lift / lift/framework

Nesting Comet inside LazyLoad which is itself inside a Comet Actor doesn't work

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Dominant language
Scala
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Description

**[Mailing List thread](https://groups.google.com/forum/#!topic/liftweb/zH_rKQVbSVQ)**

**[Example page in a wider project - you know how to find the Scala code](https://github.com/gravelld/lift-duplicate-renders/blob/master/src/main/webapp/lazyload-comet.html).**

I have a Comet Actor which uses `LazyLoad.render` programmatically to lazy load part of its display. When the lazy loading is complete the rendered NodeSeq contains further Comet Actors. These display initially, however no further updates occur - rerendering of the nested Comet Actors are not passed to the page.

#### Workaround
Create your own `MyLazyLoad` Actor and, if required programmatically, initialise it as so:

```
S.findOrCreateComet("MyLazyLoad", Full(Helpers.nextFuncName), ns, S.attrsFlattenToMap, true).map { foundComet =>
foundComet ! MyLazyLoad.Init(initData)
Comet.containerForCometActor(foundComet, Full(ns))
} match {
case Full(cometContainer) => cometContainer
case failedResult => throw new IllegalArgumentException(s"$failedResult")
}
```

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the mailing-list thread and the example page at src/main/webapp/lazyload-comet.html, then trace the programmatic LazyLoad.render call and nested Comet Actor rendering. Compare this behavior with the provided MyLazyLoad workaround. Done means Comet Actors rendered inside LazyLoad continue receiving updates when nested in another Comet Actor.

Written by the indexing model from the issue text.

Assessment

Tech stack
scala
Domain
backend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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