152 lines
5.6 KiB
PL/PgSQL
152 lines
5.6 KiB
PL/PgSQL
DROP TABLE IF EXISTS devices CASCADE;
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DROP TABLE IF EXISTS sensors CASCADE;
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DROP TABLE IF EXISTS humidities CASCADE;
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DROP TABLE IF EXISTS pressures CASCADE;
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DROP TABLE IF EXISTS temperatures CASCADE;
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DROP TABLE IF EXISTS info CASCADE;
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-- +----------------------------------------+
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-- | TABLES |
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-- +----------------------------------------+
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CREATE TABLE IF NOT EXISTS devices(
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device_id CHAR(36) CONSTRAINT pk_devices PRIMARY KEY,
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device_name VARCHAR(32) NOT NULL,
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device_location VARCHAR(32),
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device_last_contact TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP NOT NULL,
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creation_date TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
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);
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CREATE TABLE IF NOT EXISTS sensors (
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sensor_id CHAR(36) CONSTRAINT pk_sensors PRIMARY KEY,
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sensor_name VARCHAR(32) NOT NULL,
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sensor_location VARCHAR(32) NOT NULL,
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wire_id VARCHAR(15),
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i2c_bus VARCHAR(255),
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i2c_address VARCHAR(12),
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gpio_number VARCHAR(6),
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sensor_model VARCHAR(16) NOT NULL,
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sensor_enabled BOOLEAN DEFAULT TRUE NOT NULL,
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sensor_last_contact TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP NOT NULL,
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device_id CHAR(36),
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creation_date TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP NOT NULL
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);
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CREATE TABLE IF NOT EXISTS humidities (
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humidity_id CHAR(36) CONSTRAINT pk_humidities PRIMARY KEY,
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humidity_value NUMERIC(9,3) NOT NULL,
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humidity_from_date TIMESTAMP WITH TIME ZONE NOT NULL,
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humidity_till_date TIMESTAMP WITH TIME ZONE,
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sensor_id CHAR(36),
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creation_date TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP NOT NULL,
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update_date TIMESTAMP WITH TIME ZONE
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);
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CREATE TABLE IF NOT EXISTS pressures (
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pressure_id CHAR(36) CONSTRAINT pk_pressures PRIMARY KEY,
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pressure_value NUMERIC(10,3) NOT NULL,
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pressure_from_date TIMESTAMP WITH TIME ZONE NOT NULL,
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pressure_till_date TIMESTAMP WITH TIME ZONE,
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sensor_id CHAR(36),
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creation_date TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP NOT NULL,
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update_date TIMESTAMP WITH TIME ZONE
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);
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CREATE TABLE IF NOT EXISTS temperatures (
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temperature_id CHAR(36) CONSTRAINT pk_temperatures PRIMARY KEY,
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temperature_value NUMERIC(5,3) NOT NULL,
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temperature_from_date TIMESTAMP WITH TIME ZONE NOT NULL,
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temperature_till_date TIMESTAMP WITH TIME ZONE,
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sensor_id CHAR(36),
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creation_date TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP NOT NULL,
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update_date TIMESTAMP WITH TIME ZONE
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);
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CREATE TABLE IF NOT EXISTS info (
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key VARCHAR(32) CONSTRAINT pk_info PRIMARY KEY,
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value VARCHAR(32) NOT NULL
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);
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-- +----------------------------------------+
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-- | FOREIGN-KEYS |
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-- +----------------------------------------+
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ALTER TABLE sensors
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ADD FOREIGN KEY (device_id)
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REFERENCES devices(device_id)
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ON DELETE CASCADE
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ON UPDATE CASCADE;
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ALTER TABLE humidities
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ADD FOREIGN KEY (sensor_id)
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REFERENCES sensors(sensor_id)
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ON DELETE CASCADE
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ON UPDATE CASCADE;
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ALTER TABLE pressures
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ADD FOREIGN KEY (sensor_id)
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REFERENCES sensors(sensor_id)
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ON DELETE CASCADE
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ON UPDATE CASCADE;
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ALTER TABLE temperatures
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ADD FOREIGN KEY (sensor_id)
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REFERENCES sensors(sensor_id)
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ON DELETE CASCADE
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ON UPDATE CASCADE;
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-- +----------------------------------------+
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-- | Trigger-Functions |
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-- +----------------------------------------+
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CREATE OR REPLACE FUNCTION device_last_contact()
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RETURNS trigger AS
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$BODY$
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BEGIN
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UPDATE devices
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SET device_last_contact = CURRENT_TIMESTAMP
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WHERE device_id = NEW.device_id;
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RETURN NEW;
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END;
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$BODY$ LANGUAGE plpgsql;
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CREATE OR REPLACE FUNCTION sensor_last_contact()
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RETURNS trigger AS
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$BODY$
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BEGIN
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UPDATE sensors
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SET sensor_last_contact = CURRENT_TIMESTAMP,
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sensor_enabled = true
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WHERE sensor_id = NEW.sensor_id;
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RETURN NEW;
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END;
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$BODY$ LANGUAGE plpgsql;
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-- +----------------------------------------+
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-- | Trigger |
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-- +----------------------------------------+
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DROP TRIGGER IF EXISTS ai_humidities ON humidities;
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DROP TRIGGER IF EXISTS ai_pressure ON pressures;
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DROP TRIGGER IF EXISTS ai_temperatures ON temperatures;
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CREATE TRIGGER au_sensors
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AFTER UPDATE
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ON sensors
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FOR EACH ROW
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EXECUTE PROCEDURE device_last_contact();
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CREATE TRIGGER ai_humidities
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AFTER INSERT
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ON humidities
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FOR EACH ROW
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EXECUTE PROCEDURE sensor_last_contact();
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CREATE TRIGGER ai_pressures
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AFTER INSERT
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ON pressures
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FOR EACH ROW
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EXECUTE PROCEDURE sensor_last_contact();
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CREATE TRIGGER ai_temperatures
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AFTER INSERT
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ON temperatures
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FOR EACH ROW
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EXECUTE PROCEDURE sensor_last_contact(); |