mirror of https://github.com/zulip/zulip.git
99 lines
3.6 KiB
Python
99 lines
3.6 KiB
Python
import django.db.models.deletion
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import django.utils.timezone
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from django.conf import settings
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from django.db import migrations, models
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from zerver.lib.migrate import rename_indexes_constraints
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class Migration(migrations.Migration):
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"""
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First step of migrating to a new UserPresence data model. Creates a new
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table with the intended fields, into which in the next step
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data can be ported over from the current UserPresence model.
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In the last step, the old model will be replaced with the new one.
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"""
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dependencies = [
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("zerver", "0442_remove_realmfilter_url_format_string"),
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]
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operations = [
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# Django doesn't rename indexes and constraints when renaming
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# a table (https://code.djangoproject.com/ticket/23577). This
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# means that after renaming UserPresence->UserPresenceOld the
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# UserPresenceOld indexes/constraints retain their old name
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# causing a conflict when CreateModel tries to create them for
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# the new UserPresence table.
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migrations.SeparateDatabaseAndState(
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database_operations=[
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migrations.RunPython(
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rename_indexes_constraints("zerver_userpresence", "zerver_userpresenceold"),
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reverse_code=rename_indexes_constraints(
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"zerver_userpresenceold", "zerver_userpresence"
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),
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)
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],
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state_operations=[
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migrations.RenameModel(
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old_name="UserPresence",
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new_name="UserPresenceOld",
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),
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migrations.RenameIndex(
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model_name="userpresenceold",
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old_name="zerver_userpresence_realm_id_timestamp_25f410da_idx",
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new_name="zerver_userpresenceold_realm_id_timestamp_52ef5fd3_idx",
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),
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],
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),
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migrations.CreateModel(
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name="UserPresence",
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fields=[
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(
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"id",
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models.AutoField(
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auto_created=True, primary_key=True, serialize=False, verbose_name="ID"
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),
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),
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(
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"last_connected_time",
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models.DateTimeField(
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db_index=True, default=django.utils.timezone.now, null=True
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),
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),
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(
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"last_active_time",
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models.DateTimeField(
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db_index=True, default=django.utils.timezone.now, null=True
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),
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),
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(
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"realm",
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models.ForeignKey(
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on_delete=django.db.models.deletion.CASCADE, to="zerver.Realm"
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),
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),
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(
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"user_profile",
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models.OneToOneField(
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on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL
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),
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),
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],
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),
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migrations.AddIndex(
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model_name="userpresence",
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index=models.Index(
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fields=["realm", "last_active_time"],
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name="zerver_userpresence_realm_id_last_active_time_1c5aa9a2_idx",
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),
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),
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migrations.AddIndex(
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model_name="userpresence",
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index=models.Index(
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fields=["realm", "last_connected_time"],
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name="zerver_userpresence_realm_id_last_connected_time_98d2fc9f_idx",
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),
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),
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]
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