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import os
import re
from urllib.parse import urljoin
from pathlib import Path
from django.conf import settings
from django.db import models
from django.urls import reverse
# from troggle.core.models.troggle import DataIssue # circular import. Hmm
class SurvexDirectory(models.Model):
"""This relates a Cave to the primary SurvexFile which is the 'head' of the survex tree for
that cave. Surely this could just be a property of Cave ? No. Several subdirectories
all relate to the same Cave
"""
path = models.CharField(max_length=200)
cave = models.ForeignKey("Cave", blank=True, null=True, on_delete=models.SET_NULL)
primarysurvexfile = models.ForeignKey(
"SurvexFile", related_name="primarysurvexfile", blank=True, null=True, on_delete=models.SET_NULL
)
# could also include files in directory but not referenced
class Meta:
ordering = ("id",)
verbose_name_plural = "Survex directories"
def __str__(self):
return "[SurvexDirectory:" + str(self.path) + " | Primary svx:" + str(self.primarysurvexfile.path) + ".svx ]"
class SurvexFile(models.Model):
path = models.CharField(max_length=200)
survexdirectory = models.ForeignKey("SurvexDirectory", blank=True, null=True, on_delete=models.SET_NULL)
cave = models.ForeignKey("Cave", blank=True, null=True, on_delete=models.SET_NULL)
class Meta:
ordering = ("id",)
# Don't change from the default as that breaks troggle webpages and internal referencing!
# def __str__(self):
# return "[SurvexFile:"+str(self.path) + "-" + str(self.survexdirectory) + "-" + str(self.cave)+"]"
def exists(self):
fname = Path(settings.SURVEX_DATA, self.path + ".svx")
return fname.is_file()
def OpenFile(self):
fname = os.path.join(settings.SURVEX_DATA, self.path + ".svx")
return open(fname)
def SetDirectory(self):
dirpath = os.path.split(self.path)[0]
# pointless search every time we import a survex file if we know there are no duplicates..
# don't use this for initial import.
survexdirectorylist = SurvexDirectory.objects.filter(cave=self.cave, path=dirpath)
if survexdirectorylist:
self.survexdirectory = survexdirectorylist[0]
else:
survexdirectory = SurvexDirectory(path=dirpath, cave=self.cave, primarysurvexfile=self)
survexdirectory.save()
self.survexdirectory = survexdirectory
self.save()
def __str__(self):
return self.path
class SurvexStationLookUpManager(models.Manager):
"""what this does,
https://docs.djangoproject.com/en/dev/topics/db/managers/
This changes the .objects thinggy to use a case-insensitive match name__iexact
so that now SurvexStation.objects.lookup() works as a case-insensitive match
"""
def lookup(self, name):
blocknames, sep, stationname = name.rpartition(".")
return self.get(block=SurvexBlock.objects.lookup(blocknames), name__iexact=stationname)
class SurvexStation(models.Model):
name = models.CharField(max_length=100)
block = models.ForeignKey("SurvexBlock", null=True, on_delete=models.SET_NULL)
objects = SurvexStationLookUpManager() # overwrites SurvexStation.objects and enables lookup()
x = models.FloatField(blank=True, null=True)
y = models.FloatField(blank=True, null=True)
z = models.FloatField(blank=True, null=True)
def path(self):
r = self.name
b = self.block
while True:
if b.name:
r = b.name + "." + r
if b.parent:
b = b.parent
else:
return r
class Meta:
ordering = ("id",)
def __str__(self):
return self.name and str(self.name) or "no name"
#
# Single SurvexBlock
#
class SurvexBlockLookUpManager(models.Manager):
"""what this does,
https://docs.djangoproject.com/en/dev/topics/db/managers/
This adds a method to the .objects thinggy to use a case-insensitive match name__iexact
so that now SurvexBlock.objects.lookup() works as a case-insensitive match.
This is used in lookup() in SurvexStationLookUpManager()
which is used in Entrance().other_location() which is used in the Cave webpage
"""
def lookup(self, name):
if name == "":
blocknames = []
else:
blocknames = name.split(".")
block = SurvexBlock.objects.get(parent=None, survexfile__path=settings.SURVEX_TOPNAME)
for blockname in blocknames:
block = SurvexBlock.objects.get(parent=block, name__iexact=blockname)
return block
class SurvexBlock(models.Model):
"""One begin..end block within a survex file. The basic element of a survey trip.
Multiple anonymous survex blocks are possible within the same surfex file
"""
objects = SurvexBlockLookUpManager() # overwrites SurvexBlock.objects and enables lookup()
name = models.CharField(max_length=100)
title = models.CharField(max_length=200)
parent = models.ForeignKey("SurvexBlock", blank=True, null=True, on_delete=models.SET_NULL)
date = models.DateField(blank=True, null=True)
expedition = models.ForeignKey("Expedition", blank=True, null=True, on_delete=models.SET_NULL)
survexfile = models.ForeignKey("SurvexFile", blank=True, null=True, on_delete=models.SET_NULL)
survexpath = models.CharField(max_length=200) # the path for the survex stations
scanswallet = models.ForeignKey(
"Wallet", null=True, on_delete=models.SET_NULL
) # only ONE wallet per block. The most recent seen overwites.. ugh.
legsall = models.IntegerField(null=True) # summary data for this block
legslength = models.FloatField(null=True)
class Meta:
ordering = ("id",)
def __str__(self):
return "[SurvexBlock:" + str(self.name) + "-path:" + str(self.survexpath) + "-cave:" + str(self.cave) + "]"
def __str__(self):
return self.name and str(self.name) or "no name"
def isSurvexBlock(self): # Function used in templates
return True
def DayIndex(self):
"""This is used to set different colours for the different trips on
the calendar view of the expedition"""
mx = 10
index = list(SurvexBlock.objects.filter(date=self.date)).index(self)
if index not in range(0, mx):
print(f"DayIndex: More than {mx-1} SurvexBlock items on one day '{index}' {self}")
index = 0
# return list(self.survexblock_set.all()).index(self)
return index
class SurvexPersonRole(models.Model):
"""The CASCADE means that if a SurvexBlock or a Person is deleted, then the SurvexPersonRole
is deleted too
"""
survexblock = models.ForeignKey("SurvexBlock", on_delete=models.CASCADE)
# increasing levels of precision, Surely we only need survexblock and person now that we have no link to a logbook entry?
personname = models.CharField(max_length=100)
person = models.ForeignKey("Person", blank=True, null=True, on_delete=models.CASCADE) # not needed
personexpedition = models.ForeignKey("PersonExpedition", blank=True, null=True, on_delete=models.SET_NULL)
def __str__(self):
return str(self.personname) + " - " + str(self.survexblock)
class SingleScan(models.Model):
"""A single file holding an image. Could be raw notes, an elevation plot or whatever"""
ffile = models.CharField(max_length=200)
name = models.CharField(max_length=200)
wallet = models.ForeignKey("Wallet", null=True, on_delete=models.SET_NULL)
class Meta:
ordering = ("name",)
def get_absolute_url(self):
return urljoin(
settings.URL_ROOT,
reverse("scansingle", kwargs={"path": re.sub("#", "%23", self.wallet.walletname), "file": self.name}),
)
def __str__(self):
return "Scan Image: " + str(self.name) + " in " + str(self.wallet)
class DrawingFile(models.Model):
"""A file holding a Therion (several types) or a Tunnel drawing"""
dwgpath = models.CharField(max_length=200)
dwgname = models.CharField(max_length=200)
dwgwallets = models.ManyToManyField("Wallet") # implicitly links via folders to scans to SVX files
scans = models.ManyToManyField("SingleScan") # implicitly links via scans to SVX files
dwgcontains = models.ManyToManyField("DrawingFile") # case when its a frame type
filesize = models.IntegerField(default=0)
npaths = models.IntegerField(default=0)
survexfiles = models.ManyToManyField("SurvexFile") # direct link to SVX files - not populated yet
class Meta:
ordering = ("dwgpath",)
def __str__(self):
return "Drawing File: " + str(self.dwgname) + " (" + str(self.filesize) + " bytes)"
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