mirror of
https://github.com/OHTU-German-learning-website/OHTU-German-learning-website.git
synced 2026-10-12 19:13:51 +03:00
axel/setup db n migrations (#29)
* setup db & migrations * bugfixes * README updates * updates to readme * not tracking .env.dev * README update * cleanup * updated db logic to allow for test db * remove unnecessary await --------- Co-authored-by: Jukka Kuusto <38991418+jkuusto@users.noreply.github.com>
This commit is contained in:
Axel Adlercreutz
co-authored by
Jukka Kuusto
Jukka Kuusto
parent
c0c4d96e0d
commit
6ded19a4ec
@@ -2,8 +2,41 @@
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GRADESA is a freely accessible website where language learners at language centres as well as university students of German studies can autonomously work on their German grammar skills and knowledge.
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## Install
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This should be all that's needed:
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- `node`
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- `npm`
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- https://github.com/peterldowns/pgmigrate
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- MAC: Install the newest version with `brew install peterldowns/tap/pgmigrate`
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- Linux: # Install pgmigrate
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- `wget https://github.com/peterldowns/pgmigrate/releases/download/v0.0.6%2Bcommit.4f90829/pgmigrate-linux-amd64 -O /usr/local/bin/pgmigrate`
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- `chmod +x /usr/local/bin/pgmigrate`
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- Docker, either of these installation options work (if you're new to docker, I recommend Docker Desktop):
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- `brew install docker` + `brew install colima` (https://github.com/abiosoft/colima)
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- [Docker Desktop](https://www.docker.com/products/docker-desktop/)
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- psql: `brew install postgresql@15`
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## Running locally
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- Run PostgreSQL:
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- Init .env files `./init-env.sh` — This will create the required .env files for environment variables. The local db credentials are
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- DB_HOST=localhost
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- DB_PORT=6543
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- DB_USER=ohtu
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- DB_PASSWORD=password
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- DB_NAME=gradesa
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- `docker-compose up -d` — This command starts the services defined in the docker-compose.yml file in detached mode, meaning the services run in the background and the terminal is freed up for other tasks. For more information, checkout [Docker Compose docs](https://docs.docker.com/compose/)
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- `npm run dev` — Starts the dev server.
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- You can now find the NextJS app on localhost:3000
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## Documentation
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- [Product and Sprint Backlogs](https://github.com/orgs/OHTU-German-learning-website/projects/3)
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- Migrations: check [the migration README](data/README.md)
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## Definition of Done
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"*The requirement has been analyzed, designed, programmed, tested, automated testing implemented, documented, integrated into other software, and deployed to the production environment.*"
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"_The requirement has been analyzed, designed, programmed, tested, automated testing implemented, documented, integrated into other software, and deployed to the production environment._"
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@@ -0,0 +1,25 @@
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# Database Migration with pgmigrate
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This project uses `pgmigrate` to manage database migrations. `pgmigrate` is a tool that helps apply, and manage database schema changes in a consistent and reliable manner. Ran migrations are tracked in the `pg_migrate_migrations` table.
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Having a migration system that's based on sql files is good because it keeps track of schema changes in git and guarantees that everyone is using the same schema.
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## Prerequisites
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Ensure you have the following installed on your system:
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- PostgreSQL
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- `pgmigrate` (You can find more information and installation instructions on the [pgmigrate GitHub page](https://github.com/peterldowns/pgmigrate))
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## Migration Script
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The migration script is located at `data/migrate.sh`. This script uses `pgmigrate` to apply migrations to the database.
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### Running Migrations
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To run the migrations, execute the following command (in root): `npm run db:migrate`
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### Resetting the database
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To reset the database, you can use the following command: `npm run db:reset`
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This will clear all tables, and rerun migrations.
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Executable
+8
@@ -0,0 +1,8 @@
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#!/bin/bash
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set -euo pipefail
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cd "$(dirname "$0")"
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cd ..
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pgmigrate migrate -d postgres://ohtu:password@localhost:6543/gradesa -m data/migrations
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Executable
+10
@@ -0,0 +1,10 @@
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#!/usr/bin/env bash
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set -euo pipefail
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cd "$(dirname "$0")"
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psql "postgres://ohtu:password@localhost:6543/gradesa" -c "DROP SCHEMA public CASCADE;CREATE SCHEMA public;"
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cd ../
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pnpm run db:migrate
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echo "Migration DONE"
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+1
-3
@@ -5,8 +5,6 @@ services:
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container_name: gradesa-db
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environment:
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POSTGRES_PASSWORD: password
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POSTGRES_USER: tsoha
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POSTGRES_DB: gradesa
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volumes:
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- pg-data:/var/lib/postgresql/data/
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- ./provision_db.sql:/docker-entrypoint-initdb.d/1_provision_db.sql
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@@ -14,7 +12,7 @@ services:
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ports:
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- "6543:5432"
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healthcheck:
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test: ["CMD", "pg_isready", "-U", "tsoha"]
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test: ["CMD", "pg_isready", "-U", "postgres"]
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interval: 10s
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retries: 20
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volumes:
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@@ -0,0 +1,5 @@
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DB_HOST=
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DB_PORT=
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DB_USER=
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DB_PASSWORD=
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DB_NAME=
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Generated
+145
@@ -8,7 +8,9 @@
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"name": "gradesa",
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"version": "0.1.0",
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"dependencies": {
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"dotenv": "^16.4.7",
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"next": "15.1.5",
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"pg": "^8.13.1",
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"react": "^19.0.0",
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"react-dom": "^19.0.0"
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},
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@@ -1580,6 +1582,17 @@
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"node": ">=0.10.0"
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}
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},
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"node_modules/dotenv": {
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"version": "16.4.7",
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"resolved": "https://registry.npmjs.org/dotenv/-/dotenv-16.4.7.tgz",
|
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"integrity": "sha512-47qPchRCykZC03FhkYAhrvwU4xDBFIj1QPqaarj6mdM/hgUzfPHcpkHJOn3mJAufFeeAxAzeGsr5X0M4k6fLZQ==",
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"engines": {
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"node": ">=12"
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},
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"funding": {
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"url": "https://dotenvx.com"
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}
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},
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"node_modules/dunder-proto": {
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"version": "1.0.1",
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"resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",
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@@ -3527,6 +3540,87 @@
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"integrity": "sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==",
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"dev": true
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},
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"node_modules/pg": {
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"version": "8.13.1",
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"resolved": "https://registry.npmjs.org/pg/-/pg-8.13.1.tgz",
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"integrity": "sha512-OUir1A0rPNZlX//c7ksiu7crsGZTKSOXJPgtNiHGIlC9H0lO+NC6ZDYksSgBYY/thSWhnSRBv8w1lieNNGATNQ==",
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"dependencies": {
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"pg-connection-string": "^2.7.0",
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"pg-pool": "^3.7.0",
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"pg-protocol": "^1.7.0",
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"pg-types": "^2.1.0",
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"pgpass": "1.x"
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},
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"engines": {
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"node": ">= 8.0.0"
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},
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"optionalDependencies": {
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"pg-cloudflare": "^1.1.1"
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},
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"peerDependencies": {
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"pg-native": ">=3.0.1"
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},
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"peerDependenciesMeta": {
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"pg-native": {
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"optional": true
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}
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}
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},
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"node_modules/pg-cloudflare": {
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"version": "1.1.1",
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"resolved": "https://registry.npmjs.org/pg-cloudflare/-/pg-cloudflare-1.1.1.tgz",
|
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"integrity": "sha512-xWPagP/4B6BgFO+EKz3JONXv3YDgvkbVrGw2mTo3D6tVDQRh1e7cqVGvyR3BE+eQgAvx1XhW/iEASj4/jCWl3Q==",
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"optional": true
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},
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"node_modules/pg-connection-string": {
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"version": "2.7.0",
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"resolved": "https://registry.npmjs.org/pg-connection-string/-/pg-connection-string-2.7.0.tgz",
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"integrity": "sha512-PI2W9mv53rXJQEOb8xNR8lH7Hr+EKa6oJa38zsK0S/ky2er16ios1wLKhZyxzD7jUReiWokc9WK5nxSnC7W1TA=="
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},
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"node_modules/pg-int8": {
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"version": "1.0.1",
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"resolved": "https://registry.npmjs.org/pg-int8/-/pg-int8-1.0.1.tgz",
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"integrity": "sha512-WCtabS6t3c8SkpDBUlb1kjOs7l66xsGdKpIPZsg4wR+B3+u9UAum2odSsF9tnvxg80h4ZxLWMy4pRjOsFIqQpw==",
|
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"engines": {
|
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"node": ">=4.0.0"
|
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}
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},
|
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"node_modules/pg-pool": {
|
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"version": "3.7.0",
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"resolved": "https://registry.npmjs.org/pg-pool/-/pg-pool-3.7.0.tgz",
|
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"integrity": "sha512-ZOBQForurqh4zZWjrgSwwAtzJ7QiRX0ovFkZr2klsen3Nm0aoh33Ls0fzfv3imeH/nw/O27cjdz5kzYJfeGp/g==",
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"peerDependencies": {
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"pg": ">=8.0"
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}
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},
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"node_modules/pg-protocol": {
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"version": "1.7.0",
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"resolved": "https://registry.npmjs.org/pg-protocol/-/pg-protocol-1.7.0.tgz",
|
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"integrity": "sha512-hTK/mE36i8fDDhgDFjy6xNOG+LCorxLG3WO17tku+ij6sVHXh1jQUJ8hYAnRhNla4QVD2H8er/FOjc/+EgC6yQ=="
|
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},
|
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"node_modules/pg-types": {
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"version": "2.2.0",
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"resolved": "https://registry.npmjs.org/pg-types/-/pg-types-2.2.0.tgz",
|
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"integrity": "sha512-qTAAlrEsl8s4OiEQY69wDvcMIdQN6wdz5ojQiOy6YRMuynxenON0O5oCpJI6lshc6scgAY8qvJ2On/p+CXY0GA==",
|
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"dependencies": {
|
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"pg-int8": "1.0.1",
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"postgres-array": "~2.0.0",
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"postgres-bytea": "~1.0.0",
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"postgres-date": "~1.0.4",
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"postgres-interval": "^1.1.0"
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},
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"engines": {
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"node": ">=4"
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}
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},
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"node_modules/pgpass": {
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"version": "1.0.5",
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"resolved": "https://registry.npmjs.org/pgpass/-/pgpass-1.0.5.tgz",
|
||||
"integrity": "sha512-FdW9r/jQZhSeohs1Z3sI1yxFQNFvMcnmfuj4WBMUTxOrAyLMaTcE1aAMBiTlbMNaXvBCQuVi0R7hd8udDSP7ug==",
|
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"dependencies": {
|
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"split2": "^4.1.0"
|
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}
|
||||
},
|
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"node_modules/picocolors": {
|
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"version": "1.1.1",
|
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"resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.1.1.tgz",
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@@ -3580,6 +3674,41 @@
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"node": "^10 || ^12 || >=14"
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}
|
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},
|
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"node_modules/postgres-array": {
|
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"version": "2.0.0",
|
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"resolved": "https://registry.npmjs.org/postgres-array/-/postgres-array-2.0.0.tgz",
|
||||
"integrity": "sha512-VpZrUqU5A69eQyW2c5CA1jtLecCsN2U/bD6VilrFDWq5+5UIEVO7nazS3TEcHf1zuPYO/sqGvUvW62g86RXZuA==",
|
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"engines": {
|
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"node": ">=4"
|
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}
|
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},
|
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"node_modules/postgres-bytea": {
|
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"version": "1.0.0",
|
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"resolved": "https://registry.npmjs.org/postgres-bytea/-/postgres-bytea-1.0.0.tgz",
|
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"integrity": "sha512-xy3pmLuQqRBZBXDULy7KbaitYqLcmxigw14Q5sj8QBVLqEwXfeybIKVWiqAXTlcvdvb0+xkOtDbfQMOf4lST1w==",
|
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"engines": {
|
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"node": ">=0.10.0"
|
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}
|
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},
|
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"node_modules/postgres-date": {
|
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"version": "1.0.7",
|
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"resolved": "https://registry.npmjs.org/postgres-date/-/postgres-date-1.0.7.tgz",
|
||||
"integrity": "sha512-suDmjLVQg78nMK2UZ454hAG+OAW+HQPZ6n++TNDUX+L0+uUlLywnoxJKDou51Zm+zTCjrCl0Nq6J9C5hP9vK/Q==",
|
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"engines": {
|
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"node": ">=0.10.0"
|
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}
|
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},
|
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"node_modules/postgres-interval": {
|
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"version": "1.2.0",
|
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"resolved": "https://registry.npmjs.org/postgres-interval/-/postgres-interval-1.2.0.tgz",
|
||||
"integrity": "sha512-9ZhXKM/rw350N1ovuWHbGxnGh/SNJ4cnxHiM0rxE4VN41wsg8P8zWn9hv/buK00RP4WvlOyr/RBDiptyxVbkZQ==",
|
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"dependencies": {
|
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"xtend": "^4.0.0"
|
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},
|
||||
"engines": {
|
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"node": ">=0.10.0"
|
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}
|
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},
|
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"node_modules/prelude-ls": {
|
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"version": "1.2.1",
|
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"resolved": "https://registry.npmjs.org/prelude-ls/-/prelude-ls-1.2.1.tgz",
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@@ -4031,6 +4160,14 @@
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"node": ">=0.10.0"
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}
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},
|
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"node_modules/split2": {
|
||||
"version": "4.2.0",
|
||||
"resolved": "https://registry.npmjs.org/split2/-/split2-4.2.0.tgz",
|
||||
"integrity": "sha512-UcjcJOWknrNkF6PLX83qcHM6KHgVKNkV62Y8a5uYDVv9ydGQVwAHMKqHdJje1VTWpljG0WYpCDhrCdAOYH4TWg==",
|
||||
"engines": {
|
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"node": ">= 10.x"
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}
|
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},
|
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"node_modules/stable-hash": {
|
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"version": "0.0.4",
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"resolved": "https://registry.npmjs.org/stable-hash/-/stable-hash-0.0.4.tgz",
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@@ -4504,6 +4641,14 @@
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"node": ">=0.10.0"
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}
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},
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"node_modules/xtend": {
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"version": "4.0.2",
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"resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
|
||||
"integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==",
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"engines": {
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"node": ">=0.4"
|
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}
|
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},
|
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"node_modules/yocto-queue": {
|
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"version": "0.1.0",
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"resolved": "https://registry.npmjs.org/yocto-queue/-/yocto-queue-0.1.0.tgz",
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@@ -3,19 +3,21 @@
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"version": "0.1.0",
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"private": true,
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"scripts": {
|
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"dev": "next dev --turbopack",
|
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"dev": "next dev",
|
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"build": "next build",
|
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"start": "next start",
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"lint": "next lint"
|
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},
|
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"dependencies": {
|
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"dotenv": "^16.4.7",
|
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"next": "15.1.5",
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"pg": "^8.13.1",
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"react": "^19.0.0",
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"react-dom": "^19.0.0",
|
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"next": "15.1.5"
|
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"react-dom": "^19.0.0"
|
||||
},
|
||||
"devDependencies": {
|
||||
"@eslint/eslintrc": "^3",
|
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"eslint": "^9",
|
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"eslint-config-next": "15.1.5",
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"@eslint/eslintrc": "^3"
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"eslint-config-next": "15.1.5"
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||||
}
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}
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@@ -0,0 +1,7 @@
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import { query } from '../../../backend/db';
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|
||||
export async function GET(request) {
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const result = await query('SELECT now()');
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const now = result.rows[0].now;
|
||||
return Response.json({ message: 'Hello, world!', now });
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}
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+10
-2
@@ -1,7 +1,14 @@
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'use client';
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import { useEffect, useState } from "react";
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import Image from "next/image";
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import styles from "./page.module.css";
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|
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export default function Home() {
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const [data, setData] = useState(null);
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useEffect(() => {
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fetch('/api/hello')
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.then(res => res.json())
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.then(data => setData(data));
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}, []);
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return (
|
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<div className={styles.page}>
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<main className={styles.main}>
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@@ -19,7 +26,8 @@ export default function Home() {
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</li>
|
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<li>Save and see your changes instantly.</li>
|
||||
</ol>
|
||||
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{data && <p>{data.message}</p>}
|
||||
DB TIME: {data && <p>{data.now}</p>}
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<div className={styles.ctas}>
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<a
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className={styles.primary}
|
||||
|
||||
@@ -0,0 +1,90 @@
|
||||
import { config } from 'dotenv';
|
||||
|
||||
// Loads .env and .env.NODE_ENV (e.g. .env.development)
|
||||
// Shared environment variables are in .env
|
||||
// Environment specific variables are in .env.NODE_ENV
|
||||
// NextJS defaults to 'development' when running npm run dev
|
||||
export const initConfig = async () => {
|
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const env = process.env.NODE_ENV;
|
||||
switch (env) {
|
||||
case 'test':
|
||||
case 'development':
|
||||
case 'production':
|
||||
config({ path: `${__dirname}/dotenv/.env`, override: true });
|
||||
config({ path: `${__dirname}/dotenv/.env.${env}`, override: true });
|
||||
break;
|
||||
default:
|
||||
throw new Error('Unsupported environment: ' + env);
|
||||
}
|
||||
};
|
||||
initConfig();
|
||||
|
||||
|
||||
// The following is an environment variable helper.
|
||||
// It's used to read environment variables from .env and .env.NODE_ENV
|
||||
// So instead of using process.env.DB_HOST, you can use getConfig().db.host
|
||||
// This is useful for keeping the code clean and gives you clear errors if you miss a variable.
|
||||
let cachedConfig;
|
||||
|
||||
export const getConfig = () => {
|
||||
if (cachedConfig) {
|
||||
return cachedConfig;
|
||||
}
|
||||
cachedConfig = create();
|
||||
return cachedConfig;
|
||||
};
|
||||
|
||||
|
||||
function getFromEnv(key) {
|
||||
const val = process.env[key];
|
||||
if (val === undefined) {
|
||||
return undefined;
|
||||
}
|
||||
return val;
|
||||
}
|
||||
|
||||
function create() {
|
||||
let errors = [];
|
||||
|
||||
function readString(key) {
|
||||
const val = getFromEnv(key);
|
||||
if (val === undefined || val.trim() === '') {
|
||||
errors.push(key);
|
||||
}
|
||||
return val ?? '';
|
||||
}
|
||||
|
||||
function readStringOptional(key, defaultValue) {
|
||||
return (getFromEnv(key)) ?? defaultValue;
|
||||
}
|
||||
|
||||
function readInt(key) {
|
||||
const val = getFromEnv(key);
|
||||
if (val === undefined) {
|
||||
errors.push(key);
|
||||
return -1;
|
||||
}
|
||||
return parseInt(val);
|
||||
}
|
||||
|
||||
function readIntOptional(key, defaultValue) {
|
||||
const value = getFromEnv(key);
|
||||
return value === undefined ? defaultValue : parseInt(value);
|
||||
}
|
||||
|
||||
const config = {
|
||||
db: {
|
||||
host: readString('DB_HOST'),
|
||||
port: readInt('DB_PORT'),
|
||||
user: readString('DB_USER'),
|
||||
password: readString('DB_PASSWORD'),
|
||||
database: readString('DB_NAME'),
|
||||
},
|
||||
};
|
||||
|
||||
if (errors.length > 0) {
|
||||
throw new Error(`Missing or invalid environment variables: ${errors.join(', ')}`);
|
||||
}
|
||||
|
||||
return config;
|
||||
}
|
||||
@@ -0,0 +1,71 @@
|
||||
import { Pool } from 'pg';
|
||||
import { getConfig } from './config';
|
||||
|
||||
class DB {
|
||||
#pool;
|
||||
constructor() { }
|
||||
|
||||
async get() {
|
||||
if (!this.#pool) {
|
||||
const config = getConfig();
|
||||
this.#createPool(config.db);
|
||||
await this.#connect(this.#pool);
|
||||
}
|
||||
return this.#pool;
|
||||
}
|
||||
|
||||
#createPool(config) {
|
||||
this.#pool = new Pool(config);
|
||||
}
|
||||
|
||||
async #connect(pool) {
|
||||
try {
|
||||
if (!pool) {
|
||||
throw new Error('Pool not initialized');
|
||||
}
|
||||
await pool.connect();
|
||||
const row = await pool.query('SELECT current_database() as database_name, now()');
|
||||
console.log('\x1b[34m%s\x1b[0m', `Connected to database ${row.rows[0].database_name} at ${row.rows[0].now.toISOString()}`);
|
||||
} catch (err) {
|
||||
console.error('Failed to connect to database', err);
|
||||
}
|
||||
}
|
||||
|
||||
async #set(config) {
|
||||
const newPool = new Pool(config);
|
||||
await this.#connect(newPool);
|
||||
this.#pool = newPool;
|
||||
}
|
||||
}
|
||||
|
||||
export const db = new DB();
|
||||
|
||||
/**
|
||||
* Executes a database query using the connection pool.
|
||||
*
|
||||
* @param {string} text - The SQL query text to be executed.
|
||||
* @param {Array} [params] - An optional array of parameters to be used in the query.
|
||||
* @returns {Promise<Object>} - A promise that resolves to the result of the query.
|
||||
*/
|
||||
export const query = async (text, params) => (await db.get()).query(text, params);
|
||||
|
||||
|
||||
/**
|
||||
* Executes a database transaction using the connection pool.
|
||||
*
|
||||
* @param {Function} fn - A function that takes a client as an argument and returns a promise.
|
||||
* @returns {Promise<Object>} - A promise that resolves to the result of the transaction.
|
||||
*/
|
||||
export const transaction = async (fn) => {
|
||||
const client = await (await db.get()).connect();
|
||||
try {
|
||||
await client.query('BEGIN');
|
||||
const result = await fn(client);
|
||||
await client.query('COMMIT');
|
||||
return result;
|
||||
} catch (err) {
|
||||
await client.query('ROLLBACK');
|
||||
throw err;
|
||||
}
|
||||
};
|
||||
|
||||
Executable
+9
@@ -0,0 +1,9 @@
|
||||
#!/usr/bin/env bash
|
||||
|
||||
touch gradesa/.env
|
||||
echo "TZ=UTC" >> gradesa/.env
|
||||
cp gradesa/.env.template gradesa/.env.development
|
||||
cp gradesa/.env.template gradesa/.env.test
|
||||
cp gradesa/.env.template gradesa/.env.production
|
||||
|
||||
echo "Created .env files"
|
||||
@@ -0,0 +1,13 @@
|
||||
{
|
||||
"name": "ohtu-german-learning-website",
|
||||
"version": "1.0.0",
|
||||
"description": "GRADESA is a freely accessible website where language learners at language centres as well as university students of German studies can autonomously work on their German grammar skills and knowledge.",
|
||||
"scripts": {
|
||||
"db:migrate": "./data/migrate.sh",
|
||||
"db:reset": "./data/reset-db.sh",
|
||||
"dev": "npm run --prefix gradesa dev",
|
||||
"test": "echo \"Error: no test specified\" && exit 1"
|
||||
},
|
||||
"author": "",
|
||||
"license": "ISC"
|
||||
}
|
||||
@@ -1,12 +0,0 @@
|
||||
DO $do$
|
||||
BEGIN
|
||||
IF NOT EXISTS (SELECT FROM pg_catalog.pg_roles WHERE rolname = 'tsoha') THEN
|
||||
CREATE ROLE tsoha;
|
||||
END IF;
|
||||
ALTER ROLE tsoha WITH LOGIN PASSWORD 'password' NOSUPERUSER CREATEDB NOCREATEROLE;
|
||||
END
|
||||
$do$;
|
||||
|
||||
DROP DATABASE IF EXISTS gradesa;
|
||||
CREATE DATABASE gradesa OWNER tsoha;
|
||||
GRANT ALL ON DATABASE gradesa TO tsoha;
|
||||
@@ -0,0 +1,12 @@
|
||||
DO $do$
|
||||
BEGIN
|
||||
IF NOT EXISTS (SELECT FROM pg_catalog.pg_roles WHERE rolname = 'ohtu') THEN
|
||||
CREATE ROLE ohtu;
|
||||
END IF;
|
||||
ALTER ROLE ohtu WITH LOGIN PASSWORD 'password' NOSUPERUSER CREATEDB NOCREATEROLE;
|
||||
END
|
||||
$do$;
|
||||
|
||||
DROP DATABASE IF EXISTS gradesa;
|
||||
CREATE DATABASE gradesa OWNER ohtu;
|
||||
GRANT ALL ON DATABASE gradesa TO ohtu;
|
||||
Reference in New Issue
Block a user