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pager.go
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pager.go
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package service
import (
"github.com/pagient/pagient-server/internal/model"
"github.com/pkg/errors"
"github.com/rs/zerolog/log"
)
// ListPagers returns all pagers
func (service *defaultService) ListPagers() ([]*model.Pager, error) {
tx, err := service.db.Begin()
if err != nil {
return nil, errors.Wrap(err, "create transaction failed")
}
pagers, err := tx.GetPagers()
if err != nil {
log.Error().
Err(err).
Msg("get all pagers failed")
tx.Rollback()
return nil, errors.Wrap(err, "get all pagers failed")
}
tx.Commit()
return pagers, nil
}
// ShowPager returns a pager by it's id
func (service *defaultService) ShowPager(id uint) (*model.Pager, error) {
tx, err := service.db.Begin()
if err != nil {
return nil, errors.Wrap(err, "create transaction failed")
}
pager, err := tx.GetPager(id)
if err != nil {
log.Error().
Err(err).
Uint("pager ID", id).
Msg("get pager failed")
tx.Rollback()
return nil, errors.Wrapf(err, "get pager %d failed", id)
}
tx.Commit()
return pager, nil
}
// CreatePager creates a new pager
func (service *defaultService) CreatePager(pager *model.Pager) error {
if err := service.validatePager(pager); err != nil {
return errors.WithStack(err)
}
tx, err := service.db.Begin()
if err != nil {
return errors.Wrap(err, "create transaction failed")
}
err = tx.AddPager(pager)
if err != nil {
log.Error().
Err(err).
Msg("add pager failed")
tx.Rollback()
return errors.Wrap(err, "add pager failed")
}
tx.Commit()
return nil
}
func (service *defaultService) validatePager(pager *model.Pager) error {
if err := pager.Validate(); err != nil {
if model.IsValidationErr(err) {
return &modelValidationErr{err.Error()}
}
return errors.Wrap(err, "validate pager failed")
}
return nil
}