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Code Issues 19 Projects 3 Activity
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troggle/core/views/scans.py

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Python
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import datetime
from pathlib import Path
from urllib.parse import unquote as urlunquote
from django.conf import settings
from django.http import HttpResponse
from django.shortcuts import render
from troggle.core.models.caves import GetCaveLookup
from troggle.core.models.survex import SingleScan, SurvexBlock, SurvexPersonRole
from troggle.core.models.wallets import Wallet
from troggle.core.models.troggle import DataIssue, Expedition, Person, PersonExpedition
from troggle.core.views.expo import getmimetype
from troggle.parsers.caves import add_cave_to_pending_list
from troggle.parsers.people import GetPersonExpeditionNameLookup
from troggle.parsers.survex import set_walletdate
"""one of these views serves files as binary blobs, and simply set the mime type based on the file extension,
as does the urls.py dispatcher which sends them here. Here they should actually have the filetype checked
by looking inside the file before being served.
need to check if inavlid query string is invalid, or produces multiple replies
and render a user-friendly error page.
Note that caveifywallet() etc do NOT save the object to the db. They are ephemeral, just for the page rendering of the
manywallets dict.
TODO
cave for a wallet - just gets the last one, randomly. SHould make this a list or many:many ideally
-- add the participants on an explicit wallet list to .slugpeople so that they get proper URL-linked
on the per-person wallet report, and do the same thing for per-cave and per-year wallet reports
add this file in to the todo list thinggy.
"""
def populatewallet(w):
"""Copy survex data here just for display, not permanently
Only gets data from the survex file when it was parsed on import, or edited (& thus parsed) online,
so doesn't work if there was no *ref value
"""
slugpeople = set()
blocks = SurvexBlock.objects.filter(scanswallet=w)
for b in blocks:
for personrole in b.survexpersonrole_set.all():
slugpeople.add(personrole.person) # Person objects, not the names anymore
w.slugpeople = slugpeople
def caveifywallet(w):
"""Gets the cave from the list of survex files,
only selects one of them though. Only used for display.
FIX THIS to display many caves
"""
# print(f' - Caveify {w=}')
blocknames = []
blocks = SurvexBlock.objects.filter(scanswallet=w)
for b in blocks:
# NB b.cave is not populated by parser. Use b.survexfile.cave instead, or we could parse b.survexpath
if b.survexfile.cave:
w.caveobj = (
b.survexfile.cave
) # just gets the last one, randomly. SHould make this a list or many:many ideally
w.cave = w.caveobj
if b.name:
blocknames.append(b.name)
if w.name():
w.displaynames = [w.name()]
else:
w.displaynames = blocknames
def fillblankpeople(w):
"""Find people attached to a wallet via the survex files
if no one explicitly attached.
the JSON string which may OR MAY NOT be formatted as a list.
w.slugpeople is from the survexfiles
w.persons is from the explicit list of peoples' names in the wallet
The template choses how to display them.
"""
def nobody(wplist):
if len(wplist) > 1:
return False
nobod = wp[0].lower()
if nobod == "unknown" or nobod == "nobody" or nobod == " " or nobod == "":
return True
else:
return False
wp = w.people() # just a list of names as strings, direct from JSON.
if not isinstance(wp, list): # might be None
print(f"{w} NOT A LIST {type(wp)}: {wp}")
populatewallet(w)
return
if not wp: # e.g. empty list
# print(f"{w} {wp=}")
populatewallet(w) # sets w.slugpeople
return
if nobody(wp):
populatewallet(w) # sets w.slugpeople
else:
w.persons = parse_name_list(w)
populatewallet(w) # sets w.slugpeople
if hasattr(w, "slugpeople"):
w.persons = w.persons.difference(w.slugpeople)
return
def is_cave(wallet, id):
if not id:
return False
Gcavelookup = GetCaveLookup()
id = id.strip("' []'")
if id in Gcavelookup:
return True
else:
# Historic wallets used just 2 or 3 digits and were all 1623 area. So, just for these wallets,
# assume it is 1623-xxx
if f"1623-{id}" in Gcavelookup:
print(f" - Should modify wallet {wallet} to use 1623- prefix for cave <{id}>")
Gcavelookup[id] = Gcavelookup[f"1623-{id}"] # restoring an ambiguous alias, BAD idea.
return True
else:
print(f" - Wallet {wallet} Failed to find cave object from id <{id}>")
if id.lower() != "unknown" and id != "":
print(f" - adding <{id}> to pendingcaves DataIssues")
add_cave_to_pending_list(id, wallet, f"Wallet {wallet} - Could not find id <{id}>")
return False
def fillblankothers(w):
"""This is on the way to having a many:many relationship between Caves and Wallets
"""
if not w.walletdate:
set_walletdate(w)
Gcavelookup = GetCaveLookup()
wcaveid = w.cave()
if not wcaveid or wcaveid == "":
caveifywallet(w)
else:
if type(wcaveid) == list:
for i in wcaveid:
i = i.strip("' []'")
if is_cave(w,i):
w.caveobj = Gcavelookup[i] # just sets it to the last one found. nasty. bug waiting to happen
elif wcaveid.find(',') != -1:
# it's a list of cave ids as a string
ids = wcaveid.split(',')
for i in ids:
i = i.strip("' []'")
if is_cave(w,i):
w.caveobj = Gcavelookup[i] # just sets it to the last one found. nasty. bug waiting to happen
else:
if is_cave(w,wcaveid):
w.caveobj = Gcavelookup[wcaveid.strip("' []'")]
def fixsurvextick(w, ticks):
ticks["S"] = w.fixsurvextick(ticks["S"])
def parse_name_list(w):
"""Given a list of strings, which are names, and the year of an expo,
return a set of Persons
"""
namelist = w.people()
peeps = set()
expo = Expedition.objects.get(year=w.year())
crew = GetPersonExpeditionNameLookup(expo)
for n in namelist:
# if n.lower().startswith("lydia"):
# print(f"{w} {n=} ")
# for x in crew:
# if x.lower()==n.lower():
# print(f"{w} {n=} {x=}")
if n.lower() in crew:
peeps.add(crew[n.lower()].person)
else:
if n.startswith("*"): #ignore people flagged as guests or not-expo anyway, such as ARGE
continue
nobod = n.lower()
if nobod == "unknown" or nobod == "nobody" or nobod == " " or nobod == "":
continue
else:
wurl = f"/walletedit/{w.walletname.replace('#',':')}"
message = f"{w} name '{n.lower()}' NOT found in GetPersonExpeditionNameLookup({w.year()}) ?!"
print(message)
DataIssue.objects.update_or_create(parser="wallets", message=message, url=wurl)
return peeps
def walletslistperson(request, slug):
"""Page which displays a list of all the wallets for a specific person
"""
# Remember that 'personexpedition__expedition' is interpreted by Django to mean the
# 'expedition' object which is connected by a foreign key to the 'personexpedition'
# object, which is a field of the PersonLogEntry object:
# PersonLogEntry.objects.filter(personexpedition__expedition=expo)
def personwallet(p):
manywallets = set()
# Get the persons from the survexblocks on the survexfiles attached to the wallet directly
sps = SurvexPersonRole.objects.filter(person=p)
for sp in sps:
w = sp.survexblock.scanswallet
if w:
manywallets.add(w)
# Now read the text strings in the list of wallet people and identify the person
pes = PersonExpedition.objects.filter(person=p)
for person_expo in pes:
expo = person_expo.expedition
year = expo.year
crew = GetPersonExpeditionNameLookup(expo)
wallets = Wallet.objects.filter(walletyear__year=year)
for w in wallets:
if w in manywallets:
# we already know this is a wallet we need to report on
continue
for n in w.people():
# if n.lower().startswith("lydia"):
# print(f"{w} {n=} ")
# for x in crew:
# if x.lower()==n.lower():
# print(f"{w} {n=} {x=}")
if n.lower() in crew:
if crew[n.lower()] == person_expo:
manywallets.add(w)
# print(f"{w} Found a non-survex wallet for {person_expo}")
else:
if n.startswith("*"): #ignore people flagged as guests or not-expo anyway, such as ARGE
pass
nobod = n.lower()
if nobod == "unknown" or nobod == "nobody" or nobod == " " or nobod == "":
pass
else:
wurl = f"/walletedit/{w.walletname.replace('#',':')}"
message = f"{w} name '{n.lower()}' NOT found in GetPersonExpeditionNameLookup({year}) ?!"
print(message)
DataIssue.objects.update_or_create(parser="wallets", message=message, url=wurl)
for w in manywallets:
fillblankpeople(w)
fillblankothers(w)
w.ticks = w.get_ticks() # the complaints in colour form
fixsurvextick(w, w.ticks)
return manywallets
# print("-walletslistperson")
p = Person.objects.get(slug=slug)
manywallets = personwallet(p)
expeditions = Expedition.objects.all()
print("--")
return render(
request,
"personwallets.html",
{"manywallets": manywallets, "settings": settings, "person": p, "expeditions": expeditions},
)
def setwalletsdates():
"""This sets all the undated wallets, but they should already all be dated on
import or on edit"""
wallets = Wallet.objects.filter(walletdate=None)
print(f"undated wallets: {len(wallets)}")
for w in wallets:
w.walletdate = w.date()
w.save()
def walletslistyear(request, year):
"""Page which displays a list of all the wallets in a specific year.
We have a field .walletyear, which we set on import.
"""
def ticksyearwallet(year):
manywallets = []
wallets = Wallet.objects.filter(walletyear__year=year)
for w in wallets:
manywallets.append(w)
fillblankpeople(w)
fillblankothers(w)
w.ticks = w.get_ticks() # the complaints in colour form, from the json file on disc
fixsurvextick(w, w.ticks)
return manywallets
# print("-walletslistyear")
if year < 1976 or year > 2050:
return render(request, "errors/generic.html", {"message": "Year out of range. Must be between 1976 and 2050"})
# return render(request, 'errors/generic.html', {'message': 'This page logic not implemented yet'})
year = str(year)
manywallets = ticksyearwallet(year)
expeditions = Expedition.objects.all() #bad Django style
expedition = expeditions.filter(year=year)
length_ug = 0.0
for w in manywallets:
for sb in w.survexblock_set.all():
length_ug += sb.legslength
print("--")
return render(
request,
"yearwallets.html",
{
"manywallets": manywallets,
"settings": settings,
"year": year,
"expeditions": expeditions,
"expedition": expedition,
"length_ug": length_ug,
},
)
def cavewallets(request, caveid):
"""Returns all the wallets for just one cave"""
print("-cavewallets")
Gcavelookup = GetCaveLookup()
if caveid in Gcavelookup:
cave = Gcavelookup[caveid]
else:
return render(request, "errors/badslug.html", {"badslug": f"{caveid} - from cavewallets()"})
# remove duplication. Sorting is done in the template
# But this only gets wallets which have survex files attached..
wallets = set(Wallet.objects.filter(survexblock__survexfile__cave=cave))
# all the ones without a survexblock attached via a *ref, search for match in JSON
zilchwallets = set(Wallet.objects.exclude(survexblock__survexfile__cave=cave))
for z in zilchwallets:
zcaveid = z.cave()
if zcaveid:
cleanid = str(zcaveid).strip("' []'")
if cleanid.find(',') != -1:
# it's a list of cave ids
wurl = f"/walletedit/{z.walletname.replace('#',':')}"
message = f" ! In {z.walletname} cavewallets, we do not handle lists of cave ids yet '{cleanid}'"
print(message)
DataIssue.objects.update_or_create(parser="scans", message=message, url=wurl)
# it's a list of cave ids as a string. Identify any orphan caves hidden here
ids = cleanid.split(',')
for i in ids:
i = i.strip("' []'")
if is_cave(z,i):
fcave = Gcavelookup[i.strip("' []'")] # just sets it to the last one found. nasty. bug waiting to happen
elif cleanid in Gcavelookup:
fcave = Gcavelookup[cleanid]
if str(fcave.slug()) == caveid:
# print(f' - Found one ! {z.walletname=} {zcaveid=}')
wallets.add(z)
elif f"1623-{cleanid}" in Gcavelookup: # special hack for all the old wallets which are 1623
fcave = Gcavelookup[f"1623-{cleanid}"]
if str(fcave.slug()) == caveid:
# print(f' - Found one ! {z.walletname=} {zcaveid=}')
wallets.add(z)
elif cleanid in ['surface', 'unknown', '']:
# message = f" ! In {z.walletname} cavewallets, ignoring '{cleanid}' as not a cave"
# print(message)
pass
else:
wurl = f"/walletedit/{z.walletname.replace('#',':')}"
message = f" ! In {z.walletname} cavewallets, there is an unrecognised cave name '{cleanid}', adding to pending list."
print(message)
DataIssue.objects.update_or_create(parser="scans", message=message, url=wurl)
add_cave_to_pending_list(cleanid, z, f"an unrecognised cave name in {z.walletname}")
manywallets = list(set(wallets))
for w in manywallets:
fillblankpeople(w)
fillblankothers(w)
w.ticks = w.get_ticks() # the complaints in colour form, from the json file on disc
fixsurvextick(w, w.ticks)
expeditions = Expedition.objects.all()
print("--")
return render(
request,
"cavewallets.html",
{"manywallets": manywallets, "settings": settings, "cave": cave, "expeditions": expeditions},
)
def oldwallet(request, path):
"""Now called only for non-standard wallet structures for pre-2000 wallets"""
# print([ s.walletname for s in Wallet.objects.all() ])
print(f"! - oldwallet path:{path}")
try:
wallet = Wallet.objects.get(walletname=urlunquote(path))
return render(request, "wallet_old.html", {"wallet": wallet, "settings": settings})
except:
message = f"Scan folder error or not found '{path}' ."
return render(request, "errors/generic.html", {"message": message})
def scansingle(request, path, file):
"""sends a single binary file to the user for display - browser decides how using mimetype
This is very unsafe"""
try:
wallet = Wallet.objects.get(walletname=urlunquote(path))
singlescan = SingleScan.objects.get(wallet=wallet, name=file)
imagefile = Path(singlescan.ffile, file)
if imagefile.is_file():
message = f" - scansingle {imagefile} {path}:{file}:{getmimetype(file)}:"
print(message)
return HttpResponse(content=open(imagefile, "rb"), content_type=getmimetype(file)) # any type of image
else:
message = f"Scan folder file '{imagefile}' not found. {path=} {file=}"
print(message)
return render(request, "errors/generic.html", {"message": message})
except:
message = f"Scan folder or scan item access error '{path}' and '{file}'."
return render(request, "errors/generic.html", {"message": message})
def allscans(request):
"""Returns all the wallets in the system, we would like to use
the Django queryset SQL optimisation https://docs.djangoproject.com/en/dev/ref/models/querysets/#prefetch-related
to get the related singlescan and survexblock objects but that requires rewriting this to do the query on those, not on
the wallets
"""
manywallets = Wallet.objects.all() # NB all of them
# manywallets = Wallet.objects.all().prefetch_related('singlescan') fails as the link is defined on 'singlescan' not on 'wallet'
expeditions = Expedition.objects.all()
return render(
request, "manywallets.html", {"manywallets": manywallets, "settings": settings, "expeditions": expeditions}
)
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