[Twisted-web] Athena DOM manipulation
Phil Mayers
p.mayers at imperial.ac.uk
Mon Sep 4 17:59:22 CDT 2006
Is it possible for an athena LivePage to add new LiveElements? To remove
them?
The application is a web-based database editor which due to operational
requirements has suddenly had a ballooning in the number of fields per
HTML page, and the round-tripping of the form submits plus rendering of
the extremely large HTML in one large block is actually now causing
operational difficulties.
Something like:
+-(main)-------------------+
| field1: ______ |
| field2: ______ |
| checkbox: [__] |
| |
+-(subitems)---------------+
| key | name | dom | |
+-----+------+-----+-------+
| | | | [del] | << this is a 3-textbox row for each subitem
+-----+------+-----+-------+
| [Add new subitem?] | << this is a
+--------------------------+
...with maybe ~60 and climbing rows of subitems. I can handle the
initial loading of the page taking a bit of time, but a user might want
to add, change or delete ~10-25 rows of subitems each time they visit
the page, and the round-tripping is genuinely detrimental.
Can you do something like returning a LiveElement from a callRemote? Or
can you somehow create (in a supported fashion) a server-side
LiveElement, return the ID/html/whatever from the callRemote'ed method,
and then run the client-side widget creation JavaScript, supplying the ID?
Is this just plain a bad idea? Should I somehow make the entire list of
subitems a single widget (less attractive, because the in-built client
and server-side demuxing of the LiveElement -> row is attractive)
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