Establish sql connection only after data got scraped successfully
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fc952670bb
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@ -13,6 +13,18 @@ class DwdScraper:
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last_station = self.get_station_to_update()
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print("checking station", last_station)
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print(last_station)
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r = requests.get('https://opendata.dwd.de/climate_environment/CDC/observations_germany/climate/daily/kl/recent/tageswerte_KL_' + str(last_station) + '_akt.zip', stream=True)
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print(r.url)
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if r.status_code != 200:
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return
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zip = zipfile.ZipFile(io.BytesIO(r.content))
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files = zip.namelist()
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print(files)
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files_climate = [f for f in files if f.startswith("produkt_klima_")]
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print(files_climate)
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with psycopg2.connect(config_db["uri"]) as conn:
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with conn.cursor() as cur:
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@ -22,77 +34,64 @@ class DwdScraper:
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curr_station_id = current_station[0]
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curr_station_dwd_id = current_station[4]
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print(curr_station_dwd_id)
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r = requests.get('https://opendata.dwd.de/climate_environment/CDC/observations_germany/climate/daily/kl/recent/tageswerte_KL_' + str(curr_station_dwd_id) + '_akt.zip', stream=True)
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print(r.url)
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if r.status_code == 200:
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zip = zipfile.ZipFile(io.BytesIO(r.content))
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files = zip.namelist()
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print(files)
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files_climate = [f for f in files if f.startswith("produkt_klima_")]
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print(files_climate)
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is_first_line = True
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for line in zip.open(files_climate[0]):
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l = line.decode('utf-8').strip()
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if is_first_line:
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is_first_line = False
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continue
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buffer = []
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b = {}
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is_first_line = True
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b["dwd_id"], l = l.strip().split(";", 1)
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b["dwd_id"] = str(b["dwd_id"])
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b["date"], l = l.strip().split(";", 1)
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b["date"] = str(b["date"])
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b["date"] = datetime.date(int(b["date"][0:4]), int(b["date"][4:6]), int(b["date"][6:8]))
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b["qn_3"], l = l.strip().split(";", 1)
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b["qn_3"] = self.cleanup_value(int(b["qn_3"]))
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b["fx"], l = l.strip().split(";", 1)
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b["fx"] = self.cleanup_value(float(b["fx"]))
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b["fm"], l = l.strip().split(";", 1)
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b["fm"] = self.cleanup_value(float(b["fm"]))
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b["qn_4"], l = l.strip().split(";", 1)
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b["qn_4"] = self.cleanup_value(int(b["qn_4"]))
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b["rsk"], l = l.strip().split(";", 1)
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b["rsk"] = self.cleanup_value(float(b["rsk"]))
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b["rskf"], l = l.strip().split(";", 1)
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b["rskf"] = self.cleanup_value(int(b["rskf"]))
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b["sdk"], l = l.strip().split(";", 1)
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b["sdk"] = self.cleanup_value(float(b["sdk"]))
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b["shk_tag"], l = l.strip().split(";", 1)
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b["shk_tag"] = self.cleanup_value(float(b["shk_tag"]))
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b["nm"], l = l.strip().split(";", 1)
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b["nm"] = self.cleanup_value(float(b["nm"]))
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b["vpm"], l = l.strip().split(";", 1)
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b["vpm"] = self.cleanup_value(float(b["vpm"]))
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b["pm"], l = l.strip().split(";", 1)
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b["pm"] = self.cleanup_value(float(b["pm"]))
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b["tmk"], l = l.strip().split(";", 1)
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b["tmk"] = self.cleanup_value(float(b["tmk"]))
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b["upm"], l = l.strip().split(";", 1)
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b["upm"] = self.cleanup_value(float(b["upm"]))
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b["txk"], l = l.strip().split(";", 1)
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b["txk"] = self.cleanup_value(float(b["txk"]))
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b["tnk"], l = l.strip().split(";", 1)
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b["tnk"] = self.cleanup_value(float(b["tnk"]))
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b["tgk"], l = l.strip().split(";", 1)
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b["tgk"] = self.cleanup_value(float(b["tgk"]))
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for line in zip.open(files_climate[0]):
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l = line.decode('utf-8').strip()
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if is_first_line:
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is_first_line = False
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continue
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#print(b)
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print(curr_station_id, b["date"].isoformat())
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b = {}
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b["dwd_id"], l = l.strip().split(";", 1)
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b["dwd_id"] = str(b["dwd_id"])
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b["date"], l = l.strip().split(";", 1)
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b["date"] = str(b["date"])
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b["date"] = datetime.date(int(b["date"][0:4]), int(b["date"][4:6]), int(b["date"][6:8]))
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b["qn_3"], l = l.strip().split(";", 1)
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b["qn_3"] = self.cleanup_value(int(b["qn_3"]))
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b["fx"], l = l.strip().split(";", 1)
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b["fx"] = self.cleanup_value(float(b["fx"]))
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b["fm"], l = l.strip().split(";", 1)
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b["fm"] = self.cleanup_value(float(b["fm"]))
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b["qn_4"], l = l.strip().split(";", 1)
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b["qn_4"] = self.cleanup_value(int(b["qn_4"]))
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b["rsk"], l = l.strip().split(";", 1)
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b["rsk"] = self.cleanup_value(float(b["rsk"]))
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b["rskf"], l = l.strip().split(";", 1)
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b["rskf"] = self.cleanup_value(int(b["rskf"]))
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b["sdk"], l = l.strip().split(";", 1)
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b["sdk"] = self.cleanup_value(float(b["sdk"]))
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b["shk_tag"], l = l.strip().split(";", 1)
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b["shk_tag"] = self.cleanup_value(float(b["shk_tag"]))
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b["nm"], l = l.strip().split(";", 1)
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b["nm"] = self.cleanup_value(float(b["nm"]))
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b["vpm"], l = l.strip().split(";", 1)
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b["vpm"] = self.cleanup_value(float(b["vpm"]))
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b["pm"], l = l.strip().split(";", 1)
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b["pm"] = self.cleanup_value(float(b["pm"]))
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b["tmk"], l = l.strip().split(";", 1)
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b["tmk"] = self.cleanup_value(float(b["tmk"]))
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b["upm"], l = l.strip().split(";", 1)
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b["upm"] = self.cleanup_value(float(b["upm"]))
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b["txk"], l = l.strip().split(";", 1)
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b["txk"] = self.cleanup_value(float(b["txk"]))
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b["tnk"], l = l.strip().split(";", 1)
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b["tnk"] = self.cleanup_value(float(b["tnk"]))
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b["tgk"], l = l.strip().split(";", 1)
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b["tgk"] = self.cleanup_value(float(b["tgk"]))
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#print(b)
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print(curr_station_id, b["date"].isoformat())
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cur.execute("SELECT id FROM climate WHERE station = %s AND date = %s; ", [curr_station_id, b["date"].isoformat()])
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if cur.rowcount == 0:
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cur.execute("INSERT INTO climate (station, date, qn_3, fx, fm, qn_4, rsk, rskf, sdk, shk_tag, nm, vpm, pm, tmk, upm, txk, tnk, tgk) VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s);",
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[curr_station_id, b["date"].isoformat(), b["qn_3"], b["fx"], b["fm"], b["qn_4"], b["rsk"], b["rskf"], b["sdk"], b["shk_tag"], b["nm"], b["vpm"], b["pm"], b["tmk"], b["upm"], b["txk"], b["tnk"], b["tgk"]])
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print("imported")
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else:
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print("ignored")
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cur.execute("SELECT id FROM climate WHERE station = %s AND date = %s; ", [curr_station_id, b["date"].isoformat()])
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if cur.rowcount == 0:
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cur.execute("INSERT INTO climate (station, date, qn_3, fx, fm, qn_4, rsk, rskf, sdk, shk_tag, nm, vpm, pm, tmk, upm, txk, tnk, tgk) VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s);",
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[curr_station_id, b["date"].isoformat(), b["qn_3"], b["fx"], b["fm"], b["qn_4"], b["rsk"], b["rskf"], b["sdk"], b["shk_tag"], b["nm"], b["vpm"], b["pm"], b["tmk"], b["upm"], b["txk"], b["tnk"], b["tgk"]])
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print("imported")
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else:
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print("ignored")
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cur.execute("UPDATE stations SET dwd_last_update = %s WHERE dwd_id = %s;", [datetime.datetime.today().isoformat(), last_station])
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conn.commit()
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