Fix contains search on multi-user column.

packages/backend-core/src/sql/sql.ts

@@ -246,7 +246,11 @@ class InternalBuilder {
         return `[${value.join(",")}]`
       }
       if (this.client === SqlClient.POSTGRES) {
-        iterate(mode, (key: string, value: Array<any>) => {
+        iterate(mode, (key: string, value: any) => {
+          if (!Array.isArray(value)) {
+            value = [value]
+          }
+
           const wrap = any ? "" : "'"
           const op = any ? "\\?| array" : "@>"
           const fieldNames = key.split(/\./g)
@@ -261,7 +265,11 @@ class InternalBuilder {
         })
       } else if (this.client === SqlClient.MY_SQL) {
         const jsonFnc = any ? "JSON_OVERLAPS" : "JSON_CONTAINS"
-        iterate(mode, (key: string, value: Array<any>) => {
+        iterate(mode, (key: string, value: any) => {
+          if (!Array.isArray(value)) {
+            value = [value]
+          }
+
           query = query[rawFnc](
             `${not}COALESCE(${jsonFnc}(${key}, '${stringifyArray(
               value
@@ -270,7 +278,11 @@ class InternalBuilder {
         })
       } else {
         const andOr = mode === filters?.containsAny ? " OR " : " AND "
-        iterate(mode, (key: string, value: Array<any>) => {
+        iterate(mode, (key: string, value: any) => {
+          if (!Array.isArray(value)) {
+            value = [value]
+          }
+
           let statement = ""
           for (let i in value) {
             if (typeof value[i] === "string") {

packages/server/src/api/routes/tests/search.spec.ts

@@ -1938,6 +1938,15 @@ describe.each([
         ])
       })
 
+      it("successfully finds a row searching with a string", async () => {
+        await expectQuery({
+          contains: { "1:users": user1._id },
+        }).toContainExactly([
+          { users: [{ _id: user1._id }] },
+          { users: [{ _id: user1._id }, { _id: user2._id }] },
+        ])
+      })
+
       it("fails to find nonexistent row", async () => {
         await expectQuery({ contains: { users: ["us_none"] } }).toFindNothing()
       })

packages/types/src/sdk/search.ts

@@ -54,7 +54,7 @@ export interface SearchFilters {
     [key: string]: any[]
   }
   [SearchFilterOperator.CONTAINS]?: {
-    [key: string]: any[]
+    [key: string]: any[] | any
   }
   [SearchFilterOperator.NOT_CONTAINS]?: {
     [key: string]: any[]