feat: update template

internal/model/request/file.go

@@ -0,0 +1,35 @@
+package request
+
+import (
+	"path/filepath"
+	"strings"
+)
+
+type UploadFileRequest struct {
+	Folder string `json:"folder" validate:"omitempty,oneof=cover avatar article common"`
+}
+
+// AllowedUploadExts 上传文件扩展名白名单（扩展名 → 期望的真实 MIME）。
+var AllowedUploadExts = map[string]string{
+	// 图片
+	".jpg":  "image/jpeg",
+	".jpeg": "image/jpeg",
+	".png":  "image/png",
+	".gif":  "image/gif",
+	".webp": "image/webp",
+	// 视频
+	".mp4":  "video/mp4",
+	".webm": "video/webm",
+}
+
+// IsAllowedUploadExt 扩展名是否在白名单内（大小写不敏感）
+func IsAllowedUploadExt(ext string) bool {
+	_, ok := AllowedUploadExts[strings.ToLower(ext)]
+	return ok
+}
+
+// MatchUploadMime 校验实际 MIME 与扩展名匹配
+func MatchUploadMime(filename, detectedMime string) bool {
+	expected, ok := AllowedUploadExts[strings.ToLower(filepath.Ext(filename))]
+	return ok && detectedMime == expected
+}

internal/model/request/post.go

@@ -1,12 +1,13 @@
 package request
 
 import (
+	"server/internal/pkg/validator"
 	"time"
 )
 
 type CreatePostRequest struct {
 	Title       string    `json:"title" validate:"required,min=1"`
-	CoverID     int32     `json:"cover_id" validate:"required,min=1"`
+	CoverID     *int32    `json:"cover_id" validate:"omitempty"`
 	Slug        string    `json:"slug" validate:"required,min=0"`
 	Content     string    `json:"content" validate:"required,min=0"`
 	Summary     string    `json:"summary" validate:"required,min=0"`
@@ -18,15 +19,20 @@ type CreatePostRequest struct {
 }
 
 type UpdatePostRequest struct {
-	Title       *string    `json:"title" validate:"omitempty,min=1"`
-	CoverID     *int32     `json:"cover_id" validate:"omitempty,min=1"`
-	Slug        *string    `json:"slug" validate:"omitempty,min=1"`
-	Content     *string    `json:"content" validate:"required,min=0"`
-	Summary     *string    `json:"summary" validate:"omitempty,min=1"`
-	Status      *int16     `json:"status" validate:"omitempty,oneof=0 1 2"`
-	View        *int32     `json:"view" validate:"omitempty,min=1"`
-	Sort        *int32     `json:"sort" validate:"omitempty,min=0"`
-	PublishedAt *time.Time `json:"published_at" validate:"omitempty"`
-	CategoryID  *int32     `json:"category_id" validate:"required,min=1"`
-	Tags        []int32    `json:"tags" validate:"omitempty,dive,min=1"`
+	Title       *string             `json:"title" validate:"omitempty,min=1"`
+	CoverID     validator.NullInt32 `json:"cover_id" validate:"omitempty"`
+	Slug        *string             `json:"slug" validate:"omitempty,min=1"`
+	Content     *string             `json:"content" validate:"required,min=0"`
+	Summary     *string             `json:"summary" validate:"omitempty,min=1"`
+	Status      *int16              `json:"status" validate:"omitempty,oneof=0 1 2"`
+	View        *int32              `json:"view" validate:"omitempty,min=1"`
+	Sort        *int32              `json:"sort" validate:"omitempty,min=0"`
+	PublishedAt *time.Time          `json:"published_at" validate:"omitempty"`
+	CategoryID  *int32              `json:"category_id" validate:"required,min=1"`
+	Tags        []int32             `json:"tags" validate:"omitempty,dive,min=1"`
+}
+
+type SearchPublishedPostsParams struct {
+	CategoryCode string `json:"category_code" validate:"omitempty"`
+	TagCode      string `json:"tag_code" validate:"omitempty"`
 }