/
service.go
114 lines (94 loc) · 2.75 KB
/
service.go
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package topic
import (
"database/sql"
"github.com/AdhityaRamadhanus/chronicle"
"github.com/AdhityaRamadhanus/chronicle/function"
"github.com/pkg/errors"
)
var (
//ErrNoTopicFound sub-domain specific error
ErrNoTopicFound = errors.New("Cannot find Topic")
)
//Service provide an interface to topic domain service
type Service interface {
CreateTopic(topic chronicle.Topic) (createdTopic chronicle.Topic, err error)
UpdateTopic(topic chronicle.Topic) (updatedTopic chronicle.Topic, err error)
GetTopics(option chronicle.PagingOptions) (chronicle.Topics, int, error)
GetTopicByID(id int) (chronicle.Topic, error)
GetTopicBySlug(slug string) (chronicle.Topic, error)
DeleteTopicByID(id int) error
}
func NewService(topicRepository chronicle.TopicRepository) Service {
return &service{
topicRepository: topicRepository,
}
}
type service struct {
topicRepository chronicle.TopicRepository
}
func (s *service) CreateTopic(topic chronicle.Topic) (createdTopic chronicle.Topic, err error) {
defer func() {
if err != nil && err != ErrNoTopicFound {
err = errors.Wrap(err, function.GetFunctionName(s.CreateTopic))
}
}()
return s.topicRepository.Insert(topic)
}
func (s *service) UpdateTopic(topic chronicle.Topic) (updatedTopic chronicle.Topic, err error) {
defer func() {
if err != nil && err != ErrNoTopicFound {
err = errors.Wrap(err, function.GetFunctionName(s.UpdateTopic))
}
}()
return s.topicRepository.Update(topic)
}
func (s *service) GetTopics(option chronicle.PagingOptions) (topics chronicle.Topics, topicsCount int, err error) {
defer func() {
if err != nil && err != ErrNoTopicFound {
err = errors.Wrap(err, function.GetFunctionName(s.GetTopics))
}
}()
return s.topicRepository.All(option)
}
func (s *service) GetTopicByID(id int) (topic chronicle.Topic, err error) {
defer func() {
if err != nil && err != ErrNoTopicFound {
err = errors.Wrap(err, function.GetFunctionName(s.GetTopicByID))
}
}()
topic, err = s.topicRepository.Find(id)
if err != nil {
switch err {
case sql.ErrNoRows:
return topic, ErrNoTopicFound
default:
return topic, err
}
}
return topic, nil
}
func (s *service) GetTopicBySlug(slug string) (topic chronicle.Topic, err error) {
defer func() {
if err != nil && err != ErrNoTopicFound {
err = errors.Wrap(err, function.GetFunctionName(s.GetTopicBySlug))
}
}()
topic, err = s.topicRepository.FindBySlug(slug)
if err != nil {
switch err {
case sql.ErrNoRows:
return topic, ErrNoTopicFound
default:
return topic, err
}
}
return topic, nil
}
func (s *service) DeleteTopicByID(id int) (err error) {
defer func() {
if err != nil && err != ErrNoTopicFound {
err = errors.Wrap(err, function.GetFunctionName(s.DeleteTopicByID))
}
}()
return s.topicRepository.Delete(id)
}