Adds some db tests using sql mock and slightly reorganises to facilitate testing

store/migrations/000001_create_action_table.down.sql

@@ -0,0 +1,4 @@
+DROP TABLE IF EXISTS actions;
+DROP TABLE IF EXISTS plans;
+
+DROP FUNCTION IF EXISTS trigger_set_timestamp;

store/migrations/000001_create_action_table.up.sql

@@ -0,0 +1,36 @@
+CREATE TABLE IF NOT EXISTS plans(
+	plan_id serial PRIMARY KEY,
+	plan_date DATE NOT NULL,
+	created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP NOT NULL,
+	updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP NOT NULL
+);
+
+CREATE TABLE IF NOT EXISTS actions(
+	action_id serial PRIMARY KEY,
+	action_description VARCHAR (500) NOT NULL,
+	estimated_chunks SMALLINT,
+	completed_chunks SMALLINT,
+	completed_on TIMESTAMP WITH TIME ZONE,
+	created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP NOT NULL,
+	updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP NOT NULL,
+	plan int REFERENCES plans(plan_id)
+);
+
+
+CREATE OR REPLACE FUNCTION trigger_set_timestamp()
+RETURNS TRIGGER AS $set_updated$
+BEGIN
+	NEW.updated_at = NOW();
+	RETURN NEW;
+END;
+$set_updated$ LANGUAGE plpgsql;
+
+CREATE TRIGGER set_updated
+BEFORE UPDATE ON actions
+FOR EACH ROW
+EXECUTE PROCEDURE trigger_set_timestamp();
+
+CREATE TRIGGER set_updated
+BEFORE UPDATE ON plans
+FOR EACH ROW
+EXECUTE PROCEDURE trigger_set_timestamp();