Show parent > child location on detail pages, add location move

- Device/component detail pages show "Parent › Child" for locations
- Device list cards show full location path
- Location edit form now includes a Parent selector to move locations
  between parents or make them top-level
- Prevents setting a location as its own parent

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/routes/(app)/components/[id]/+page.server.ts

@@ -22,6 +22,7 @@ export const load: PageServerLoad = async ({ params }) => {
 			deviceTitle: devices.title,
 			locationId: components.locationId,
 			locationName: locations.name,
+			locationParentId: locations.parentId,
 			createdAt: components.createdAt,
 			updatedAt: components.updatedAt
 		})
@@ -32,6 +33,15 @@ export const load: PageServerLoad = async ({ params }) => {
 
 	if (!component) error(404, 'Component not found');
 
+	let parentLocationName: string | null = null;
+	if (component.locationParentId) {
+		const [parent] = await db
+			.select({ name: locations.name })
+			.from(locations)
+			.where(eq(locations.id, component.locationParentId));
+		parentLocationName = parent?.name ?? null;
+	}
+
 	const images = await db
 		.select()
 		.from(componentImages)
@@ -57,7 +67,7 @@ export const load: PageServerLoad = async ({ params }) => {
 		.where(eq(installationLog.componentId, params.id))
 		.orderBy(desc(installationLog.performedAt));
 
-	return { component, images, documents, history };
+	return { component, parentLocationName, images, documents, history };
 };
 
 export const actions: Actions = {

src/routes/(app)/components/[id]/+page.svelte

@@ -68,7 +68,7 @@
 						<a href="/devices/{c.currentDeviceId}" class="font-medium text-blue-600 hover:text-blue-700 dark:text-blue-400">{c.deviceTitle}</a>
 					</p>
 				{:else if c.locationName}
-					<p class="text-sm text-gray-700 dark:text-gray-300">In storage at <span class="font-medium">{c.locationName}</span></p>
+					<p class="text-sm text-gray-700 dark:text-gray-300">In storage at <span class="font-medium">{#if data.parentLocationName}{data.parentLocationName} &rsaquo; {/if}{c.locationName}</span></p>
 				{:else}
 					<p class="text-sm text-gray-500 dark:text-gray-400">In storage (no location set)</p>
 				{/if}

src/routes/(app)/devices/+page.server.ts

@@ -47,7 +47,8 @@ export const load: PageServerLoad = async ({ url }) => {
 			model: devices.model,
 			condition: devices.condition,
 			year: devices.year,
-			locationName: locations.name
+			locationName: locations.name,
+			locationParentId: locations.parentId
 		})
 		.from(devices)
 		.leftJoin(locations, eq(devices.locationId, locations.id))
@@ -56,6 +57,17 @@ export const load: PageServerLoad = async ({ url }) => {
 		.limit(pageSize)
 		.offset((page - 1) * pageSize);
 
+	// Resolve parent location names
+	const parentIds = [...new Set(deviceList.filter(d => d.locationParentId).map(d => d.locationParentId!))];
+	let parentNameMap: Record<string, string> = {};
+	if (parentIds.length > 0) {
+		const parents = await db
+			.select({ id: locations.id, name: locations.name })
+			.from(locations)
+			.where(sql`${locations.id} IN ${parentIds}`);
+		for (const p of parents) parentNameMap[p.id] = p.name;
+	}
+
 	// Fetch first image for each device
 	const deviceIds = deviceList.map((d) => d.id);
 	let imageMap: Record<string, string> = {};
@@ -80,7 +92,12 @@ export const load: PageServerLoad = async ({ url }) => {
 	return {
 		devices: deviceList.map((d) => ({
 			...d,
-			thumbnail: imageMap[d.id] ?? null
+			thumbnail: imageMap[d.id] ?? null,
+			fullLocation: d.locationName
+				? (d.locationParentId && parentNameMap[d.locationParentId]
+					? `${parentNameMap[d.locationParentId]} › ${d.locationName}`
+					: d.locationName)
+				: null
 		})),
 		total,
 		page,

src/routes/(app)/devices/+page.svelte

@@ -117,8 +117,8 @@
 								<span class="text-xs text-gray-400 dark:text-gray-500">{device.year}</span>
 							{/if}
 						</div>
-						{#if device.locationName}
-							<p class="mt-1 text-xs text-gray-400 dark:text-gray-500">{device.locationName}</p>
+						{#if device.fullLocation}
+							<p class="mt-1 text-xs text-gray-400 dark:text-gray-500">{device.fullLocation}</p>
 						{/if}
 					</div>
 				</a>

src/routes/(app)/devices/[id]/+page.server.ts

@@ -38,6 +38,7 @@ export const load: PageServerLoad = async ({ params }) => {
 			generalNotes: devices.generalNotes,
 			locationId: devices.locationId,
 			locationName: locations.name,
+			locationParentId: locations.parentId,
 			disabled: devices.disabled,
 			createdAt: devices.createdAt,
 			updatedAt: devices.updatedAt
@@ -49,6 +50,16 @@ export const load: PageServerLoad = async ({ params }) => {
 	if (!device) error(404, 'Device not found');
 	if (device.disabled) error(404, 'Device not found');
 
+	// Resolve parent location name
+	let parentLocationName: string | null = null;
+	if (device.locationParentId) {
+		const [parent] = await db
+			.select({ name: locations.name })
+			.from(locations)
+			.where(eq(locations.id, device.locationParentId));
+		parentLocationName = parent?.name ?? null;
+	}
+
 	// Computer details
 	let compDetails = null;
 	if (device.category === 'Computer') {
@@ -138,6 +149,7 @@ export const load: PageServerLoad = async ({ params }) => {
 
 	return {
 		device,
+		parentLocationName,
 		computerDetails: compDetails,
 		images,
 		documents,

src/routes/(app)/devices/[id]/+page.svelte

@@ -544,7 +544,9 @@
 					{#if data.device.locationName}
 						<div>
 							<dt class="text-gray-500 dark:text-gray-400">Location</dt>
-							<dd class="text-gray-900 dark:text-white">{data.device.locationName}</dd>
+							<dd class="text-gray-900 dark:text-white">
+								{#if data.parentLocationName}{data.parentLocationName} &rsaquo; {/if}{data.device.locationName}
+							</dd>
 						</div>
 					{/if}
 					<div>

src/routes/(app)/locations/+page.server.ts

@@ -73,11 +73,15 @@ export const actions: Actions = {
 		const id = formData.get('id') as string;
 		const name = (formData.get('name') as string)?.trim();
 		const description = (formData.get('description') as string)?.trim();
+		const parentId = (formData.get('parentId') as string) || null;
 		if (!name) return fail(400, { error: 'Name is required' });
 
+		// Prevent setting self as parent
+		if (parentId === id) return fail(400, { error: 'Cannot set location as its own parent' });
+
 		await db
 			.update(locations)
-			.set({ name, description: description || null, updatedAt: new Date() })
+			.set({ name, description: description || null, parentId, updatedAt: new Date() })
 			.where(eq(locations.id, id));
 		return { renamed: true };
 	},

src/routes/(app)/locations/+page.svelte

@@ -102,6 +102,18 @@
 								<input type="text" id="desc-{loc.id}" name="description" value={loc.description ?? ''}
 									class="w-full rounded-md border border-gray-300 px-3 py-1.5 text-sm focus:border-blue-500 focus:ring-1 focus:ring-blue-500 focus:outline-none dark:border-gray-600 dark:bg-gray-700 dark:text-white" />
 							</div>
+							<div>
+								<label for="parent-{loc.id}" class="mb-1 block text-xs text-gray-500 dark:text-gray-400">Parent</label>
+								<select id="parent-{loc.id}" name="parentId"
+									class="rounded-md border border-gray-300 px-3 py-1.5 text-sm dark:border-gray-600 dark:bg-gray-700 dark:text-white">
+									<option value="">None (top level)</option>
+									{#each sortedLocations as other}
+										{#if other.id !== loc.id}
+											<option value={other.id} selected={other.id === loc.parentId}>{'—'.repeat(other.depth)} {other.name}</option>
+										{/if}
+									{/each}
+								</select>
+							</div>
 							<button type="submit" class="rounded-md bg-blue-600 px-3 py-1.5 text-sm font-medium text-white hover:bg-blue-700">Save</button>
 							<button type="button" onclick={() => (editingId = null)} class="rounded-md px-3 py-1.5 text-sm text-gray-600 hover:bg-gray-100 dark:text-gray-400 dark:hover:bg-gray-700">Cancel</button>
 						</form>