocyte",
+                    "term": "CL:0000182",
+                    "added": "2026-07-30T18:46:35.153000Z"
                 }
             ],
             "name": "yowza"
@@ -705,79 +708,20 @@ def create(self, request, *args, **kwargs):
             # create CartItem objects for each series
             for series_data in series_list:
                 series_id = series_data["id"]
+                search = series_data.get("search")
+                term = series_data.get("term")
                 added_at = series_data.get("added")
                 try:
                     series = GEOSeries.objects.get(gse=series_id)
-                    CartItem.objects.create(series=series, added_at=added_at, cart=cart)
+                    CartItem.objects.create(
+                        series=series,
+                        search=search,
+                        term=term,
+                        added_at=added_at,
+                        cart=cart
+                    )
                 except GEOSeries.DoesNotExist:
                     continue  # skip invalid series ids
 
             serializer = self.get_serializer(cart)
             return Response(serializer.data, status=status.HTTP_201_CREATED)
-
-    # provide a /download action to download cart contents
-    @action(
-        detail=False,
-        methods=["post"],
-        url_path="download",
-        permission_classes=[AllowAny],
-    )
-    def download(self, request):
-        """
-        API endpoint for downloading cart contents.
-
-        Expects a JSON body with the following structure:
-        {
-            "ids": [
-                "GSE35357",
-                "GSE149008",
-                "GSE45968"
-            ]
-        }
-
-        Query parameters:
-        - type (optional): 'json' or 'csv' (default: 'json')
-        - filename (optional): desired filename (default: 'cart_download')
-        """
-        series_ids = request.data.get("ids", [])
-        download_type = request.query_params.get("type", "json")
-        filename = request.query_params.get("filename", "cart_download")
-
-        series_qs = GEOSeries.objects.filter(gse__in=series_ids)
-
-        if download_type == "json":
-            # prepare JSON response
-            data = {
-                "studies": [
-                    {
-                        "id": series.gse,
-                        "title": series.title,
-                        "summary": series.summary,
-                    }
-                    for series in series_qs
-                ]
-            }
-            response = Response(data, content_type="application/json")
-            response["Content-Disposition"] = f'attachment; filename="{filename}.json"'
-            return response
-
-        elif download_type == "csv":
-            # prepare CSV response
-            response = HttpResponse(content_type="text/csv; charset=utf-8")
-            response["Content-Disposition"] = f'attachment; filename="{filename}.csv"'
-
-            # Helps Excel correctly detect UTF-8
-            response.write("\ufeff")
-
-            writer = csv.writer(response)
-            writer.writerow(["GEOSeries ID", "Title", "Summary"])
-            for series in series_qs:
-                writer.writerow([series.gse, series.title, series.summary])
-
-            return response
-
-        else:
-            return Response(
-                {"error": "Unsupported download type"},
-                status=status.HTTP_400_BAD_REQUEST,
-            )

frontend/src/App.tsx

@@ -95,7 +95,7 @@ const routes = [
         },
       },
       {
-        path: "studies/:search?",
+        path: "studies/:term?",
         element: <Studies />,
       },
       {

frontend/src/api/api.ts

@@ -4,7 +4,6 @@ import analytics from "react-ga4";
 import z from "zod";
 import { api, request } from "@/api";
 import { cart, ontologies, samples, stats, studies } from "@/api/types";
-import { downloadBlob } from "@/util/download";
 
 /** get project wide stats */
 export const getStats = async () => {
@@ -24,20 +23,20 @@ export const ontologySearch = async (search: string) => {
 
 /** search for studies and get full details */
 export const studySearch = async ({
-  search = "",
+  term = "",
   ordering = "",
   offset = 0,
   limit = 100,
   facets = {} as Record<string, string[]>,
 }) => {
   const url = new URL(`${api}/study/search/`);
-  url.searchParams.set("query", search);
+  url.searchParams.set("query", term);
   url.searchParams.set("ordering", ordering);
   url.searchParams.set("offset", String(offset));
   url.searchParams.set("limit", String(limit));
   for (const [facet, values] of Object.entries(facets))
     for (const value of values) url.searchParams.append(facet, value);
-  analytics.event("study_search", { search, ordering, facets });
+  analytics.event("study_search", { term, ordering, facets });
   const data = await request(url, studies);
   return data;
 };
@@ -119,24 +118,3 @@ export const shareCart = async (shareCart: ShareCart) => {
   const data = await request(url, cart, options);
   return data;
 };
-
-/** download cart data */
-export const downloadCart = async (
-  ids: string[],
-  filename: string,
-  type: string,
-) => {
-  const url = new URL(`${api}/cart/download/`);
-  url.searchParams.set("type", type);
-  url.searchParams.set("filename", filename);
-  const options = {
-    method: "POST",
-    headers: { "Content-Type": "application/json" },
-    body: { ids },
-    parse: "blob",
-  } as const;
-  analytics.event("download_cart", { ids, filename, type });
-  const data = await request(url, z.instanceof(Blob), options);
-  if (type === "csv") downloadBlob(data, filename, "csv");
-  if (type === "json") downloadBlob(data, filename, "json");
-};

frontend/src/api/types.ts

@@ -101,6 +101,8 @@ export const cart = z.object({
     z.object({
       id: z.string(),
       added: z.string(),
+      search: z.string(),
+      term: z.string(),
     }),
   ),
 });