Getting Closer, but still getting errors.
I can now see the result in the archive loop (gets sent over MQTT). But
with the seasons skin attempts to make a chart with it, I get:
Jan 21 14:40:39 Ratner-Orchard weewx[3122] ERROR weewx.reportengine: Caught
unrecoverable exception in generator 'weewx.imagegenerator.ImageGenerator'
Jan 21 14:40:39 Ratner-Orchard weewx[3122] ERROR weewx.reportengine:
**** chillHours
Jan 21 14:40:39 Ratner-Orchard weewx[3122] ERROR weewx.reportengine:
**** Traceback (most recent call last):
Jan 21 14:40:39 Ratner-Orchard weewx[3122] ERROR weewx.reportengine:
**** File "/usr/share/weewx/weewx/reportengine.py", line 196, in run
Jan 21 14:40:39 Ratner-Orchard weewx[3122] ERROR weewx.reportengine:
**** obj.start()
Jan 21 14:40:39 Ratner-Orchard weewx[3122] ERROR weewx.reportengine:
**** File "/usr/share/weewx/weewx/reportengine.py", line 281, in start
Jan 21 14:40:39 Ratner-Orchard weewx[3122] ERROR weewx.reportengine:
**** self.run()
Jan 21 14:40:39 Ratner-Orchard weewx[3122] ERROR weewx.reportengine:
**** File "/usr/share/weewx/weewx/imagegenerator.py", line 41, in run
Jan 21 14:40:39 Ratner-Orchard weewx[3122] ERROR weewx.reportengine:
**** self.genImages(self.gen_ts)
Jan 21 14:40:39 Ratner-Orchard weewx[3122] ERROR weewx.reportengine:
**** File "/usr/share/weewx/weewx/imagegenerator.py", line 177, in
genImages
Jan 21 14:40:39 Ratner-Orchard weewx[3122] ERROR weewx.reportengine:
**** start_vec_t, stop_vec_t ,data_vec_t =
weewx.xtypes.get_series(var_type,
Jan 21 14:40:39 Ratner-Orchard weewx[3122] ERROR weewx.reportengine:
**** File "/usr/share/weewx/weewx/xtypes.py", line 94, in get_series
Jan 21 14:40:39 Ratner-Orchard weewx[3122] ERROR weewx.reportengine:
**** raise weewx.UnknownType(obs_type)
Jan 21 14:40:39 Ratner-Orchard weewx[3122] ERROR weewx.reportengine:
**** weewx.UnknownType: chillHours
Jan 21 14:40:39 Ratner-Orchard weewx[3122] ERROR weewx.reportengine:
**** Generator terminated
Here's the block I added in skin.conf
[[[yearchill]]]
plot_type = bar
[[[[chillHours]]]]
aggregate_type = cumulative
aggregate_interval = day
On Friday, January 21, 2022 at 2:14:11 PM UTC-6 Seth Ratner wrote:
> I'm close, I think, except now I'm getting this every loop or report
> generation.
>
> DEBUG weewx.wxservices: Unknown extensible type 'chillHours'
>
> There are a couple things I'm unsure of that might be causing this
>
> - I used the group type group_elapsed because it seemed like the best fit
> - The last line of the python file, modeled after the VaporPressure.py
> example, is not part of either class, so I'm not sure what runs it.
>
> Here's the code:
> https://github.com/lordratner/weewx_chillHours/blob/main/chill_hours.py
>
> It's been added to weewx.conf engine section in xtypes, and I've confirmed
> the service is loading.
>
> Thoughts?
>
>
> On Thursday, January 20, 2022 at 8:26:59 PM UTC-6 [email protected] wrote:
>
>> I'd try it as a pure xtype first, and see what kind of performance I got.
>> If it's slow, put it in the database.
>>
>> You can query the database directly, but the advantage of using xtypes
>> system to do your queries is that it can automatically optimize whether or
>> not to use the daily summaries.
>>
>> There's a brief section
>> <https://github.com/weewx/weewx/wiki/WeeWX-V4-user-defined-types#xtypes-api>
>> in the wiki about the API. It's pretty self-explanatory, except about where
>> db_manager comes from. That's an instance of
>> weewx.manager.DaySummaryManager. Look in weewx/manager.py for how to create
>> one. There are some convenient static methods for doing so.
>>
>> On Thu, Jan 20, 2022 at 6:15 PM Seth Ratner <[email protected]> wrote:
>>
>>> Thanks Tom
>>>
>>> Final questions for the night, I promise 🤣😂
>>>
>>> Would you put this one the database, or just let WeeWx calculate it
>>> using the xtype each time?
>>>
>>> Second, is there an API or interface or whatever where another
>>> application can query WeeWX for some sort of weather data? In this case,
>>> I'd like my irrigation software to query WeeWX for the ET, total rain, and
>>> chill hours of a given time frame.
>>>
>>> Or do I just have to read the database directly?
>>>
>>>
>>>
>>> On Thu, Jan 20, 2022, 19:15 Tom Keffer <[email protected]> wrote:
>>>
>>>> On Thu, Jan 20, 2022 at 4:01 PM Seth Ratner <[email protected]> wrote:
>>>>
>>>>> Would you add the step from the xType guide of adding chillHours to
>>>>> [StdWXCalculate] [[Calculations]]? Or would the "synthetic type" concept
>>>>> mean it only exists when it is called on.
>>>>>
>>>>> As I understand it, adding it to [StdWXCalculate] [[Calculations]]
>>>>> would add chillHours to the loop, but it would not be in the archive
>>>>> unless
>>>>> I also added a column for it with the same type name.
>>>>>
>>>>
>>>> It doesn't hurt to add to StdWXCalculate, but it's really only
>>>> necessary if you want to add the results to the database. And, yes,
>>>> it will only get added to the database if there's a matching column in the
>>>> schema.
>>>>
>>>>>
>>>>> So on my Belchertown skin, where I want total Chill Hours from Oct -
>>>>> May displayed, if I add it to the archive WeeWX will use the database to
>>>>> calculate the total (just adding them together), whereas if I don't add
>>>>> it
>>>>> to the archive, WeeWX will have to run the (if outTemp < 45 then
>>>>> chillHours
>>>>> = archive_interval) for every archive row in that timespan, then sum that?
>>>>>
>>>>
>>>> Maybe. For the ImageGenerator that comes with WeeWX, if a type is not
>>>> available in the database, it will try to calculate it "on the fly" using
>>>> xtypes. However, I have no idea what the Belchertown skin does. I kind of
>>>> doubt it leverages xtypes.
>>>> -tk
>>>>
>>>> --
>>>> You received this message because you are subscribed to a topic in the
>>>> Google Groups "weewx-user" group.
>>>> To unsubscribe from this topic, visit
>>>> https://groups.google.com/d/topic/weewx-user/7ysYvSUMOOo/unsubscribe.
>>>> To unsubscribe from this group and all its topics, send an email to
>>>> [email protected].
>>>> To view this discussion on the web visit
>>>> https://groups.google.com/d/msgid/weewx-user/CAPq0zEAdDBGTow7i55XfnGPzncQjdmiH%2BSk%3DL9_ZoE85QXKO%3Dw%40mail.gmail.com
>>>>
>>>> <https://groups.google.com/d/msgid/weewx-user/CAPq0zEAdDBGTow7i55XfnGPzncQjdmiH%2BSk%3DL9_ZoE85QXKO%3Dw%40mail.gmail.com?utm_medium=email&utm_source=footer>
>>>> .
>>>>
>>> --
>>>
>> You received this message because you are subscribed to the Google Groups
>>> "weewx-user" group.
>>>
>> To unsubscribe from this group and stop receiving emails from it, send an
>>> email to [email protected].
>>> To view this discussion on the web visit
>>> https://groups.google.com/d/msgid/weewx-user/CAHTssjOF_Q65XveoboAwRV%2Br5-oNb8curD7LZTTmuD7Y0-EAjQ%40mail.gmail.com
>>>
>>> <https://groups.google.com/d/msgid/weewx-user/CAHTssjOF_Q65XveoboAwRV%2Br5-oNb8curD7LZTTmuD7Y0-EAjQ%40mail.gmail.com?utm_medium=email&utm_source=footer>
>>> .
>>>
>>
--
You received this message because you are subscribed to the Google Groups
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/weewx-user/cb666588-aced-461c-9171-9d48b89e85f5n%40googlegroups.com.
