feat: images

.air.toml

@@ -7,7 +7,7 @@ tmp_dir = "tmp"
   bin = "tmp\\main.exe"
   cmd = "go build -o ./tmp/main.exe ./main"
   delay = 1000
-  exclude_dir = ["assets", "tmp", "vendor", "testdata", "api\\static\\tinymce", "api\\static\\bootstrap-icons"]
+  exclude_dir = ["assets", "tmp", "vendor", "testdata", "api\\static\\tinymce", "api\\static\\bootstrap-icons", "api\\static\\uploadedImages"]
   exclude_file = []
   exclude_regex = ["_test.go"]
   exclude_unchanged = false

README.md

@@ -46,7 +46,7 @@ of course required, but not necessarily via the `.env` file.
 | PORT                 | int    | port the API will use                         | required                                                                                                              |
 | JWT_SECRET           | string | secret for the jwt auth                       | required                                                                                                              |
 | CORS_ALLOWED_ORIGINS | string | allowed origins for CORS                      | required, semicolon separated list                                                                                    |
-| DB_FILE              | string | path to the sqlite db file                    | required, can be at the root but name still required (e.g. `./gocms.db`) ; have to end up with `.db`                 |
+| DB_FILE              | string | path to the sqlite db file                    | required, can be at the root but name still required (e.g. `./gocms.db`) ; have to end up with `.db`                  |
 | DOCKER_DB_FOLDER     | string | path to the sqlite db file's folder           | required with docker, this will basically be the host machine folder (e.g. `./data`) that contains the sqlite db file |
 | SMTP_EMAIL           | string | sender email                                  | required                                                                                                              |
 | SMTP_PASSWORD        | string | smtp account password                         | required                                                                                                              |

adapters/secondary/gateways/imageRepository.go

@@ -0,0 +1,85 @@
+package gateways
+
+import (
+	entity "GoCMS/adapters/secondary/gateways/models"
+	"GoCMS/domain/gateways"
+	domain "GoCMS/domain/image"
+	"errors"
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+	"mime/multipart"
+	"os"
+)
+
+type ImageRepository struct {
+	db *gorm.DB
+}
+
+func NewImageRepository(db *gorm.DB) *ImageRepository {
+	return &ImageRepository{db}
+}
+
+var contentTypeExtensions = map[string]string{
+	"image/png":     ".png",
+	"image/jpeg":    ".jpeg",
+	"image/webp":    ".webp",
+	"image/svg+xml": ".svg",
+}
+
+func mapImageToDomain(image entity.Image) domain.Image {
+	return domain.FromDB(
+		image.ID,
+		image.Path,
+		image.PostID,
+		image.CreatedAt,
+		image.UpdatedAt,
+	)
+}
+
+func (i ImageRepository) Create(file multipart.File, fileHeader multipart.FileHeader) (domain.Image, error) {
+	fileBytes := make([]byte, fileHeader.Size)
+	_, err := file.Read(fileBytes)
+	if err != nil {
+		return domain.Image{}, err
+	}
+
+	err = os.MkdirAll("api/static/uploadedImages/", 0666)
+	if err != nil {
+		return domain.Image{}, err
+	}
+
+	contentType := fileHeader.Header.Get("Content-Type")
+	extension := contentTypeExtensions[contentType]
+	if extension == "" {
+		return domain.Image{}, errors.New("the file must be a PNG, JPEG, WEBP, or SVG image")
+	}
+
+	newName := uuid.NewString() + extension
+	err = os.WriteFile("api/static/uploadedImages/"+newName, fileBytes, 0666)
+	if err != nil {
+		return domain.Image{}, err
+	}
+
+	newImage := i.db.Create(&domain.Image{Path: "/static/uploadedImages/" + newName})
+	var createdImage entity.Image
+	newImage.Scan(&createdImage)
+
+	return mapImageToDomain(createdImage), nil
+}
+
+func (i ImageRepository) Delete(id uint32) error {
+	var image entity.Image
+	err := i.db.Model(&entity.Image{}).First(&image, id).Error
+	if err != nil {
+		return err
+	}
+
+	err = os.Remove("api" + image.Path)
+	if err != nil {
+		return err
+	}
+
+	return i.db.Delete(&entity.Image{}, id).Error
+}
+
+var _ gateways.IImageRepository = &ImageRepository{}

adapters/secondary/gateways/models/image.go

@@ -0,0 +1,15 @@
+package models
+
+import (
+	"gorm.io/gorm"
+	"time"
+)
+
+type Image struct {
+	gorm.Model
+	ID        uint32 `gorm:"primary_key;auto_increment;not_null"`
+	Path      string
+	PostID    uint32
+	CreatedAt time.Time `gorm:"autoCreateTime"`
+	UpdatedAt time.Time `gorm:"autoUpdateTime"`
+}

adapters/secondary/gateways/models/post.go

@@ -10,6 +10,7 @@ type Post struct {
 	ID        uint32 `gorm:"primary_key;auto_increment;not_null"`
 	Title     string
 	Body      string
+	Images    []*Image  `gorm:"many2many:post_images;"`
 	CreatedAt time.Time `gorm:"autoCreateTime"`
 	UpdatedAt time.Time `gorm:"autoUpdateTime"`
 }

adapters/secondary/gateways/postRepository.go

@@ -16,12 +16,12 @@ func NewPostRepository(db *gorm.DB) *PostRepository {
 }
 
 func mapPostToDomain(post entity.Post) domain.Post {
-	return domain.FromDb(post.ID, post.Title, post.Body, post.CreatedAt, post.UpdatedAt)
+	return domain.FromDb(post.ID, post.Title, post.Body, post.Images, post.CreatedAt, post.UpdatedAt)
 }
 
 func (a *PostRepository) Get(id uint32) (domain.Post, error) {
 	var post entity.Post
-	err := a.db.Model(&entity.Post{}).First(&post, id).Error
+	err := a.db.Model(&entity.Post{}).Preload("Images").First(&post, id).Error
 	if err != nil {
 		return domain.Post{}, err
 	}
@@ -69,15 +69,49 @@ func (a *PostRepository) GetAll() []domain.Post {
 	return domainPosts
 }
 
-func (a *PostRepository) UpdateBody(id uint32, body string) error {
+func (a *PostRepository) UpdateBody(id uint32, body string) (domain.Post, error) {
 	var localPost entity.Post
 	err := a.db.Model(&entity.Post{}).First(&localPost, id).Error
 	if err != nil {
-		return err
+		return domain.Post{}, err
 	}
 
 	localPost.Body = body
 	err = a.db.Save(&localPost).Error
+	if err != nil {
+		return domain.Post{}, err
+	}
+
+	newPost := domain.FromDb(
+		localPost.ID,
+		localPost.Title,
+		localPost.Body,
+		localPost.Images,
+		localPost.CreatedAt,
+		localPost.UpdatedAt,
+	)
+
+	return newPost, nil
+}
+
+func (a *PostRepository) Delete(id uint32) error {
+	return a.db.Delete(&entity.Post{}, id).Error
+}
+
+func (a *PostRepository) AddImage(postId uint32, imageId uint32) error {
+	var localPost entity.Post
+	err := a.db.Model(&entity.Post{}).First(&localPost, postId).Error
+	if err != nil {
+		return err
+	}
+
+	var localImage entity.Image
+	err = a.db.Model(&entity.Image{}).First(&localImage, imageId).Error
+	if err != nil {
+		return err
+	}
+
+	err = a.db.Model(&localPost).Association("Images").Append(&localImage)
 	if err != nil {
 		return err
 	}
@@ -85,8 +119,4 @@ func (a *PostRepository) UpdateBody(id uint32, body string) error {
 	return nil
 }
 
-func (a *PostRepository) Delete(id uint32) error {
-	return a.db.Delete(&entity.Post{}, id).Error
-}
-
 var _ gateways.IPostRepository = &PostRepository{}

adapters/secondary/gateways/web/templates/postEdit.html

@@ -30,7 +30,7 @@
         </div>
     </div>
     <div class="text-black-50 d-flex align-items-center justify-content-center h-100 py-3">
-        <textarea id="postBody" name="postBody">{{.Body}}</textarea>
+        <textarea id="postBody" name="postBody">{{.Post.Body}}</textarea>
     </div>
 </form>
 
@@ -49,43 +49,43 @@
         },
         license_key: 'gpl',
         images_upload_handler: (blobInfo, progress) => new Promise((resolve, reject) => {
-            // const xhr = new XMLHttpRequest();
-            // xhr.withCredentials = false;
-            // xhr.open('POST', 'postAcceptor.php');
-            //
-            // xhr.upload.onprogress = (e) => {
-            //     progress(e.loaded / e.total * 100);
-            // };
-            //
-            // xhr.onload = () => {
-            //     if (xhr.status === 403) {
-            //         reject({message: 'HTTP Error: ' + xhr.status, remove: true});
-            //         return;
-            //     }
-            //
-            //     if (xhr.status < 200 || xhr.status >= 300) {
-            //         reject('HTTP Error: ' + xhr.status);
-            //         return;
-            //     }
-            //
-            //     const json = JSON.parse(xhr.responseText);
-            //
-            //     if (!json || typeof json.location != 'string') {
-            //         reject('Invalid JSON: ' + xhr.responseText);
-            //         return;
-            //     }
-            //
-            //     resolve(json.location);
-            // };
-            //
-            // xhr.onerror = () => {
-            //     reject('Image upload failed due to a XHR Transport error. Code: ' + xhr.status);
-            // };
-            //
-            // const formData = new FormData();
-            // formData.append('file', blobInfo.blob(), blobInfo.filename());
-            //
-            // xhr.send(formData);
+            const xhr = new XMLHttpRequest();
+            xhr.withCredentials = false;
+            xhr.open('POST', `/post/{{.Post.ID}}/image/create`);
+
+            xhr.upload.onprogress = (e) => {
+                progress(e.loaded / e.total * 100);
+            };
+
+            xhr.onload = () => {
+                if (xhr.status === 403) {
+                    reject({message: 'HTTP Error: ' + xhr.status, remove: true});
+                    return;
+                }
+
+                if (xhr.status < 200 || xhr.status >= 300) {
+                    reject('HTTP Error: ' + xhr.status);
+                    return;
+                }
+
+                const json = JSON.parse(xhr.responseText);
+
+                if (!json || typeof json.location != 'string') {
+                    reject('Invalid JSON: ' + xhr.responseText);
+                    return;
+                }
+
+                resolve(`http{{ if .Secured }}s{{ end }}://${window.location.host}${json.location}`);
+            };
+
+            xhr.onerror = () => {
+                reject('Image upload failed due to a XHR Transport error. Code: ' + xhr.status);
+            };
+
+            const formData = new FormData();
+            formData.append('file', blobInfo.blob(), blobInfo.filename());
+
+            xhr.send(formData);
         }),
     })
 </script>

api/dependecyInjection.go

@@ -11,18 +11,20 @@ import (
 )
 
 type UseCases struct {
-	CreatePostUseCase *useCases.CreatePostUseCase
-	GetPostUseCase    *useCases.GetPostUseCase
-	ListPostsUseCase  *useCases.ListPostsUseCase
-	UpdatePostUseCase *useCases.UpdatePostUseCase
-	DeletePostUseCase *useCases.DeletePostUseCase
-	GetUserUseCase    *useCases.GetUserUseCase
-	CreateUserUseCase *useCases.CreateUserUseCase
-	UpdateUserUseCase *useCases.UpdateUserUseCase
-	DeleteUserUseCase *useCases.DeleteUserUseCase
-	ListUsersUseCase  *useCases.ListUsersUseCase
-	GetPageUseCase    *useCases.GetPageUseCase
-	SendMailUseCase   *useCases.SendMailUseCase
+	CreatePostUseCase  *useCases.CreatePostUseCase
+	GetPostUseCase     *useCases.GetPostUseCase
+	ListPostsUseCase   *useCases.ListPostsUseCase
+	UpdatePostUseCase  *useCases.UpdatePostUseCase
+	DeletePostUseCase  *useCases.DeletePostUseCase
+	GetUserUseCase     *useCases.GetUserUseCase
+	CreateUserUseCase  *useCases.CreateUserUseCase
+	UpdateUserUseCase  *useCases.UpdateUserUseCase
+	DeleteUserUseCase  *useCases.DeleteUserUseCase
+	ListUsersUseCase   *useCases.ListUsersUseCase
+	GetPageUseCase     *useCases.GetPageUseCase
+	SendMailUseCase    *useCases.SendMailUseCase
+	CreateImageUseCase *useCases.CreateImageUseCase
+	DeleteImageUseCase *useCases.DeleteImageUseCase
 }
 
 var Container *UseCases
@@ -48,18 +50,20 @@ func InitContainer() {
 
 	_ = digContainer.Provide(func(db *gorm.DB) *UseCases {
 		return &UseCases{
-			CreatePostUseCase: useCases.NewCreatePostUseCase(db),
-			GetPostUseCase:    useCases.NewGetPostUseCase(db),
-			ListPostsUseCase:  useCases.NewListPostsUseCase(db),
-			UpdatePostUseCase: useCases.NewUpdatePostUseCase(db),
-			DeletePostUseCase: useCases.NewDeletePostUseCase(db),
-			GetUserUseCase:    useCases.NewGetUserUseCase(db),
-			CreateUserUseCase: useCases.NewCreateUserUseCase(db),
-			UpdateUserUseCase: useCases.NewUpdateUserUseCase(db),
-			DeleteUserUseCase: useCases.NewDeleteUserUseCase(db),
-			ListUsersUseCase:  useCases.NewListUsersUseCase(db),
-			GetPageUseCase:    useCases.NewGetPageUseCase(),
-			SendMailUseCase:   useCases.NewSendMailUseCase(),
+			CreatePostUseCase:  useCases.NewCreatePostUseCase(db),
+			GetPostUseCase:     useCases.NewGetPostUseCase(db),
+			ListPostsUseCase:   useCases.NewListPostsUseCase(db),
+			UpdatePostUseCase:  useCases.NewUpdatePostUseCase(db),
+			DeletePostUseCase:  useCases.NewDeletePostUseCase(db),
+			GetUserUseCase:     useCases.NewGetUserUseCase(db),
+			CreateUserUseCase:  useCases.NewCreateUserUseCase(db),
+			UpdateUserUseCase:  useCases.NewUpdateUserUseCase(db),
+			DeleteUserUseCase:  useCases.NewDeleteUserUseCase(db),
+			ListUsersUseCase:   useCases.NewListUsersUseCase(db),
+			GetPageUseCase:     useCases.NewGetPageUseCase(),
+			SendMailUseCase:    useCases.NewSendMailUseCase(),
+			CreateImageUseCase: useCases.NewCreateImageUseCase(db),
+			DeleteImageUseCase: useCases.NewDeleteImageUseCase(db),
 		}
 	})
 	err := digContainer.Invoke(func(useCases *UseCases) { Container = useCases })

api/image.go

@@ -0,0 +1,38 @@
+package api
+
+import (
+	"encoding/json"
+	"github.com/go-chi/chi/v5"
+	"net/http"
+	"strconv"
+)
+
+func postImage(w http.ResponseWriter, r *http.Request) {
+	_ = r.ParseForm()
+
+	id := chi.URLParam(r, "id")
+	idInt, _ := strconv.Atoi(id)
+
+	file, fileHeader, err := r.FormFile("file")
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+
+	newImage, err := Container.CreateImageUseCase.CreateImage(file, *fileHeader)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	err = Container.UpdatePostUseCase.AddImage(uint32(idInt), newImage.ID)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	newJson := map[string]interface{}{"location": newImage.Path}
+	newJsonBytes, _ := json.Marshal(newJson)
+
+	_, _ = w.Write(newJsonBytes)
+}

api/page.go

@@ -1,18 +1,13 @@
 package api
 
 import (
-	"embed"
 	"github.com/go-chi/chi/v5"
 	"html/template"
-	"io/fs"
 	"net/http"
 	"path/filepath"
 	"strings"
 )
 
-//go:embed static
-var staticFolder embed.FS
-
 var headTmpl template.HTML
 
 var contentTypes = map[string]string{
@@ -97,11 +92,10 @@ func InitHeadTmpl() {
 func NewPageRouter() http.Handler {
 	r := chi.NewRouter()
 
-	contentStatic := fs.FS(staticFolder)
-
 	InitHeadTmpl()
 
-	r.Handle("/static/*", StaticFileServerWithContentType(http.FS(contentStatic)))
+	fileServer := StaticFileServerWithContentType(http.Dir("api/static"))
+	r.Handle("/static/*", http.StripPrefix("/static/", fileServer))
 
 	r.Get("/", GetLogin)
 	r.Get(LoginRoute, GetLoginPageHandler(EmptyLoginPage))
@@ -128,6 +122,7 @@ func NewPageRouter() http.Handler {
 		r.Get("/post/{id}/delete", GetPostDeletePage)
 		r.Get("/post/create", GetPostCreatePage)
 		r.Post("/post/create", PostPostCreatePage)
+		r.Post("/post/{id}/image/create", postImage)
 	})
 
 	return r

api/pagePostDelete.go

@@ -1,6 +1,7 @@
 package api
 
 import (
+	"fmt"
 	"github.com/go-chi/chi/v5"
 	"net/http"
 	"strconv"
@@ -13,6 +14,21 @@ func GetPostDeletePage(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	localPost, err := Container.GetPostUseCase.GetPost(uint32(id))
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusNotFound)
+		return
+	}
+
+	fmt.Println(localPost.Images)
+	for _, image := range localPost.Images {
+		err = Container.DeleteImageUseCase.DeleteImage(image.ID)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusNotFound)
+			return
+		}
+	}
+
 	err = Container.DeletePostUseCase.DeletePost(uint32(id))
 	if err != nil {
 		http.Error(w, http.StatusText(400), http.StatusBadRequest)

api/pagePostEdit.go

@@ -1,9 +1,11 @@
 package api
 
 import (
+	"GoCMS/domain/post"
 	"github.com/go-chi/chi/v5"
 	"html/template"
 	"net/http"
+	"os"
 	"strconv"
 )
 
@@ -12,13 +14,14 @@ type PostEditPageAlert struct {
 	Message string
 }
 
-func getPostEditPageTemplate(body string, alert PostEditPageAlert) []byte {
+func getPostEditPageTemplate(post post.Post, alert PostEditPageAlert) []byte {
 	navbarTmpl, _ := Container.GetPageUseCase.GetPage("componentNavbar", nil)
 	postTmpl, _ := Container.GetPageUseCase.GetPage("postEdit", map[string]interface{}{
-		"Navbar": template.HTML(navbarTmpl),
-		"Head":   headTmpl,
-		"Body":   body,
-		"Alert":  alert,
+		"Navbar":  template.HTML(navbarTmpl),
+		"Head":    headTmpl,
+		"Post":    post,
+		"Alert":   alert,
+		"Secured": os.Getenv("ENVIRONMENT") == "production",
 	})
 	return postTmpl
 }
@@ -27,7 +30,7 @@ func PostPostEditPage(w http.ResponseWriter, r *http.Request) {
 	postID := chi.URLParam(r, "id")
 	postIDint, err := strconv.Atoi(postID)
 	if err != nil {
-		_, _ = w.Write(getPostEditPageTemplate("", PostEditPageAlert{
+		_, _ = w.Write(getPostEditPageTemplate(post.Post{}, PostEditPageAlert{
 			IsError: true,
 			Message: "Could not find the requested post.",
 		}))
@@ -37,17 +40,17 @@ func PostPostEditPage(w http.ResponseWriter, r *http.Request) {
 	_ = r.ParseForm()
 	postBody := r.FormValue("postBody")
 
-	post, _ := Container.GetPostUseCase.GetPost(uint32(postIDint))
-	err = Container.UpdatePostUseCase.UpdateBody(post.ID, postBody)
+	getPost, _ := Container.GetPostUseCase.GetPost(uint32(postIDint))
+	updatedPost, err := Container.UpdatePostUseCase.UpdateBody(getPost.ID, postBody)
 	if err != nil {
-		_, _ = w.Write(getPostEditPageTemplate(postBody, PostEditPageAlert{
+		_, _ = w.Write(getPostEditPageTemplate(post.Post{Body: postBody}, PostEditPageAlert{
 			IsError: true,
 			Message: "Could not save the post: " + err.Error(),
 		}))
 		return
 	}
 
-	_, _ = w.Write(getPostEditPageTemplate(postBody, PostEditPageAlert{
+	_, _ = w.Write(getPostEditPageTemplate(updatedPost, PostEditPageAlert{
 		IsError: false,
 		Message: "Post successfully edited!",
 	}))
@@ -61,9 +64,9 @@ func GetPostEditPage(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	post, _ := Container.GetPostUseCase.GetPost(uint32(postIDint))
+	getPost, _ := Container.GetPostUseCase.GetPost(uint32(postIDint))
 
-	_, _ = w.Write(getPostEditPageTemplate(post.Body, PostEditPageAlert{
+	_, _ = w.Write(getPostEditPageTemplate(getPost, PostEditPageAlert{
 		IsError: false,
 		Message: "",
 	}))

domain/gateways/IImageRepository.go

@@ -0,0 +1,11 @@
+package gateways
+
+import (
+	"GoCMS/domain/image"
+	"mime/multipart"
+)
+
+type IImageRepository interface {
+	Create(file multipart.File, fileHeader multipart.FileHeader) (image.Image, error)
+	Delete(id uint32) error
+}

domain/gateways/IPostRepository.go

@@ -9,6 +9,7 @@ type IPostRepository interface {
 	GetByName(name string) (post.Post, error)
 	GetAll() []post.Post
 	Create(post post.Post) (post.Post, error)
-	UpdateBody(id uint32, body string) error
+	UpdateBody(id uint32, body string) (post.Post, error)
 	Delete(id uint32) error
+	AddImage(postId uint32, imageId uint32) error
 }

domain/image/image.go

@@ -0,0 +1,23 @@
+package image
+
+import (
+	"time"
+)
+
+type Image struct {
+	ID        uint32
+	Path      string
+	PostID    uint32
+	CreatedAt time.Time
+	UpdatedAt time.Time
+}
+
+func FromDB(id uint32, path string, postId uint32, createdAt time.Time, updatedAt time.Time) Image {
+	return Image{
+		ID:        id,
+		Path:      path,
+		PostID:    postId,
+		CreatedAt: createdAt,
+		UpdatedAt: updatedAt,
+	}
+}

domain/post/post.go

@@ -1,13 +1,18 @@
 package post
 
-import "time"
+import (
+	entity "GoCMS/adapters/secondary/gateways/models"
+	domain "GoCMS/domain/image"
+	"time"
+)
 
 type Post struct {
-	ID        uint32    `json:"id"`
-	Title     string    `json:"title"`
-	Body      string    `json:"body"`
-	CreatedAt time.Time `json:"created_at"`
-	UpdatedAt time.Time `json:"updated_at"`
+	ID        uint32          `json:"id"`
+	Title     string          `json:"title"`
+	Body      string          `json:"body"`
+	Images    []*domain.Image `json:"images"`
+	CreatedAt time.Time       `json:"created_at"`
+	UpdatedAt time.Time       `json:"updated_at"`
 }
 
 func FromApi(
@@ -24,13 +29,26 @@ func FromDb(
 	id uint32,
 	title string,
 	body string,
+	images []*entity.Image,
 	createdAt time.Time,
 	updatedAt time.Time,
 ) Post {
+	domainImages := make([]*domain.Image, len(images))
+	for i, img := range images {
+		domainImage := domain.FromDB(
+			img.ID,
+			img.Path,
+			img.PostID,
+			img.CreatedAt,
+			img.UpdatedAt,
+		)
+		domainImages[i] = &domainImage
+	}
 	return Post{
 		ID:        id,
 		Title:     title,
 		Body:      body,
+		Images:    domainImages,
 		CreatedAt: createdAt,
 		UpdatedAt: updatedAt,
 	}

useCases/CreateImageUseCase.go

@@ -0,0 +1,22 @@
+package useCases
+
+import (
+	"GoCMS/adapters/secondary/gateways"
+	"GoCMS/domain/image"
+	"gorm.io/gorm"
+	"mime/multipart"
+)
+
+type CreateImageUseCase struct {
+	imageRepository gateways.ImageRepository
+}
+
+func NewCreateImageUseCase(db *gorm.DB) *CreateImageUseCase {
+	return &CreateImageUseCase{
+		imageRepository: *gateways.NewImageRepository(db),
+	}
+}
+
+func (g *CreateImageUseCase) CreateImage(file multipart.File, fileHeader multipart.FileHeader) (image.Image, error) {
+	return g.imageRepository.Create(file, fileHeader)
+}

useCases/DeleteImageUseCase.go

@@ -0,0 +1,20 @@
+package useCases
+
+import (
+	"GoCMS/adapters/secondary/gateways"
+	"gorm.io/gorm"
+)
+
+type DeleteImageUseCase struct {
+	imageRepository gateways.ImageRepository
+}
+
+func NewDeleteImageUseCase(db *gorm.DB) *DeleteImageUseCase {
+	return &DeleteImageUseCase{
+		imageRepository: *gateways.NewImageRepository(db),
+	}
+}
+
+func (g *DeleteImageUseCase) DeleteImage(imageId uint32) error {
+	return g.imageRepository.Delete(imageId)
+}

useCases/UpdatePostUseCase.go

@@ -2,6 +2,7 @@ package useCases
 
 import (
 	"GoCMS/adapters/secondary/gateways"
+	"GoCMS/domain/post"
 	"gorm.io/gorm"
 )
 
@@ -15,6 +16,10 @@ func NewUpdatePostUseCase(db *gorm.DB) *UpdatePostUseCase {
 	}
 }
 
-func (g *UpdatePostUseCase) UpdateBody(id uint32, body string) error {
+func (g *UpdatePostUseCase) UpdateBody(id uint32, body string) (post.Post, error) {
 	return g.postRepository.UpdateBody(id, body)
 }
+
+func (g *UpdatePostUseCase) AddImage(postId uint32, imageId uint32) error {
+	return g.postRepository.AddImage(postId, imageId)
+}