Error while making rpc call

[hkasera]

Hello,

I am receiving this below error while making a rpc call -
Server-side code uses client-side-only identifier "Basis.mouseEvent"

Basically I am reading values from database and listing into a table. In each table row, there is a button which will make a rpc call with parameter as one of column value returned from the database.

rows <- queryX (SELECT * FROM peers WHERE)
		            (fn row => <xml><tr>
		            	<td>{[row.Peers.C]}</td>
		             	<td>
		            		<button value="Update" onclick={fn _ => n <- rpc (increment row.Peers.C); set src n}/>
		             	</td>
		            </tr></xml>);

row.Peers.C is a string column.

I am unable to comprehend the error. Any insights into this would be helpful.

[achlipala]

Can you share a self-contained example, ideally in a single .ur file, so I can try compiling?

[hkasera]

Here it is -
https://gist.github.com/hkasera/5d2005368e385cf2c95b200aa71b6fbd

[hkasera]

Can I please get an update on this?

[achlipala-biz]

Sorry, I'm busy and can't promise when I'll look into it.

[hkasera]

Hello,

We got a reply on the mailing list that -

Changing the onclick handler to avoid capturing
row.Peers.A - i.e., I changed your SELECT statement to

SELECT Peers.C FROM peers WHERE peers.A > {[me]} OR peers.A < {[me]}

and it compiled.

This is definitely a case of a bad error message, but there may be more
in play here. It sounds like the compiler is trying to evaluate the body
of the onclick handler on the server instead of on the client, which
seems wrong to me. This may also be related to Ur/Web's apparent
inability to handle client IDs on the client side [1]. In any case,
though, if anybody else has experienced issues like this, please speak
up.

It would be great when you have time, to help us understand this.

Regards,
Harshita Kasera

[achlipala]

I think Benjamin's diagnosis on the mailing list is pretty good. I'll follow up there now.