How $set events works together?

[Vaghawan Ojha]

Hi, 

It's quite a novice question, but I was curious how $set events are handled by the engine. 

For say I've a user1 buying item2 from the category fruits. 

so the event without $set would look like this: 

{"eventTime":"2016-04-01T00:03:16+05:41","entityType":"user","targetEntityType":"item","event":"purchase","entityId":"user5","targetEntityId":"apple","properties":{"category":"fruits"}}

But if I use $set, that would be something like this: 

{ "event" : "$set", "entityType" : "item", "entityId" : "apple", "properties" : { "category": ["fruits"] }, "eventTime" : "2016-04-01T00:03:16+05:41" }

So here I can't place the user, I think I'm wrong about how to implement $set events, in this case how the engine knows that the item was bought by  the user5 at that particular time? 

Am I supposed to send two events, one with user5 bought apple, and another $set event with category fruits? 

Someday who have already used this feature could let me know? 

Thanks

[Marius Rabenarivo]

Hi Vaghawan,

yes, you have to send two events : one for the purchase and one for the $set property.

[Vaghawan Ojha]

Hi Marius, 

Thank you very much for the quick reply. That helps, thank you. 

[Pat Ferrel]

Correct. The purchase is associated with the user so any properties would be attached to user objects and for the UR there are no user objects in the EventStore. Users are represented by the collection of their events, not properties.

On May 3, 2017, at 10:47 PM, Vaghawan Ojha <vagha...@gmail.com> wrote:

Hi Marius, 

Thank you very much for the quick reply. That helps, thank you. 

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[Vaghawan Ojha]

Hi Pat,

Ok, thanks for the addition, I got the point. 

Thanks

On Thu, May 4, 2017 at 9:41 PM, Pat Ferrel <p...@occamsmachete.com> wrote:

Correct. The purchase is associated with the user so any properties would be attached to user objects and for the UR there are no user objects in the EventStore. Users are represented by the collection of their events, not properties.

On May 3, 2017, at 10:47 PM, Vaghawan Ojha <vagha...@gmail.com> wrote:

Hi Marius, 

Thank you very much for the quick reply. That helps, thank you. 

On Thu, May 4, 2017 at 11:23 AM, Marius Rabenarivo <mariusrabenarivo@gmail.com> wrote:

Hi Vaghawan,

yes, you have to send two events : one for the purchase and one for the $set property.

2017-05-04 9:25 GMT+04:00 Vaghawan Ojha <vagha...@gmail.com>:

Hi, 

It's quite a novice question, but I was curious how $set events are handled by the engine. 

For say I've a user1 buying item2 from the category fruits. 

so the event without $set would look like this: 

{"eventTime":"2016-04-01T00:03:16+05:41","entityType":"user","targetEntityType":"item","event":"purchase","entityId":"user5","targetEntityId":"apple","properties":{"category":"fruits"}}

But if I use $set, that would be something like this: 

{ "event" : "$set", "entityType" : "item", "entityId" : "apple", "properties" : { "category": ["fruits"] }, "eventTime" : "2016-04-01T00:03:16+05:41" }

So here I can't place the user, I think I'm wrong about how to implement $set events, in this case how the engine knows that the item was bought by  the user5 at that particular time? 

Am I supposed to send two events, one with user5 bought apple, and another $set event with category fruits? 

Someday who have already used this feature could let me know? 

Thanks

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[Pat Ferrel]

I’m sure you did, I sometimes magnify so other readers will get it too :-)

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