implement sparse fields for relationships, add more tests

Author: sw34

packages/server/src/api/rest/index.ts

@@ -585,7 +585,14 @@ class RequestHandler extends APIHandlerBase {
             select = relationSelect;
         }
 
-        select = select ?? { [relationship]: true };
+        // handle partial results for requested type
+        if (!select) {
+            const { select: partialFields, error } = this.buildPartialSelect(lowerCaseFirst(relationInfo.type), query);
+            if (error) return error;
+
+            select = partialFields ? { [relationship]: { select: { ...partialFields } } } : { [relationship]: true };
+        }
+
         const args: any = {
             where: this.makePrismaIdFilter(typeInfo.idFields, resourceId),
             select,
@@ -772,8 +779,6 @@ class RequestHandler extends APIHandlerBase {
         } else {
             args.take = limit;
 
-            console.log('args', JSON.stringify(args));
-
             const [entities, count] = await Promise.all([
                 prisma[type].findMany(args),
                 prisma[type].count({ where: args.where ?? {} }),
@@ -1905,8 +1910,6 @@ class RequestHandler extends APIHandlerBase {
             }
         }
 
-        console.log('relation select:', JSON.stringify({ select: result, error: undefined, allIncludes }));
-
         return { select: result, error: undefined, allIncludes };
     }