save users to sqlite

db/001_initial.sql

@@ -0,0 +1,37 @@
+BEGIN;
+
+CREATE TABLE IF NOT EXISTS users (
+  `user_id` integer NOT NULL PRIMARY KEY AUTOINCREMENT,
+  `chat_id` integer NOT NULL UNIQUE,
+  `name` VARCHAR(64) NOT NULL,
+  created_at datetime NOT NULL
+);
+
+CREATE TABLE IF NOT EXISTS parameters (
+  `param_id` integer NOT NULL PRIMARY KEY AUTOINCREMENT,
+  `user_id` integer NOT NULL,
+  `key` VARCHAR(64) NOT NULL,
+  `value` VARCHAR(64) NOT NULL,
+  FOREIGN KEY(user_id)
+    REFERENCES users(user_id)
+      ON DELETE CASCADE
+);
+
+CREATE UNIQUE INDEX IF NOT EXISTS actions_action_id_user_id_idx 
+  ON parameters (`user_id`, `key`);
+
+CREATE TABLE IF NOT EXISTS actions (
+  `action_id` integer NOT NULL PRIMARY KEY AUTOINCREMENT,
+  `user_id` integer NOT NULL,
+  `name` VARCHAR(64) NOT NULL,
+  FOREIGN KEY(user_id)
+    REFERENCES users(user_id)
+      ON DELETE CASCADE
+);
+
+COMMIT;
+
+-- drop index actions_action_id_user_id_idx;
+-- drop table users;
+-- drop table parameters;
+-- drop table actions;