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2f4dd72076
APNs apparently treats its tokens case-insensitively; FCM does not. Adjust the `unique_together` to instead be separate partial constraints, keyed on the `kind` of the PushDeviceToken.
72 lines
2.6 KiB
Python
72 lines
2.6 KiB
Python
import django.db.models.functions.text
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from django.db import migrations, models
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class Migration(migrations.Migration):
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dependencies = [
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("zerver", "0739_alter_realm_can_set_delete_message_policy_group"),
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]
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operations = [
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# Update the last_updated to the max for any set of (user_id, kind=1, lower(token))
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migrations.RunSQL(
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"""
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WITH dups AS (
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SELECT user_id, kind, LOWER(token) AS token, MAX(last_updated) AS max_last_updated
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FROM zerver_pushdevicetoken
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WHERE kind = 1
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GROUP BY user_id, kind, LOWER(token)
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HAVING COUNT(*) > 1
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)
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UPDATE zerver_pushdevicetoken
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SET last_updated = dups.max_last_updated
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FROM dups
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WHERE zerver_pushdevicetoken.user_id = dups.user_id
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AND zerver_pushdevicetoken.kind = dups.kind
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AND LOWER(zerver_pushdevicetoken.token) = dups.token
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"""
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),
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# And then delete all but the first of each of those sets
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migrations.RunSQL(
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"""
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WITH dups AS (
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SELECT user_id, kind, LOWER(token) AS token, MIN(id) AS min_id
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FROM zerver_pushdevicetoken
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WHERE kind = 1
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GROUP BY user_id, kind, LOWER(token)
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HAVING COUNT(*) > 1
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)
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DELETE FROM zerver_pushdevicetoken
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USING dups
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WHERE zerver_pushdevicetoken.user_id = dups.user_id
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AND zerver_pushdevicetoken.kind = dups.kind
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AND LOWER(zerver_pushdevicetoken.token) = dups.token
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AND zerver_pushdevicetoken.id != dups.min_id
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"""
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),
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migrations.AddConstraint(
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model_name="pushdevicetoken",
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constraint=models.UniqueConstraint(
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models.F("user_id"),
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models.F("kind"),
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django.db.models.functions.text.Lower(models.F("token")),
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condition=models.Q(("kind", 1)),
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name="zerver_pushdevicetoken_apns_user_kind_token",
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),
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),
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migrations.AddConstraint(
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model_name="pushdevicetoken",
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constraint=models.UniqueConstraint(
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models.F("user_id"),
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models.F("kind"),
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models.F("token"),
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condition=models.Q(("kind", 2)),
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name="zerver_pushdevicetoken_fcm_user_kind_token",
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),
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),
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migrations.AlterUniqueTogether(
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name="pushdevicetoken",
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unique_together=set(),
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),
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]
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