Smart Thermostat Raspberry PI - part receive temperature scenarios
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""" | |
Downloads most recent temperature scenarios from cloud server. | |
First inserts new temperature scenarios in actscenario table. | |
Then deletes old scenarios from actscenario table. Leaves the last 3 versions. | |
Used by fcontroll() function. | |
""" | |
while True: | |
try: | |
facurtime = time.time() | |
favepoch = int(facurtime) | |
dbdac1 = dbc.cursor() | |
dbdac1.execute("SELECT min(vkey) FROM actscenario") | |
rows = dbdac1.fetchall() | |
maxrow = (rows)[0][0] | |
if (maxrow == None): | |
maxrow = '40b5af01'+'_'+'9999999999'+'_'+'9999999' | |
dbdac1.close() | |
#logging.info(maxrow) | |
with hpool.connection(timeout=3) as connectionacts: | |
tableacts = connectionacts.table('hactscenario') | |
hscanacts = tableacts.scan(row_stop=maxrow) | |
dbdac2 = dbc.cursor() | |
for key, data in hscanacts: | |
logging.info(str(key)) | |
dbdac2.execute("INSERT INTO actscenario (vkey, vgroup, viepoch, vtempdif, vouttempdif, run0, run1, run2, run3, run4, run5, vscore) VALUES('%s',%i,%i,%i,%i,%i,%i,%i,%i,%i,%i,%i)" % (str(key),int(data['fd:group']),int(data['fd:iepoch']),int(data['fd:tempdif']),int(data['fd:outtempdif']),int(data['fd:run0']),int(data['fd:run1']),int(data['fd:run2']),int(data['fd:run3']),int(data['fd:run4']),int(data['fd:run5']),int(data['fd:score']) ) ) | |
dbdac2.close() | |
#delete all scenario except for the last 3 versions | |
dbdac3 = dbc.cursor() | |
dbdac3.execute("DELETE FROM actscenario WHERE viepoch NOT IN (SELECT distinct viepoch FROM actscenario order by viepoch desc LIMIT 3)") | |
dbdac3.close() | |
except Exception: | |
logging.exception("fgetactscenario") | |
time.sleep(650) |
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