From bf80a911f7846f837712e60ee7d0fd28de46f21d Mon Sep 17 00:00:00 2001
From: Alex Kotov <kotovalexarian@gmail.com>
Date: Thu, 15 Oct 2020 01:36:24 +0500
Subject: [PATCH] Create database migrations

---
 .env                                          |  1 +
 diesel.toml                                   |  5 +++
 .../down.sql                                  |  6 ++++
 .../up.sql                                    | 36 +++++++++++++++++++
 .../2020-10-14-203215_create_users/down.sql   |  3 ++
 .../2020-10-14-203215_create_users/up.sql     |  6 ++++
 src/main.rs                                   |  2 +-
 src/schema.rs                                 |  6 ++++
 8 files changed, 64 insertions(+), 1 deletion(-)
 create mode 100644 .env
 create mode 100644 diesel.toml
 create mode 100644 migrations/00000000000000_diesel_initial_setup/down.sql
 create mode 100644 migrations/00000000000000_diesel_initial_setup/up.sql
 create mode 100644 migrations/2020-10-14-203215_create_users/down.sql
 create mode 100644 migrations/2020-10-14-203215_create_users/up.sql
 create mode 100644 src/schema.rs

diff --git a/.env b/.env
new file mode 100644
index 0000000..21d40ec
--- /dev/null
+++ b/.env
@@ -0,0 +1 @@
+DATABASE_URL='postgres://fedihub:fedihub@localhost:5432/fedihub_development'
diff --git a/diesel.toml b/diesel.toml
new file mode 100644
index 0000000..92267c8
--- /dev/null
+++ b/diesel.toml
@@ -0,0 +1,5 @@
+# For documentation on how to configure this file,
+# see diesel.rs/guides/configuring-diesel-cli
+
+[print_schema]
+file = "src/schema.rs"
diff --git a/migrations/00000000000000_diesel_initial_setup/down.sql b/migrations/00000000000000_diesel_initial_setup/down.sql
new file mode 100644
index 0000000..a9f5260
--- /dev/null
+++ b/migrations/00000000000000_diesel_initial_setup/down.sql
@@ -0,0 +1,6 @@
+-- This file was automatically created by Diesel to setup helper functions
+-- and other internal bookkeeping. This file is safe to edit, any future
+-- changes will be added to existing projects as new migrations.
+
+DROP FUNCTION IF EXISTS diesel_manage_updated_at(_tbl regclass);
+DROP FUNCTION IF EXISTS diesel_set_updated_at();
diff --git a/migrations/00000000000000_diesel_initial_setup/up.sql b/migrations/00000000000000_diesel_initial_setup/up.sql
new file mode 100644
index 0000000..d68895b
--- /dev/null
+++ b/migrations/00000000000000_diesel_initial_setup/up.sql
@@ -0,0 +1,36 @@
+-- This file was automatically created by Diesel to setup helper functions
+-- and other internal bookkeeping. This file is safe to edit, any future
+-- changes will be added to existing projects as new migrations.
+
+
+
+
+-- Sets up a trigger for the given table to automatically set a column called
+-- `updated_at` whenever the row is modified (unless `updated_at` was included
+-- in the modified columns)
+--
+-- # Example
+--
+-- ```sql
+-- CREATE TABLE users (id SERIAL PRIMARY KEY, updated_at TIMESTAMP NOT NULL DEFAULT NOW());
+--
+-- SELECT diesel_manage_updated_at('users');
+-- ```
+CREATE OR REPLACE FUNCTION diesel_manage_updated_at(_tbl regclass) RETURNS VOID AS $$
+BEGIN
+    EXECUTE format('CREATE TRIGGER set_updated_at BEFORE UPDATE ON %s
+                    FOR EACH ROW EXECUTE PROCEDURE diesel_set_updated_at()', _tbl);
+END;
+$$ LANGUAGE plpgsql;
+
+CREATE OR REPLACE FUNCTION diesel_set_updated_at() RETURNS trigger AS $$
+BEGIN
+    IF (
+        NEW IS DISTINCT FROM OLD AND
+        NEW.updated_at IS NOT DISTINCT FROM OLD.updated_at
+    ) THEN
+        NEW.updated_at := current_timestamp;
+    END IF;
+    RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
diff --git a/migrations/2020-10-14-203215_create_users/down.sql b/migrations/2020-10-14-203215_create_users/down.sql
new file mode 100644
index 0000000..4e6bf65
--- /dev/null
+++ b/migrations/2020-10-14-203215_create_users/down.sql
@@ -0,0 +1,3 @@
+-- This file should undo anything in `up.sql`
+
+DROP TABLE users;
diff --git a/migrations/2020-10-14-203215_create_users/up.sql b/migrations/2020-10-14-203215_create_users/up.sql
new file mode 100644
index 0000000..c9350c7
--- /dev/null
+++ b/migrations/2020-10-14-203215_create_users/up.sql
@@ -0,0 +1,6 @@
+-- Your SQL goes here
+
+CREATE TABLE users (
+  id SERIAL PRIMARY KEY,
+  username VARCHAR NOT NULL
+);
diff --git a/src/main.rs b/src/main.rs
index 833be49..f25f0af 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,4 +1,4 @@
-#![feature(proc_macro_hygiene, decl_macro)]
+#![feature(decl_macro, proc_macro_hygiene)]
 
 #[macro_use] extern crate rocket;
 #[macro_use] extern crate serde_derive;
diff --git a/src/schema.rs b/src/schema.rs
new file mode 100644
index 0000000..327f0cc
--- /dev/null
+++ b/src/schema.rs
@@ -0,0 +1,6 @@
+table! {
+    users (id) {
+        id -> Int4,
+        username -> Varchar,
+    }
+}