mirror of
https://github.com/ferdzo/iotDashboard.git
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65 lines
2.0 KiB
Python
65 lines
2.0 KiB
Python
"""Initial
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Revision ID: dae12d7f4ddf
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Revises:
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Create Date: 2025-10-28 22:06:45.637836+00:00
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"""
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from typing import Sequence, Union
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from alembic import op
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import sqlalchemy as sa
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# revision identifiers, used by Alembic.
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revision: str = "dae12d7f4ddf"
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down_revision: Union[str, Sequence[str], None] = None
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branch_labels: Union[str, Sequence[str], None] = None
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depends_on: Union[str, Sequence[str], None] = None
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def upgrade() -> None:
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"""Upgrade schema."""
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# ### commands auto generated by Alembic - please adjust! ###
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op.create_table(
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"devices",
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sa.Column("id", sa.Text(), nullable=False),
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sa.Column("name", sa.Text(), nullable=False),
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sa.Column("location", sa.Text(), nullable=True),
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sa.Column("is_active", sa.Boolean(), nullable=True),
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sa.PrimaryKeyConstraint("id"),
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)
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op.create_table(
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"telemetry",
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sa.Column("time", sa.DateTime(timezone=True), nullable=False),
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sa.Column("device_id", sa.Text(), nullable=False),
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sa.Column("metric", sa.Text(), nullable=False),
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sa.Column("value", sa.Float(), nullable=False),
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sa.Column("unit", sa.Text(), nullable=True),
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sa.ForeignKeyConstraint(
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["device_id"],
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["devices.id"],
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),
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sa.PrimaryKeyConstraint("time", "device_id", "metric"),
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)
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op.create_index(
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"idx_telemetry_device_time", "telemetry", ["device_id", "time"], unique=False
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)
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# Convert telemetry table to TimescaleDB hypertable
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op.execute("SELECT create_hypertable('telemetry', 'time', if_not_exists => TRUE);")
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# ### end Alembic commands ###
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def downgrade() -> None:
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"""Downgrade schema."""
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# ### commands auto generated by Alembic - please adjust! ###
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# Note: TimescaleDB hypertables cannot be easily converted back to regular tables
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# The table will be dropped entirely, which removes the hypertable as well
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op.drop_index("idx_telemetry_device_time", table_name="telemetry")
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op.drop_table("telemetry")
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op.drop_table("devices")
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# ### end Alembic commands ###
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