It looks like 0.12.1 isn’t actually released on hex yet. But please report back when you try a version with the fix!
axelson
Scenic Core Team
kminevskiy
Unfortunately, that didn’t help.
If I add <p><%= Enum.any?(@users) %></p> above the conditional, everything works as expected (first false is being rendered and then, once an event happens, it switches to true and the form inside the conditional is rendered).
So far, I’ve checked the following:
- The
renderfunction receives pre-computed value (it’s not calculating it on the fly). IO.inspect/1actually renders the list correctly.- HTML tags appear to be correct.
Let me know if there’s anything else I could try.
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axelson
Scenic Core Team
Hmm, in that case it seems like it would be worthwhile to provide a reproduction project and post an issue to the project.
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kminevskiy
kminevskiy
A quick update: it doesn’t look like I can reproduce this bug (?) on a new installation. I suppose it’s specific to my project and I’ll have to debug on my own. I’ll post the solution in this thread.
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carterbryden
I had a similar issue with conditional rendering with liveview. I posted an issue but I just haven’t had enough time to create a reproduction repo publically (client project). In my case it seemed like it might be related to a nested liveview inside a conditional in a liveview template. Still don’t have a fix for it, I just changed the way I was rendering things to work around needing the if statement. I’ll post here if I do figure it out.
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kminevskiy
Interesting. Do you know / remember if that was the behavior specific to a certain (earlier) release of LiveView? As I mentioned above, I haven’t had any issues with 0.10.0, but after upgrading to 0.11 (and then to 0.12.x) I encountered the aforementioned issue.
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PJUllrich
Author of Building Table Views with Phoenix LiveView
This might not help in this particular case, but I recently learned that a template gets rendered and send over the websocket connection every time the socket assigns are changed when it isn’t in the .leex format, so when it is a .eex file. Just changing all file formats to .leex reduced the websocket traffic by a lot! So, whenever you do <%= render "my_template.html", assigns %> inside a template, make sure that my_template is of the format .leex 
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