import csv
import os
import re
from pathlib import Path
from django.conf import settings
from troggle.core.models.caves import Cave
from troggle.core.models.logbooks import QM
from troggle.core.models.troggle import DataIssue
"""Reads the CSV files containg QMs for a select few caves
See parsers/survex.py for the parser which extracts QMs from the survex files
"""
def deleteQMs():
QM.objects.all().delete()
DataIssue.objects.filter(parser="QMs").delete()
def parseCaveQMs(cave, inputFile, ticked=False):
"""Runs through the CSV file at inputFile (which is a relative path from expoweb) and
saves each QM as a QM instance.
This is creating and linking a Placeholder logbookentry dated 1st Jan. in the relevant
year. This is pointless but it is needed because found_by is a ForeignKey in the db
and we can't be arsed to fudge this properly with a null.(July 2020)
Linking to a passage in a SVX file might be more interesting as the QM does sometimes
have the passage name, e.g. in 204/qm.csv
C2000-204-39 B Tree Pitch in Cave Tree treeumphant.28 Gosser Streamway
The CSV file does not have the exact date for the QM, only the year, so links to
survex files might be ambiguous. But potentially useful?
Much of this code assumes that QMs are edited using troggle. This is not done so this code can be deleted.
All QMs are created afresh and this is all only run once on import on a fresh database.
"""
if cave == "204-steinBH":
try:
steinBr = Cave.objects.get(official_name="Steinbrückenhöhle")
caveid = steinBr
except Cave.DoesNotExist:
message = f" ! - {qmPath} Steinbruckenhoehle is not in the database. Please run cave parser"
print(message)
DataIssue.objects.create(parser="QMs", message=message)
return
elif cave == "234-Hauch":
try:
hauchHl = Cave.objects.get(official_name="Hauchhöhle")
caveid = hauchHl
except Cave.DoesNotExist:
message = f" ! - {qmPath} Hauchhoehle is not in the database. Please run cave parser"
print(message)
DataIssue.objects.create(parser="QMs", message=message)
return
elif cave == "161-KH":
try:
kh = Cave.objects.get(official_name="Kaninchenhöhle")
caveid = kh
except Cave.DoesNotExist:
message = f" ! - {qmPath} KH is not in the database. Please run cave parser"
print(message)
DataIssue.objects.create(parser="QMs", message=message)
nqms = parse_KH_QMs(kh, inputFile=inputFile, ticked=ticked)
return nqms
# qmPath = settings.EXPOWEB+inputFile
qmPath = Path(settings.EXPOWEB, inputFile)
with open(qmPath, "r") as qmCSVContents:
dialect = csv.Sniffer().sniff(qmCSVContents.read())
qmCSVContents.seek(0, 0)
qmReader = csv.reader(qmCSVContents, dialect=dialect)
next(qmReader) # Skip header row
n = 0
nqms = 0
for line in qmReader:
try:
n += 1
year = int(line[0][1:5])
f"PH_{int(year)}_{int(n):02d}"
QMnum = re.match(r".*?-\d*?-X?(?P<numb>\d*)", line[0]).group("numb")
newQM = QM()
# newQM.found_by=placeholder
newQM.number = QMnum
newQM.cave = caveid
newQM.blockname = ""
if line[1] == "Dig":
newQM.grade = "D"
else:
newQM.grade = line[1]
newQM.area = line[2]
newQM.location_description = line[3]
# In the table, completion is indicated by the presence of a completion discription.
newQM.completion_description = line[4]
newQM.nearest_station_description = line[5]
if newQM.completion_description:
newQM.ticked = True
else:
newQM.ticked = False
newQM.comment = line[6]
try:
# year and number are unique for a cave in CSV imports
preexistingQM = QM.objects.get(
number=QMnum, found_by__date__year=year
) # if we don't have this one in the DB, save it
if (
preexistingQM.new_since_parsing is False
): # if the pre-existing QM has not been modified, overwrite it - VERY OLD THING
preexistingQM.delete()
newQM.expoyear = year
newQM.save()
else: # otherwise, print that it was ignored
print((" - preserving " + str(preexistingQM) + ", which was edited in admin \r"))
except QM.DoesNotExist: # if there is no pre-existing QM, save the new one
newQM.expoyear = year
newQM.save()
nqms += 1
except KeyError: # check on this one
message = f" ! - {qmPath} KeyError {str(line)} "
print(message)
DataIssue.objects.create(parser="QMs", message=message)
continue
except IndexError:
message = f" ! - {qmPath} IndexError {str(line)} "
print(message)
DataIssue.objects.create(parser="QMs", message=message)
continue
return nqms
def parse_KH_QMs(kh, inputFile, ticked):
"""import QMs from the 1623-161 (Kaninchenhohle) html pages, different format"""
with open(os.path.join(settings.EXPOWEB, inputFile), "r") as khQMfile:
khQMs = khQMfile.readlines()
nqms = 0
for line in khQMs:
res = re.search(
r"name=\"[CB](?P<year>\d*)-(?P<cave>\d*)-(?P<number>\d*).*</a> (?P<grade>[ABDCV])<dd>(?P<description>.*)\[(?P<nearest_station>.*)\]",
line,
)
if res:
res = res.groupdict()
year = int(res["year"])
lookupAttribs = {
#'found_by':placeholder,
"blockname": "",
"expoyear": year,
"number": res["number"],
"cave": kh,
"grade": res["grade"],
}
nonLookupAttribs = {
"ticked": ticked,
"nearest_station_name": res["nearest_station"],
"location_description": res["description"],
}
# Create new. We know it doesn't exist as we deleted evrything when we started.
instance = QM.objects.create(**nonLookupAttribs, **lookupAttribs)
nqms += 1
return nqms
def Load_QMs():
deleteQMs()
n204 = parseCaveQMs(cave="204-steinBH", inputFile=r"1623/204/qm.csv")
n234 = parseCaveQMs(cave="234-Hauch", inputFile=r"1623/234/qm.csv")
n161 = parseCaveQMs(cave="161-KH", inputFile="1623/161/qmtodo.htm", ticked=False)
t161 = parseCaveQMs(cave="161-KH", inputFile="1623/161/qmdone.htm", ticked=True)
# parseCaveQMs(cave='balkonhoehle',inputFile=r"1623/264/qm.csv")
print(f" - Imported: {n204} QMs for 204, {n234} QMs for 234, {t161} QMs for 161 done, {n161} QMs for 161 not done.")
print()