app/binary_service.go

@@ -0,0 +1,22 @@
+package app
+
+import (
+	"owl-blogs/app/repository"
+	"owl-blogs/domain/model"
+)
+
+type BinaryService struct {
+	repo repository.BinaryRepository
+}
+
+func NewBinaryFileService(repo repository.BinaryRepository) *BinaryService {
+	return &BinaryService{repo: repo}
+}
+
+func (s *BinaryService) Create(name string, file []byte) (*model.BinaryFile, error) {
+	return s.repo.Create(name, file)
+}
+
+func (s *BinaryService) FindById(id string) (*model.BinaryFile, error) {
+	return s.repo.FindById(id)
+}

app/entry_register.go

@@ -47,5 +47,12 @@ func (r *EntryTypeRegistry) Type(name string) (model.Entry, error) {
 	if _, ok := r.types[name]; !ok {
 		return nil, errors.New("entry type not registered")
 	}
-	return r.types[name], nil
+
+	val := reflect.ValueOf(r.types[name])
+	if val.Kind() == reflect.Ptr {
+		val = reflect.Indirect(val)
+	}
+	newEntry := reflect.New(val.Type()).Interface().(model.Entry)
+
+	return newEntry, nil
 }

app/repository/interfaces.go

@@ -12,3 +12,8 @@ type EntryRepository interface {
 	FindById(id string) (model.Entry, error)
 	FindAll(types *[]string) ([]model.Entry, error)
 }
+
+type BinaryRepository interface {
+	Create(name string, data []byte) (*model.BinaryFile, error)
+	FindById(id string) (*model.BinaryFile, error)
+}

cmd/owl/main.go

@@ -14,9 +14,12 @@ func App(db infra.Database) *web.WebApp {
 
 	registry.Register(&model.ImageEntry{})
 
-	repo := infra.NewEntryRepository(db, registry)
-	entryService := app.NewEntryService(repo)
-	return web.NewWebApp(entryService, registry)
+	entryRepo := infra.NewEntryRepository(db, registry)
+	binRepo := infra.NewBinaryFileRepo(db)
+
+	entryService := app.NewEntryService(entryRepo)
+	binaryService := app.NewBinaryFileService(binRepo)
+	return web.NewWebApp(entryService, registry, binaryService)
 
 }
 

domain/model/binary_file.go

@@ -0,0 +1,7 @@
+package model
+
+type BinaryFile struct {
+	Id   string
+	Name string
+	Data []byte
+}

domain/model/image_entry.go

@@ -9,7 +9,7 @@ type ImageEntry struct {
 }
 
 type ImageEntryMetaData struct {
-	ImagePath string `owl:"inputType=file"`
+	ImageId string `owl:"inputType=file"`
 	Content string `owl:"inputType=text widget=textarea"`
 }
 

infra/binary_file_repository.go

@@ -0,0 +1,51 @@
+package infra
+
+import (
+	"owl-blogs/domain/model"
+
+	"github.com/google/uuid"
+	"github.com/jmoiron/sqlx"
+)
+
+type sqlBinaryFile struct {
+	Id   string `db:"id"`
+	Name string `db:"name"`
+	Data []byte `db:"data"`
+}
+
+type DefaultBinaryFileRepo struct {
+	db *sqlx.DB
+}
+
+func NewBinaryFileRepo(db Database) *DefaultBinaryFileRepo {
+	sqlxdb := db.Get()
+
+	// Create table if not exists
+	sqlxdb.MustExec(`
+		CREATE TABLE IF NOT EXISTS binary_files (
+			id VARCHAR(255) PRIMARY KEY,
+			name VARCHAR(255) NOT NULL,
+			data BLOB NOT NULL
+		);
+	`)
+
+	return &DefaultBinaryFileRepo{db: sqlxdb}
+}
+
+func (repo *DefaultBinaryFileRepo) Create(name string, data []byte) (*model.BinaryFile, error) {
+	id := uuid.New().String()
+	_, err := repo.db.Exec("INSERT INTO binary_files (id, name, data) VALUES (?, ?, ?)", id, name, data)
+	if err != nil {
+		return nil, err
+	}
+	return &model.BinaryFile{Id: id, Name: name, Data: data}, nil
+}
+
+func (repo *DefaultBinaryFileRepo) FindById(id string) (*model.BinaryFile, error) {
+	var sqlFile sqlBinaryFile
+	err := repo.db.Get(&sqlFile, "SELECT * FROM binary_files WHERE id = ?", id)
+	if err != nil {
+		return nil, err
+	}
+	return &model.BinaryFile{Id: sqlFile.Id, Name: sqlFile.Name, Data: sqlFile.Data}, nil
+}

infra/binary_file_repository_test.go

@@ -0,0 +1,47 @@
+package infra_test
+
+import (
+	"owl-blogs/app/repository"
+	"owl-blogs/infra"
+	"owl-blogs/test"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func setupBinaryRepo() repository.BinaryRepository {
+	db := test.NewMockDb()
+	repo := infra.NewBinaryFileRepo(db)
+	return repo
+}
+
+func TestBinaryRepoCreate(t *testing.T) {
+	repo := setupBinaryRepo()
+
+	file, err := repo.Create("name", []byte("😀 😃 😄 😁"))
+	require.NoError(t, err)
+
+	file, err = repo.FindById(file.Id)
+	require.NoError(t, err)
+	require.Equal(t, file.Name, "name")
+	require.Equal(t, file.Data, []byte("😀 😃 😄 😁"))
+}
+
+func TestBinaryRepoNoSideEffect(t *testing.T) {
+	repo := setupBinaryRepo()
+
+	file, err := repo.Create("name1", []byte("111"))
+	require.NoError(t, err)
+
+	file2, err := repo.Create("name2", []byte("222"))
+	require.NoError(t, err)
+
+	file, err = repo.FindById(file.Id)
+	require.NoError(t, err)
+	file2, err = repo.FindById(file2.Id)
+	require.NoError(t, err)
+	require.Equal(t, file.Name, "name1")
+	require.Equal(t, file.Data, []byte("111"))
+	require.Equal(t, file2.Name, "name2")
+	require.Equal(t, file2.Data, []byte("222"))
+}

infra/entry_repository_test.go

@@ -131,3 +131,39 @@ func TestRepoUpdate(t *testing.T) {
 	require.Equal(t, meta.Number, meta2.Number)
 	require.Equal(t, meta.Date.Unix(), meta2.Date.Unix())
 }
+
+func TestRepoNoSideEffect(t *testing.T) {
+	repo := setupRepo()
+
+	entry1 := &test.MockEntry{}
+	now1 := time.Now()
+	err := repo.Create(entry1, &now1, &test.MockEntryMetaData{
+		Str:    "1",
+		Number: 1,
+		Date:   now1,
+	})
+	require.NoError(t, err)
+
+	entry2 := &test.MockEntry{}
+	now2 := time.Now()
+	err = repo.Create(entry2, &now2, &test.MockEntryMetaData{
+		Str:    "2",
+		Number: 2,
+		Date:   now2,
+	})
+	require.NoError(t, err)
+
+	r1, err := repo.FindById(entry1.ID())
+	require.NoError(t, err)
+	r2, err := repo.FindById(entry2.ID())
+	require.NoError(t, err)
+
+	require.Equal(t, r1.MetaData().(*test.MockEntryMetaData).Str, "1")
+	require.Equal(t, r1.MetaData().(*test.MockEntryMetaData).Number, 1)
+	require.Equal(t, r1.MetaData().(*test.MockEntryMetaData).Date.Unix(), now1.Unix())
+
+	require.Equal(t, r2.MetaData().(*test.MockEntryMetaData).Str, "2")
+	require.Equal(t, r2.MetaData().(*test.MockEntryMetaData).Number, 2)
+	require.Equal(t, r2.MetaData().(*test.MockEntryMetaData).Date.Unix(), now2.Unix())
+
+}

web/app.go

@@ -9,10 +9,11 @@ import (
 type WebApp struct {
 	FiberApp      *fiber.App
 	EntryService  *app.EntryService
+	BinaryService *app.BinaryService
 	Registry      *app.EntryTypeRegistry
 }
 
-func NewWebApp(entryService *app.EntryService, typeRegistry *app.EntryTypeRegistry) *WebApp {
+func NewWebApp(entryService *app.EntryService, typeRegistry *app.EntryTypeRegistry, binService *app.BinaryService) *WebApp {
 	app := fiber.New()
 
 	indexHandler := NewIndexHandler(entryService)
@@ -51,7 +52,12 @@ func NewWebApp(entryService *app.EntryService, typeRegistry *app.EntryTypeRegist
 	// app.Post("/auth/token/", userAuthTokenHandler(repo))
 	// app.Get("/.well-known/oauth-authorization-server", userAuthMetadataHandler(repo))
 	// app.NotFound = http.HandlerFunc(notFoundHandler(repo))
-	return &WebApp{FiberApp: app, EntryService: entryService, Registry: typeRegistry}
+	return &WebApp{
+		FiberApp:      app,
+		EntryService:  entryService,
+		Registry:      typeRegistry,
+		BinaryService: binService,
+	}
 }
 
 func (w *WebApp) Run() {