a71df2af29
- Migration 033 creates wireless_links with state machine, missed_polls, RLS - WirelessLink model with LinkState enum (discovered/active/degraded/down/stale) - Register DeviceInterface, WirelessLink, LinkState in models __init__ Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
110 lines
3.7 KiB
Python
110 lines
3.7 KiB
Python
"""Create wireless_links table for AP-CPE link state tracking.
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Revision ID: 033
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Revises: 032
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Create Date: 2026-03-19
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Stores discovered wireless links between AP and CPE devices with
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state machine columns for link health tracking (discovered -> active ->
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degraded -> down -> stale).
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"""
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import sqlalchemy as sa
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from alembic import op
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revision = "033"
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down_revision = "032"
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branch_labels = None
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depends_on = None
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def upgrade() -> None:
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op.create_table(
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"wireless_links",
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sa.Column(
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"id",
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sa.dialects.postgresql.UUID(as_uuid=True),
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primary_key=True,
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server_default=sa.text("gen_random_uuid()"),
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),
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sa.Column(
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"ap_device_id",
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sa.dialects.postgresql.UUID(as_uuid=True),
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sa.ForeignKey("devices.id", ondelete="CASCADE"),
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nullable=False,
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),
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sa.Column(
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"cpe_device_id",
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sa.dialects.postgresql.UUID(as_uuid=True),
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sa.ForeignKey("devices.id", ondelete="CASCADE"),
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nullable=False,
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),
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sa.Column(
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"tenant_id",
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sa.dialects.postgresql.UUID(as_uuid=True),
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sa.ForeignKey("tenants.id", ondelete="CASCADE"),
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nullable=False,
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),
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sa.Column("interface", sa.String(255), nullable=True),
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sa.Column("client_mac", sa.String(17), nullable=False),
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sa.Column("signal_strength", sa.Integer, nullable=True),
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sa.Column("tx_ccq", sa.Integer, nullable=True),
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sa.Column("tx_rate", sa.String(50), nullable=True),
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sa.Column("rx_rate", sa.String(50), nullable=True),
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sa.Column(
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"state",
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sa.String(20),
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nullable=False,
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server_default=sa.text("'discovered'"),
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),
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sa.Column("missed_polls", sa.Integer, nullable=False, server_default=sa.text("0")),
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sa.Column(
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"discovered_at",
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sa.DateTime(timezone=True),
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server_default=sa.func.now(),
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nullable=False,
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),
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sa.Column(
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"last_seen",
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sa.DateTime(timezone=True),
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server_default=sa.func.now(),
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nullable=False,
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),
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sa.Column(
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"updated_at",
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sa.DateTime(timezone=True),
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server_default=sa.func.now(),
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nullable=False,
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),
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sa.UniqueConstraint("ap_device_id", "cpe_device_id", name="uq_wireless_links_ap_cpe"),
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)
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op.create_index("idx_wireless_links_ap", "wireless_links", ["ap_device_id"])
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op.create_index("idx_wireless_links_cpe", "wireless_links", ["cpe_device_id"])
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op.create_index("idx_wireless_links_tenant_state", "wireless_links", ["tenant_id", "state"])
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op.create_index("idx_wireless_links_client_mac", "wireless_links", ["client_mac"])
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# Enable RLS with tenant isolation policy
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conn = op.get_bind()
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conn.execute(sa.text("ALTER TABLE wireless_links ENABLE ROW LEVEL SECURITY"))
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conn.execute(sa.text("ALTER TABLE wireless_links FORCE ROW LEVEL SECURITY"))
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conn.execute(
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sa.text("""
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CREATE POLICY tenant_isolation ON wireless_links
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USING (
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tenant_id::text = current_setting('app.current_tenant', true)
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OR current_setting('app.current_tenant', true) = 'super_admin'
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)
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WITH CHECK (
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tenant_id::text = current_setting('app.current_tenant', true)
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OR current_setting('app.current_tenant', true) = 'super_admin'
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)
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""")
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)
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def downgrade() -> None:
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conn = op.get_bind()
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conn.execute(sa.text("DROP POLICY IF EXISTS tenant_isolation ON wireless_links"))
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op.drop_table("wireless_links")
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