I snapped many photos while wandering Haifa last week, as I always do whenever I see something new or interesting while exploring a city. I was with my friend Tyler, who conspicuously does not take photos while exploring a new place. I asked him why,...

1. Tagged with
2. travel
3. photography

• After a few months delay I went and got my annual health check. I was able to go to the same center as last time, too. I'm always amazed at the efficientcy of these places as each person is directed from station to station and the nurses/technicians do their thing.
  
  Despite my best efforts I gained a couple of kilos and my blood pressure was slightly up (with the state of the world how could it not 😅). It's time to cut out that snacking habit I've gotten into as of late and cut down portions at dinner.
• As Leo had a "forced" Tuesday off last week, since he wasn't sick, rather than be stressed at the house all day we went out and did our usual Monorail-Enoshima-Aquarium-Burger loop. He played the crane game with his own money once, but he didn't win anything, but he seemed satisfied.
  
  While we were walking to the Enoden after lunch, Leo decided he wanted some sweets from the coffee shop, so we dropped by Tully's as well. There's a great word in Japanese for exactly this situation, where you have room for dessert despite being full: betsu-bara. Betsu means separate/different and bara being stomach. It's the first time he's had dessert stomach that I can remember.
• There was a big earthquake last week around 11:30pm. It was certainly the biggest and longest quake I've felt in a while. Thankfully there wasn't any damage around here and it was mostly an annoyance because it kicks off your adrenaline, which is not helpful when you're trying to get back to sleep.
• I bought tickets for Disney next month during Leo's spring break. I've never been to Tokyo Disneyland, but I've been to Disney Sea twice.
  
  As a kid, we lived close enough that when we went to Disney it was just for the day, never staying at the hotels. And being honest, they were probably also out of budget, even if it wasn't so close. While we're still close enough here in Yokohama for a day-trip to Disney (trains rule), we're going to stay one night. I'm excited about it, not just because it's a surprise for Leo, but because I can do those family things I couldn't do myself growing up.
• Unrelated to health check results, but after skipping a week of running not on purpose I got back out and ran 5km. I always feel so much better after running, no matter how long I go out. I need to remind myself when the main obstacle is me changing clothes. Sometimes I can't run in the morning or don't want a tight lunch run. With the days starting to get longer, I wonder if I could do short post-work runs every now and again...

class Record(models.Model):
    record_type = models.CharField(max_length=12)
    
    @property
    def is_disco(self) -> bool:
        return self.record_type == "DISCO"

    @property
    def is_punk(self) -> bool:
        return self.record_type == "PUNK"

class Disco(models.Model):
    record = models.OneToOneField(Record, related_name="disco_record")
    bpm = models.IntegerField()


class Punk(models.Model):
    record = models.OneToOneField(Record, related_name="punk_record")
    max_chords = models.IntegerField()

class DiscoRecord(graphene_django.DjangoObjectType):
    class Meta:
        model = models.Record
    
    bpm = graphene.IntegerField(required=True)

    @classmethod
    def get_node(cls, info, id) -> models.Record:
        # Allow our object to be fetchable as a Relay Node
        return models.Record.objects.get(pk=id)
    
    def resolve_bpm(record: models.Record, **kwargs) -> int:
        return record.disco_record.bpm

class PunkRecord(graphene_django.DjangoObjectType):
    class Meta:
        model = models.Record
    
    max_chords = graphene.IntegerField(required=True)
    
    @classmethod
    def get_node(cls, info, id) -> models.Record:
        # Allow our object to be fetchable as a Relay Node
        return models.Record.objects.get(pk=id)
    
    def resolve_max_chords(record: models.Record, **kwargs) -> int:
        return record.punk_record.max_chords


class Record(graphene.Union):
    class Meta:
        types = (DiscoRecord, PunkRecord)

    @classmethod
    def resolve_type(
        cls, instance: models.Record, info
    ) -> Union[Type[DiscoRecord], Type[PunkRecord]]:
        # Graphene is unable to accurately determine which type it should resolve without help
        # because the unioned types are all DjangoObjectTypes for the same Record class.
        if instance.is_disco:
            return DiscoRecord
        elif instance.is_punk:
            return PunkRecord
        raise ValueError("Unknown record type")

query {
    records {
        ... on DiscoRecord {
            bpm
        }
        ... on PunkRecord {
            maxChords
        }
    }
}

query {
    node(id: "fuga") {
        ... on DiscoRecord {
            bpm
        }
        ... on PunkRecord {
            maxChords
        }
    }
}

class DiscoRecord(graphene_django.DjangoObjectType):
    ...
    @classmethod
    def is_type_of(cls, root, info) -> bool:
        # When a DiscoRecord is resolved as a node it does not use the Union type
        # determine the object's type.
        # Only allow this type to be used with Disco records.
        if isinstance(root, models.Record):
            return root.is_disco
        return False

class PunkRecord(graphene_django.DjangoObjectType):
    ...
    @classmethod
    def is_type_of(cls, root, info) -> bool:
        # When a PunkRecord is resolved as a node it does not use the Union type
        # to determine the object's type.
        # Only allow this type to be used with Punk records.
        if isinstance(root, models.Record):
            return root.is_punk
        return False