mappa-ricezione-radio/rxmap/rxmapp/models.py

from django.db import models
from django.urls import reverse
from datetime import datetime
from django.contrib.auth.models import AbstractUser

# Create your models here.
class User(AbstractUser):
    @property
    def display_name(self):
        name = "%s %s" % (self.first_name, self.last_name)
        if name:
            return name
        return self.username


class TipoRadio(models.Model):
    class Meta:
        verbose_name = "tipo radio"
        verbose_name_plural = "tipi radio"

    nome = models.CharField(max_length=64, unique=True)
    descrizione = models.CharField(max_length=1000)

    def __str__(self):
        return self.nome


class RapportoRicezione(models.Model):
    class Meta:
        verbose_name = "rapporto ricezione"
        verbose_name_plural = "rapporti ricezione"

    author = models.ForeignKey(User, related_name="rapporti", on_delete=models.PROTECT)
    tipo_radio = models.ForeignKey(
        TipoRadio, on_delete=models.PROTECT, related_name="rapporti"
    )

    created = models.DateField(default=datetime.now)

    lat = models.FloatField()
    lng = models.FloatField()
    indirizzo = models.CharField(default='', max_length=400,
                                 help_text='Indirizzo indicativo. Usato solo per descrizione. '
                                 'Per piazzare il marcatore vengono usate solo le coordinate')

    comprensibile = models.IntegerField()  # TODO: >= 0 <= 5
    stabilita = models.IntegerField()  # TODO: >= 0 <= 5

    def serialize(self):
        d = {k: v for k, v in self.__dict__.items() if not k.startswith("_")}
        d["id"] = self.id
        d["colore"] = self.colore
        d["radius"] = self.radius
        d["explaination"] = self.explaination
        return d

    @property
    def colore(self):
        colors = ["darkred", "red", "yellow", "orange", "#90c90d", "green"]
        c = int(self.comprensibile)
        return colors[c]

    @property
    def radius(self):
        return int(self.stabilita) * 70

    @property
    def explaination(self):
        return """
        Ricevuto con %s
        Aggiunto il %s da %s
        """ % (
            self.tipo_radio.nome,
            self.created,
            self.author.display_name,
        )

    @property
    def edit_link(self):
        return reverse(
            "admin:rxmapp_rapportoricezione_change", kwargs=dict(object_id=self.id)
        )

    def __str__(self):
        if self.indirizzo:
            return self.indirizzo
        return "<Rapporto %s del %s>" % (self.pk, self.created)