feat(knowledge): 知识库 API、权限与迁移

server-go/internal/database/db.go

@@ -27,15 +27,40 @@ func Init(cfg *config.Config) error {
 		&model.Threshold{}, &model.Alarm{}, &model.Camera{}, &model.VideoClip{},
 		&model.AuditLog{}, &model.Telemetry{},
 		&model.Permission{}, &model.RolePermission{},
+		&model.Disease{}, &model.KnowledgeArticle{},
 	); err != nil {
 		slog.Warn("自动迁移有警告（可忽略）", "err", err)
 	}
 	// 初始化权限种子数据
 	seedPermissions(db)
+	// 初始化知识库种子数据
+	seedKnowledge(db)
 	slog.Info("数据库连接成功，自动迁移完成")
 	return nil
 }
 
+// seedKnowledge 初始化知识库种子数据（幂等：按名称/类型+标题判重）
+func seedKnowledge(db *gorm.DB) {
+	for _, d := range model.SeedDiseases {
+		var cnt int64
+		db.Model(&model.Disease{}).Where("name = ?", d.Name).Count(&cnt)
+		if cnt == 0 {
+			if err := db.Create(&d).Error; err != nil {
+				slog.Warn("写入病种种子失败", "name", d.Name, "err", err)
+			}
+		}
+	}
+	for _, a := range model.SeedKnowledgeArticles {
+		var cnt int64
+		db.Model(&model.KnowledgeArticle{}).Where("kind = ? AND title = ?", a.Kind, a.Title).Count(&cnt)
+		if cnt == 0 {
+			if err := db.Create(&a).Error; err != nil {
+				slog.Warn("写入知识文章种子失败", "title", a.Title, "err", err)
+			}
+		}
+	}
+}
+
 // seedPermissions 初始化权限和角色-权限映射种子数据（幂等）
 func seedPermissions(db *gorm.DB) {
 	// 1. 写入权限定义（已存在则跳过）

server-go/internal/handler/knowledge.go

@@ -0,0 +1,202 @@
+package handler
+
+import (
+	"net/http"
+
+	"silk-server-go/internal/middleware"
+	"silk-server-go/internal/model"
+
+	"github.com/gin-gonic/gin"
+	"gorm.io/gorm"
+)
+
+// RegisterKnowledgeRoutes 注册知识库路由
+func RegisterKnowledgeRoutes(rg *gin.RouterGroup, db *gorm.DB) {
+	read := middleware.RequirePermission(db, "knowledge:read")
+	write := middleware.RequirePermission(db, "knowledge:write")
+
+	rg.GET("/knowledge/diseases", read, listDiseases(db))
+	rg.GET("/knowledge/diseases/:id", read, getDisease(db))
+	rg.POST("/knowledge/diseases", write, createDisease(db))
+	rg.PATCH("/knowledge/diseases/:id", write, updateDisease(db))
+	rg.DELETE("/knowledge/diseases/:id", write, deleteDisease(db))
+
+	rg.GET("/knowledge/articles", read, listArticles(db))
+	rg.GET("/knowledge/articles/:id", read, getArticle(db))
+	rg.POST("/knowledge/articles", write, createArticle(db))
+	rg.PATCH("/knowledge/articles/:id", write, updateArticle(db))
+	rg.DELETE("/knowledge/articles/:id", write, deleteArticle(db))
+}
+
+// listDiseases 蚕病百科列表（支持 category/keyword/enabled 过滤）
+func listDiseases(db *gorm.DB) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		q := db.Model(&model.Disease{})
+		if cat := c.Query("category"); cat != "" {
+			q = q.Where("category = ?", cat)
+		}
+		if kw := c.Query("keyword"); kw != "" {
+			q = q.Where("name ILIKE ?", "%"+kw+"%")
+		}
+		if enabled := c.Query("enabled"); enabled != "" {
+			q = q.Where("enabled = ?", enabled == "true")
+		}
+		var list []model.Disease
+		q.Order("sort_order ASC, name ASC").Find(&list)
+		c.JSON(http.StatusOK, list)
+	}
+}
+
+// getDisease 蚕病百科详情
+func getDisease(db *gorm.DB) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var d model.Disease
+		if db.Where("id = ?", c.Param("id")).First(&d).Error != nil {
+			c.JSON(http.StatusNotFound, gin.H{"error": "disease not found"})
+			return
+		}
+		c.JSON(http.StatusOK, d)
+	}
+}
+
+// createDisease 新建病种
+func createDisease(db *gorm.DB) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var d model.Disease
+		if err := c.ShouldBindJSON(&d); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		d.ID = ""
+		if d.Name == "" {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "病种名称不能为空"})
+			return
+		}
+		if err := db.Create(&d).Error; err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "创建失败"})
+			return
+		}
+		c.JSON(http.StatusCreated, d)
+	}
+}
+
+// updateDisease 更新病种
+func updateDisease(db *gorm.DB) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		id := c.Param("id")
+		var d model.Disease
+		if db.Where("id = ?", id).First(&d).Error != nil {
+			c.JSON(http.StatusNotFound, gin.H{"error": "disease not found"})
+			return
+		}
+		updates, err := bindUpdates(c)
+		if err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		if len(updates) > 0 {
+			db.Model(&model.Disease{}).Where("id = ?", id).Updates(updates)
+		}
+		db.Where("id = ?", id).First(&d)
+		c.JSON(http.StatusOK, d)
+	}
+}
+
+// deleteDisease 删除病种
+func deleteDisease(db *gorm.DB) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		id := c.Param("id")
+		var d model.Disease
+		if db.Where("id = ?", id).First(&d).Error != nil {
+			c.JSON(http.StatusNotFound, gin.H{"error": "disease not found"})
+			return
+		}
+		db.Where("id = ?", id).Delete(&model.Disease{})
+		c.JSON(http.StatusOK, gin.H{"id": id})
+	}
+}
+
+// listArticles 知识文章列表（支持 kind/enabled 过滤）
+func listArticles(db *gorm.DB) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		q := db.Model(&model.KnowledgeArticle{})
+		if kind := c.Query("kind"); kind != "" {
+			q = q.Where("kind = ?", kind)
+		}
+		if enabled := c.Query("enabled"); enabled != "" {
+			q = q.Where("enabled = ?", enabled == "true")
+		}
+		var list []model.KnowledgeArticle
+		q.Order("sort_order ASC, created_at DESC").Find(&list)
+		c.JSON(http.StatusOK, list)
+	}
+}
+
+// getArticle 知识文章详情
+func getArticle(db *gorm.DB) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var a model.KnowledgeArticle
+		if db.Where("id = ?", c.Param("id")).First(&a).Error != nil {
+			c.JSON(http.StatusNotFound, gin.H{"error": "article not found"})
+			return
+		}
+		c.JSON(http.StatusOK, a)
+	}
+}
+
+// createArticle 新建知识文章
+func createArticle(db *gorm.DB) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var a model.KnowledgeArticle
+		if err := c.ShouldBindJSON(&a); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		a.ID = ""
+		if a.Kind == "" || a.Title == "" {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "文章类型和标题不能为空"})
+			return
+		}
+		if err := db.Create(&a).Error; err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "创建失败"})
+			return
+		}
+		c.JSON(http.StatusCreated, a)
+	}
+}
+
+// updateArticle 更新知识文章
+func updateArticle(db *gorm.DB) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		id := c.Param("id")
+		var a model.KnowledgeArticle
+		if db.Where("id = ?", id).First(&a).Error != nil {
+			c.JSON(http.StatusNotFound, gin.H{"error": "article not found"})
+			return
+		}
+		updates, err := bindUpdates(c)
+		if err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		if len(updates) > 0 {
+			db.Model(&model.KnowledgeArticle{}).Where("id = ?", id).Updates(updates)
+		}
+		db.Where("id = ?", id).First(&a)
+		c.JSON(http.StatusOK, a)
+	}
+}
+
+// deleteArticle 删除知识文章
+func deleteArticle(db *gorm.DB) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		id := c.Param("id")
+		var a model.KnowledgeArticle
+		if db.Where("id = ?", id).First(&a).Error != nil {
+			c.JSON(http.StatusNotFound, gin.H{"error": "article not found"})
+			return
+		}
+		db.Where("id = ?", id).Delete(&model.KnowledgeArticle{})
+		c.JSON(http.StatusOK, gin.H{"id": id})
+	}
+}

server-go/internal/model/permission_seed.go

@@ -22,6 +22,8 @@ var AllPermissions = []PermissionDef{
 	{"video:record", "视频录制", "启动和停止视频录制"},
 	{"energy:view", "能耗查看", "查看能耗数据"},
 	{"log:read", "日志查看", "查看控制日志"},
+	{"knowledge:read", "知识库查看", "查看蚕病百科和知识文章"},
+	{"knowledge:write", "知识库管理", "新增、编辑、删除知识库内容"},
 	{"user:manage", "用户管理", "管理用户、角色和权限"},
 	{"audit:read", "审计查看", "查看审计日志"},
 }
@@ -32,19 +34,23 @@ var RolePermissionMap = map[string][]string{
 		"dashboard:view", "room:read", "room:write", "device:read", "device:control",
 		"threshold:read", "threshold:write", "alarm:read", "alarm:ack",
 		"video:read", "video:record", "energy:view", "log:read",
+		"knowledge:read", "knowledge:write",
 		"user:manage", "audit:read",
 	},
 	RoleOperator: {
 		"dashboard:view", "room:read", "room:write", "device:read", "device:control",
 		"threshold:read", "threshold:write", "alarm:read", "alarm:ack",
 		"video:read", "video:record", "energy:view", "log:read",
+		"knowledge:read", "knowledge:write",
 	},
 	RoleViewer: {
 		"dashboard:view", "room:read", "device:read",
 		"threshold:read", "alarm:read", "video:read", "energy:view",
+		"knowledge:read",
 	},
 	RoleFarmer: {
 		"dashboard:view", "room:read", "device:read", "device:control",
 		"alarm:read", "alarm:ack", "video:read", "energy:view",
+		"knowledge:read",
 	},
 }