Database basic CRUD (#27)

* started schema

* db schemas beginning

* first db schema gen

* added sqlc generation with go generate and sqlite driver

* i think these dependencies are needed

* added IF NOT EXISTS to create and CRUD for each table

* fixed missing columns

* added missing field

* fixed code generation with sqlc

backend/database/sql/sqlcgen/release_groups.sql.go

@@ -0,0 +1,60 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.28.0
+// source: release_groups.sql
+
+package sqlcgen
+
+import (
+	"context"
+)
+
+const createReleaseGroup = `-- name: CreateReleaseGroup :one
+INSERT INTO release_groups (name) VALUES (?)
+RETURNING id, name, cover_art_id
+`
+
+func (q *Queries) CreateReleaseGroup(ctx context.Context, name string) (ReleaseGroup, error) {
+	row := q.db.QueryRowContext(ctx, createReleaseGroup, name)
+	var i ReleaseGroup
+	err := row.Scan(&i.ID, &i.Name, &i.CoverArtID)
+	return i, err
+}
+
+const deleteReleaseGroup = `-- name: DeleteReleaseGroup :exec
+DELETE FROM release_groups 
+WHERE id =?
+`
+
+func (q *Queries) DeleteReleaseGroup(ctx context.Context, id int64) error {
+	_, err := q.db.ExecContext(ctx, deleteReleaseGroup, id)
+	return err
+}
+
+const getReleaseGroup = `-- name: GetReleaseGroup :one
+SELECT id, name, cover_art_id FROM release_groups 
+WHERE id = ? LIMIT 1
+`
+
+func (q *Queries) GetReleaseGroup(ctx context.Context, id int64) (ReleaseGroup, error) {
+	row := q.db.QueryRowContext(ctx, getReleaseGroup, id)
+	var i ReleaseGroup
+	err := row.Scan(&i.ID, &i.Name, &i.CoverArtID)
+	return i, err
+}
+
+const updateReleaseGroup = `-- name: UpdateReleaseGroup :exec
+UPDATE release_groups 
+SET name = ?
+WHERE id =?
+`
+
+type UpdateReleaseGroupParams struct {
+	Name string
+	ID   int64
+}
+
+func (q *Queries) UpdateReleaseGroup(ctx context.Context, arg UpdateReleaseGroupParams) error {
+	_, err := q.db.ExecContext(ctx, updateReleaseGroup, arg.Name, arg.ID)
+	return err
+}