117 lines
2.3 KiB
Go
117 lines
2.3 KiB
Go
package db
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import (
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"context"
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"fmt"
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"sync"
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"time"
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"github.com/jmoiron/sqlx"
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)
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type AllowedIds interface {
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~uint | ~string
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}
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type InsertId[T AllowedIds] struct {
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id T
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fieldName string
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tableName string
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}
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type SyncDbOperations struct {
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errChan chan error
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wg sync.WaitGroup
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}
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func (s *SyncDbOperations) Wait() error {
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return WaitSync(&s.wg, s.errChan)
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}
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func WaitSync(wg *sync.WaitGroup, errChan chan error) error {
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wgDone := make(chan struct{})
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go func() {
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wg.Wait()
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close(wgDone)
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}()
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select {
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case <-wgDone:
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return nil
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case err := <-errChan:
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close(wgDone)
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return err
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}
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}
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type Insertable[T AllowedIds] interface {
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Insert(tx *sqlx.Tx, relId *InsertId[T]) error
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InsertCtx(ctx context.Context, tx *sqlx.Tx, relId *InsertId[T]) error
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}
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func InsertWithCtx[T AllowedIds, I Insertable[T]](tx *sqlx.Tx, data I, relId *InsertId[T]) error {
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ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
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defer cancel()
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return data.InsertCtx(ctx, tx, relId)
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}
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func InsertSlice[T AllowedIds, I Insertable[T]](tx *sqlx.Tx, data []I, relId *InsertId[T]) error {
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ctx, cancel := context.WithTimeout(context.Background(), 20*time.Second)
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defer cancel()
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for i := range data {
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err := data[i].InsertCtx(ctx, tx, relId)
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if err != nil {
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return err
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}
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}
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return nil
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}
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func InsertSliceParallel[T AllowedIds, I Insertable[T]](syncDb *SyncDbOperations, tx *sqlx.Tx, data []I, relId *InsertId[T]) {
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syncDb.wg.Add(1)
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wg := sync.WaitGroup{}
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errChan := make(chan error)
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defer close(errChan)
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for i := range data {
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go func() {
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wg.Add(1)
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ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
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defer cancel()
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errChan <- data[i].InsertCtx(ctx, tx, relId)
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wg.Done()
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}()
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}
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err := WaitSync(&wg, errChan)
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if err != nil {
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syncDb.errChan <- err
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}
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syncDb.wg.Done()
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}
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func InsertSimpleSliceToTable[T AllowedIds, I Insertable[T]](tx *sqlx.Tx, data []I, relId *InsertId[T]) error {
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query := fmt.Sprintf(`
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INSERT INTO %s (%s, value)
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VALUES (:id, :value)`, relId.tableName, relId.fieldName)
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ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
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defer cancel()
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for i := range data {
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_, err := tx.ExecContext(ctx, query, relId.id, data[i])
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if err != nil {
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return err
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}
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}
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return nil
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}
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