[Building Sakai] get all chat messages for a channel

[Matthew Jones]

Yea you're right about that max. The entity has a defined max of 10, and
the service has a defined max of 100 (which is alterable via the property).

Increasing either of those limits "too high" could lead to performance
problems, though we usually increase them to be higher than 100. Like some
other tools, it's not exactly known what too high is.

I'm thinking that if the entitybroker interface for chat was ever written
to create a dump of all messages (Say a chat room had hypothetically a
million messages) it would have to run asynchronously and deliver the file
when it was done compiling the messages. This is would be another good use
case for a background processing service.



On Mon, Feb 25, 2013 at 11:17 AM, Zhen Qian <zqian at umich.edu> wrote:

> Thanks, Adrian.
>
> I found the default returned size if of 10 chat messages, so I have added
> the items param to get more
>
> http://localhost/direct/chat-message.json?channelId=CHANNEL_ID&items=N
>
> However, the return list seems to be limited to recent 100 (though claimed
> to be fixed in SAK-20928).
>
> - Zhen
>
>
> On Mon, Feb 25, 2013 at 11:08 AM, Adrian Fish <adrian.r.fish at gmail.com>wrote:
>
>> Hi Zhen,
>>
>> This gets the channel ids for a site ...
>>
>> http://localhost/direct/chat-channel.json?siteId=SITE_ID
>>
>> This gets your messages for a channel id thus returned ...
>>
>> http://localhost/direct/chat-message.json?channelId=CHANNEL_ID
>>
>> CHANNEL_ID is the id attribute that comes back from the first call.
>>
>> Cheers,
>> Adrian.
>>
>>
>> On 25 February 2013 15:49, Zhen Qian <zqian at umich.edu> wrote:
>>
>>> Hi, all:
>>>
>>> How can I get all the chat messages for a given channel, via the
>>> "/direct" RESTful url?
>>>
>>> I have tried
>>>
>>> https://{server_url}/direct/chat-message?channelId={channel_id}
>>>
>>> and
>>>
>>> https://{server_url}/direct/chat-channel/{channel_id}
>>>
>>> However, the first url returns 0 messages, and the latter returns the
>>> channel entity information.
>>>
>>> Thanks,
>>>
>>> - Zhen
>>>
>>>
>>>
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>
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