mirror of https://github.com/zulip/zulip.git
140 lines
4.6 KiB
Python
140 lines
4.6 KiB
Python
import datetime
|
|
|
|
from django.db import models
|
|
from django.db.models import Q, UniqueConstraint
|
|
|
|
from zerver.lib.timestamp import floor_to_day
|
|
from zerver.models import Realm, Stream, UserProfile
|
|
|
|
|
|
class FillState(models.Model):
|
|
property = models.CharField(max_length=40, unique=True)
|
|
end_time = models.DateTimeField()
|
|
|
|
# Valid states are {DONE, STARTED}
|
|
DONE = 1
|
|
STARTED = 2
|
|
state = models.PositiveSmallIntegerField()
|
|
|
|
def __str__(self) -> str:
|
|
return f"<FillState: {self.property} {self.end_time} {self.state}>"
|
|
|
|
|
|
# The earliest/starting end_time in FillState
|
|
# We assume there is at least one realm
|
|
def installation_epoch() -> datetime.datetime:
|
|
earliest_realm_creation = Realm.objects.aggregate(models.Min("date_created"))[
|
|
"date_created__min"
|
|
]
|
|
return floor_to_day(earliest_realm_creation)
|
|
|
|
|
|
class BaseCount(models.Model):
|
|
# Note: When inheriting from BaseCount, you may want to rearrange
|
|
# the order of the columns in the migration to make sure they
|
|
# match how you'd like the table to be arranged.
|
|
property = models.CharField(max_length=32)
|
|
subgroup = models.CharField(max_length=16, null=True)
|
|
end_time = models.DateTimeField()
|
|
value = models.BigIntegerField()
|
|
|
|
class Meta:
|
|
abstract = True
|
|
|
|
|
|
class InstallationCount(BaseCount):
|
|
class Meta:
|
|
# Handles invalid duplicate InstallationCount data
|
|
constraints = [
|
|
UniqueConstraint(
|
|
fields=["property", "subgroup", "end_time"],
|
|
condition=Q(subgroup__isnull=False),
|
|
name="unique_installation_count",
|
|
),
|
|
UniqueConstraint(
|
|
fields=["property", "end_time"],
|
|
condition=Q(subgroup__isnull=True),
|
|
name="unique_installation_count_null_subgroup",
|
|
),
|
|
]
|
|
|
|
def __str__(self) -> str:
|
|
return f"<InstallationCount: {self.property} {self.subgroup} {self.value}>"
|
|
|
|
|
|
class RealmCount(BaseCount):
|
|
realm = models.ForeignKey(Realm, on_delete=models.CASCADE)
|
|
|
|
class Meta:
|
|
# Handles invalid duplicate RealmCount data
|
|
constraints = [
|
|
UniqueConstraint(
|
|
fields=["realm", "property", "subgroup", "end_time"],
|
|
condition=Q(subgroup__isnull=False),
|
|
name="unique_realm_count",
|
|
),
|
|
UniqueConstraint(
|
|
fields=["realm", "property", "end_time"],
|
|
condition=Q(subgroup__isnull=True),
|
|
name="unique_realm_count_null_subgroup",
|
|
),
|
|
]
|
|
index_together = ["property", "end_time"]
|
|
|
|
def __str__(self) -> str:
|
|
return f"<RealmCount: {self.realm} {self.property} {self.subgroup} {self.value}>"
|
|
|
|
|
|
class UserCount(BaseCount):
|
|
user = models.ForeignKey(UserProfile, on_delete=models.CASCADE)
|
|
realm = models.ForeignKey(Realm, on_delete=models.CASCADE)
|
|
|
|
class Meta:
|
|
# Handles invalid duplicate UserCount data
|
|
constraints = [
|
|
UniqueConstraint(
|
|
fields=["user", "property", "subgroup", "end_time"],
|
|
condition=Q(subgroup__isnull=False),
|
|
name="unique_user_count",
|
|
),
|
|
UniqueConstraint(
|
|
fields=["user", "property", "end_time"],
|
|
condition=Q(subgroup__isnull=True),
|
|
name="unique_user_count_null_subgroup",
|
|
),
|
|
]
|
|
# This index dramatically improves the performance of
|
|
# aggregating from users to realms
|
|
index_together = ["property", "realm", "end_time"]
|
|
|
|
def __str__(self) -> str:
|
|
return f"<UserCount: {self.user} {self.property} {self.subgroup} {self.value}>"
|
|
|
|
|
|
class StreamCount(BaseCount):
|
|
stream = models.ForeignKey(Stream, on_delete=models.CASCADE)
|
|
realm = models.ForeignKey(Realm, on_delete=models.CASCADE)
|
|
|
|
class Meta:
|
|
# Handles invalid duplicate StreamCount data
|
|
constraints = [
|
|
UniqueConstraint(
|
|
fields=["stream", "property", "subgroup", "end_time"],
|
|
condition=Q(subgroup__isnull=False),
|
|
name="unique_stream_count",
|
|
),
|
|
UniqueConstraint(
|
|
fields=["stream", "property", "end_time"],
|
|
condition=Q(subgroup__isnull=True),
|
|
name="unique_stream_count_null_subgroup",
|
|
),
|
|
]
|
|
# This index dramatically improves the performance of
|
|
# aggregating from streams to realms
|
|
index_together = ["property", "realm", "end_time"]
|
|
|
|
def __str__(self) -> str:
|
|
return (
|
|
f"<StreamCount: {self.stream} {self.property} {self.subgroup} {self.value} {self.id}>"
|
|
)
|