feat: get-metadata

backend/controller/api.go

@@ -18,6 +18,7 @@ type APIController struct {
 func NewApiController(
 	as service.AccountService,
 	ps service.PostService,
+	ms service.MiscService,
 ) *APIController {
 	r := gin.Default()
 
@@ -45,7 +46,7 @@ func NewApiController(
 			return
 		}
 		// 没有文件都返回/
-		if util.IsFileExist("./frontend/dist"+c.Request.URL.Path) == false {
+		if !util.IsFileExist("./frontend/dist" + c.Request.URL.Path) {
 			http.ServeFile(c.Writer, c.Request, "./frontend/dist/index.html")
 		} else {
 			http.ServeFile(c.Writer, c.Request, "./frontend/dist"+c.Request.URL.Path)
@@ -57,6 +58,7 @@ func NewApiController(
 	// bind routes
 	NewAccountRouter(rg, as)
 	NewPostRouter(rg, ps)
+	NewMiscRouter(rg, ms)
 
 	return &APIController{
 		R: r,

backend/controller/miscapi.go

@@ -0,0 +1,45 @@
+package controller
+
+import (
+	"github.com/RockChinQ/Campux/backend/service"
+	"github.com/gin-gonic/gin"
+)
+
+type MiscRouter struct {
+	APIRouter
+	MiscService service.MiscService
+}
+
+func NewMiscRouter(rg *gin.RouterGroup, ms service.MiscService) *MiscRouter {
+	mr := &MiscRouter{
+		MiscService: ms,
+	}
+
+	group := rg.Group("/misc")
+
+	// bind routes
+	group.GET("/get-metadata", mr.GetMetadata)
+
+	return mr
+}
+
+// 获取元数据
+func (mr *MiscRouter) GetMetadata(c *gin.Context) {
+	key := c.Query("key")
+
+	if key == "" {
+		mr.Fail(c, 1, "key is required")
+		return
+	}
+
+	value, err := mr.MiscService.GetMetadata(key)
+
+	if err != nil {
+		mr.Fail(c, 1, err.Error())
+		return
+	}
+
+	mr.Success(c, gin.H{
+		"value": value,
+	})
+}

backend/core/app.go

@@ -19,8 +19,10 @@ func NewApplication() *Application {
 	fs := oss.NewMinioClient()
 	ps := service.NewPostService(*db, *fs)
 
+	ms := service.NewMiscService(*db)
+
 	return &Application{
-		API: controller.NewApiController(*as, *ps),
+		API: controller.NewApiController(*as, *ps, *ms),
 	}
 }
 

backend/database/mongo.go

@@ -13,6 +13,7 @@ const (
 	ACCOUNT_COLLECTION  = "account"
 	POST_COLLECTION     = "post"
 	POST_LOG_COLLECTION = "post_log"
+	METADATA_COLLECTION = "metadata"
 )
 
 type MongoDBManager struct {
@@ -172,3 +173,17 @@ func (m *MongoDBManager) UpdatePostStatus(id int, status PostStatus) error {
 	)
 	return err
 }
+
+func (m *MongoDBManager) GetMetadata(key string) (string, error) {
+	var meta struct {
+		Value string `bson:"value"`
+	}
+	err := m.Client.Database(viper.GetString("database.mongo.db")).Collection(METADATA_COLLECTION).FindOne(
+		context.TODO(),
+		bson.M{"key": key},
+	).Decode(&meta)
+	if err != nil {
+		return "", err
+	}
+	return meta.Value, nil
+}

backend/service/misc.go

@@ -0,0 +1,17 @@
+package service
+
+import "github.com/RockChinQ/Campux/backend/database"
+
+type MiscService struct {
+	DB database.MongoDBManager
+}
+
+func NewMiscService(db database.MongoDBManager) *MiscService {
+	return &MiscService{
+		DB: db,
+	}
+}
+
+func (ms *MiscService) GetMetadata(key string) (string, error) {
+	return ms.DB.GetMetadata(key)
+}