Add signal database schema

db/migrations/00080_signal.sql

@@ -0,0 +1,37 @@
+-- +goose Up
+CREATE TYPE SignalType AS ENUM (
+	'flyover.pool',
+	'plan.followup',
+	'publicreport.water',
+	'publicreport.nuisance',
+	'residual.exiring',
+	'surveillance.observation',
+	'trap.spike'
+);
+CREATE TYPE MosquitoSpecies AS ENUM (
+	'aedes aegypti',
+	'aedes albopictus',
+	'culex pipiens',
+	'culex tarsalis'
+);
+CREATE TABLE signal (
+	addressed TIMESTAMP WITHOUT TIME ZONE,
+	addressor INTEGER REFERENCES user_(id),
+	created TIMESTAMP WITHOUT TIME ZONE NOT NULL,
+	creator INTEGER NOT NULL REFERENCES user_(id),
+	id SERIAL NOT NULL,
+	organization_id INTEGER NOT NULL REFERENCES organization(id),
+	species MosquitoSpecies,
+	title TEXT NOT NULL,
+	type_ SignalType NOT NULL,
+	PRIMARY KEY(id)
+);
+CREATE TABLE signal_pool (
+	pool_id INTEGER NOT NULL REFERENCES pool(id),
+	signal_id INTEGER NOT NULL REFERENCES signal(id)
+);
+-- +goose Down
+DROP TABLE signal_pool;
+DROP TABLE signal;
+DROP TYPE MosquitoSpecies;
+DROP TYPE SignalType;