!776 【CRM：优化产品以及产品分类】

Merge pull request !776 from ZanGe丶/feature/crm

!776 【CRM：优化产品以及产品分类】
Merge pull request !776 from ZanGe丶/feature/crm
芋道源码 · Gitee
2 parents 72969e92 d2e965fb
Showing 30 changed files with 442 additions and 319 deletions
yudao-module-crm/yudao-module-crm-api/src/main/java/cn/iocoder/yudao/module/crm/enums/ErrorCodeConstants.java
yudao-module-crm/yudao-module-crm-api/src/main/java/cn/iocoder/yudao/module/crm/enums/product/CrmProductStatusEnum.java
yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/convert/product/CrmProductCategoryConvert.java
yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/convert/product/CrmProductConvert.java
yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/convert/product/ProductConvert.java
yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/convert/productcategory/ProductCategoryConvert.java
yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/dal/mysql/product/CrmProductCategoryMapper.java
yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/dal/mysql/product/CrmProductMapper.java
yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/dal/mysql/product/ProductMapper.java
yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/dal/mysql/productcategory/ProductCategoryMapper.java
@@ -50,11 +50,18 @@ public interface ErrorCodeConstants {
     ErrorCode CRM_PERMISSION_DELETE_SELF_PERMISSION_FAIL_EXIST_OWNER = new ErrorCode(1_020_007_007, "删除数据权限失败，原因：不能删除负责人");
  
     // ========== 产品 1_020_008_000 ==========
-    ErrorCode PRODUCT_NOT_EXISTS = new ErrorCode(1_020_008_000, "产品不存在");
-    ErrorCode PRODUCT_NO_EXISTS = new ErrorCode(1_020_008_001, "产品编号已存在");
+    ErrorCode CRM_PRODUCT_NOT_EXISTS = new ErrorCode(1_020_008_000, "产品不存在");
+    ErrorCode CRM_PRODUCT_NO_EXISTS = new ErrorCode(1_020_008_001, "产品编号已存在");
  
     // ========== 产品分类 1_020_009_000 ==========
-    ErrorCode PRODUCT_CATEGORY_NOT_EXISTS = new ErrorCode(1_020_009_000, "产品分类不存在");
+    ErrorCode CRM_PRODUCT_CATEGORY_NOT_EXISTS = new ErrorCode(1_020_009_000, "产品分类不存在");
+    ErrorCode CRM_PRODUCT_CATEGORY_EXISTS = new ErrorCode(1_020_009_001, "产品分类已存在");
+
+    ErrorCode CRM_PRODUCT_CATEGORY_USED = new ErrorCode(1_020_009_002, "产品分类已关联产品");
+
+    ErrorCode CRM_CATEGORY_PARENT_NOT_EXISTS = new ErrorCode(1_020_009_003, "父分类不存在");
+    ErrorCode CRM_CATEGORY_PARENT_NOT_FIRST_LEVEL = new ErrorCode(1_020_009_004, "父分类不能是二级分类");
+    ErrorCode CRM_CATEGORY_EXISTS_CHILDREN = new ErrorCode(1_020_009_005, "存在子分类，无法删除");
  
     // ========== 商机状态类型 1_020_010_000 ==========
     ErrorCode BUSINESS_STATUS_TYPE_NOT_EXISTS = new ErrorCode(1_020_010_000, "商机状态类型不存在");
+package cn.iocoder.yudao.module.crm.enums.product;
+
+import cn.iocoder.yudao.framework.common.core.IntArrayValuable;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+import java.util.Arrays;
+
+/**
+ * @author ZanGe丶
+ * @create 2023-11-30 21:53
+ */
+@Getter
+@AllArgsConstructor
+public enum CrmProductStatusEnum implements IntArrayValuable {
+    DISABLE(0, "下架"),
+    ENABLE(1, "上架");
+
+    public static final int[] ARRAYS = Arrays.stream(values()).mapToInt(CrmProductStatusEnum::getStatus).toArray();
+
+    /**
+     * 状态
+     */
+    private final Integer status;
+    /**
+     * 状态名
+     */
+    private final String name;
+
+    @Override
+    public int[] array() {
+        return ARRAYS;
+    }
+
+    /**
+     * 判断是否处于【上架】状态
+     *
+     * @param status 状态
+     * @return 是否处于【上架】状态
+     */
+    public static boolean isEnable(Integer status) {
+        return ENABLE.getStatus().equals(status);
+    }
+}
-package cn.iocoder.yudao.module.crm.controller.admin.productcategory;
+package cn.iocoder.yudao.module.crm.controller.admin.product;
  
-import org.springframework.web.bind.annotation.*;
-import javax.annotation.Resource;
-import org.springframework.validation.annotation.Validated;
-import org.springframework.security.access.prepost.PreAuthorize;
-import io.swagger.v3.oas.annotations.tags.Tag;
-import io.swagger.v3.oas.annotations.Parameter;
+import cn.iocoder.yudao.framework.common.pojo.CommonResult;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.productcategory.CrmProductCategoryCreateReqVO;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.productcategory.CrmProductCategoryListReqVO;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.productcategory.CrmProductCategoryRespVO;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.productcategory.CrmProductCategoryUpdateReqVO;
+import cn.iocoder.yudao.module.crm.convert.product.CrmProductCategoryConvert;
+import cn.iocoder.yudao.module.crm.dal.dataobject.product.CrmProductCategoryDO;
+import cn.iocoder.yudao.module.crm.service.product.CrmProductCategoryService;
 import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.Parameter;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import org.springframework.security.access.prepost.PreAuthorize;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.*;
  
-import javax.validation.constraints.*;
-import javax.validation.*;
-import javax.servlet.http.*;
-import java.util.*;
-import java.io.IOException;
+import javax.annotation.Resource;
+import javax.validation.Valid;
+import java.util.List;
  
-import cn.iocoder.yudao.framework.common.pojo.PageResult;
-import cn.iocoder.yudao.framework.common.pojo.CommonResult;
 import static cn.iocoder.yudao.framework.common.pojo.CommonResult.success;
  
-import cn.iocoder.yudao.framework.excel.core.util.ExcelUtils;
-
-import cn.iocoder.yudao.framework.operatelog.core.annotations.OperateLog;
-import static cn.iocoder.yudao.framework.operatelog.core.enums.OperateTypeEnum.*;
-
-import cn.iocoder.yudao.module.crm.controller.admin.productcategory.vo.*;
-import cn.iocoder.yudao.module.crm.dal.dataobject.productcategory.ProductCategoryDO;
-import cn.iocoder.yudao.module.crm.convert.productcategory.ProductCategoryConvert;
-import cn.iocoder.yudao.module.crm.service.productcategory.ProductCategoryService;
-
 @Tag(name = "管理后台 - 产品分类")
 @RestController
 @RequestMapping("/crm/product-category")
 @Validated
-public class ProductCategoryController {
+public class CrmProductCategoryController {
  
     @Resource
-    private ProductCategoryService productCategoryService;
+    private CrmProductCategoryService productCategoryService;
  
     @PostMapping("/create")
     @Operation(summary = "创建产品分类")
     @PreAuthorize("@ss.hasPermission('crm:product-category:create')")
-    public CommonResult<Long> createProductCategory(@Valid @RequestBody ProductCategoryCreateReqVO createReqVO) {
+    public CommonResult<Long> createProductCategory(@Valid @RequestBody CrmProductCategoryCreateReqVO createReqVO) {
         return success(productCategoryService.createProductCategory(createReqVO));
     }
  
     @PutMapping("/update")
     @Operation(summary = "更新产品分类")
     @PreAuthorize("@ss.hasPermission('crm:product-category:update')")
-    public CommonResult<Boolean> updateProductCategory(@Valid @RequestBody ProductCategoryUpdateReqVO updateReqVO) {
+    public CommonResult<Boolean> updateProductCategory(@Valid @RequestBody CrmProductCategoryUpdateReqVO updateReqVO) {
         productCategoryService.updateProductCategory(updateReqVO);
         return success(true);
     }
@@ -65,17 +58,17 @@ public class ProductCategoryController {
     @Operation(summary = "获得产品分类")
     @Parameter(name = "id", description = "编号", required = true, example = "1024")
     @PreAuthorize("@ss.hasPermission('crm:product-category:query')")
-    public CommonResult<ProductCategoryRespVO> getProductCategory(@RequestParam("id") Long id) {
-        ProductCategoryDO productCategory = productCategoryService.getProductCategory(id);
-        return success(ProductCategoryConvert.INSTANCE.convert(productCategory));
+    public CommonResult<CrmProductCategoryRespVO> getProductCategory(@RequestParam("id") Long id) {
+        CrmProductCategoryDO productCategory = productCategoryService.getProductCategory(id);
+        return success(CrmProductCategoryConvert.INSTANCE.convert(productCategory));
     }
  
     @GetMapping("/list")
     @Operation(summary = "获得产品分类列表")
     @PreAuthorize("@ss.hasPermission('crm:product-category:query')")
-    public CommonResult<List<ProductCategoryRespVO>> getProductCategoryList(@Valid ProductCategoryListReqVO treeListReqVO) {
-        List<ProductCategoryDO> list = productCategoryService.getProductCategoryList(treeListReqVO);
-        return success(ProductCategoryConvert.INSTANCE.convertList(list));
+    public CommonResult<List<CrmProductCategoryRespVO>> getProductCategoryList(@Valid CrmProductCategoryListReqVO treeListReqVO) {
+        List<CrmProductCategoryDO> list = productCategoryService.getProductCategoryList(treeListReqVO);
+        return success(CrmProductCategoryConvert.INSTANCE.convertList(list));
     }
  
 }
@@ -4,10 +4,10 @@ import cn.iocoder.yudao.framework.common.pojo.CommonResult;
 import cn.iocoder.yudao.framework.common.pojo.PageResult;
 import cn.iocoder.yudao.framework.excel.core.util.ExcelUtils;
 import cn.iocoder.yudao.framework.operatelog.core.annotations.OperateLog;
-import cn.iocoder.yudao.module.crm.controller.admin.product.vo.*;
-import cn.iocoder.yudao.module.crm.convert.product.ProductConvert;
-import cn.iocoder.yudao.module.crm.dal.dataobject.product.ProductDO;
-import cn.iocoder.yudao.module.crm.service.product.ProductService;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.product.*;
+import cn.iocoder.yudao.module.crm.convert.product.CrmProductConvert;
+import cn.iocoder.yudao.module.crm.dal.dataobject.product.CrmProductDO;
+import cn.iocoder.yudao.module.crm.service.product.CrmProductService;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.tags.Tag;
@@ -28,22 +28,22 @@ import static cn.iocoder.yudao.framework.operatelog.core.enums.OperateTypeEnum.E
 @RestController
 @RequestMapping("/crm/product")
 @Validated
-public class ProductController {
+public class CrmProductController {
  
     @Resource
-    private ProductService productService;
+    private CrmProductService productService;
  
     @PostMapping("/create")
     @Operation(summary = "创建产品")
     @PreAuthorize("@ss.hasPermission('crm:product:create')")
-    public CommonResult<Long> createProduct(@Valid @RequestBody ProductCreateReqVO createReqVO) {
+    public CommonResult<Long> createProduct(@Valid @RequestBody CrmProductCreateReqVO createReqVO) {
         return success(productService.createProduct(createReqVO));
     }
  
     @PutMapping("/update")
     @Operation(summary = "更新产品")
     @PreAuthorize("@ss.hasPermission('crm:product:update')")
-    public CommonResult<Boolean> updateProduct(@Valid @RequestBody ProductUpdateReqVO updateReqVO) {
+    public CommonResult<Boolean> updateProduct(@Valid @RequestBody CrmProductUpdateReqVO updateReqVO) {
         productService.updateProduct(updateReqVO);
         return success(true);
     }
@@ -61,29 +61,29 @@ public class ProductController {
     @Operation(summary = "获得产品")
     @Parameter(name = "id", description = "编号", required = true, example = "1024")
     @PreAuthorize("@ss.hasPermission('crm:product:query')")
-    public CommonResult<ProductRespVO> getProduct(@RequestParam("id") Long id) {
-        ProductDO product = productService.getProduct(id);
-        return success(ProductConvert.INSTANCE.convert(product));
+    public CommonResult<CrmProductRespVO> getProduct(@RequestParam("id") Long id) {
+        CrmProductDO product = productService.getProduct(id);
+        return success(CrmProductConvert.INSTANCE.convert(product));
     }
  
     @GetMapping("/page")
     @Operation(summary = "获得产品分页")
     @PreAuthorize("@ss.hasPermission('crm:product:query')")
-    public CommonResult<PageResult<ProductRespVO>> getProductPage(@Valid ProductPageReqVO pageVO) {
-        PageResult<ProductDO> pageResult = productService.getProductPage(pageVO);
-        return success(ProductConvert.INSTANCE.convertPage(pageResult));
+    public CommonResult<PageResult<CrmProductRespVO>> getProductPage(@Valid CrmProductPageReqVO pageVO) {
+        PageResult<CrmProductDO> pageResult = productService.getProductPage(pageVO);
+        return success(CrmProductConvert.INSTANCE.convertPage(pageResult));
     }
  
     @GetMapping("/export-excel")
     @Operation(summary = "导出产品 Excel")
     @PreAuthorize("@ss.hasPermission('crm:product:export')")
     @OperateLog(type = EXPORT)
-    public void exportProductExcel(@Valid ProductExportReqVO exportReqVO,
+    public void exportProductExcel(@Valid CrmProductExportReqVO exportReqVO,
               HttpServletResponse response) throws IOException {
-        List<ProductDO> list = productService.getProductList(exportReqVO);
+        List<CrmProductDO> list = productService.getProductList(exportReqVO);
         // 导出 Excel
-        List<ProductExcelVO> datas = ProductConvert.INSTANCE.convertList02(list);
-        ExcelUtils.write(response, "产品.xls", "数据", ProductExcelVO.class, datas);
+        List<CrmProductExcelVO> datas = CrmProductConvert.INSTANCE.convertList02(list);
+        ExcelUtils.write(response, "产品.xls", "数据", CrmProductExcelVO.class, datas);
     }
  
 }
-package cn.iocoder.yudao.module.crm.controller.admin.product.vo;
+package cn.iocoder.yudao.module.crm.controller.admin.product.vo.product;
  
 import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
  
 import javax.validation.constraints.NotNull;
  
-// TODO @zange：需要加 CRM 前置噢
+// TODO @zange-ok：需要加 CRM 前置噢
 /**
  * 产品 Base VO，提供给添加、修改、详细的子 VO 使用
  * 如果子 VO 存在差异的字段，请不要添加到这里，影响 Swagger 文档生成
  */
 @Data
-public class ProductBaseVO {
+public class CrmProductBaseVO {
  
     // TODO @zange：example 要写哈；主要是接口文档，可以基于 example 可以生产请求参数
  
-    @Schema(description = "产品名称", requiredMode = Schema.RequiredMode.REQUIRED, example = "李四")
+    @Schema(description = "产品名称", requiredMode = Schema.RequiredMode.REQUIRED, example = "好产品")
     @NotNull(message = "产品名称不能为空")
     private String name;
  
-    @Schema(description = "产品编码", requiredMode = Schema.RequiredMode.REQUIRED)
+    @Schema(description = "产品编码", requiredMode = Schema.RequiredMode.REQUIRED, example = "12306")
     @NotNull(message = "产品编码不能为空")
     private String no;
  
-    @Schema(description = "单位")
+    @Schema(description = "单位", example = "2")
     private String unit;
  
     @Schema(description = "价格", example = "8911")
     private Long price;
  
-    @Schema(description = "状态", requiredMode = Schema.RequiredMode.REQUIRED, example = "2")
+    @Schema(description = "状态", requiredMode = Schema.RequiredMode.REQUIRED, example = "上架")
     @NotNull(message = "状态不能为空")
     private Integer status;
  
-    @Schema(description = "产品分类ID", requiredMode = Schema.RequiredMode.REQUIRED, example = "1738")
+    @Schema(description = "产品分类ID", requiredMode = Schema.RequiredMode.REQUIRED, example = "2")
     @NotNull(message = "产品分类ID不能为空")
     private Long categoryId;
  
     @Schema(description = "产品描述", example = "你说的对")
     private String description;
  
-    // TODO @zange：这个字段只有 create 可以传递，update 不传递；所以放到 create 和 resp 里；
-
-    @Schema(description = "负责人的用户编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "31926")
-    @NotNull(message = "负责人的用户编号不能为空")
-    private Long ownerUserId;
+    // TODO @zange-ok：这个字段只有 create 可以传递，update 不传递；所以放到 create 和 resp 里；
  
 }
-package cn.iocoder.yudao.module.crm.controller.admin.product.vo;
+package cn.iocoder.yudao.module.crm.controller.admin.product.vo.product;
  
 import lombok.*;
-import java.util.*;
 import io.swagger.v3.oas.annotations.media.Schema;
-import javax.validation.constraints.*;
+
+import javax.validation.constraints.NotNull;
  
 @Schema(description = "管理后台 - 产品创建 Request VO")
 @Data
 @EqualsAndHashCode(callSuper = true)
 @ToString(callSuper = true)
-public class ProductCreateReqVO extends ProductBaseVO {
-
+public class CrmProductCreateReqVO extends CrmProductBaseVO {
+    @Schema(description = "负责人的用户编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "31926")
+    @NotNull(message = "负责人的用户编号不能为空")
+    private Long ownerUserId;
 }
-package cn.iocoder.yudao.module.crm.controller.admin.product.vo;
+package cn.iocoder.yudao.module.crm.controller.admin.product.vo.product;
  
 import cn.iocoder.yudao.framework.excel.core.annotations.DictFormat;
 import cn.iocoder.yudao.framework.excel.core.convert.DictConvert;
@@ -7,14 +7,14 @@ import lombok.Data;
  
 import java.time.LocalDateTime;
  
-// TODO 芋艿：这个导出最后搞
+// TODO 芋艿：这个导出最后搞   那暂时就放着不动了哈
 /**
  * 产品 Excel VO
  *
  * @author ZanGe丶
  */
 @Data
-public class ProductExcelVO {
+public class CrmProductExcelVO {
  
     @ExcelProperty("主键id")
     private Long id;
-package cn.iocoder.yudao.module.crm.controller.admin.product.vo;
+package cn.iocoder.yudao.module.crm.controller.admin.product.vo.product;
  
 import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
@@ -11,7 +11,7 @@ import static cn.iocoder.yudao.framework.common.util.date.DateUtils.FORMAT_YEAR_
 // TODO 芋艿：这个导出最后搞
 @Schema(description = "管理后台 - 产品 Excel 导出 Request VO，参数和 ProductPageReqVO 是一致的")
 @Data
-public class ProductExportReqVO {
+public class CrmProductExportReqVO {
  
     @Schema(description = "产品名称", example = "李四")
     private String name;
-package cn.iocoder.yudao.module.crm.controller.admin.product.vo;
+package cn.iocoder.yudao.module.crm.controller.admin.product.vo.product;
  
 import cn.iocoder.yudao.framework.common.pojo.PageParam;
 import io.swagger.v3.oas.annotations.media.Schema;
@@ -11,12 +11,12 @@ import java.time.LocalDateTime;
  
 import static cn.iocoder.yudao.framework.common.util.date.DateUtils.FORMAT_YEAR_MONTH_DAY_HOUR_MINUTE_SECOND;
  
-// TODO @zange：按照需求，裁剪下筛选的字段，目前应该只要 name 和 status
+// TODO @zange-ok：按照需求，裁剪下筛选的字段，目前应该只要 name 和 status
 @Schema(description = "管理后台 - 产品分页 Request VO")
 @Data
 @EqualsAndHashCode(callSuper = true)
 @ToString(callSuper = true)
-public class ProductPageReqVO extends PageParam {
+public class CrmProductPageReqVO extends PageParam {
  
     @Schema(description = "产品名称", example = "李四")
     private String name;
-package cn.iocoder.yudao.module.crm.controller.admin.product.vo;
+package cn.iocoder.yudao.module.crm.controller.admin.product.vo.product;
  
 import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.*;
+
+import javax.validation.constraints.NotNull;
 import java.time.LocalDateTime;
  
 @Schema(description = "管理后台 - 产品 Response VO")
 @Data
 @EqualsAndHashCode(callSuper = true)
 @ToString(callSuper = true)
-public class ProductRespVO extends ProductBaseVO {
+public class CrmProductRespVO extends CrmProductBaseVO {
  
     @Schema(description = "主键id", requiredMode = Schema.RequiredMode.REQUIRED, example = "20529")
     private Long id;
@@ -16,4 +18,7 @@ public class ProductRespVO extends ProductBaseVO {
     @Schema(description = "创建时间", requiredMode = Schema.RequiredMode.REQUIRED)
     private LocalDateTime createTime;
  
+    @Schema(description = "负责人的用户编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "31926")
+    @NotNull(message = "负责人的用户编号不能为空")
+    private Long ownerUserId;
 }
-package cn.iocoder.yudao.module.crm.controller.admin.product.vo;
+package cn.iocoder.yudao.module.crm.controller.admin.product.vo.product;
  
 import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.*;
-import java.util.*;
+
 import javax.validation.constraints.*;
  
 @Schema(description = "管理后台 - 产品更新 Request VO")
 @Data
 @EqualsAndHashCode(callSuper = true)
 @ToString(callSuper = true)
-public class ProductUpdateReqVO extends ProductBaseVO {
+public class CrmProductUpdateReqVO extends CrmProductBaseVO {
  
     @Schema(description = "主键id", requiredMode = Schema.RequiredMode.REQUIRED, example = "20529")
     @NotNull(message = "主键id不能为空")
-package cn.iocoder.yudao.module.crm.controller.admin.productcategory.vo;
+package cn.iocoder.yudao.module.crm.controller.admin.product.vo.productcategory;
  
 import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
@@ -10,7 +10,7 @@ import javax.validation.constraints.NotNull;
  * 如果子 VO 存在差异的字段，请不要添加到这里，影响 Swagger 文档生成
  */
 @Data
-public class ProductCategoryBaseVO {
+public class CrmProductCategoryBaseVO {
  
     @Schema(description = "名称", requiredMode = Schema.RequiredMode.REQUIRED, example = "赵六")
     @NotNull(message = "名称不能为空")
-package cn.iocoder.yudao.module.crm.controller.admin.productcategory.vo;
+package cn.iocoder.yudao.module.crm.controller.admin.product.vo.productcategory;
  
 import lombok.*;
-import java.util.*;
 import io.swagger.v3.oas.annotations.media.Schema;
-import javax.validation.constraints.*;
  
 @Schema(description = "管理后台 - 产品分类创建 Request VO")
 @Data
 @EqualsAndHashCode(callSuper = true)
 @ToString(callSuper = true)
-public class ProductCategoryCreateReqVO extends ProductCategoryBaseVO {
+public class CrmProductCategoryCreateReqVO extends CrmProductCategoryBaseVO {
  
 }
-package cn.iocoder.yudao.module.crm.controller.admin.productcategory.vo;
+package cn.iocoder.yudao.module.crm.controller.admin.product.vo.productcategory;
  
 import com.alibaba.excel.annotation.ExcelProperty;
 import io.swagger.v3.oas.annotations.media.Schema;
@@ -9,7 +9,7 @@ import java.time.LocalDateTime;
 // TODO 芋艿：这个导出最后搞；命名应该是按照 ProductExportReqVO 风格
 @Schema(description = "管理后台 - 产品分类列表 Request VO")
 @Data
-public class ProductCategoryListReqVO {
+public class CrmProductCategoryListReqVO {
  
     @ExcelProperty("名称")
     private String name;
-package cn.iocoder.yudao.module.crm.controller.admin.productcategory.vo;
+package cn.iocoder.yudao.module.crm.controller.admin.product.vo.productcategory;
  
 import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.*;
@@ -8,7 +8,7 @@ import java.time.LocalDateTime;
 @Data
 @EqualsAndHashCode(callSuper = true)
 @ToString(callSuper = true)
-public class ProductCategoryRespVO extends ProductCategoryBaseVO {
+public class CrmProductCategoryRespVO extends CrmProductCategoryBaseVO {
  
     @Schema(description = "主键id", requiredMode = Schema.RequiredMode.REQUIRED, example = "23902")
     private Long id;
-package cn.iocoder.yudao.module.crm.controller.admin.productcategory.vo;
+package cn.iocoder.yudao.module.crm.controller.admin.product.vo.productcategory;
  
 import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
@@ -11,7 +11,7 @@ import javax.validation.constraints.NotNull;
 @Data
 @EqualsAndHashCode(callSuper = true)
 @ToString(callSuper = true)
-public class ProductCategoryUpdateReqVO extends ProductCategoryBaseVO {
+public class CrmProductCategoryUpdateReqVO extends CrmProductCategoryBaseVO {
  
     @Schema(description = "主键 id", requiredMode = Schema.RequiredMode.REQUIRED, example = "23902")
     @NotNull(message = "主键 id 不能为空")
+package cn.iocoder.yudao.module.crm.convert.product;
+
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.productcategory.CrmProductCategoryCreateReqVO;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.productcategory.CrmProductCategoryRespVO;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.productcategory.CrmProductCategoryUpdateReqVO;
+import cn.iocoder.yudao.module.crm.dal.dataobject.product.CrmProductCategoryDO;
+import org.mapstruct.Mapper;
+import org.mapstruct.factory.Mappers;
+
+import java.util.List;
+
+/**
+ * 产品分类 Convert
+ *
+ * @author ZanGe丶
+ */
+@Mapper
+public interface CrmProductCategoryConvert {
+
+    CrmProductCategoryConvert INSTANCE = Mappers.getMapper(CrmProductCategoryConvert.class);
+
+    CrmProductCategoryDO convert(CrmProductCategoryCreateReqVO bean);
+
+    CrmProductCategoryDO convert(CrmProductCategoryUpdateReqVO bean);
+
+    CrmProductCategoryRespVO convert(CrmProductCategoryDO bean);
+
+    List<CrmProductCategoryRespVO> convertList(List<CrmProductCategoryDO> list);
+
+}
+package cn.iocoder.yudao.module.crm.convert.product;
+
+import cn.iocoder.yudao.framework.common.pojo.PageResult;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.product.CrmProductCreateReqVO;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.product.CrmProductExcelVO;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.product.CrmProductRespVO;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.product.CrmProductUpdateReqVO;
+import cn.iocoder.yudao.module.crm.dal.dataobject.product.CrmProductDO;
+import org.mapstruct.Mapper;
+import org.mapstruct.factory.Mappers;
+
+import java.util.List;
+
+/**
+ * 产品 Convert
+ *
+ * @author ZanGe丶
+ */
+@Mapper
+public interface CrmProductConvert {
+
+    CrmProductConvert INSTANCE = Mappers.getMapper(CrmProductConvert.class);
+
+    CrmProductDO convert(CrmProductCreateReqVO bean);
+
+    CrmProductDO convert(CrmProductUpdateReqVO bean);
+
+    CrmProductRespVO convert(CrmProductDO bean);
+
+    List<CrmProductRespVO> convertList(List<CrmProductDO> list);
+
+    PageResult<CrmProductRespVO> convertPage(PageResult<CrmProductDO> page);
+
+    List<CrmProductExcelVO> convertList02(List<CrmProductDO> list);
+
+}
-package cn.iocoder.yudao.module.crm.convert.product;
-
-import java.util.*;
-
-import cn.iocoder.yudao.framework.common.pojo.PageResult;
-
-import org.mapstruct.Mapper;
-import org.mapstruct.factory.Mappers;
-import cn.iocoder.yudao.module.crm.controller.admin.product.vo.*;
-import cn.iocoder.yudao.module.crm.dal.dataobject.product.ProductDO;
-
-/**
- * 产品 Convert
- *
- * @author ZanGe丶
- */
-@Mapper
-public interface ProductConvert {
-
-    ProductConvert INSTANCE = Mappers.getMapper(ProductConvert.class);
-
-    ProductDO convert(ProductCreateReqVO bean);
-
-    ProductDO convert(ProductUpdateReqVO bean);
-
-    ProductRespVO convert(ProductDO bean);
-
-    List<ProductRespVO> convertList(List<ProductDO> list);
-
-    PageResult<ProductRespVO> convertPage(PageResult<ProductDO> page);
-
-    List<ProductExcelVO> convertList02(List<ProductDO> list);
-
-}
-package cn.iocoder.yudao.module.crm.convert.productcategory;
-
-import java.util.*;
-
-import cn.iocoder.yudao.framework.common.pojo.PageResult;
-
-import org.mapstruct.Mapper;
-import org.mapstruct.factory.Mappers;
-import cn.iocoder.yudao.module.crm.controller.admin.productcategory.vo.*;
-import cn.iocoder.yudao.module.crm.dal.dataobject.productcategory.ProductCategoryDO;
-
-/**
- * 产品分类 Convert
- *
- * @author ZanGe丶
- */
-@Mapper
-public interface ProductCategoryConvert {
-
-    ProductCategoryConvert INSTANCE = Mappers.getMapper(ProductCategoryConvert.class);
-
-    ProductCategoryDO convert(ProductCategoryCreateReqVO bean);
-
-    ProductCategoryDO convert(ProductCategoryUpdateReqVO bean);
-
-    ProductCategoryRespVO convert(ProductCategoryDO bean);
-
-    List<ProductCategoryRespVO> convertList(List<ProductCategoryDO> list);
-
-}
-package cn.iocoder.yudao.module.crm.dal.dataobject.productcategory;
+package cn.iocoder.yudao.module.crm.dal.dataobject.product;
  
 import cn.iocoder.yudao.framework.mybatis.core.dataobject.BaseDO;
 import com.baomidou.mybatisplus.annotation.KeySequence;
@@ -19,7 +19,16 @@ import lombok.*;
 @Builder
 @NoArgsConstructor
 @AllArgsConstructor
-public class ProductCategoryDO extends BaseDO {
+public class CrmProductCategoryDO extends BaseDO {
+
+    /**
+     * 父分类编号 - 根分类
+     */
+    public static final Long PARENT_ID_NULL = 0L;
+    /**
+     * 限定分类层级
+     */
+    public static final int CATEGORY_LEVEL = 2;
  
     /**
      * 主键id
@@ -32,7 +41,7 @@ public class ProductCategoryDO extends BaseDO {
     private String name;
     /**
      * 父级 id
-     * // TODO @zange：这个要写下关联 CategoryDO 的 id 字段；参考下别的模块哈
+     * // TODO @zange-ok：这个要写下关联 CategoryDO 的 id 字段；参考下别的模块哈
      */
     private Long parentId;
  
 package cn.iocoder.yudao.module.crm.dal.dataobject.product;
  
 import cn.iocoder.yudao.framework.mybatis.core.dataobject.BaseDO;
+import cn.iocoder.yudao.module.crm.enums.product.CrmProductStatusEnum;
 import com.baomidou.mybatisplus.annotation.KeySequence;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
@@ -19,7 +20,7 @@ import lombok.*;
 @Builder
 @NoArgsConstructor
 @AllArgsConstructor
-public class ProductDO extends BaseDO {
+public class CrmProductDO extends BaseDO {
  
     /**
      * 主键 id
@@ -44,14 +45,12 @@ public class ProductDO extends BaseDO {
     private Long price;
     /**
      * 状态
-     *
-     * 枚举 {@link TODO crm_product_status 对应的类}
-     * // TODO @zange：这个写个枚举类，然后 {@link关联下
+     * 关联 {@link CrmProductStatusEnum}
      */
     private Integer status;
     /**
      * 产品分类 ID
-     * // TODO @zange：这个要写下关联 CategoryDO 的 id 字段；参考下别的模块哈
+     * 关联 {@link CrmProductCategoryDO#id}
      */
     private Long categoryId;
     /**
+package cn.iocoder.yudao.module.crm.dal.mysql.product;
+
+import cn.iocoder.yudao.framework.mybatis.core.mapper.BaseMapperX;
+import cn.iocoder.yudao.framework.mybatis.core.query.LambdaQueryWrapperX;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.productcategory.CrmProductCategoryListReqVO;
+import cn.iocoder.yudao.module.crm.dal.dataobject.product.CrmProductCategoryDO;
+import org.apache.ibatis.annotations.Mapper;
+
+import java.util.List;
+
+/**
+ * 产品分类 Mapper
+ *
+ * @author ZanGe丶
+ */
+@Mapper
+public interface CrmProductCategoryMapper extends BaseMapperX<CrmProductCategoryDO> {
+
+
+    default List<CrmProductCategoryDO> selectList(CrmProductCategoryListReqVO reqVO) {
+        return selectList(new LambdaQueryWrapperX<CrmProductCategoryDO>()
+                .likeIfPresent(CrmProductCategoryDO::getName, reqVO.getName())
+                .eqIfPresent(CrmProductCategoryDO::getParentId, reqVO.getParentId())
+                .orderByDesc(CrmProductCategoryDO::getId));
+    }
+    default CrmProductCategoryDO selectByName(String name) {
+        return selectOne(CrmProductCategoryDO::getName, name);
+    }
+
+    default Long selectCountByParentId(Long parentId) {
+        return selectCount(CrmProductCategoryDO::getParentId, parentId);
+    }
+}
+package cn.iocoder.yudao.module.crm.dal.mysql.product;
+
+import cn.iocoder.yudao.framework.common.pojo.PageResult;
+import cn.iocoder.yudao.framework.mybatis.core.mapper.BaseMapperX;
+import cn.iocoder.yudao.framework.mybatis.core.query.LambdaQueryWrapperX;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.product.CrmProductExportReqVO;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.product.CrmProductPageReqVO;
+import cn.iocoder.yudao.module.crm.dal.dataobject.product.CrmProductDO;
+import org.apache.ibatis.annotations.Mapper;
+
+import java.util.List;
+
+/**
+ * 产品 Mapper
+ *
+ * @author ZanGe丶
+ */
+@Mapper
+public interface CrmProductMapper extends BaseMapperX<CrmProductDO> {
+
+    default PageResult<CrmProductDO> selectPage(CrmProductPageReqVO reqVO) {
+        return selectPage(reqVO, new LambdaQueryWrapperX<CrmProductDO>()
+                .likeIfPresent(CrmProductDO::getName, reqVO.getName())
+                .eqIfPresent(CrmProductDO::getStatus, reqVO.getStatus())
+                .orderByDesc(CrmProductDO::getId));
+    }
+
+    default List<CrmProductDO> selectList(CrmProductExportReqVO reqVO) {
+        return selectList(new LambdaQueryWrapperX<CrmProductDO>()
+                .likeIfPresent(CrmProductDO::getName, reqVO.getName())
+                .eqIfPresent(CrmProductDO::getStatus, reqVO.getStatus())
+                .orderByDesc(CrmProductDO::getId));
+    }
+
+    default CrmProductDO selectByNo(String no) {
+        return selectOne(CrmProductDO::getNo, no);
+    }
+}
-package cn.iocoder.yudao.module.crm.dal.mysql.product;
-
-import java.util.*;
-
-import cn.iocoder.yudao.framework.common.pojo.PageResult;
-import cn.iocoder.yudao.framework.mybatis.core.query.LambdaQueryWrapperX;
-import cn.iocoder.yudao.framework.mybatis.core.mapper.BaseMapperX;
-import cn.iocoder.yudao.module.crm.dal.dataobject.product.ProductDO;
-import org.apache.ibatis.annotations.Mapper;
-import cn.iocoder.yudao.module.crm.controller.admin.product.vo.*;
-
-/**
- * 产品 Mapper
- *
- * @author ZanGe丶
- */
-@Mapper
-public interface ProductMapper extends BaseMapperX<ProductDO> {
-
-    default PageResult<ProductDO> selectPage(ProductPageReqVO reqVO) {
-        return selectPage(reqVO, new LambdaQueryWrapperX<ProductDO>()
-                .likeIfPresent(ProductDO::getName, reqVO.getName())
-                .likeIfPresent(ProductDO::getNo, reqVO.getNo())
-                .eqIfPresent(ProductDO::getUnit, reqVO.getUnit())
-                .eqIfPresent(ProductDO::getPrice, reqVO.getPrice())
-                .eqIfPresent(ProductDO::getStatus, reqVO.getStatus())
-                .eqIfPresent(ProductDO::getCategoryId, reqVO.getCategoryId())
-                .eqIfPresent(ProductDO::getDescription, reqVO.getDescription())
-                .eqIfPresent(ProductDO::getOwnerUserId, reqVO.getOwnerUserId())
-                .betweenIfPresent(ProductDO::getCreateTime, reqVO.getCreateTime())
-                .orderByDesc(ProductDO::getId));
-    }
-
-    default List<ProductDO> selectList(ProductExportReqVO reqVO) {
-        return selectList(new LambdaQueryWrapperX<ProductDO>()
-                .likeIfPresent(ProductDO::getName, reqVO.getName())
-                .likeIfPresent(ProductDO::getNo, reqVO.getNo())
-                .eqIfPresent(ProductDO::getUnit, reqVO.getUnit())
-                .eqIfPresent(ProductDO::getPrice, reqVO.getPrice())
-                .eqIfPresent(ProductDO::getStatus, reqVO.getStatus())
-                .eqIfPresent(ProductDO::getCategoryId, reqVO.getCategoryId())
-                .eqIfPresent(ProductDO::getDescription, reqVO.getDescription())
-                .eqIfPresent(ProductDO::getOwnerUserId, reqVO.getOwnerUserId())
-                .betweenIfPresent(ProductDO::getCreateTime, reqVO.getCreateTime())
-                .orderByDesc(ProductDO::getId));
-    }
-
-}
-package cn.iocoder.yudao.module.crm.dal.mysql.productcategory;
-
-import java.util.*;
-
-import cn.iocoder.yudao.framework.common.pojo.PageResult;
-import cn.iocoder.yudao.framework.mybatis.core.query.LambdaQueryWrapperX;
-import cn.iocoder.yudao.framework.mybatis.core.mapper.BaseMapperX;
-import cn.iocoder.yudao.module.crm.dal.dataobject.productcategory.ProductCategoryDO;
-import org.apache.ibatis.annotations.Mapper;
-import cn.iocoder.yudao.module.crm.controller.admin.productcategory.vo.*;
-
-/**
- * 产品分类 Mapper
- *
- * @author ZanGe丶
- */
-@Mapper
-public interface ProductCategoryMapper extends BaseMapperX<ProductCategoryDO> {
-
-
-    default List<ProductCategoryDO> selectList(ProductCategoryListReqVO reqVO) {
-        return selectList(new LambdaQueryWrapperX<ProductCategoryDO>()
-                .likeIfPresent(ProductCategoryDO::getName, reqVO.getName())
-                .eqIfPresent(ProductCategoryDO::getParentId, reqVO.getParentId())
-                .orderByDesc(ProductCategoryDO::getId));
-    }
-
-}
-package cn.iocoder.yudao.module.crm.service.productcategory;
+package cn.iocoder.yudao.module.crm.service.product;
  
-import java.util.*;
-import javax.validation.*;
-import cn.iocoder.yudao.module.crm.controller.admin.productcategory.vo.*;
-import cn.iocoder.yudao.module.crm.dal.dataobject.productcategory.ProductCategoryDO;
-import cn.iocoder.yudao.framework.common.pojo.PageResult;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.productcategory.CrmProductCategoryCreateReqVO;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.productcategory.CrmProductCategoryListReqVO;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.productcategory.CrmProductCategoryUpdateReqVO;
+import cn.iocoder.yudao.module.crm.dal.dataobject.product.CrmProductCategoryDO;
+
+import javax.validation.Valid;
+import java.util.List;
  
 /**
  * 产品分类 Service 接口
  *
  * @author ZanGe丶
  */
-public interface ProductCategoryService {
+public interface CrmProductCategoryService {
  
     /**
      * 创建产品分类
@@ -19,14 +21,14 @@ public interface ProductCategoryService {
      * @param createReqVO 创建信息
      * @return 编号
      */
-    Long createProductCategory(@Valid ProductCategoryCreateReqVO createReqVO);
+    Long createProductCategory(@Valid CrmProductCategoryCreateReqVO createReqVO);
  
     /**
      * 更新产品分类
      *
      * @param updateReqVO 更新信息
      */
-    void updateProductCategory(@Valid ProductCategoryUpdateReqVO updateReqVO);
+    void updateProductCategory(@Valid CrmProductCategoryUpdateReqVO updateReqVO);
  
     /**
      * 删除产品分类
@@ -41,7 +43,7 @@ public interface ProductCategoryService {
      * @param id 编号
      * @return 产品分类
      */
-    ProductCategoryDO getProductCategory(Long id);
+    CrmProductCategoryDO getProductCategory(Long id);
  
     /**
      * 获得产品分类列表
@@ -49,6 +51,6 @@ public interface ProductCategoryService {
      * @param ids 编号
      * @return 产品分类列表
      */
-    List<ProductCategoryDO> getProductCategoryList(ProductCategoryListReqVO treeListReqVO);
+    List<CrmProductCategoryDO> getProductCategoryList(CrmProductCategoryListReqVO treeListReqVO);
  
 }
-package cn.iocoder.yudao.module.crm.service.productcategory;
+package cn.iocoder.yudao.module.crm.service.product;
  
-import cn.iocoder.yudao.module.crm.controller.admin.productcategory.vo.ProductCategoryCreateReqVO;
-import cn.iocoder.yudao.module.crm.controller.admin.productcategory.vo.ProductCategoryListReqVO;
-import cn.iocoder.yudao.module.crm.controller.admin.productcategory.vo.ProductCategoryUpdateReqVO;
-import cn.iocoder.yudao.module.crm.convert.productcategory.ProductCategoryConvert;
-import cn.iocoder.yudao.module.crm.dal.dataobject.productcategory.ProductCategoryDO;
-import cn.iocoder.yudao.module.crm.dal.mysql.productcategory.ProductCategoryMapper;
+import cn.hutool.core.util.ObjUtil;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.productcategory.CrmProductCategoryCreateReqVO;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.productcategory.CrmProductCategoryListReqVO;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.productcategory.CrmProductCategoryUpdateReqVO;
+import cn.iocoder.yudao.module.crm.convert.product.CrmProductCategoryConvert;
+import cn.iocoder.yudao.module.crm.dal.dataobject.product.CrmProductCategoryDO;
+import cn.iocoder.yudao.module.crm.dal.mysql.product.CrmProductCategoryMapper;
+import org.springframework.context.annotation.Lazy;
 import org.springframework.stereotype.Service;
 import org.springframework.validation.annotation.Validated;
  
 import javax.annotation.Resource;
 import java.util.List;
+import java.util.Objects;
  
 import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
-import static cn.iocoder.yudao.module.crm.enums.ErrorCodeConstants.PRODUCT_CATEGORY_NOT_EXISTS;
+import static cn.iocoder.yudao.module.crm.dal.dataobject.product.CrmProductCategoryDO.PARENT_ID_NULL;
+import static cn.iocoder.yudao.module.crm.enums.ErrorCodeConstants.*;
  
-// TODO @zange：这个类所在的包，放到 product 下；
+// TODO @zange-ok：这个类所在的包，放到 product 下；
 /**
  * 产品分类 Service 实现类
  *
@@ -23,28 +27,46 @@ import static cn.iocoder.yudao.module.crm.enums.ErrorCodeConstants.PRODUCT_CATEG
  */
 @Service
 @Validated
-public class ProductCategoryServiceImpl implements ProductCategoryService {
+public class CrmProductCategoryServiceImpl implements CrmProductCategoryService {
  
     @Resource
-    private ProductCategoryMapper productCategoryMapper;
+    private CrmProductCategoryMapper productCategoryMapper;
+    @Resource
+    @Lazy
+    private CrmProductService crmProductService;
  
     @Override
-    public Long createProductCategory(ProductCategoryCreateReqVO createReqVO) {
+    public Long createProductCategory(CrmProductCategoryCreateReqVO createReqVO) {
         // TODO zange：参考 mall： ProductCategoryServiceImpl 补充下必要的参数校验；
+        // 校验父分类存在
+        validateParentProductCategory(createReqVO.getParentId());
+        // 分类名称是否存在
+        CrmProductCategoryDO dbProductCategory = productCategoryMapper.selectByName(createReqVO.getName());
+        if (dbProductCategory != null) {
+            return dbProductCategory.getId();
+        }
         // 插入
-        ProductCategoryDO productCategory = ProductCategoryConvert.INSTANCE.convert(createReqVO);
+        CrmProductCategoryDO productCategory = CrmProductCategoryConvert.INSTANCE.convert(createReqVO);
         productCategoryMapper.insert(productCategory);
         // 返回
         return productCategory.getId();
     }
  
     @Override
-    public void updateProductCategory(ProductCategoryUpdateReqVO updateReqVO) {
+    public void updateProductCategory(CrmProductCategoryUpdateReqVO updateReqVO) {
         // TODO zange：参考 mall： ProductCategoryServiceImpl 补充下必要的参数校验；
         // 校验存在
         validateProductCategoryExists(updateReqVO.getId());
+        // 校验父分类存在
+        validateParentProductCategory(updateReqVO.getParentId());
+        // 校验名字重复
+        CrmProductCategoryDO productCategoryDO = productCategoryMapper.selectByName(updateReqVO.getName());
+        if (productCategoryDO != null &&
+                ObjUtil.notEqual(productCategoryDO.getId(), updateReqVO.getId())) {
+            throw exception(CRM_PRODUCT_CATEGORY_EXISTS);
+        }
         // 更新
-        ProductCategoryDO updateObj = ProductCategoryConvert.INSTANCE.convert(updateReqVO);
+        CrmProductCategoryDO updateObj = CrmProductCategoryConvert.INSTANCE.convert(updateReqVO);
         productCategoryMapper.updateById(updateObj);
     }
  
@@ -53,23 +75,47 @@ public class ProductCategoryServiceImpl implements ProductCategoryService {
         // TODO zange：参考 mall： ProductCategoryServiceImpl 补充下必要的参数校验；
         // 校验存在
         validateProductCategoryExists(id);
+        // 校验是否还有子分类
+        if (productCategoryMapper.selectCountByParentId(id) > 0) {
+            throw exception(CRM_CATEGORY_EXISTS_CHILDREN);
+        }
+        // 校验是否被产品使用
+        if (crmProductService.getProductByCategoryId(id) !=null) {
+            throw exception(CRM_PRODUCT_CATEGORY_USED);
+        }
         // 删除
         productCategoryMapper.deleteById(id);
     }
  
     private void validateProductCategoryExists(Long id) {
         if (productCategoryMapper.selectById(id) == null) {
-            throw exception(PRODUCT_CATEGORY_NOT_EXISTS);
+            throw exception(CRM_PRODUCT_CATEGORY_NOT_EXISTS);
+        }
+    }
+
+    private void validateParentProductCategory(Long id) {
+        // 如果是根分类，无需验证
+        if (Objects.equals(id, PARENT_ID_NULL)) {
+            return;
+        }
+        // 父分类不存在
+        CrmProductCategoryDO category = productCategoryMapper.selectById(id);
+        if (category == null) {
+            throw exception(CRM_CATEGORY_PARENT_NOT_EXISTS);
+        }
+        // 父分类不能是二级分类
+        if (!Objects.equals(category.getParentId(), PARENT_ID_NULL)) {
+            throw exception(CRM_CATEGORY_PARENT_NOT_FIRST_LEVEL);
         }
     }
  
     @Override
-    public ProductCategoryDO getProductCategory(Long id) {
+    public CrmProductCategoryDO getProductCategory(Long id) {
         return productCategoryMapper.selectById(id);
     }
  
     @Override
-    public List<ProductCategoryDO> getProductCategoryList(ProductCategoryListReqVO treeListReqVO) {
+    public List<CrmProductCategoryDO> getProductCategoryList(CrmProductCategoryListReqVO treeListReqVO) {
         return productCategoryMapper.selectList(treeListReqVO);
     }
  
 package cn.iocoder.yudao.module.crm.service.product;
  
-import java.util.*;
-import javax.validation.*;
-import cn.iocoder.yudao.module.crm.controller.admin.product.vo.*;
-import cn.iocoder.yudao.module.crm.dal.dataobject.product.ProductDO;
 import cn.iocoder.yudao.framework.common.pojo.PageResult;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.product.CrmProductCreateReqVO;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.product.CrmProductExportReqVO;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.product.CrmProductPageReqVO;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.product.CrmProductUpdateReqVO;
+import cn.iocoder.yudao.module.crm.dal.dataobject.product.CrmProductDO;
+
+import javax.validation.Valid;
+import java.util.Collection;
+import java.util.List;
  
 /**
  * 产品 Service 接口
  *
  * @author ZanGe丶
  */
-public interface ProductService {
+public interface CrmProductService {
  
     /**
      * 创建产品
@@ -19,14 +24,14 @@ public interface ProductService {
      * @param createReqVO 创建信息
      * @return 编号
      */
-    Long createProduct(@Valid ProductCreateReqVO createReqVO);
+    Long createProduct(@Valid CrmProductCreateReqVO createReqVO);
  
     /**
      * 更新产品
      *
      * @param updateReqVO 更新信息
      */
-    void updateProduct(@Valid ProductUpdateReqVO updateReqVO);
+    void updateProduct(@Valid CrmProductUpdateReqVO updateReqVO);
  
     /**
      * 删除产品
@@ -41,7 +46,7 @@ public interface ProductService {
      * @param id 编号
      * @return 产品
      */
-    ProductDO getProduct(Long id);
+    CrmProductDO getProduct(Long id);
  
     /**
      * 获得产品列表
@@ -49,7 +54,7 @@ public interface ProductService {
      * @param ids 编号
      * @return 产品列表
      */
-    List<ProductDO> getProductList(Collection<Long> ids);
+    List<CrmProductDO> getProductList(Collection<Long> ids);
  
     /**
      * 获得产品分页
@@ -57,7 +62,7 @@ public interface ProductService {
      * @param pageReqVO 分页查询
      * @return 产品分页
      */
-    PageResult<ProductDO> getProductPage(ProductPageReqVO pageReqVO);
+    PageResult<CrmProductDO> getProductPage(CrmProductPageReqVO pageReqVO);
  
     /**
      * 获得产品列表, 用于 Excel 导出
@@ -65,6 +70,13 @@ public interface ProductService {
      * @param exportReqVO 查询条件
      * @return 产品列表
      */
-    List<ProductDO> getProductList(ProductExportReqVO exportReqVO);
+    List<CrmProductDO> getProductList(CrmProductExportReqVO exportReqVO);
  
+    /**
+     * 获得产品
+     *
+     * @param categoryId 分类编号
+     * @return 产品
+     */
+    CrmProductDO getProductByCategoryId(Long categoryId);
 }
@@ -3,13 +3,14 @@ package cn.iocoder.yudao.module.crm.service.product;
 import cn.hutool.core.collection.CollUtil;
 import cn.hutool.core.collection.ListUtil;
 import cn.iocoder.yudao.framework.common.pojo.PageResult;
-import cn.iocoder.yudao.module.crm.controller.admin.product.vo.ProductCreateReqVO;
-import cn.iocoder.yudao.module.crm.controller.admin.product.vo.ProductExportReqVO;
-import cn.iocoder.yudao.module.crm.controller.admin.product.vo.ProductPageReqVO;
-import cn.iocoder.yudao.module.crm.controller.admin.product.vo.ProductUpdateReqVO;
-import cn.iocoder.yudao.module.crm.convert.product.ProductConvert;
-import cn.iocoder.yudao.module.crm.dal.dataobject.product.ProductDO;
-import cn.iocoder.yudao.module.crm.dal.mysql.product.ProductMapper;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.product.CrmProductCreateReqVO;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.product.CrmProductExportReqVO;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.product.CrmProductPageReqVO;
+import cn.iocoder.yudao.module.crm.controller.admin.product.vo.product.CrmProductUpdateReqVO;
+import cn.iocoder.yudao.module.crm.convert.product.CrmProductConvert;
+import cn.iocoder.yudao.module.crm.dal.dataobject.product.CrmProductCategoryDO;
+import cn.iocoder.yudao.module.crm.dal.dataobject.product.CrmProductDO;
+import cn.iocoder.yudao.module.crm.dal.mysql.product.CrmProductMapper;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import org.springframework.stereotype.Service;
 import org.springframework.validation.annotation.Validated;
@@ -19,8 +20,7 @@ import java.util.Collection;
 import java.util.List;
  
 import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
-import static cn.iocoder.yudao.module.crm.enums.ErrorCodeConstants.PRODUCT_NOT_EXISTS;
-import static cn.iocoder.yudao.module.crm.enums.ErrorCodeConstants.PRODUCT_NO_EXISTS;
+import static cn.iocoder.yudao.module.crm.enums.ErrorCodeConstants.*;
  
 /**
  * 产品 Service 实现类
@@ -29,59 +29,67 @@ import static cn.iocoder.yudao.module.crm.enums.ErrorCodeConstants.PRODUCT_NO_EX
  */
 @Service
 @Validated
-public class ProductServiceImpl implements ProductService {
+public class CrmProductServiceImpl implements CrmProductService {
  
     @Resource
-    private ProductMapper productMapper;
+    private CrmProductMapper productMapper;
+    @Resource
+    private CrmProductCategoryService productCategoryService;
  
     @Override
-    public Long createProduct(ProductCreateReqVO createReqVO) {
+    public Long createProduct(CrmProductCreateReqVO createReqVO) {
         // 校验产品编号是否存在
-        validateProductNo(createReqVO.getNo());
-        // TODO @zange：需要校验 categoryId 是否存在；
+        validateProductNoDuplicate(createReqVO.getNo());
+        // TODO @zange-ok：需要校验 categoryId 是否存在；
+        validateProductCategoryExists(createReqVO.getCategoryId());
         // 插入
-        ProductDO product = ProductConvert.INSTANCE.convert(createReqVO);
+        CrmProductDO product = CrmProductConvert.INSTANCE.convert(createReqVO);
         productMapper.insert(product);
         // 返回
         return product.getId();
     }
  
     @Override
-    public void updateProduct(ProductUpdateReqVO updateReqVO) {
+    public void updateProduct(CrmProductUpdateReqVO updateReqVO) {
         // 校验存在
-        validateProductExists(updateReqVO.getId(), updateReqVO.getNo());
-        // TODO @zange：需要校验 categoryId 是否存在；
+        validateProductExists(updateReqVO.getId());
+        // TODO @zange-ok：需要校验 categoryId 是否存在；
+        validateProductCategoryExists(updateReqVO.getCategoryId());
         // 更新
-        ProductDO updateObj = ProductConvert.INSTANCE.convert(updateReqVO);
+        CrmProductDO updateObj = CrmProductConvert.INSTANCE.convert(updateReqVO);
         productMapper.updateById(updateObj);
     }
  
     @Override
     public void deleteProduct(Long id) {
         // 校验存在
-        validateProductExists(id, null);
+        validateProductExists(id);
         // 删除
         productMapper.deleteById(id);
     }
  
-    // TODO @zange：validateProductExists 要不只校验是否存在；然后是否 no 重复，交给 validateProductNo，名字改成 validateProductNoDuplicate，和别的模块保持一致哈；
-    private void validateProductExists(Long id, String no) {
-        ProductDO product = productMapper.selectById(id);
+    // TODO @zange-ok：validateProductExists 要不只校验是否存在；然后是否 no 重复，交给 validateProductNo，名字改成 validateProductNoDuplicate，和别的模块保持一致哈；
+    private void validateProductExists(Long id) {
+        CrmProductDO product = productMapper.selectById(id);
         if (product == null) {
-            throw exception(PRODUCT_NOT_EXISTS);
+            throw exception(CRM_PRODUCT_NOT_EXISTS);
         }
-        if (no != null && no.equals(product.getNo())) {
-            throw exception(PRODUCT_NO_EXISTS);
+    }
+
+    private void validateProductCategoryExists(Long categoryId) {
+        CrmProductCategoryDO productCategory = productCategoryService.getProductCategory(categoryId);
+        if (productCategory == null) {
+            throw exception(CRM_PRODUCT_CATEGORY_NOT_EXISTS);
         }
     }
  
     @Override
-    public ProductDO getProduct(Long id) {
+    public CrmProductDO getProduct(Long id) {
         return productMapper.selectById(id);
     }
  
     @Override
-    public List<ProductDO> getProductList(Collection<Long> ids) {
+    public List<CrmProductDO> getProductList(Collection<Long> ids) {
         if (CollUtil.isEmpty(ids)) {
             return ListUtil.empty();
         }
@@ -89,19 +97,24 @@ public class ProductServiceImpl implements ProductService {
     }
  
     @Override
-    public PageResult<ProductDO> getProductPage(ProductPageReqVO pageReqVO) {
+    public PageResult<CrmProductDO> getProductPage(CrmProductPageReqVO pageReqVO) {
         return productMapper.selectPage(pageReqVO);
     }
  
     @Override
-    public List<ProductDO> getProductList(ProductExportReqVO exportReqVO) {
+    public List<CrmProductDO> getProductList(CrmProductExportReqVO exportReqVO) {
         return productMapper.selectList(exportReqVO);
     }
  
-    private void validateProductNo(String no) {
-        ProductDO product = productMapper.selectOne(new LambdaQueryWrapper<ProductDO>().eq(ProductDO::getNo, no));
+    @Override
+    public CrmProductDO getProductByCategoryId(Long categoryId) {
+        return productMapper.selectOne(new LambdaQueryWrapper<CrmProductDO>().eq(CrmProductDO::getCategoryId, categoryId));
+    }
+
+    private void validateProductNoDuplicate(String no) {
+        CrmProductDO product = productMapper.selectOne(new LambdaQueryWrapper<CrmProductDO>().eq(CrmProductDO::getNo, no));
         if (product != null) {
-            throw exception(PRODUCT_NO_EXISTS);
+            throw exception(CRM_PRODUCT_NO_EXISTS);
         }
     }