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import os
from urllib.parse import urljoin
import re
from django.db import models
from django.conf import settings
from django.urls import reverse
class SurvexDirectory(models.Model):
path = models.CharField(max_length=200)
cave = models.ForeignKey('Cave', blank=True, null=True,on_delete=models.CASCADE)
primarysurvexfile = models.ForeignKey('SurvexFile', related_name='primarysurvexfile', blank=True, null=True,on_delete=models.CASCADE)
# could also include files in directory but not referenced
class Meta:
ordering = ('id',)
class SurvexFile(models.Model):
path = models.CharField(max_length=200)
survexdirectory = models.ForeignKey("SurvexDirectory", blank=True, null=True,on_delete=models.CASCADE)
cave = models.ForeignKey('Cave', blank=True, null=True,on_delete=models.CASCADE)
class Meta:
ordering = ('id',)
def exists(self):
fname = os.path.join(settings.SURVEX_DATA, self.path + ".svx")
return os.path.isfile(fname)
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]
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()
class SurvexStationLookUpManager(models.Manager):
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',on_delete=models.CASCADE)
# equate = models.ForeignKey('SurvexEquate', blank=True, null=True,on_delete=models.CASCADE)
objects = SurvexStationLookUpManager()
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
#
# Single SurvexBlock
#
class SurvexBlockLookUpManager(models.Manager):
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):
objects = SurvexBlockLookUpManager()
name = models.CharField(max_length=100)
parent = models.ForeignKey('SurvexBlock', blank=True, null=True,on_delete=models.CASCADE)
cave = models.ForeignKey('Cave', blank=True, null=True,on_delete=models.CASCADE)
date = models.DateField(blank=True, null=True)
expeditionday = models.ForeignKey("ExpeditionDay", null=True,on_delete=models.CASCADE)
expedition = models.ForeignKey('Expedition', blank=True, null=True,on_delete=models.CASCADE)
survexfile = models.ForeignKey("SurvexFile", blank=True, null=True,on_delete=models.CASCADE)
survexpath = models.CharField(max_length=200) # the path for the survex stations
scansfolder = models.ForeignKey("ScansFolder", null=True,on_delete=models.CASCADE)
legsall = models.IntegerField(null=True) # summary data for this block
legssplay = models.IntegerField(null=True) # summary data for this block
legssurfc = models.IntegerField(null=True) # summary data for this block
totalleglength = models.FloatField(null=True)
class Meta:
ordering = ('id',)
def isSurvexBlock(self): # Function used in templates
return True
def __str__(self):
return self.name and str(self.name) or 'no name'
def GetPersonroles(self):
res = [ ]
for personrole in self.personrole_set.order_by('personexpedition'):
if res and res[-1]['person'] == personrole.personexpedition.person:
res[-1]['roles'] += ", " + str(personrole.role)
else:
res.append({'person':personrole.personexpedition.person, 'expeditionyear':personrole.personexpedition.expedition.year, 'roles':str(personrole.role)})
return res
def DayIndex(self):
return list(self.expeditionday.survexblock_set.all()).index(self)
class SurvexTitle(models.Model):
survexblock = models.ForeignKey('SurvexBlock',on_delete=models.CASCADE)
title = models.CharField(max_length=200) # needed by svxcavesingle.html template
cave = models.ForeignKey('Cave', blank=True, null=True,on_delete=models.CASCADE)
#
# member of a SurvexBlock
#
ROLE_CHOICES = (
('insts','Instruments'),
('dog','Other'),
('notes','Notes'),
('pics','Pictures'),
('tape','Tape measure'),
('useless','Useless'),
('helper','Helper'),
('disto','Disto'),
('consultant','Consultant'),
)
class SurvexPersonRole(models.Model):
survexblock = models.ForeignKey('SurvexBlock',on_delete=models.CASCADE)
nrole = models.CharField(choices=ROLE_CHOICES, max_length=200, blank=True, null=True)
# increasing levels of precision
personname = models.CharField(max_length=100)
person = models.ForeignKey('Person', blank=True, null=True,on_delete=models.CASCADE)
personexpedition = models.ForeignKey('PersonExpedition', blank=True, null=True,on_delete=models.CASCADE)
persontrip = models.ForeignKey('PersonTrip', blank=True, null=True,on_delete=models.CASCADE)
expeditionday = models.ForeignKey("ExpeditionDay", null=True,on_delete=models.CASCADE)
def __str__(self):
return str(self.person) + " - " + str(self.survexblock) + " - " + str(self.nrole)
class ScansFolder(models.Model):
fpath = models.CharField(max_length=200)
walletname = models.CharField(max_length=200)
class Meta:
ordering = ('walletname',)
def get_absolute_url(self):
return urljoin(settings.URL_ROOT, reverse('surveyscansfolder', kwargs={"path":re.sub("#", "%23", self.walletname)}))
def __str__(self):
return str(self.walletname) + " (Survey Scans Folder)"
class SingleScan(models.Model):
ffile = models.CharField(max_length=200)
name = models.CharField(max_length=200)
scansfolder = models.ForeignKey("ScansFolder", null=True,on_delete=models.CASCADE)
class Meta:
ordering = ('name',)
def get_absolute_url(self):
return urljoin(settings.URL_ROOT, reverse('surveyscansingle', kwargs={"path":re.sub("#", "%23", self.scansfolder.walletname), "file":self.name}))
def __str__(self):
return "Survey Scan Image: " + str(self.name) + " in " + str(self.scansfolder)
class TunnelFile(models.Model):
tunnelpath = models.CharField(max_length=200)
tunnelname = models.CharField(max_length=200)
bfontcolours = models.BooleanField(default=False)
manyscansfolders = models.ManyToManyField("ScansFolder") # implicitly links to SVX files
scans = models.ManyToManyField("SingleScan") # implicitly links to SVX files
tunnelcontains = models.ManyToManyField("TunnelFile") # 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
class Meta:
ordering = ('tunnelpath',)
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