Client-side Javascript cannot read the web server's file system due to security sandboxing. I can think of a few ways around that, but none is very satisfying.
1. Turn directory indexing on for the NOAA subdirectory. Then fetch the list of files, parse them, and display. This is probably the best of the alternative approaches. I didn't use this because it requires a user to modify his/her web server configuration. 2. Include some sort of manifest file, such as noaa.json. Retrieve that, parse, and display. Problem is that the manifest file has to be generated, so you're back to where you started. 3. Require a backend framework. You read the manifest from an endpoint. Again, this requires users to install infrastructure. The solution I came up with was the only one that required minimal user modifications. If I have missed an idea, I'd love to hear about it! -tk On Sat, Jul 25, 2026 at 8:20 AM 'Michael Waldor' via weewx-user < [email protected]> wrote: > Thanks for your quick reply. The NOAA files are stored within the HTML > area served by nginx, thus should be visible for a web browser. Only the > selection is not possible because the variables are set by CheetahGenerator > - as to be expected. > > Thus my best solution will be data migration. The author of the new > ecowitt driver even provides an sql script for that purpose. I'll give it a > try. > > Tom Keffer schrieb am Samstag, 25. Juli 2026 um 16:31:56 UTC+2: > >> Your question is not entirely clear to me, but what I think you're asking >> is how do you gain access to the file names from within the webpage. >> >> The answer is that you can't. Modern web browsers don't allow free access >> to the file system on the client, so you cannot search to see which files >> have been generated. >> >> Instead, the dropdown list that you see is created at file generation >> time. The Cheetah generator keeps track of all files that should be there >> and populates the list with that. >> >> If at all possible, you would be best off figuring out some way of >> migrating your old data to your new weewx.sdb file. Provided the data is >> still in the flat format used by the database, this should be possible. >> Have you tried using the "weectl database" utility for adding and removing >> columns? >> >> -tk >> >> On Sat, Jul 25, 2026 at 5:58 AM 'Michael Waldor' via weewx-user < >> [email protected]> wrote: >> >>> Both variables are used within Seasons skin titlebar.inc to populate the >>> month resp. year dropdown. Works fine. >>> >>> But now I've setup a new weatherstation with incompatible weewx.sdb DB >>> structure (ecowitt_http_driver). Thus I'm forced to start with an empty >>> weewx.sdb (because currently I want to avoid to migrate my old data). The >>> folder /var/www/html/weewx/NOAA still contains all old summaries, but >>> I can't access them from Seasons gui, probabely because $SummaryByYear and >>> $SummaryByMonth are initialized based on the current weewx.sdb. >>> >>> Is it possible to get access to the (existing) old NOAA files from >>> within Seasons titlebar.inc? As a final resort I might hardwire the list of >>> years within "my" titlebar.inc, but maybe there is a better solution? >>> >>> Regards, Michael >>> >>> -- >>> 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 visit >>> https://groups.google.com/d/msgid/weewx-user/37c7eed3-2bbd-4307-81af-ab61e6aca2efn%40googlegroups.com >>> <https://groups.google.com/d/msgid/weewx-user/37c7eed3-2bbd-4307-81af-ab61e6aca2efn%40googlegroups.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 visit > https://groups.google.com/d/msgid/weewx-user/925d0362-f899-4025-88b1-8fcdbb21fd65n%40googlegroups.com > <https://groups.google.com/d/msgid/weewx-user/925d0362-f899-4025-88b1-8fcdbb21fd65n%40googlegroups.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 visit https://groups.google.com/d/msgid/weewx-user/CAPq0zECtHa1xhmN0q29VVQKVTbjHzLNUMoS13mnmeBs5qE2bGA%40mail.gmail.com.
