You're getting close! You're going to have to implement get_aggregate(), as well as get_scalar().
The xtypes framework has no way of taking the calculation for get_scalar() and using it to calculate an aggregate. You're going to have to do it. The good news is that once you've done it, then the framework can use that to calculate a series on its own. This is where we will find out how fast the calculation is. -tk On Fri, Jan 21, 2022 at 12:51 PM Seth Ratner <lordrat...@gmail.com> wrote: > 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 tke...@gmail.com 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 <se...@lordratner.com> >>> 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 <tke...@gmail.com> wrote: >>>> >>>>> On Thu, Jan 20, 2022 at 4:01 PM Seth Ratner <lordr...@gmail.com> >>>>> 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 >>>>> weewx-user+...@googlegroups.com. >>>>> 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 weewx-user+...@googlegroups.com. >>>> 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 weewx-user+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/cb666588-aced-461c-9171-9d48b89e85f5n%40googlegroups.com > <https://groups.google.com/d/msgid/weewx-user/cb666588-aced-461c-9171-9d48b89e85f5n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. 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