With the help of gemini I could write a small Cheetah script to do what I
need - of course this is only a kind of workaround/proof of concept. But it
works:
<div id="reports">
#import os
#import fnmatch
#set $files = os.listdir('/var/www/html/weewx/NOAA')
#set $months = fnmatch.filter($files,
'NOAA-[0-9][0-9][0-9][0-9]-[0-9][0-9].txt')
#set $years = fnmatch.filter($files, 'NOAA-[0-9][0-9][0-9][0-9].txt')
$gettext("Monthly Reports"):
<select name="reports" onchange="openTabularFile(value)">
#for $month in $months
#set $monthYear = os.path.splitext($month)[0]
#set $monthYear = $monthYear[5:]
<option value="$monthYear">$monthYear</option>
#end for
<option selected>- $gettext("select month") -</option>
</select>
<br/>
$gettext("Yearly Reports"):
<select name="reports" onchange="openTabularFile(value)">
#for $year in $years
#set $yr = os.path.splitext($year)[0]
#set $yr = $yr[5:]
<option value="$yr">$yr</option>
#end for
<option selected>- $gettext("select year") -</option>
</select>
<br/>
</div>
Anyhow I'm really impressed of the power of Cheetah!
Tom Keffer schrieb am Samstag, 25. Juli 2026 um 17:34:27 UTC+2:
> 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
>>>>
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