Add query for tagging multiple photos arbitrarily

src/photo/db/query.ts

@@ -243,6 +243,19 @@ export const renamePhotoTagGlobally = (tag: string, updatedTag: string) =>
     WHERE ${tag}=ANY(tags)
   `, 'renamePhotoTagGlobally');
 
+export const addTagsToPhotos = (tags: string[], photoIds: string[]) =>
+  safelyQueryPhotos(() => sql`
+    UPDATE photos 
+    SET tags = (
+      SELECT array_agg(DISTINCT elem)
+      FROM unnest(
+        array_cat(tags, ARRAY${convertArrayToPostgresString(tags, 'brackets')})
+      ) AS elem
+    )
+    WHERE id IN ${convertArrayToPostgresString(photoIds, 'brackets')}
+    LIMIT ${photoIds.length}
+  `, 'addTagsToPhotos');
+
 export const deletePhoto = (id: string) =>
   safelyQueryPhotos(() => sql`
     DELETE FROM photos WHERE id=${id}

src/services/postgres.ts

@@ -41,8 +41,13 @@ export const sql = <T extends QueryResultRow>(
   return query<T>(result, values);
 };
 
-export const convertArrayToPostgresString = (array?: string[]) => array
-  ? `{${array.join(',')}}`
+export const convertArrayToPostgresString = (
+  array?: string[],
+  type: 'braces' | 'brackets' = 'braces', 
+) => array
+  ? type === 'braces'
+    ? `{${array.join(',')}}`
+    : `[${array.map(i => `'${i}'`).join(',')}]`
   : null;
 
 const isTemplateStringsArray = (