Lots of stuffs

Primarely setup stuffs for diesel
TODO: Add switch in src/storage/mod.rs for sqlite/postgres

.devcontainer/devcontainer.json

@@ -26,7 +26,7 @@
 	// "forwardPorts": [],
 
 	// Use 'postCreateCommand' to run commands after the container is created.
-	"postCreateCommand": "cargo install diesel_cli --no-default-features --features postgres sqlite"
+	"postCreateCommand": "cargo install diesel_cli --no-default-features --features postgres,sqlite"
 
 	// Configure tool-specific properties.
 	// "customizations": {},

.env

@@ -1 +0,0 @@
-DATABASE_URL=./src/storage/db.sqlite

.gitignore

@@ -1,2 +1,4 @@
 /target
-src/storage/db.sqlite
+db.sqlite
+.env
+.lapce/

diesel-devel

@@ -0,0 +1,3 @@
+#/bin/bash
+touch db.sqlite
+DATABASE_URL="db.sqlite";diesel --config-file diesel_devel.toml $@

diesel.toml

@@ -2,8 +2,8 @@
 # see https://diesel.rs/guides/configuring-diesel-cli
 
 [print_schema]
-file = "src/schema.rs"
+file = "src/storage/diesel_db/postgres.rs"
 custom_type_derives = ["diesel::query_builder::QueryId"]
 
 [migrations_directory]
-dir = "migrations"
+dir = "migrations/postgres"

diesel_devel.toml

@@ -0,0 +1,9 @@
+# For documentation on how to configure this file,
+# see https://diesel.rs/guides/configuring-diesel-cli
+
+[print_schema]
+file = "src/storage/diesel_db/sqlite.rs"
+custom_type_derives = ["diesel::query_builder::QueryId"]
+
+[migrations_directory]
+dir = "migrations/sqlite"

migrations/postgres/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();

migrations/postgres/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;

migrations/sqlite/.keep

@@ -0,0 +1,10 @@
+// Copyright (c) 2023 mStar
+// 
+// Licensed under the EUPL, Version 1.2
+// 
+// You may not use this work except in compliance with the Licence.
+// You should have received a copy of the Licence along with this work. If not, see:
+// <https://joinup.ec.europa.eu/collection/eupl/eupl-text-eupl-12>.
+// See the Licence for the specific language governing permissions and limitations under the Licence.
+// 
+

migrations/sqlite/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();

migrations/sqlite/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;

migrations/sqlite/2023-12-31-223546_create_people/down.sql

@@ -0,0 +1 @@
+-- This file should undo anything in `up.sql`

migrations/sqlite/2023-12-31-223546_create_people/up.sql

@@ -0,0 +1 @@
+-- Your SQL goes here

src/main.rs

@@ -17,5 +17,5 @@ mod webui;
 
 
 fn main() {
-    storage::establish_connection("./src/storage/db.sqlite");
+    let _ = storage::establish_connection("./src/storage/db.sqlite");
 }

src/storage/diesel_db/mod.rs

@@ -0,0 +1,12 @@
+// Copyright (c) 2023 mStar
+// 
+// Licensed under the EUPL, Version 1.2
+// 
+// You may not use this work except in compliance with the Licence.
+// You should have received a copy of the Licence along with this work. If not, see:
+// <https://joinup.ec.europa.eu/collection/eupl/eupl-text-eupl-12>.
+// See the Licence for the specific language governing permissions and limitations under the Licence.
+// 
+
+mod sqlite;
+mod postgres;

src/storage/mod.rs

@@ -8,19 +8,27 @@
 // See the Licence for the specific language governing permissions and limitations under the Licence.
 // 
 
-use diesel::{prelude::*, pg::PgConnection, sqlite::Sqlite};
+mod diesel_db;
+
+use anyhow::{Error, bail};
+use diesel::{prelude::*, pg::{PgConnection, Pg}};
 use diesel_migrations::{EmbeddedMigrations, embed_migrations, MigrationHarness};
-use std::error::Error;
 
 
-pub const MIGRATIONS: EmbeddedMigrations = embed_migrations!("migrations");
+pub const POSTGRES_MIGRATIONS: EmbeddedMigrations = embed_migrations!("migrations/postgres");
 
 pub fn establish_connection(db_url: &str) -> Result<PgConnection, Error> {
     //SqliteConnection::establish(db_url).unwrap_or_else(|e| panic!("Error connecting to {}: {}", db_url, e))
     let mut conn = PgConnection::establish(db_url)
         .unwrap_or_else(|e| panic!("Error connecting to {}: {}", db_url, e));
-    // TODO: Add migrations here
-    let c: MigrationHarness<PgConnection> = &mut conn;
-    c.run_pending_migrations(MIGRATIONS)?;
+    run_migrations(&mut conn)?;
+    //c.run_pending_migrations(MIGRATIONS)?;
     Ok(conn)
 }
+
+fn run_migrations(conn: &mut impl MigrationHarness<Pg>) -> Result<(), Error> {
+    match conn.run_pending_migrations(POSTGRES_MIGRATIONS) {
+        Ok(_) => Ok(()),
+        Err(e) => bail!("Migrations failed. Error {}", e)
+    }
+}