from pathlib import Path from urllib.parse import urljoin from django.db import models from django.urls import reverse import settings from troggle.core.models.troggle import Expedition, TroggleModel """The model declarations LogBookEntry, PersonLogEntry, QM """ todo = """ - Can we rewrite things to eliminate the CaveSlug and objects? No Surely foreign keys work fine ?! No Foreign keys do not allow for there being multiple ways to refer to a cave, eg 1623-1999-03 aka 1623-204 Having slugs allows for much more loose coupling to caves, which removes alot of the need to reset the database, which interupts work flow. It also means we do not have to be creating temporary cave objects in the database, where we do not have the underlying file in cave_data. To Do move Cave Slug back to troggle.core.models """ class CaveSlug(models.Model): """Moved here to avoid nasty cyclic import error CASCADE means that if the Cave is deleted, this is too """ cave = models.ForeignKey("Cave", on_delete=models.CASCADE) slug = models.SlugField(max_length=50, unique=True) primary = models.BooleanField(default=False) def __str__(self): return f"{self.slug}: {self.cave}" class LogbookEntry(TroggleModel): """Single parsed entry from Logbook Gets deleted if the Expedition gets deleted""" date = ( models.DateField() ) # MJG wants to turn this into a datetime such that multiple Logbook entries on the same day can be ordered.ld() expedition = models.ForeignKey(Expedition, blank=True, null=True, on_delete=models.CASCADE) # yes this is double- title = models.CharField(max_length=200) cave_slug = models.SlugField(max_length=50, blank=True, null=True) place = models.CharField( max_length=100, blank=True, null=True, help_text="Only use this if you haven't chosen a cave" ) text = models.TextField() slug = models.SlugField(max_length=50) time_underground = models.FloatField(null=True, help_text="In decimal hours") class Meta: verbose_name_plural = "Logbook Entries" # several PersonLogEntrys point in to this object ordering = ("-date",) def cave(self): # Why didn't he just make this a foreign key to Cave ? c = CaveSlug.objects.get(slug=self.cave_slug, primary=True).cave return c def isLogbookEntry(self): # Function used in templates return True def get_absolute_url(self): return urljoin(settings.URL_ROOT, reverse("logbookentry", kwargs={"date": self.date, "slug": self.slug})) def __str__(self): return f"{self.date}: {self.title}" def get_next_by_id(self): LogbookEntry.objects.get(id=self.id + 1) def get_previous_by_id(self): LogbookEntry.objects.get(id=self.id - 1) def DayIndex(self): """This is used to set different colours for the different trips on the calendar view of the expedition""" mx = 10 todays = list(LogbookEntry.objects.filter(date=self.date)) if self in todays: index = todays.index(self) else: print(f"DayIndex: Synchronization error in logbook entries. Restart server or do full reset. {self}") index = 0 if index not in range(0, mx): print(f"DayIndex: More than {mx-1} LogbookEntry items on one day '{index}' {self}, restarting colour sequence.") index = index % mx return index class PersonLogEntry(TroggleModel): """Single Person going on a trip, which may or may not be written up. It could account for different T/U for people in same logbook entry. CASCADE means that if the personexpedition or the logbookentry is deleted, then this PersonLogEntry is deleted too """ personexpedition = models.ForeignKey("PersonExpedition", null=True, on_delete=models.CASCADE) time_underground = models.FloatField(help_text="In decimal hours") logbook_entry = models.ForeignKey(LogbookEntry, on_delete=models.CASCADE) is_logbook_entry_author = models.BooleanField(default=False) class Meta: ordering = ("-personexpedition",) # order_with_respect_to = 'personexpedition' def next_personlog(self): futurePTs = ( PersonLogEntry.objects.filter( personexpedition=self.personexpedition, logbook_entry__date__gt=self.logbook_entry.date ) .order_by("logbook_entry__date") .all() ) if len(futurePTs) > 0: return futurePTs[0] else: return None def prev_personlog(self): pastPTs = ( PersonLogEntry.objects.filter( personexpedition=self.personexpedition, logbook_entry__date__lt=self.logbook_entry.date ) .order_by("-logbook_entry__date") .all() ) if len(pastPTs) > 0: return pastPTs[0] else: return None def place(self): return self.logbook_entry.cave and self.logbook_entry.cave or self.logbook_entry.place def __str__(self): return f"{self.personexpedition} ({self.logbook_entry.date})" class QM(TroggleModel): """This is based on qm.csv in trunk/expoweb/1623/204 which has the fields: "Number","Grade","Area","Description","Page reference","Nearest station","Completion description","Comment" All the stuff handling TICK QMs is INCOMPLETE """ number = models.IntegerField( help_text="this is the sequential number in the year, only unique for CSV imports", ) grade = models.CharField(max_length=1, blank=True, null=True, help_text="A/B/C/D/X") cave = models.ForeignKey("Cave", related_name="QMs", blank=True, null=True, on_delete=models.SET_NULL) block = models.ForeignKey("SurvexBlock", null=True, on_delete=models.SET_NULL) # only for QMs from survex files blockname = models.TextField(blank=True, null=True) # NB truncated copy of survexblock name with last char added expoyear = models.CharField(max_length=4, blank=True, null=True) ticked = models.BooleanField(default=False) location_description = models.TextField(blank=True, null=True) completion_description = models.TextField(blank=True, null=True) completion_date = models.DateField(blank=True, null=True) nearest_station_name = models.CharField(max_length=200, blank=True, null=True) resolution_station_name = models.CharField(max_length=200, blank=True, null=True) area = models.CharField(max_length=100, blank=True, null=True) page_ref = models.TextField(blank=True, null=True) comment = models.TextField(blank=True, null=True) def __str__(self): return f"{self.code()}" def code(self): if self.cave: cavestr = str(self.cave.slug())[5:] else: cavestr = "" if self.expoyear: expoyearstr = str(self.expoyear) else: expoyearstr = str(self.cave.slug())[5:9] if self.blockname: blocknamestr = "-" + str(self.blockname) else: blocknamestr = "" return f"{cavestr}-{expoyearstr}-{self.number}{self.grade}{blocknamestr}" # def get_completion_url(self): # """assumes html file named is in same folder as cave description file # WRONG - needs rewriting!""" # cd = None # if self.completion_description: # try: # dir = Path(self.cave.url).parent # cd = dir / self.completion_description # except: # cd = None # return cd def newslug(self): qmslug = f"{str(self.cave)}-{self.expoyear}-{self.blockname}{self.number}{self.grade}" return qmslug def get_absolute_url(self): # This reverse resolution stuff is pure magic. Just change the regex in urls.py and everything changes to suit. Whacky. return urljoin( settings.URL_ROOT, reverse( "qm", kwargs={ "cave_id": self.cave.slug(), "year": self.expoyear, "blockname": self.blockname, "qm_id": self.number, "grade": self.grade, }, ), ) def get_next_by_id(self): # called in template return QM.objects.get(id=self.id + 1) def get_previous_by_id(self): # called in template return QM.objects.get(id=self.id - 1)