fix(server-rest): filters at different hierarchies are not properly combined (#2054)

Author: ymc9

Diff for: packages/server/src/api/rest/index.ts

@@ -1528,7 +1528,6 @@ class RequestHandler extends APIHandlerBase {
         }
 
         const items: any[] = [];
-        let currType = typeInfo;
 
         for (const [key, value] of Object.entries(query)) {
             if (!value) {
@@ -1554,6 +1553,7 @@ class RequestHandler extends APIHandlerBase {
 
             const item: any = {};
             let curr = item;
+            let currType = typeInfo;
 
             for (const filterValue of enumerate(value)) {
                 for (let i = 0; i < filterKeys.length; i++) {

Diff for: packages/server/tests/api/rest.test.ts

@@ -633,6 +633,26 @@ describe('REST server tests', () => {
                         prisma,
                     });
                     expect(r.body.data).toHaveLength(0);
+                    r = await handler({
+                        method: 'get',
+                        path: '/post',
+                        query: {
+                            ['filter[author][email]']: 'user1@abc.com',
+                            ['filter[title]']: 'Post1',
+                        },
+                        prisma,
+                    });
+                    expect(r.body.data).toHaveLength(1);
+                    r = await handler({
+                        method: 'get',
+                        path: '/post',
+                        query: {
+                            ['filter[author][email]']: 'user1@abc.com',
+                            ['filter[title]']: 'Post2',
+                        },
+                        prisma,
+                    });
+                    expect(r.body.data).toHaveLength(0);
 
                     // to-one relation filter
                     r = await handler({