How to perform relational queries with Pointers?

[cetorres]

I have a class Customer that has a property user. That's a Pointer to User. How can I perform a query that does this where?

where={"user":{"__type":"Pointer","className":"_User","objectId":"8TOXdXf3tz"}}

[phillwiggins]

Add .included next(ParseUser) to your search.

…

On Mon, Jan 21, 2019, 21:49 Carlos Eugenio Torres ***@***.*** wrote: I have a class Customer that has a property user. That's a Pointer to User. How can I perform a query that does this where? where={"user":{"__type":"Pointer","className":"_User","objectId":"8TOXdXf3tz"}} — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#51>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AHgn3pB0pez6okkDOrrLDtsdkOAW8Owrks5vFjXmgaJpZM4aLk8P> .

[cetorres]

Can you give an example, please?

[phillwiggins]

There is an example in the example app. Main.dart

…

On Mon, Jan 21, 2019, 22:05 Carlos Eugenio Torres ***@***.*** wrote: Can you give an example, please? — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#51 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AHgn3lxncX6pilvLmHHXGcFl-wqpm4wpks5vFjmSgaJpZM4aLk8P> .

[cetorres]

I saw that one: .includeObject(['Day']). But that just includes the Pointer data into the main query. But doesn't filter by the objectId, which is what I want.
There query is like, give me the customers from this user.

With this request I can achieve the query:

https://YOUR.PARSE-SERVER.HERE/parse/classes/Customer?where={"user":{"__type":"Pointer","className":"_User","objectId":"8TOXdXf3tz"}}

But how to do it with the QueryBuilder? Now I can only do with custom query from the ParseObject.

[phillwiggins]

Add whereEquals(objectId) to the query?

…

On Mon, Jan 21, 2019, 22:12 Carlos Eugenio Torres ***@***.*** wrote: I saw that one: .includeObject(['Day']). But that just includes the Pointer data into the main query. But doesn't filter by the objectId, which is what I want. There query is like, give me the customers from this user. With this request I can achieve the query: https://YOUR.PARSE-SERVER.HERE/parse/classes/Customer?where={"user":{"__type":"Pointer","className":"_User","objectId":"8TOXdXf3tz"}} But how to do it with the QueryBuilder? Now I can only do with custom query from the ParseObject. — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#51 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AHgn3tZCQodAedz-VgXaZAog5mm32TiUks5vFjtbgaJpZM4aLk8P> .

[cetorres]

No. It would be using whereEqualTo('user', user). Sending the user as a ParseUser doesn't work. I believe because Parse stores this user on Customer class as a Pointer to User. So it's a Pointer object. So the solution would be perform a subquery, as the REST API suggests, do a inQuery:

&where={"user":{"$inQuery":{"where":{"objectId":"${user.get('objectId')}"},"className":"_User"}}}

But I don't see any method to do find an object as a result of a query. On the regular Parse SDK for iOS and Android we can find it.

[phillwiggins]

Can you send me the section of the REST API you are referring too. I don't understand.

…

On Mon, Jan 21, 2019, 22:40 Carlos Eugenio Torres ***@***.*** wrote: No. It would be using whereEqualTo('user', user). Sending the user as a ParseUser doesn't work. I believe because Parse stores this user on Customer class as a Pointer to User. So it's a Pointer object. So the solution would be perform a subquery, as the REST API suggests, do a inQuery: &where={"user":{"$inQuery":{"where":{"objectId":"${user.get('objectId')}"},"className":"_User"}}} — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#51 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AHgn3t7F2ySJ768vrcuuyuRsqtSdRQx4ks5vFkHqgaJpZM4aLk8P> .

[cetorres]

https://docs.parseplatform.org/rest/guide/#relational-queries

[phillwiggins]

I see. This feature has not been added yet. It will be in the near future.

…

On Mon, Jan 21, 2019, 22:44 Carlos Eugenio Torres ***@***.*** wrote: https://docs.parseplatform.org/rest/guide/#relational-queries — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#51 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AHgn3pjjpAM9_OQNK6ozvV6vpedOEDRIks5vFkLMgaJpZM4aLk8P> .

[cetorres]

Ah ok, good to know. Thank you.

[RodrigoSMarques]

@cetorres
It's working. You can test with last release.

      var queryBuilder = QueryBuilder<ParseObject>(ParseObject('Product'))
        ..whereEqualTo("owner", user.toPointer());

[RodrigoSMarques]

@phillwiggins
this issue can be closed.

Resolved in the last release.

[cetorres]

Thank you, guys!

[RodrigoSMarques]

@cetorres
you are Brazilian?

[cetorres]

Yes, @RodrigoSMarques. You too?

[RodrigoSMarques]

Me too. I live in Vitória - ES.

Nice. I speak. I know a few Brazilians who use Parse.

[RodrigoSMarques]

@phillwiggins
Close this issue to keep open only what is in trouble.
Resolved in previous releases. It is inactive because it has not received any new comments.