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CREATE TABLE users(
id SERIAL NOT NULL,
email text NOT NULL,
password text NOT NULL,
name text NULL,
address text NULL,
notification_token text NULL,
is_admin boolean default false,
PRIMARY KEY (id)
);
CREATE TYPE moving_activity AS ENUM ('InVehicle', 'Running', 'Walking', 'Still');
CREATE TABLE positions(
id SERIAL NOT NULL,
user_id INTEGER NOT NULL,
created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
location GEOGRAPHY(Point, 4326) NOT NULL,
activity moving_activity NOT NULL,
PRIMARY KEY(id),
CONSTRAINT fk_users_id
FOREIGN KEY(user_id) REFERENCES users(id)
ON DELETE CASCADE,
CONSTRAINT unique_user_position UNIQUE(user_id)
);
CREATE TYPE level_alert AS ENUM ('One', 'Two', 'Three');
CREATE TABLE alerts(
id SERIAL NOT NULL,
user_id INTEGER NOT NULL,
created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
area GEOMETRY(Polygon, 4326),
text1 text NOT NULL,
text2 text NOT NULL,
text3 text NOT NULL,
reached_users INTEGER DEFAULT 0 NOT NULL,
PRIMARY KEY(id),
CONSTRAINT fk_users_id
FOREIGN KEY(user_id) REFERENCES users(id)
ON DELETE CASCADE
);
CREATE TABLE notifications(
id SERIAL NOT NULL,
alert_id INTEGER NOT NULL,
user_id INTEGER NOT NULL,
location GEOGRAPHY(Point, 4326) NOT NULL,
activity moving_activity NOT NULL,
seen BOOLEAN DEFAULT false,
level level_alert NOT NULL,
created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
PRIMARY KEY(id),
CONSTRAINT fk_alerts_id
FOREIGN KEY(alert_id) REFERENCES alerts(id)
ON DELETE CASCADE,
CONSTRAINT fk_users_id
FOREIGN KEY(user_id) REFERENCES users(id)
ON DELETE CASCADE
);
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