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authorPhilip Sargent <philip.sargent@klebos.com>2021-04-13 00:43:57 +0100
committerPhilip Sargent <philip.sargent@klebos.com>2021-04-13 00:43:57 +0100
commit5b3b0e67e9744671fadeca78e5565d3dbd1f81c1 (patch)
tree0b6b9e52d023567bc1e92878ce43a0b7b2fada26 /core/models.py
parent304bbd230a1b801069cfce259c6ad0f25d48116c (diff)
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create core/models/ directroy
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-import string
-import os
-import datetime
-import logging
-import re
-import resource
-from subprocess import call
-
-from urllib.parse import urljoin
-from decimal import Decimal, getcontext
-getcontext().prec=2 #use 2 significant figures for decimal calculations
-
-import settings
-
-from django.db import models
-from django.contrib import admin
-from django.contrib.auth.models import User
-from django.contrib.contenttypes.models import ContentType
-from django.conf import settings
-
-from django.urls import reverse
-from django.template import Context, loader
-
-import troggle.core.models_survex
-from troggle.core.utils import get_process_memory
-
-"""This file declares TroggleModel which inherits from django.db.models.Model
-All TroggleModel subclasses inherit persistence in the django relational database. This is known as
-the django Object Relational Mapping (ORM).
-There are more subclasses define in models_caves.py models_survex.py etc.
-"""
-
-
-#This class is for adding fields and methods which all of our models will have.
-class TroggleModel(models.Model):
- new_since_parsing = models.BooleanField(default=False, editable=False)
- non_public = models.BooleanField(default=False)
- def object_name(self):
- return self._meta.object_name
-
- def get_admin_url(self):
- return urljoin(settings.URL_ROOT, "/admin/core/" + self.object_name().lower() + "/" + str(self.pk))
-
- class Meta:
- abstract = True
-
-class DataIssue(TroggleModel):
- """When importing cave data any validation problems produce a message which is
- recorded as a DataIssue. The django admin system automatically prodiuces a page listing
- these at /admin/core/dataissue/
- This is a use of the NOTIFICATION pattern:
- https://martinfowler.com/eaaDev/Notification.html
-
- And we need to use it to replace all assertions in the code too:
- https://martinfowler.com/articles/replaceThrowWithNotification.html
- """
- date = models.DateTimeField(auto_now_add=True, blank=True)
- parser = models.CharField(max_length=50, blank=True, null=True)
- message = models.CharField(max_length=400, blank=True, null=True)
- url = models.CharField(max_length=300, blank=True, null=True) # link to offending object
-
- class Meta:
- ordering = ['date']
-
- def __str__(self):
- return "%s - %s" % (self.parser, self.message)
-
-#
-# single Expedition, usually seen by year
-#
-class Expedition(TroggleModel):
- year = models.CharField(max_length=20, unique=True)
- name = models.CharField(max_length=100)
-
- def __str__(self):
- return self.year
-
- class Meta:
- ordering = ('-year',)
- get_latest_by = 'year'
-
- def get_absolute_url(self):
- return urljoin(settings.URL_ROOT, reverse('expedition', args=[self.year]))
-
- # construction function. should be moved out
- def get_expedition_day(self, date):
- expeditiondays = self.expeditionday_set.filter(date=date)
- if expeditiondays:
- if len(expeditiondays) == 1:
- return expeditiondays[0]
- else:
- message ='! - more than one datum in an expeditionday: {}'.format(date)
- DataIssue.objects.create(parser='expedition', message=message)
- return expeditiondays[0]
- res = ExpeditionDay(expedition=self, date=date)
- res.save()
- return res
-
- def day_min(self):
- res = self.expeditionday_set.all()
- return res and res[0] or None
-
- def day_max(self):
- res = self.expeditionday_set.all()
- return res and res[len(res) - 1] or None
-
-class ExpeditionDay(TroggleModel):
- expedition = models.ForeignKey("Expedition",on_delete=models.CASCADE)
- date = models.DateField()
-
- class Meta:
- ordering = ('date',)
-
- def GetPersonTrip(self, personexpedition):
- personexpeditions = self.persontrip_set.filter(expeditionday=self)
- return personexpeditions and personexpeditions[0] or None
-
-class Person(TroggleModel):
- """single Person, can go on many years
- """
- first_name = models.CharField(max_length=100)
- last_name = models.CharField(max_length=100)
- fullname = models.CharField(max_length=200)
- is_vfho = models.BooleanField(help_text="VFHO is the Vereines f&uuml;r H&ouml;hlenkunde in Obersteier, a nearby Austrian caving club.", default=False)
- mug_shot = models.CharField(max_length=100, blank=True,null=True)
- blurb = models.TextField(blank=True,null=True)
-
- #href = models.CharField(max_length=200)
- orderref = models.CharField(max_length=200) # for alphabetic
- user = models.OneToOneField(User, null=True, blank=True,on_delete=models.CASCADE)
- def get_absolute_url(self):
- return urljoin(settings.URL_ROOT,reverse('person',kwargs={'first_name':self.first_name,'last_name':self.last_name}))
-
- class Meta:
- verbose_name_plural = "People"
- ordering = ('orderref',) # "Wookey" makes too complex for: ('last_name', 'first_name')
-
- def __str__(self):
- if self.last_name:
- return "%s %s" % (self.first_name, self.last_name)
- return self.first_name
-
-
- def notability(self):
- notability = Decimal(0)
- max_expo_val = 0
-
- max_expo_year = Expedition.objects.all().aggregate(models.Max('year'))
- max_expo_val = int(max_expo_year['year__max']) + 1
-
- for personexpedition in self.personexpedition_set.all():
- if not personexpedition.is_guest:
- notability += Decimal(1) / (max_expo_val - int(personexpedition.expedition.year))
- return notability
-
- def bisnotable(self):
- return self.notability() > Decimal(1)/Decimal(3)
-
- def surveyedleglength(self):
- return sum([personexpedition.surveyedleglength() for personexpedition in self.personexpedition_set.all()])
-
- def first(self):
- return self.personexpedition_set.order_by('-expedition')[0]
- def last(self):
- return self.personexpedition_set.order_by('expedition')[0]
-
-class PersonExpedition(TroggleModel):
- """Person's attendance to one Expo
- """
- expedition = models.ForeignKey(Expedition,on_delete=models.CASCADE)
- person = models.ForeignKey(Person,on_delete=models.CASCADE)
- slugfield = models.SlugField(max_length=50,blank=True, null=True)
-
- is_guest = models.BooleanField(default=False)
- COMMITTEE_CHOICES = (
- ('leader','Expo leader'),
- ('medical','Expo medical officer'),
- ('treasurer','Expo treasurer'),
- ('sponsorship','Expo sponsorship coordinator'),
- ('research','Expo research coordinator'),
- )
- expo_committee_position = models.CharField(blank=True,null=True,choices=COMMITTEE_CHOICES,max_length=200)
- nickname = models.CharField(max_length=100,blank=True, null=True)
-
- def GetPersonroles(self):
- res = [ ]
- for personrole in self.personrole_set.order_by('survexblock'):
- if res and res[-1]['survexpath'] == personrole.survexblock.survexpath:
- res[-1]['roles'] += ", " + str(personrole.role)
- else:
- res.append({'date':personrole.survexblock.date, 'survexpath':personrole.survexblock.survexpath, 'roles':str(personrole.role)})
- return res
-
- class Meta:
- ordering = ('-expedition',)
- #order_with_respect_to = 'expedition'
-
- def __str__(self):
- return "%s: (%s)" % (self.person, self.expedition)
-
- #why is the below a function in personexpedition, rather than in person? - AC 14 Feb 09
- def name(self):
- if self.nickname:
- return "%s (%s) %s" % (self.person.first_name, self.nickname, self.person.last_name)
- if self.person.last_name:
- return "%s %s" % (self.person.first_name, self.person.last_name)
- return self.person.first_name
-
- def get_absolute_url(self):
- return urljoin(settings.URL_ROOT, reverse('personexpedition',kwargs={'first_name':self.person.first_name,'last_name':self.person.last_name,'year':self.expedition.year}))
-
- def surveyedleglength(self):
- survexblocks = [personrole.survexblock for personrole in self.survexpersonrole_set.all() ]
- return sum([survexblock.legslength for survexblock in set(survexblocks)])
-
- # would prefer to return actual person trips so we could link to first and last ones
- def day_min(self):
- res = self.persontrip_set.aggregate(day_min=Min("expeditionday__date"))
- return res["day_min"]
-
- def day_max(self):
- res = self.persontrip_set.all().aggregate(day_max=models.Max("expeditionday__date"))
- return res["day_max"]
-
-