Hello,
i have installed the new stable version 4.0 in parallel (as described in
the WIKI beta test) to test if my hardware and my own extensions work with
python3.
I started with a new database and a new weewx.conf.
My old installation is weewx 3.9.1 (here the database and the weewx.conf
was created with version 3.8.0).
During my tests with the new version I have now encountered a strange
behaviour. Suddenly the database has lost the table "archive_daily_wind".
On my search for the error I then came across this thread:
https://groups.google.com/forum/m/#!topic/weewx-development/ODJ-VnkZS_0
With this thread I was able to research and reproduce the behaviour on my
computer.
The database was created with the new weewx.conf here is used:
schema = schemas.wview_extended.schema
manager = weewx.manager.DaySummaryManager
Afterwards I made my extension:
import schemas.wview
schema_with_sunshineHours = schemas.wview.schema + [('sunshineHours', 'REAL'
)]
After changing the weewx.conf to "schema =
user.sunshine.schema_with_sunshineHours" and a "wee_database --reconfigure"
and "wee_database --rebuild-daily" the table "archive_daily_wind" was
missing.
If I make the extension using the new schema:
import schemas.wview_extended
schema_with_sunshineHours = {
'table': schemas.wview_extended.table + [('sunshineHours', 'REAL')]
'day_summaries' : schemas.wview_extended.day_summaries + [(
'sunshineHours', 'SCALAR')]
and a "wee_database --reconfigure" and "wee_database --rebuild-daily" the
table is not lost.
Obviously the schemas and managers are not interchangeable and
interdependent. I am a bit confused now, which is probably the right
setting.
My old installation uses
manager = weewx.wxmanager.WXDaySummaryManager
and an extended schema based on
schemas.wview
The new version 4.0 uses as default
manager = weewx.manager.DaySummaryManager
schema = schemas.wview_extended.schema
In the documentation a third manager is also specified as default
weewx.wxmanager.DaySummaryManager
What are the differences between the managers?
Where are the differences between the two schemas?
Is there a documentation to read?
Which schema and which manager are recommended and how to update the
database to Verion 4.0?
I look forward to your answers and thank you for the great program
Martin
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