检查上传的图片尺寸是否符合要求

business/model/common.go

@@ -1,19 +1,20 @@
 package model
 
+import "strings"
+
 const (
 	ImgTypeLocal = 0 // 京西自己用的，不需要上传至平台
 	ImgTypeMain  = 1 // 商品主图
 	ImgTypeDesc  = 2 // 商品描述详情
+
+	MimeTypeJpeg = "image/jpeg"
+	MimeTypePng  = "image/png"
 )
 
 var (
-	ValidMimeTypes = map[string][]string{
-		"image/jpeg": []string{"jpeg", "jpg"},
-		"image/png":  []string{"png"},
-		// "image/gif":  []string{"gif"}, // 美团不支持GIF
-
-		"video/mpeg": []string{"mpeg", "mpg"},
-		"video/mp4":  []string{"mp4", "m4v"},
+	ValidMimeTypes = map[string]int{
+		MimeTypeJpeg: 1,
+		MimeTypePng:  1,
 	}
 )
 
@@ -33,3 +34,11 @@ type DataResource struct {
 
 	Remark string `orm:"size(1024)" json:"remark"`
 }
+
+func GetValidMimeTypeDesc() (desc string) {
+	strList := []string{}
+	for k := range ValidMimeTypes {
+		strList = append(strList, k)
+	}
+	return strings.Join(strList, ",")
+}