fix：字典支持 tree 结构

server/api/v1/system/sys_dictionary_detail.go

@@ -1,6 +1,8 @@
 package system
 
 import (
+	"strconv"
+
 	"github.com/flipped-aurora/gin-vue-admin/server/global"
 	"github.com/flipped-aurora/gin-vue-admin/server/model/common/response"
 	"github.com/flipped-aurora/gin-vue-admin/server/model/system"
@@ -146,3 +148,120 @@ func (s *DictionaryDetailApi) GetSysDictionaryDetailList(c *gin.Context) {
 		PageSize: pageInfo.PageSize,
 	}, "获取成功", c)
 }
+
+// GetDictionaryTreeList
+// @Tags      SysDictionaryDetail
+// @Summary   获取字典详情树形结构
+// @Security  ApiKeyAuth
+// @accept    application/json
+// @Produce   application/json
+// @Param     sysDictionaryID  query     int                                                true  "字典ID"
+// @Success   200              {object}  response.Response{data=[]system.SysDictionaryDetail,msg=string}  "获取字典详情树形结构"
+// @Router    /sysDictionaryDetail/getDictionaryTreeList [get]
+func (s *DictionaryDetailApi) GetDictionaryTreeList(c *gin.Context) {
+	sysDictionaryID := c.Query("sysDictionaryID")
+	if sysDictionaryID == "" {
+		response.FailWithMessage("字典ID不能为空", c)
+		return
+	}
+
+	var id uint
+	if idUint64, err := strconv.ParseUint(sysDictionaryID, 10, 32); err != nil {
+		response.FailWithMessage("字典ID格式错误", c)
+		return
+	} else {
+		id = uint(idUint64)
+	}
+
+	list, err := dictionaryDetailService.GetDictionaryTreeList(id)
+	if err != nil {
+		global.GVA_LOG.Error("获取失败!", zap.Error(err))
+		response.FailWithMessage("获取失败", c)
+		return
+	}
+	response.OkWithDetailed(gin.H{"list": list}, "获取成功", c)
+}
+
+// GetDictionaryTreeListByType
+// @Tags      SysDictionaryDetail
+// @Summary   根据字典类型获取字典详情树形结构
+// @Security  ApiKeyAuth
+// @accept    application/json
+// @Produce   application/json
+// @Param     type  query     string                                                true  "字典类型"
+// @Success   200   {object}  response.Response{data=[]system.SysDictionaryDetail,msg=string}  "获取字典详情树形结构"
+// @Router    /sysDictionaryDetail/getDictionaryTreeListByType [get]
+func (s *DictionaryDetailApi) GetDictionaryTreeListByType(c *gin.Context) {
+	dictType := c.Query("type")
+	if dictType == "" {
+		response.FailWithMessage("字典类型不能为空", c)
+		return
+	}
+
+	list, err := dictionaryDetailService.GetDictionaryTreeListByType(dictType)
+	if err != nil {
+		global.GVA_LOG.Error("获取失败!", zap.Error(err))
+		response.FailWithMessage("获取失败", c)
+		return
+	}
+	response.OkWithDetailed(gin.H{"list": list}, "获取成功", c)
+}
+
+// GetDictionaryDetailsByParent
+// @Tags      SysDictionaryDetail
+// @Summary   根据父级ID获取字典详情
+// @Security  ApiKeyAuth
+// @accept    application/json
+// @Produce   application/json
+// @Param     data  query     request.GetDictionaryDetailsByParentRequest                true  "查询参数"
+// @Success   200   {object}  response.Response{data=[]system.SysDictionaryDetail,msg=string}  "获取字典详情列表"
+// @Router    /sysDictionaryDetail/getDictionaryDetailsByParent [get]
+func (s *DictionaryDetailApi) GetDictionaryDetailsByParent(c *gin.Context) {
+	var req request.GetDictionaryDetailsByParentRequest
+	err := c.ShouldBindQuery(&req)
+	if err != nil {
+		response.FailWithMessage(err.Error(), c)
+		return
+	}
+
+	list, err := dictionaryDetailService.GetDictionaryDetailsByParent(req)
+	if err != nil {
+		global.GVA_LOG.Error("获取失败!", zap.Error(err))
+		response.FailWithMessage("获取失败", c)
+		return
+	}
+	response.OkWithDetailed(gin.H{"list": list}, "获取成功", c)
+}
+
+// GetDictionaryPath
+// @Tags      SysDictionaryDetail
+// @Summary   获取字典详情的完整路径
+// @Security  ApiKeyAuth
+// @accept    application/json
+// @Produce   application/json
+// @Param     id  query     uint                                                true  "字典详情ID"
+// @Success   200 {object}  response.Response{data=[]system.SysDictionaryDetail,msg=string}  "获取字典详情路径"
+// @Router    /sysDictionaryDetail/getDictionaryPath [get]
+func (s *DictionaryDetailApi) GetDictionaryPath(c *gin.Context) {
+	idStr := c.Query("id")
+	if idStr == "" {
+		response.FailWithMessage("字典详情ID不能为空", c)
+		return
+	}
+
+	var id uint
+	if idUint64, err := strconv.ParseUint(idStr, 10, 32); err != nil {
+		response.FailWithMessage("字典详情ID格式错误", c)
+		return
+	} else {
+		id = uint(idUint64)
+	}
+
+	path, err := dictionaryDetailService.GetDictionaryPath(id)
+	if err != nil {
+		global.GVA_LOG.Error("获取失败!", zap.Error(err))
+		response.FailWithMessage("获取失败", c)
+		return
+	}
+	response.OkWithDetailed(gin.H{"path": path}, "获取成功", c)
+}

server/middleware/casbin_rbac.go

@@ -1,13 +1,12 @@
 package middleware
 
 import (
-	"strconv"
-	"strings"
-
 	"github.com/flipped-aurora/gin-vue-admin/server/global"
 	"github.com/flipped-aurora/gin-vue-admin/server/model/common/response"
 	"github.com/flipped-aurora/gin-vue-admin/server/utils"
 	"github.com/gin-gonic/gin"
+	"strconv"
+	"strings"
 )
 
 // CasbinHandler 拦截器

server/model/system/request/sys_dictionary_detail.go

@@ -8,4 +8,36 @@ import (
 type SysDictionaryDetailSearch struct {
 	system.SysDictionaryDetail
 	request.PageInfo
+	ParentID *uint `json:"parentID" form:"parentID"` // 父级字典详情ID，用于查询指定父级下的子项
+	Level    *int  `json:"level" form:"level"`       // 层级深度，用于查询指定层级的数据
+}
+
+// CreateSysDictionaryDetailRequest 创建字典详情请求
+type CreateSysDictionaryDetailRequest struct {
+	Label           string `json:"label" form:"label" binding:"required"`                     // 展示值
+	Value           string `json:"value" form:"value" binding:"required"`                     // 字典值
+	Extend          string `json:"extend" form:"extend"`                                      // 扩展值
+	Status          *bool  `json:"status" form:"status"`                                      // 启用状态
+	Sort            int    `json:"sort" form:"sort"`                                          // 排序标记
+	SysDictionaryID int    `json:"sysDictionaryID" form:"sysDictionaryID" binding:"required"` // 关联标记
+	ParentID        *uint  `json:"parentID" form:"parentID"`                                  // 父级字典详情ID
+}
+
+// UpdateSysDictionaryDetailRequest 更新字典详情请求
+type UpdateSysDictionaryDetailRequest struct {
+	ID              uint   `json:"ID" form:"ID" binding:"required"`                           // 主键ID
+	Label           string `json:"label" form:"label" binding:"required"`                     // 展示值
+	Value           string `json:"value" form:"value" binding:"required"`                     // 字典值
+	Extend          string `json:"extend" form:"extend"`                                      // 扩展值
+	Status          *bool  `json:"status" form:"status"`                                      // 启用状态
+	Sort            int    `json:"sort" form:"sort"`                                          // 排序标记
+	SysDictionaryID int    `json:"sysDictionaryID" form:"sysDictionaryID" binding:"required"` // 关联标记
+	ParentID        *uint  `json:"parentID" form:"parentID"`                                  // 父级字典详情ID
+}
+
+// GetDictionaryDetailsByParentRequest 根据父级ID获取字典详情请求
+type GetDictionaryDetailsByParentRequest struct {
+	SysDictionaryID int   `json:"sysDictionaryID" form:"sysDictionaryID" binding:"required"` // 字典ID
+	ParentID        *uint `json:"parentID" form:"parentID"`                                  // 父级字典详情ID，为空时获取顶级
+	IncludeChildren bool  `json:"includeChildren" form:"includeChildren"`                    // 是否包含子级数据
 }

server/model/system/sys_dictionary.go

@@ -8,10 +8,12 @@ import (
 // 如果含有time.Time 请自行import time包
 type SysDictionary struct {
 	global.GVA_MODEL
-	Name                 string                `json:"name" form:"name" gorm:"column:name;comment:字典名（中）"`   // 字典名（中）
-	Type                 string                `json:"type" form:"type" gorm:"column:type;comment:字典名（英）"`   // 字典名（英）
-	Status               *bool                 `json:"status" form:"status" gorm:"column:status;comment:状态"` // 状态
-	Desc                 string                `json:"desc" form:"desc" gorm:"column:desc;comment:描述"`       // 描述
+	Name                 string                `json:"name" form:"name" gorm:"column:name;comment:字典名（中）"`              // 字典名（中）
+	Type                 string                `json:"type" form:"type" gorm:"column:type;comment:字典名（英）"`              // 字典名（英）
+	Status               *bool                 `json:"status" form:"status" gorm:"column:status;comment:状态"`            // 状态
+	Desc                 string                `json:"desc" form:"desc" gorm:"column:desc;comment:描述"`                  // 描述
+	ParentID             *uint                 `json:"parentID" form:"parentID" gorm:"column:parent_id;comment:父级字典ID"` // 父级字典ID
+	Children             []SysDictionary       `json:"children" gorm:"foreignKey:ParentID"`                             // 子字典
 	SysDictionaryDetails []SysDictionaryDetail `json:"sysDictionaryDetails" form:"sysDictionaryDetails"`
 }
 

server/model/system/sys_dictionary_detail.go

@@ -8,12 +8,16 @@ import (
 // 如果含有time.Time 请自行import time包
 type SysDictionaryDetail struct {
 	global.GVA_MODEL
-	Label           string `json:"label" form:"label" gorm:"column:label;comment:展示值"`                                  // 展示值
-	Value           string `json:"value" form:"value" gorm:"column:value;comment:字典值"`                                  // 字典值
-	Extend          string `json:"extend" form:"extend" gorm:"column:extend;comment:扩展值"`                               // 扩展值
-	Status          *bool  `json:"status" form:"status" gorm:"column:status;comment:启用状态"`                              // 启用状态
-	Sort            int    `json:"sort" form:"sort" gorm:"column:sort;comment:排序标记"`                                    // 排序标记
-	SysDictionaryID int    `json:"sysDictionaryID" form:"sysDictionaryID" gorm:"column:sys_dictionary_id;comment:关联标记"` // 关联标记
+	Label           string                `json:"label" form:"label" gorm:"column:label;comment:展示值"`                                  // 展示值
+	Value           string                `json:"value" form:"value" gorm:"column:value;comment:字典值"`                                  // 字典值
+	Extend          string                `json:"extend" form:"extend" gorm:"column:extend;comment:扩展值"`                               // 扩展值
+	Status          *bool                 `json:"status" form:"status" gorm:"column:status;comment:启用状态"`                              // 启用状态
+	Sort            int                   `json:"sort" form:"sort" gorm:"column:sort;comment:排序标记"`                                    // 排序标记
+	SysDictionaryID int                   `json:"sysDictionaryID" form:"sysDictionaryID" gorm:"column:sys_dictionary_id;comment:关联标记"` // 关联标记
+	ParentID        *uint                 `json:"parentID" form:"parentID" gorm:"column:parent_id;comment:父级字典详情ID"`                   // 父级字典详情ID
+	Children        []SysDictionaryDetail `json:"children" gorm:"foreignKey:ParentID"`                                                 // 子字典详情
+	Level           int                   `json:"level" form:"level" gorm:"column:level;comment:层级深度"`                                 // 层级深度，从0开始
+	Path            string                `json:"path" form:"path" gorm:"column:path;comment:层级路径"`                                    // 层级路径，如 "1,2,3"
 }
 
 func (SysDictionaryDetail) TableName() string {

server/router/system/sys_dictionary_detail.go

@@ -16,7 +16,11 @@ func (s *DictionaryDetailRouter) InitSysDictionaryDetailRouter(Router *gin.Route
 		dictionaryDetailRouter.PUT("updateSysDictionaryDetail", dictionaryDetailApi.UpdateSysDictionaryDetail)    // 更新SysDictionaryDetail
 	}
 	{
-		dictionaryDetailRouterWithoutRecord.GET("findSysDictionaryDetail", dictionaryDetailApi.FindSysDictionaryDetail)       // 根据ID获取SysDictionaryDetail
-		dictionaryDetailRouterWithoutRecord.GET("getSysDictionaryDetailList", dictionaryDetailApi.GetSysDictionaryDetailList) // 获取SysDictionaryDetail列表
+		dictionaryDetailRouterWithoutRecord.GET("findSysDictionaryDetail", dictionaryDetailApi.FindSysDictionaryDetail)           // 根据ID获取SysDictionaryDetail
+		dictionaryDetailRouterWithoutRecord.GET("getSysDictionaryDetailList", dictionaryDetailApi.GetSysDictionaryDetailList)     // 获取SysDictionaryDetail列表
+		dictionaryDetailRouterWithoutRecord.GET("getDictionaryTreeList", dictionaryDetailApi.GetDictionaryTreeList)               // 获取字典详情树形结构
+		dictionaryDetailRouterWithoutRecord.GET("getDictionaryTreeListByType", dictionaryDetailApi.GetDictionaryTreeListByType)   // 根据字典类型获取字典详情树形结构
+		dictionaryDetailRouterWithoutRecord.GET("getDictionaryDetailsByParent", dictionaryDetailApi.GetDictionaryDetailsByParent) // 根据父级ID获取字典详情
+		dictionaryDetailRouterWithoutRecord.GET("getDictionaryPath", dictionaryDetailApi.GetDictionaryPath)                       // 获取字典详情的完整路径
 	}
 }

server/service/system/sys_dictionary.go

@@ -2,6 +2,7 @@ package system
 
 import (
 	"errors"
+
 	"github.com/flipped-aurora/gin-vue-admin/server/model/system/request"
 	"github.com/gin-gonic/gin"
 
@@ -62,10 +63,11 @@ func (dictionaryService *DictionaryService) DeleteSysDictionary(sysDictionary sy
 func (dictionaryService *DictionaryService) UpdateSysDictionary(sysDictionary *system.SysDictionary) (err error) {
 	var dict system.SysDictionary
 	sysDictionaryMap := map[string]interface{}{
-		"Name":   sysDictionary.Name,
-		"Type":   sysDictionary.Type,
-		"Status": sysDictionary.Status,
-		"Desc":   sysDictionary.Desc,
+		"Name":     sysDictionary.Name,
+		"Type":     sysDictionary.Type,
+		"Status":   sysDictionary.Status,
+		"Desc":     sysDictionary.Desc,
+		"ParentID": sysDictionary.ParentID,
 	}
 	err = global.GVA_DB.Where("id = ?", sysDictionary.ID).First(&dict).Error
 	if err != nil {
@@ -77,6 +79,14 @@ func (dictionaryService *DictionaryService) UpdateSysDictionary(sysDictionary *s
 			return errors.New("存在相同的type，不允许创建")
 		}
 	}
+
+	// 检查是否会形成循环引用
+	if sysDictionary.ParentID != nil && *sysDictionary.ParentID != 0 {
+		if err := dictionaryService.checkCircularReference(sysDictionary.ID, *sysDictionary.ParentID); err != nil {
+			return err
+		}
+	}
+
 	err = global.GVA_DB.Model(&dict).Updates(sysDictionaryMap).Error
 	return err
 }
@@ -113,6 +123,32 @@ func (dictionaryService *DictionaryService) GetSysDictionaryInfoList(c *gin.Cont
 	if req.Name != "" {
 		query = query.Where("name LIKE ? OR type LIKE ?", "%"+req.Name+"%", "%"+req.Name+"%")
 	}
+	// 预加载子字典
+	query = query.Preload("Children")
 	err = query.Find(&sysDictionarys).Error
 	return sysDictionarys, err
 }
+
+// checkCircularReference 检查是否会形成循环引用
+func (dictionaryService *DictionaryService) checkCircularReference(currentID uint, parentID uint) error {
+	if currentID == parentID {
+		return errors.New("不能将字典设置为自己的父级")
+	}
+
+	// 递归检查父级链条
+	var parent system.SysDictionary
+	err := global.GVA_DB.Where("id = ?", parentID).First(&parent).Error
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return nil // 父级不存在，允许设置
+		}
+		return err
+	}
+
+	// 如果父级还有父级，继续检查
+	if parent.ParentID != nil && *parent.ParentID != 0 {
+		return dictionaryService.checkCircularReference(currentID, *parent.ParentID)
+	}
+
+	return nil
+}