Move DwdScraper to a class
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@ -7,104 +7,110 @@ import zipfile
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import datetime
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from config.db import db as config_db
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def cleanup_value(v):
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if int(v) == -999:
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return None
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class DwdScraper:
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return v
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def run(self):
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def cleanup_value(v):
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if int(v) == -999:
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return None
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conn = psycopg2.connect(config_db["uri"])
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cur = conn.cursor()
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return v
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cur.execute("SELECT min(dwd_last_update) FROM stations;")
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last_date = cur.fetchall()[0][0]
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print(last_date)
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conn = psycopg2.connect(config_db["uri"])
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cur = conn.cursor()
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if not last_date is None:
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cur.execute("SELECT id, name, lat, lon, dwd_id, dwd_last_update FROM stations WHERE dwd_last_update = %s LIMIT 1;", [last_date])
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else:
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cur.execute("SELECT id, name, lat, lon, dwd_id, dwd_last_update FROM stations WHERE dwd_last_update IS NULL LIMIT 1;")
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last_station = cur.fetchone()
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print(last_station)
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cur.execute("SELECT min(dwd_last_update) FROM stations;")
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last_date = cur.fetchall()[0][0]
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print(last_date)
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curr_station_id = last_station[0]
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curr_station_dwd_id = last_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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buffer = []
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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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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"] = cleanup_value(int(b["qn_3"]))
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b["fx"], l = l.strip().split(";", 1)
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b["fx"] = cleanup_value(float(b["fx"]))
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b["fm"], l = l.strip().split(";", 1)
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b["fm"] = cleanup_value(float(b["fm"]))
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b["qn_4"], l = l.strip().split(";", 1)
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b["qn_4"] = cleanup_value(int(b["qn_4"]))
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b["rsk"], l = l.strip().split(";", 1)
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b["rsk"] = cleanup_value(float(b["rsk"]))
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b["rskf"], l = l.strip().split(";", 1)
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b["rskf"] = cleanup_value(int(b["rskf"]))
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b["sdk"], l = l.strip().split(";", 1)
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b["sdk"] = cleanup_value(float(b["sdk"]))
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b["shk_tag"], l = l.strip().split(";", 1)
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b["shk_tag"] = cleanup_value(float(b["shk_tag"]))
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b["nm"], l = l.strip().split(";", 1)
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b["nm"] = cleanup_value(float(b["nm"]))
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b["vpm"], l = l.strip().split(";", 1)
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b["vpm"] = cleanup_value(float(b["vpm"]))
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b["pm"], l = l.strip().split(";", 1)
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b["pm"] = cleanup_value(float(b["pm"]))
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b["tmk"], l = l.strip().split(";", 1)
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b["tmk"] = cleanup_value(float(b["tmk"]))
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b["upm"], l = l.strip().split(";", 1)
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b["upm"] = cleanup_value(float(b["upm"]))
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b["txk"], l = l.strip().split(";", 1)
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b["txk"] = cleanup_value(float(b["txk"]))
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b["tnk"], l = l.strip().split(";", 1)
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b["tnk"] = cleanup_value(float(b["tnk"]))
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b["tgk"], l = l.strip().split(";", 1)
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b["tgk"] = 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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if not last_date is None:
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cur.execute("SELECT id, name, lat, lon, dwd_id, dwd_last_update FROM stations WHERE dwd_last_update = %s LIMIT 1;", [last_date])
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else:
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print("ignored")
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cur.execute("SELECT id, name, lat, lon, dwd_id, dwd_last_update FROM stations WHERE dwd_last_update IS NULL LIMIT 1;")
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last_station = cur.fetchone()
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print(last_station)
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cur.execute("UPDATE stations SET dwd_last_update = %s WHERE id = %s;", [datetime.datetime.today().isoformat(), curr_station_id])
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conn.commit()
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curr_station_id = last_station[0]
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curr_station_dwd_id = last_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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cur.close()
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conn.close()
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buffer = []
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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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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"] = cleanup_value(int(b["qn_3"]))
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b["fx"], l = l.strip().split(";", 1)
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b["fx"] = cleanup_value(float(b["fx"]))
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b["fm"], l = l.strip().split(";", 1)
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b["fm"] = cleanup_value(float(b["fm"]))
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b["qn_4"], l = l.strip().split(";", 1)
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b["qn_4"] = cleanup_value(int(b["qn_4"]))
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b["rsk"], l = l.strip().split(";", 1)
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b["rsk"] = cleanup_value(float(b["rsk"]))
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b["rskf"], l = l.strip().split(";", 1)
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b["rskf"] = cleanup_value(int(b["rskf"]))
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b["sdk"], l = l.strip().split(";", 1)
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b["sdk"] = cleanup_value(float(b["sdk"]))
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b["shk_tag"], l = l.strip().split(";", 1)
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b["shk_tag"] = cleanup_value(float(b["shk_tag"]))
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b["nm"], l = l.strip().split(";", 1)
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b["nm"] = cleanup_value(float(b["nm"]))
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b["vpm"], l = l.strip().split(";", 1)
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b["vpm"] = cleanup_value(float(b["vpm"]))
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b["pm"], l = l.strip().split(";", 1)
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b["pm"] = cleanup_value(float(b["pm"]))
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b["tmk"], l = l.strip().split(";", 1)
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b["tmk"] = cleanup_value(float(b["tmk"]))
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b["upm"], l = l.strip().split(";", 1)
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b["upm"] = cleanup_value(float(b["upm"]))
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b["txk"], l = l.strip().split(";", 1)
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b["txk"] = cleanup_value(float(b["txk"]))
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b["tnk"], l = l.strip().split(";", 1)
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b["tnk"] = cleanup_value(float(b["tnk"]))
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b["tgk"], l = l.strip().split(";", 1)
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b["tgk"] = 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("UPDATE stations SET dwd_last_update = %s WHERE id = %s;", [datetime.datetime.today().isoformat(), curr_station_id])
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conn.commit()
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cur.close()
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conn.close()
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if __name__ == "__main__":
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DwdScraper().run()
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