自定义RSQL占位符(placeholder)及在权限中使用

1 自定义RSQL占位符常用场景

  • 统一的数据权限配置
  • 查询表达式的上下文变量扩展

2 自定义RSQL的模板

/**
 * 演示Placeholder占位符基本定义
 *
 * @author Adamancy Zhang at 13:53 on 2024-03-24
 */
@Component
public class DemoPlaceHolder extends AbstractPlaceHolderParser {

    private static final String PLACEHOLDER_KEY = "${thisPlaceholder}";

    /**
     * 占位符
     *
     * @return placeholder
     */
    @Override
    public String namespace() {
        return PLACEHOLDER_KEY;
    }

    /**
     * 占位符替换值
     *
     * @return the placeholder replace to the value
     */
    @Override
    protected String value() {
        return PamirsSession.getUserId().toString();
    }

    /**
     * 优先级
     *
     * @return execution order of placeholders, ascending order.
     */
    @Override
    public Integer priority() {
        return 0;
    }

    /**
     * 是否激活
     *
     * @return the placeholder is activated
     */
    @Override
    public Boolean active() {
        return true;
    }
}

注意事项

  • 在一些旧版本中,priorityactive可能不起作用,为保证升级时不受影响,请保证该属性配置正确。

  • PLACEHOLDER_KEY变量表示自定义占位符使用的关键字,需按照所需业务场景的具体功能并根据上下文语义正确定义。

  • 为保证占位符可以被正确替换并执行,所有占位符都不应该出现重复,尤其是不能与系统内置的重复。

3 占位符使用时的优先级问题

多个占位符在进行替换时,会根据优先级按升序顺序执行,如需要指定替换顺序,可使用SpringOrder注解对其进行排序。

import org.springframework.core.annotation.Order;

@Order(0)

4 Oinone平台内置的占位符

占位符 数据类型 含义 备注
${currentUser} String 当前用户ID 未登录时无法使用
${currentRoles} Set<String> 当前用户的角色ID集合 未登录时无法使用

5 如何覆盖平台内置的占位符?

通过指定占位符的优先级,并定义相同的namespace可优先替换。

6 如何定义会话级别的上下文变量?

在上述模板中,我们使用的是Oinone平台内置的上下文变量进行演示,通常情况下,我们需要根据实际业务场景增加上下文变量,以此来实现所需功能。

下面,我们将根据当前用户获取当前员工ID定义该上下文变量进行演示。

/**
 * 员工Session
 *
 * @author Adamancy Zhang at 14:33 on 2024-03-24
 */
@Component
public class EmployeeSession implements HookBefore {

    private static final String SESSION_KEY = "CUSTOM_EMPLOYEE_ID";

    @Autowired
    private DemoEmployeeService demoEmployeeService;

    public static String getEmployeeId() {
        return PamirsSession.getTransmittableExtend().get(SESSION_KEY);
    }

    @Override
    @Hook(priority = 1)
    public Object run(Function function, Object... args) {
        Long userId = PamirsSession.getUserId();
        if (userId == null) {
            return function;
        }
        if (StringUtils.isBlank(EmployeeSession.getEmployeeId())) {
            PamirsSession.getTransmittableExtend().put(SESSION_KEY, getCurrentEmployeeId());
        }
        return function;
    }

    private String getCurrentEmployeeId() {
        String employeeId = getEmployeeIdByCache();
        if (employeeId == null) {
            employeeId = demoEmployeeService.getCurrentEmployeeId();
        }
        return employeeId;
    }

    private String getEmployeeIdByCache() {
        // do something.
        return null;
    }
}

注意事项

  • 使用HookBefore在请求发起时向上下文中设置employeeId,使用EmployeeSession.getEmployeeId()获取即可。

  • HookBefore的优先级设置为priority = 1,需要该Hook在平台内置的UserHook之后执行,以确保PamirsSession.getUserId()中的值已经被正确设置。

  • DemoEmployeeService服务应使用平台@Fun@Function注解进行实现,以确保该Session可在分布式环境中正确运行。

  • getEmployeeIdByCache方法需自行实现,在运行时使用缓存可有效提高性能。

7 将员工Sessionplaceholder中使用

DemoPlaceHolder改写,使用${currentEmployeeId}获取员工Session中保存的employeeId

/**
 * 演示Placeholder占位符使用员工Session
 *
 * @author Adamancy Zhang at 15:02 on 2024-03-24
 */
@Component
public class DemoPlaceHolder extends AbstractPlaceHolderParser {

    private static final String PLACEHOLDER_KEY = "${currentEmployeeId}";

    /**
     * 占位符
     *
     * @return placeholder
     */
    @Override
    public String namespace() {
        return PLACEHOLDER_KEY;
    }

    /**
     * 占位符替换值
     *
     * @return the placeholder replace to the value
     */
    @Override
    protected String value() {
        return EmployeeSession.getEmployeeId();
    }

    /**
     * 优先级
     *
     * @return execution order of placeholders, ascending order.
     */
    @Override
    public Integer priority() {
        return 0;
    }

    /**
     * 是否激活
     *
     * @return the placeholder is activated
     */
    @Override
    public Boolean active() {
        return true;
    }
}

至此,我们已完成了一个员工ID占位符。

8 在权限配置时使用该占位符作为过滤条件

下面,我们将模拟一个简单业务场景,详细介绍该占位符如何在业务中使用。

8.1 场景描述

当前系统中包含部门员工两个模型,模型的基本定义如下所示:

部门

/**
 * 演示部门
 *
 * @author Adamancy Zhang at 15:18 on 2024-03-24
 */
@Model.model(DemoDepartment.MODEL_MODEL)
@Model(displayName = "演示部门", labelFields = "name")
public class DemoDepartment extends IdModel {

    private static final long serialVersionUID = -300189841334506668L;

    public static final String MODEL_MODEL = "demo.DemoDepartment";

    @Field(displayName = "部门名称")
    private String name;

    @Field(displayName = "管理员")
    private DemoEmployee manager;

}

员工

/**
 * 演示员工
 *
 * @author Adamancy Zhang at 15:17 on 2024-03-24
 */
@Model.model(DemoEmployee.MODEL_MODEL)
@Model.Advanced(unique = {"bindingUserId"})
@Model(displayName = "演示员工", labelFields = "name")
public class DemoEmployee extends IdModel {

    private static final long serialVersionUID = -6237083162460091500L;

    public static final String MODEL_MODEL = "demo.DemoEmployee";

    @Field(displayName = "员工名称")
    private String name;

    @Field.Relation(relationFields = {"bindingUserId"}, referenceFields = {"id"})
    @Field(displayName = "绑定用户")
    private PamirsUser bindingUser;

    @Field(displayName = "绑定用户ID")
    private Long bindingUserId;

}

我们要求当前登录用户仅能查看其作为管理员的所在部门,因此,我们需要使用managerId == ${currentEmployeeId}这一过滤条件,在权限中进行配置并使其生效。

此处忽略数据准备过程,仅展示关键页面的配置及最终效果。

8.2 权限项配置

从应用中切换至权限模块,并选择权限项列表,创建一个数据权限项,并按照下图内容进行配置。

权限项配置

8.3 角色权限配置

选择角色列表,并选择角色表格中指定角色的权限配置按钮,进入权限配置页面,并按照下图内容进行配置。

PS:这里省略了动作权限相关配置,配置的权限应保证该角色可以正确进入演示部门页面查看效果。

角色权限配置

8.4 为用户绑定指定角色(如已绑定可忽略该步骤)

从应用中切换至用户中心模块,选择指定用户,绑定指定角色。

8.5 在演示部门页面查看权限配置效果

未配置权限页面效果

未配置权限页面效果

权限配置后页面效果

权限配置后页面效果

本文来自投稿,不代表Oinone社区立场,如若转载,请注明出处:https://doc.oinone.top/backend/6393.html

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    代码示例 示例仅供参考 点击下载代码示例 业务场景 准备工作:两个模型,物料(Material)和物料类别(MaterialCategory)。目标:在一个Excel模板中同时导入和导出两个模型的数据。 Material模型 @Model.model(Material.MODEL_MODEL) @Model.Advanced(unique = {"code"}) @Model(displayName = "物料", labelFields = {"name"}) public class Material extends IdModel { private static final long serialVersionUID = -2594216864389636135L; public static final String MODEL_MODEL = "maas.Material"; @Field.String @Field(displayName = "物料编码", required = true) private String code; @Field.String @Field(displayName = "物料名称", required = true) private String name; } MaterialCategory模型 @Model.model(MaterialCategory.MODEL_MODEL) @Model.Advanced(unique = {"code"}) @Model(displayName = "物料类别", labelFields = {"name"}) public class MaterialCategory extends IdModel { private static final long serialVersionUID = 6300896634558908349L; public static final String MODEL_MODEL = "maas.MaterialCategory"; @Field.String @Field(displayName = "类别编码", required = true) private String code; @Field.String @Field(displayName = "类别名称", required = true) private String name; } 模板定义 MaterialTemplate @Component public class MaterialTemplate implements ExcelTemplateInit { public static final String TEMPLATE_NAME = "materialTemplate"; @Override public List<ExcelWorkbookDefinition> generator() { WorkbookDefinitionBuilder builder = WorkbookDefinitionBuilder.newInstance(Material.MODEL_MODEL, TEMPLATE_NAME) .setDisplayName("物料和物料类别") .setEachImport(Boolean.FALSE);//设置importData的入参为 (ExcelImportContext importContext, List<MaterialCategory> data),如入参是单个对象,请删除setEachImport(Boolean.FALSE) createMaterialSheet(builder); createMaterialCategorySheet(builder); return Collections.singletonList(builder.build()); } private static void createMaterialSheet(WorkbookDefinitionBuilder builder) { builder.createSheet().setName("物料") .createBlock(Material.MODEL_MODEL, ExcelAnalysisTypeEnum.FIXED_HEADER, ExcelDirectionEnum.HORIZONTAL, "A1:B2") .createHeader().setStyleBuilder(ExcelHelper.createDefaultStyle()).setIsConfig(Boolean.TRUE) .createCell().setField("code").setAutoSizeColumn(Boolean.TRUE).and() .createCell().setField("name").setAutoSizeColumn(Boolean.TRUE).and() .and() .createHeader().setStyleBuilder(ExcelHelper.createDefaultStyle(v -> v.setBold(Boolean.TRUE)).setHorizontalAlignment(ExcelHorizontalAlignmentEnum.CENTER)) .createCell().setValue("物料编码").and() .createCell().setValue("物料名称"); } private static void createMaterialCategorySheet(WorkbookDefinitionBuilder builder) { builder.createSheet().setName("物料类别") .createBlock(MaterialCategory.MODEL_MODEL, ExcelAnalysisTypeEnum.FIXED_HEADER, ExcelDirectionEnum.HORIZONTAL, "A1:B2") .createHeader().setStyleBuilder(ExcelHelper.createDefaultStyle()).setIsConfig(Boolean.TRUE) .createCell().setField("code").setAutoSizeColumn(Boolean.TRUE).and()…

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