dataset 上传文件

routers/datasets.go

@@ -2,11 +2,14 @@ package routers
 
 import (
 	"encoding/json"
+	"fmt"
+	"io"
 	"io/ioutil"
 	"main/configs"
 	"main/models"
 	"main/utils"
 	"net/http"
+	"os"
 
 	"github.com/gorilla/mux"
 )
@@ -60,6 +63,81 @@ func DatasetsPost(w http.ResponseWriter, r *http.Request) {
 	})
 }
 
+// 上传图片文件
+func DatasetsUpload(w http.ResponseWriter, r *http.Request) {
+	models.AccountRead(w, r, func(account *models.Account) {
+		// 獲取數據集
+		dataset := models.Dataset{ID: utils.ParamInt(mux.Vars(r)["dataset_id"], 0)}
+		if err := configs.ORMDB().Find(&dataset).Error; err != nil {
+			w.WriteHeader(http.StatusNotFound)
+			w.Write([]byte("404 - Not Found"))
+			return
+		}
+		// 只能修改自己的數據集, 除非是管理員
+		if dataset.UserID != account.ID && !account.Admin {
+			w.WriteHeader(http.StatusForbidden)
+			w.Write([]byte("403 - Forbidden"))
+			return
+		}
+		// 解析 HTTP 请求中的多个文件 (限制上传文件的大小为 32MB)
+		if err := r.ParseMultipartForm(32 << 20); err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		// 遍历所有上传的文件
+		for _, fileHeaders := range r.MultipartForm.File {
+			for _, fileHeader := range fileHeaders {
+				// 打开上传的文件
+				file, err := fileHeader.Open()
+				if err != nil {
+					http.Error(w, err.Error(), http.StatusInternalServerError)
+					return
+				}
+				defer file.Close()
+
+				// 在本地文件夹中创建一个新文件
+				localFile, err := os.Create(fmt.Sprintf("data/dataset/%d/%s", dataset.ID, fileHeader.Filename))
+				if err != nil {
+					http.Error(w, err.Error(), http.StatusInternalServerError)
+					return
+				}
+				defer localFile.Close()
+
+				// 将上传文件的内容复制到本地文件
+				_, err = io.Copy(localFile, file)
+				if err != nil {
+					http.Error(w, err.Error(), http.StatusInternalServerError)
+					return
+				}
+
+				// 将文件名添加到數據集中
+				dataset.Images = append(dataset.Images, fileHeader.Filename)
+			}
+		}
+
+		// 去除重复项
+		uniqueImages := make(map[string]bool)
+		for _, image := range dataset.Images {
+			uniqueImages[image] = true
+		}
+
+		// 转换为切片
+		dataset.Images = []string{}
+		for image := range uniqueImages {
+			dataset.Images = append(dataset.Images, image)
+		}
+
+		// 保存數據集
+		if err := configs.ORMDB().Save(&dataset).Error; err != nil {
+			w.WriteHeader(http.StatusInternalServerError)
+			w.Write([]byte("500 - Internal Server Error"))
+			return
+		}
+		w.Header().Set("Content-Type", "application/json; charset=utf-8")
+		w.Write(utils.ToJSON(dataset))
+	})
+}
+
 // 獲取數據集
 func DatasetsItemGet(w http.ResponseWriter, r *http.Request) {
 	dataset := models.Dataset{ID: utils.ParamInt(mux.Vars(r)["dataset_id"], 0)}