stash/pkg/sqlite/repository.go

523 lines
13 KiB
Go

package sqlite
import (
"context"
"database/sql"
"errors"
"fmt"
"strings"
"github.com/jmoiron/sqlx"
"github.com/stashapp/stash/pkg/models"
)
const idColumn = "id"
type repository struct {
tableName string
idColumn string
}
func (r *repository) getAll(ctx context.Context, id int, f func(rows *sqlx.Rows) error) error {
stmt := fmt.Sprintf("SELECT * FROM %s WHERE %s = ?", r.tableName, r.idColumn)
return r.queryFunc(ctx, stmt, []interface{}{id}, false, f)
}
func (r *repository) destroyExisting(ctx context.Context, ids []int) error {
for _, id := range ids {
exists, err := r.exists(ctx, id)
if err != nil {
return err
}
if !exists {
return fmt.Errorf("%s %d does not exist in %s", r.idColumn, id, r.tableName)
}
}
return r.destroy(ctx, ids)
}
func (r *repository) destroy(ctx context.Context, ids []int) error {
for _, id := range ids {
stmt := fmt.Sprintf("DELETE FROM %s WHERE %s = ?", r.tableName, r.idColumn)
if _, err := dbWrapper.Exec(ctx, stmt, id); err != nil {
return err
}
}
return nil
}
func (r *repository) exists(ctx context.Context, id int) (bool, error) {
stmt := fmt.Sprintf("SELECT %s FROM %s WHERE %s = ? LIMIT 1", r.idColumn, r.tableName, r.idColumn)
stmt = r.buildCountQuery(stmt)
c, err := r.runCountQuery(ctx, stmt, []interface{}{id})
if err != nil {
return false, err
}
return c == 1, nil
}
func (r *repository) buildCountQuery(query string) string {
return "SELECT COUNT(*) as count FROM (" + query + ") as temp"
}
func (r *repository) runCountQuery(ctx context.Context, query string, args []interface{}) (int, error) {
result := struct {
Int int `db:"count"`
}{0}
// Perform query and fetch result
if err := dbWrapper.Get(ctx, &result, query, args...); err != nil && !errors.Is(err, sql.ErrNoRows) {
return 0, err
}
return result.Int, nil
}
func (r *repository) runIdsQuery(ctx context.Context, query string, args []interface{}) ([]int, error) {
var result []struct {
Int int `db:"id"`
}
if err := dbWrapper.Select(ctx, &result, query, args...); err != nil && !errors.Is(err, sql.ErrNoRows) {
return []int{}, fmt.Errorf("running query: %s [%v]: %w", query, args, err)
}
vsm := make([]int, len(result))
for i, v := range result {
vsm[i] = v.Int
}
return vsm, nil
}
func (r *repository) queryFunc(ctx context.Context, query string, args []interface{}, single bool, f func(rows *sqlx.Rows) error) error {
rows, err := dbWrapper.Queryx(ctx, query, args...)
if err != nil && !errors.Is(err, sql.ErrNoRows) {
return err
}
defer rows.Close()
for rows.Next() {
if err := f(rows); err != nil {
return err
}
if single {
break
}
}
if err := rows.Err(); err != nil {
return err
}
return nil
}
func (r *repository) queryStruct(ctx context.Context, query string, args []interface{}, out interface{}) error {
if err := r.queryFunc(ctx, query, args, true, func(rows *sqlx.Rows) error {
if err := rows.StructScan(out); err != nil {
return err
}
return nil
}); err != nil {
return fmt.Errorf("executing query: %s [%v]: %w", query, args, err)
}
return nil
}
func (r *repository) querySimple(ctx context.Context, query string, args []interface{}, out interface{}) error {
rows, err := dbWrapper.Queryx(ctx, query, args...)
if err != nil && !errors.Is(err, sql.ErrNoRows) {
return err
}
defer rows.Close()
if rows.Next() {
if err := rows.Scan(out); err != nil {
return err
}
}
if err := rows.Err(); err != nil {
return err
}
return nil
}
func (r *repository) buildQueryBody(body string, whereClauses []string, havingClauses []string) string {
if len(whereClauses) > 0 {
body = body + " WHERE " + strings.Join(whereClauses, " AND ") // TODO handle AND or OR
}
if len(havingClauses) > 0 {
body = body + " GROUP BY " + r.tableName + ".id "
body = body + " HAVING " + strings.Join(havingClauses, " AND ") // TODO handle AND or OR
}
return body
}
func (r *repository) executeFindQuery(ctx context.Context, body string, args []interface{}, sortAndPagination string, whereClauses []string, havingClauses []string, withClauses []string, recursiveWith bool) ([]int, int, error) {
body = r.buildQueryBody(body, whereClauses, havingClauses)
withClause := ""
if len(withClauses) > 0 {
var recursive string
if recursiveWith {
recursive = " RECURSIVE "
}
withClause = "WITH " + recursive + strings.Join(withClauses, ", ") + " "
}
countQuery := withClause + r.buildCountQuery(body)
idsQuery := withClause + body + sortAndPagination
// Perform query and fetch result
var countResult int
var countErr error
var idsResult []int
var idsErr error
countResult, countErr = r.runCountQuery(ctx, countQuery, args)
idsResult, idsErr = r.runIdsQuery(ctx, idsQuery, args)
if countErr != nil {
return nil, 0, fmt.Errorf("error executing count query with SQL: %s, args: %v, error: %s", countQuery, args, countErr.Error())
}
if idsErr != nil {
return nil, 0, fmt.Errorf("error executing find query with SQL: %s, args: %v, error: %s", idsQuery, args, idsErr.Error())
}
return idsResult, countResult, nil
}
func (r *repository) newQuery() queryBuilder {
return queryBuilder{
repository: r,
}
}
func (r *repository) join(j joiner, as string, parentIDCol string) {
t := r.tableName
if as != "" {
t = as
}
j.addLeftJoin(r.tableName, as, fmt.Sprintf("%s.%s = %s", t, r.idColumn, parentIDCol))
}
func (r *repository) innerJoin(j joiner, as string, parentIDCol string) {
t := r.tableName
if as != "" {
t = as
}
j.addInnerJoin(r.tableName, as, fmt.Sprintf("%s.%s = %s", t, r.idColumn, parentIDCol))
}
type joiner interface {
addLeftJoin(table, as, onClause string)
addInnerJoin(table, as, onClause string)
}
type joinRepository struct {
repository
fkColumn string
// fields for ordering
foreignTable string
orderBy string
}
func (r *joinRepository) getIDs(ctx context.Context, id int) ([]int, error) {
var joinStr string
if r.foreignTable != "" {
joinStr = fmt.Sprintf(" INNER JOIN %s ON %[1]s.id = %s.%s", r.foreignTable, r.tableName, r.fkColumn)
}
query := fmt.Sprintf(`SELECT %[2]s.%[1]s as id from %s%s WHERE %s = ?`, r.fkColumn, r.tableName, joinStr, r.idColumn)
if r.orderBy != "" {
query += " ORDER BY " + r.orderBy
}
return r.runIdsQuery(ctx, query, []interface{}{id})
}
func (r *joinRepository) insert(ctx context.Context, id int, foreignIDs ...int) error {
stmt, err := dbWrapper.Prepare(ctx, fmt.Sprintf("INSERT INTO %s (%s, %s) VALUES (?, ?)", r.tableName, r.idColumn, r.fkColumn))
if err != nil {
return err
}
defer stmt.Close()
for _, fk := range foreignIDs {
if _, err := dbWrapper.ExecStmt(ctx, stmt, id, fk); err != nil {
return err
}
}
return nil
}
// insertOrIgnore inserts a join into the table, silently failing in the event that a conflict occurs (ie when the join already exists)
func (r *joinRepository) insertOrIgnore(ctx context.Context, id int, foreignIDs ...int) error {
stmt, err := dbWrapper.Prepare(ctx, fmt.Sprintf("INSERT INTO %s (%s, %s) VALUES (?, ?) ON CONFLICT (%[2]s, %s) DO NOTHING", r.tableName, r.idColumn, r.fkColumn))
if err != nil {
return err
}
defer stmt.Close()
for _, fk := range foreignIDs {
if _, err := dbWrapper.ExecStmt(ctx, stmt, id, fk); err != nil {
return err
}
}
return nil
}
func (r *joinRepository) destroyJoins(ctx context.Context, id int, foreignIDs ...int) error {
stmt := fmt.Sprintf("DELETE FROM %s WHERE %s = ? AND %s IN %s", r.tableName, r.idColumn, r.fkColumn, getInBinding(len(foreignIDs)))
args := make([]interface{}, len(foreignIDs)+1)
args[0] = id
for i, v := range foreignIDs {
args[i+1] = v
}
if _, err := dbWrapper.Exec(ctx, stmt, args...); err != nil {
return err
}
return nil
}
func (r *joinRepository) replace(ctx context.Context, id int, foreignIDs []int) error {
if err := r.destroy(ctx, []int{id}); err != nil {
return err
}
for _, fk := range foreignIDs {
if err := r.insert(ctx, id, fk); err != nil {
return err
}
}
return nil
}
type captionRepository struct {
repository
}
func (r *captionRepository) get(ctx context.Context, id models.FileID) ([]*models.VideoCaption, error) {
query := fmt.Sprintf("SELECT %s, %s, %s from %s WHERE %s = ?", captionCodeColumn, captionFilenameColumn, captionTypeColumn, r.tableName, r.idColumn)
var ret []*models.VideoCaption
err := r.queryFunc(ctx, query, []interface{}{id}, false, func(rows *sqlx.Rows) error {
var captionCode string
var captionFilename string
var captionType string
if err := rows.Scan(&captionCode, &captionFilename, &captionType); err != nil {
return err
}
caption := &models.VideoCaption{
LanguageCode: captionCode,
Filename: captionFilename,
CaptionType: captionType,
}
ret = append(ret, caption)
return nil
})
return ret, err
}
func (r *captionRepository) insert(ctx context.Context, id models.FileID, caption *models.VideoCaption) (sql.Result, error) {
stmt := fmt.Sprintf("INSERT INTO %s (%s, %s, %s, %s) VALUES (?, ?, ?, ?)", r.tableName, r.idColumn, captionCodeColumn, captionFilenameColumn, captionTypeColumn)
return dbWrapper.Exec(ctx, stmt, id, caption.LanguageCode, caption.Filename, caption.CaptionType)
}
func (r *captionRepository) replace(ctx context.Context, id models.FileID, captions []*models.VideoCaption) error {
if err := r.destroy(ctx, []int{int(id)}); err != nil {
return err
}
for _, caption := range captions {
if _, err := r.insert(ctx, id, caption); err != nil {
return err
}
}
return nil
}
type stringRepository struct {
repository
stringColumn string
}
func (r *stringRepository) get(ctx context.Context, id int) ([]string, error) {
query := fmt.Sprintf("SELECT %s from %s WHERE %s = ?", r.stringColumn, r.tableName, r.idColumn)
var ret []string
err := r.queryFunc(ctx, query, []interface{}{id}, false, func(rows *sqlx.Rows) error {
var out string
if err := rows.Scan(&out); err != nil {
return err
}
ret = append(ret, out)
return nil
})
return ret, err
}
func (r *stringRepository) insert(ctx context.Context, id int, s string) (sql.Result, error) {
stmt := fmt.Sprintf("INSERT INTO %s (%s, %s) VALUES (?, ?)", r.tableName, r.idColumn, r.stringColumn)
return dbWrapper.Exec(ctx, stmt, id, s)
}
func (r *stringRepository) replace(ctx context.Context, id int, newStrings []string) error {
if err := r.destroy(ctx, []int{id}); err != nil {
return err
}
for _, s := range newStrings {
if _, err := r.insert(ctx, id, s); err != nil {
return err
}
}
return nil
}
type stashIDRepository struct {
repository
}
type stashIDs []models.StashID
func (s *stashIDs) Append(o interface{}) {
*s = append(*s, o.(models.StashID))
}
func (s *stashIDs) New() interface{} {
return &models.StashID{}
}
func (r *stashIDRepository) get(ctx context.Context, id int) ([]models.StashID, error) {
query := fmt.Sprintf("SELECT stash_id, endpoint, updated_at from %s WHERE %s = ?", r.tableName, r.idColumn)
var ret stashIDs
err := r.queryFunc(ctx, query, []interface{}{id}, false, func(rows *sqlx.Rows) error {
var v stashIDRow
if err := rows.StructScan(&v); err != nil {
return err
}
ret.Append(v.resolve())
return nil
})
return ret, err
}
type filesRepository struct {
repository
}
type relatedFileRow struct {
ID int `db:"id"`
FileID models.FileID `db:"file_id"`
Primary bool `db:"primary"`
}
func idToIndexMap(ids []int) map[int]int {
ret := make(map[int]int)
for i, id := range ids {
ret[id] = i
}
return ret
}
func (r *filesRepository) getMany(ctx context.Context, ids []int, primaryOnly bool) ([][]models.FileID, error) {
var primaryClause string
if primaryOnly {
primaryClause = " AND `primary` = 1"
}
query := fmt.Sprintf("SELECT %s as id, file_id, `primary` from %s WHERE %[1]s IN %[3]s%s", r.idColumn, r.tableName, getInBinding(len(ids)), primaryClause)
idi := make([]interface{}, len(ids))
for i, id := range ids {
idi[i] = id
}
var fileRows []relatedFileRow
if err := r.queryFunc(ctx, query, idi, false, func(rows *sqlx.Rows) error {
var f relatedFileRow
if err := rows.StructScan(&f); err != nil {
return err
}
fileRows = append(fileRows, f)
return nil
}); err != nil {
return nil, err
}
ret := make([][]models.FileID, len(ids))
idToIndex := idToIndexMap(ids)
for _, row := range fileRows {
id := row.ID
fileID := row.FileID
if row.Primary {
// prepend to list
ret[idToIndex[id]] = append([]models.FileID{fileID}, ret[idToIndex[id]]...)
} else {
ret[idToIndex[id]] = append(ret[idToIndex[id]], row.FileID)
}
}
return ret, nil
}
func (r *filesRepository) get(ctx context.Context, id int) ([]models.FileID, error) {
query := fmt.Sprintf("SELECT file_id, `primary` from %s WHERE %s = ?", r.tableName, r.idColumn)
type relatedFile struct {
FileID models.FileID `db:"file_id"`
Primary bool `db:"primary"`
}
var ret []models.FileID
if err := r.queryFunc(ctx, query, []interface{}{id}, false, func(rows *sqlx.Rows) error {
var f relatedFile
if err := rows.StructScan(&f); err != nil {
return err
}
if f.Primary {
// prepend to list
ret = append([]models.FileID{f.FileID}, ret...)
} else {
ret = append(ret, f.FileID)
}
return nil
}); err != nil {
return nil, err
}
return ret, nil
}