forked from expo/troggle
106 lines
4.5 KiB
Python
106 lines
4.5 KiB
Python
import os, stat
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import re
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from pathlib import Path
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from urllib.parse import urljoin, unquote as urlunquote
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from urllib.request import urlopen
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from django.conf import settings
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from django.shortcuts import render
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from django.http import HttpResponse
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from troggle.core.models.survex import Wallet, SingleScan
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from troggle.core.models.caves import GetCaveLookup
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from troggle.core.views.expo import getmimetype
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#import parsers.surveys
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'''one of these views serves files as binary blobs, and simply set the mime type based on the file extension,
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as does the urls.py dispatcher which sends them here. Here they should actually have the filetype checked
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by looking inside the file before being served.
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need to check if inavlid query string is invalid, or produces multiple replies
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and render a user-friendly error page.
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'''
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def walletslistyear(request, year):
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'''Page which displays a list of all the wallets in a specific year
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'''
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if year < 1976 or year > 2050:
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return render(request, 'errors/generic.html', {'message': 'Year out of range. Must be between 1976 and 2050'})
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else:
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year = str(year)
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return render(request, 'errors/generic.html', {'message': 'not implemented yet'})
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def walletslistcave(request, caveid):
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'''Page which displays a list of all the wallets attached to a specific cave, e.g. '1623-204'
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'''
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g = GetCaveLookup()
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if caveid not in g:
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return render(request, 'errors/generic.html', {'message': f'Cave identifier not recognised:"{caveid}"'})
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return render(request, 'errors/generic.html', {'message': 'not implemented yet'})
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def oldwallet(request, path):
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'''Now called only for non-standard wallet structures for pre-2000 wallets
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'''
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# print([ s.walletname for s in Wallet.objects.all() ])
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print(f'! - oldwallet path:{path}')
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try:
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wallet = Wallet.objects.get(walletname=urlunquote(path))
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return render(request, 'wallet_old.html', { 'wallet':wallet, 'settings': settings })
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except:
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message = f'Scan folder error or not found \'{path}\' .'
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return render(request, 'errors/generic.html', {'message': message})
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def walletindex(request, path):
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'''All years: special 'wallet' for scanned index pages
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'''
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# print([ s.walletname for s in Wallet.objects.all() ])
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print(f'! - walletindex path:{path}')
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try:
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wallet = Wallet.objects.get(walletname=urlunquote(path))
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return render(request, 'walletindex.html', { 'wallet':wallet, 'settings': settings })
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except:
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message = f'Scan folder error or not found \'{path}\' .'
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return render(request, 'errors/generic.html', {'message': message})
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def scansingle(request, path, file):
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'''sends a single binary file to the user for display - browser decides how using mimetype
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'''
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try:
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wallet = Wallet.objects.get(walletname=urlunquote(path))
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singlescan = SingleScan.objects.get(wallet=wallet, name=file)
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print(" - scansingle {}:{}:{}:".format(path, file, getmimetype(file)))
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return HttpResponse(content=open(singlescan.ffile,"rb"), content_type=getmimetype(file)) # any type of image
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except:
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message = f'Scan folder or scan item error or not found \'{path}\' and \'{file}\'.'
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return render(request, 'errors/generic.html', {'message': message})
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def allscans(request):
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'''Returns all the wallets in the system, we would like to use
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the Django queryset SQL optimisation https://docs.djangoproject.com/en/3.2/ref/models/querysets/#prefetch-related
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to get the related singlescan and survexblock objects but that requires rewriting this to do the query on those, not on
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the wallets
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'''
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manywallets = Wallet.objects.all()
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# manywallets = Wallet.objects.all().prefetch_related('singlescan') fails as the link is defined on 'singlescan' not on 'wallet'
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return render(request, 'manywallets.html', { 'manywallets':manywallets, 'settings': settings })
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def cavewallets(request, cave_id):
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'''Returns all the wallets for just one cave,
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'''
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Gcavelookup = GetCaveLookup()
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if cave_id in Gcavelookup:
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cave = Gcavelookup[cave_id]
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else:
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return render(request,'errors/badslug.html', {'badslug': cave_id})
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# remove duplication. SOrting is done in the template
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wallets = set(Wallet.objects.filter(survexblock__survexfile__cave=cave))
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manywallets = list(wallets)
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return render(request, 'cavewallets.html', { 'manywallets':manywallets, 'settings': settings, 'cave': cave})
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