add automatic database migrations with goose

apiGo/database/Database.go

@@ -2,8 +2,11 @@ package database
 
 import (
 	"database/sql"
+	"embed"
 	"fmt"
 	_ "github.com/go-sql-driver/mysql"
+	"github.com/pressly/goose/v3"
+	"log"
 	"openmediacenter/apiGo/api/types"
 	"openmediacenter/apiGo/config"
 )
@@ -11,7 +14,10 @@ import (
 var db *sql.DB
 var DBName string
 
-func InitDB() {
+//go:embed migrations/*.sql
+var embedMigrations embed.FS
+
+func InitDB() error {
 	dbconf := config.GetConfig().Database
 	DBName = dbconf.DBName
 
@@ -21,15 +27,31 @@ func InitDB() {
 
 	// if there is an error opening the connection, handle it
 	if err != nil {
-		fmt.Printf("Error while connecting to database! - %s\n", err.Error())
+		return fmt.Errorf("Error while connecting to database! - %s\n", err.Error())
 	}
 
 	if db != nil {
 		ping := db.Ping()
 		if ping != nil {
-			fmt.Printf("Error while connecting to database! - %s\n", ping.Error())
+			return fmt.Errorf("Error while connecting to database! - %s\n", ping.Error())
 		}
 	}
+
+	log.Printf("Running Database migrations!")
+	// perform database migrations
+	goose.SetBaseFS(embedMigrations)
+
+	// set mysql dialect
+	err = goose.SetDialect("mysql")
+	if err != nil {
+		return err
+	}
+
+	if err := goose.Up(db, "migrations"); err != nil {
+		return err
+	}
+
+	return nil
 }
 
 func Query(query string, args ...interface{}) *sql.Rows {

apiGo/database/migrations/20210927231631_init.sql

@@ -0,0 +1,122 @@
+-- +goose Up
+-- +goose StatementBegin
+create table if not exists actors
+(
+    actor_id  int auto_increment
+        primary key,
+    name      varchar(50) null,
+    thumbnail mediumblob  null
+)
+    comment 'informations about different actors';
+-- +goose StatementEnd
+-- +goose StatementBegin
+create table if not exists settings
+(
+    video_path       varchar(255)                          null,
+    episode_path     varchar(255)                          null,
+    password         varchar(32) default '-1'              null,
+    mediacenter_name varchar(32) default 'OpenMediaCenter' null,
+    TMDB_grabbing    tinyint                               null,
+    DarkMode         tinyint     default 0                 null
+);
+-- +goose StatementEnd
+-- +goose StatementBegin
+create table if not exists tags
+(
+    tag_id   int auto_increment
+        primary key,
+    tag_name varchar(50) null
+);
+-- +goose StatementEnd
+-- +goose StatementBegin
+create table if not exists tvshow
+(
+    name       varchar(100) null,
+    thumbnail  mediumblob   null,
+    id         int auto_increment
+        primary key,
+    foldername varchar(100) null
+);
+-- +goose StatementEnd
+-- +goose StatementBegin
+create table if not exists tvshow_episodes
+(
+    id        int auto_increment
+        primary key,
+    name      varchar(100) null,
+    season    int          null,
+    poster    mediumblob   null,
+    tvshow_id int          null,
+    episode   int          null,
+    filename  varchar(100) null,
+    constraint tvshow_episodes_tvshow_id_fk
+        foreign key (tvshow_id) references tvshow (id)
+);
+-- +goose StatementEnd
+-- +goose StatementBegin
+create table if not exists videos
+(
+    movie_id    int auto_increment
+        primary key,
+    movie_name  varchar(200)                         null,
+    movie_url   varchar(250)                         null,
+    thumbnail   mediumblob                           null,
+    poster      mediumblob                           null,
+    likes       int      default 0                   null,
+    quality     int      default 0                   null,
+    length      int      default 0                   null comment 'in seconds',
+    create_date datetime default current_timestamp() null
+);
+-- +goose StatementEnd
+-- +goose StatementBegin
+create table if not exists actors_videos
+(
+    actor_id int null,
+    video_id int null,
+    constraint actors_videos_actors_id_fk
+        foreign key (actor_id) references actors (actor_id),
+    constraint actors_videos_videos_movie_id_fk
+        foreign key (video_id) references videos (movie_id)
+);
+-- +goose StatementEnd
+-- +goose StatementBegin
+create index if not exists actors_videos_actor_id_index
+    on actors_videos (actor_id);
+-- +goose StatementEnd
+-- +goose StatementBegin
+create index if not exists actors_videos_video_id_index
+    on actors_videos (video_id);
+-- +goose StatementEnd
+-- +goose StatementBegin
+create table if not exists video_tags
+(
+    tag_id   int null,
+    video_id int null,
+    constraint video_tags_tags_tag_id_fk
+        foreign key (tag_id) references tags (tag_id),
+    constraint video_tags_videos_movie_id_fk
+        foreign key (video_id) references videos (movie_id)
+            on delete cascade
+);
+
+-- +goose StatementEnd
+-- +goose StatementBegin
+INSERT IGNORE INTO tags (tag_id, tag_name)
+VALUES (2, 'fullhd');
+-- +goose StatementEnd
+-- +goose StatementBegin
+INSERT IGNORE INTO tags (tag_id, tag_name)
+VALUES (3, 'lowquality');
+-- +goose StatementEnd
+-- +goose StatementBegin
+INSERT IGNORE INTO tags (tag_id, tag_name)
+VALUES (4, 'hd');
+-- +goose StatementEnd
+-- +goose StatementBegin
+INSERT IGNORE INTO settings (video_path, episode_path, password, mediacenter_name)
+VALUES ('./videos/', './tvshows/', -1, 'OpenMediaCenter');
+
+
+-- +goose StatementEnd
+
+-- +goose Down

apiGo/database/migrations/20210927235150_relese_date.sql

@@ -0,0 +1,12 @@
+-- +goose Up
+-- +goose StatementBegin
+alter table videos
+    add release_date date null;
+
+-- +goose StatementEnd
+
+-- +goose Down
+-- +goose StatementBegin
+alter table videos
+    drop release_date;
+-- +goose StatementEnd