/
exec.go
101 lines (87 loc) · 2.34 KB
/
exec.go
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/*
* Copyright 2022 The NanoBus Authors.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/.
*/
package sql
import (
"context"
"github.com/jmoiron/sqlx"
"github.com/nanobus/nanobus/pkg/actions"
"github.com/nanobus/nanobus/pkg/config"
"github.com/nanobus/nanobus/pkg/resolve"
"github.com/nanobus/nanobus/pkg/resource"
)
func ExecLoader(ctx context.Context, with interface{}, resolver resolve.ResolveAs) (actions.Action, error) {
c := ExecConfig{}
if err := config.Decode(with, &c); err != nil {
return nil, err
}
var resources resource.Resources
if err := resolve.Resolve(resolver,
"resource:lookup", &resources); err != nil {
return nil, err
}
db, err := resource.Get[*sqlx.DB](resources, c.Resource)
if err != nil {
return nil, err
}
return ExecAction(db, &c), nil
}
func ExecAction(
db *sqlx.DB,
config *ExecConfig) actions.Action {
return func(ctx context.Context, data actions.Data) (interface{}, error) {
var err error
var input interface{} = map[string]interface{}(data)
if config.Data != nil {
input, err = config.Data.Eval(data)
if err != nil {
return nil, err
}
}
if multi, ok := input.([]interface{}); ok {
tx, err := db.Begin()
if err != nil {
return nil, err
}
defer tx.Rollback() // nolint:errcheck
for _, item := range multi {
if single, ok := item.(map[string]interface{}); ok {
args := make([]interface{}, len(config.Args))
for i, expr := range config.Args {
var err error
if args[i], err = expr.Eval(single); err != nil {
return nil, err
}
}
_, err := tx.Exec(config.SQL, args...)
if err != nil {
return nil, err
}
// if tag.RowsAffected() == 0 {
// return errors.New("no rows effected")
// }
}
}
} else if single, ok := input.(map[string]interface{}); ok {
args := make([]interface{}, len(config.Args))
for i, expr := range config.Args {
var err error
if args[i], err = expr.Eval(single); err != nil {
return nil, err
}
}
_, err := db.Exec(config.SQL, args...)
if err != nil {
return nil, err
}
// if tag.RowsAffected() == 0 {
// return nil, errors.New("no rows effected")
// }
}
return nil, nil
}
}