移动判断

web/src/main/java/com/ibeetl/jlw/service/StudentClientLinkService.java

@@ -1,6 +1,7 @@
 package com.ibeetl.jlw.service;
 
 import cn.hutool.core.collection.CollectionUtil;
+import cn.hutool.core.lang.Assert;
 import cn.hutool.core.util.NumberUtil;
 import cn.hutool.core.util.RandomUtil;
 import cn.jlw.util.ToolUtils;
@@ -191,108 +192,109 @@ public class StudentClientLinkService extends CoreBaseService<StudentClientLink>
      */
     public void move(@NotNull(message = "ID不能为空！") Long id, @NotNull(message = "移动类型不能为空！") MoveEnum moveType) {
         List<StudentClientLink> links = studentClientLinkDao.getByIds(id.toString());
-        if (CollectionUtil.isNotEmpty(links)) {
-            StudentClientLink studentClientLink = links.get(0);
-
-            switch (moveType) {
-
-                case MOVE_TOP: {
-                    List<StudentClientLink> result = studentClientLinkDao.createLambdaQuery()
-                            .andEq(StudentClientLink::getStudentClientLinkType, studentClientLink.getStudentClientLinkType())
-                            .andEq(StudentClientLink::getStudentClientLinkStatus, 1)
-                            .andNotEq(StudentClientLink::getStudentClientLinkId, id)
-                            .asc(StudentClientLink::getStudentClientLinkOrder)
-                            .limit(1, 1)
-                            .select(StudentClientLink::getStudentClientLinkOrder);
-
-                    if (CollectionUtil.isNotEmpty(result)) {
-                        StudentClientLink minOrderClientLink = result.get(0);
-                        // 最小的排序值
-                        BigDecimal minLinkOrder = minOrderClientLink.getStudentClientLinkOrder();
-                        // 置顶就现有的最小值减1。但是需要确保结果小于0
-                        BigDecimal calcedOrder = BigDecimal.valueOf(NumberUtil.sub(min(minLinkOrder.floatValue(), 0), 1));
-
-                        // 改变排序记录值
-                        StudentClientLink updatePO = new StudentClientLink();
-                        updatePO.setStudentClientLinkId(studentClientLink.getStudentClientLinkId());
-                        updatePO.setStudentClientLinkOrder(calcedOrder);
-                        updateTemplate(updatePO);
-                    }
-                } break;
-
-
-                case MOVE_LEFT: {
-                    List<StudentClientLink> result = studentClientLinkDao.createLambdaQuery()
-                            .andEq(StudentClientLink::getStudentClientLinkType, studentClientLink.getStudentClientLinkType())
-                            .andLess(StudentClientLink::getStudentClientLinkOrder, studentClientLink.getStudentClientLinkOrder())
-                            .andEq(StudentClientLink::getStudentClientLinkStatus, 1)
-                            .andNotEq(StudentClientLink::getStudentClientLinkId, id)
-                            .desc(StudentClientLink::getStudentClientLinkOrder)
-                            .limit(1, 2)
-                            .select(StudentClientLink::getStudentClientLinkOrder);
-
-                    if (CollectionUtil.isNotEmpty(result)) {
-                        // 找到应该安插的位置
-                        BigDecimal LinkOrder0 = result.get(0).getStudentClientLinkOrder();
-                        BigDecimal LinkOrder1 = LinkOrder0.subtract(BigDecimal.ONE);
-                        if (result.size() == 2) {
-                            LinkOrder1 = result.get(1).getStudentClientLinkOrder();
-                        }
-
-                        BigDecimal min = NumberUtil.min(LinkOrder0, LinkOrder1);
-                        BigDecimal max = NumberUtil.max(LinkOrder0, LinkOrder1);
-
-                        // 左移位后的值
-                        double calcedOrder = RandomUtil.randomDouble(min.doubleValue(), max.doubleValue(), 6, RoundingMode.HALF_UP);
-
-                        // 改变排序记录值
-                        StudentClientLink updatePO = new StudentClientLink();
-                        updatePO.setStudentClientLinkId(studentClientLink.getStudentClientLinkId());
-                        updatePO.setStudentClientLinkOrder(BigDecimal.valueOf(calcedOrder));
-                        updateTemplate(updatePO);
 
+        Assert.notEmpty(links, "未查询到要移动的元素！");
+
+        StudentClientLink studentClientLink = links.get(0);
+
+        switch (moveType) {
+
+            case MOVE_TOP: {
+                List<StudentClientLink> result = studentClientLinkDao.createLambdaQuery()
+                        .andEq(StudentClientLink::getStudentClientLinkType, studentClientLink.getStudentClientLinkType())
+                        .andEq(StudentClientLink::getStudentClientLinkStatus, 1)
+                        .andNotEq(StudentClientLink::getStudentClientLinkId, id)
+                        .asc(StudentClientLink::getStudentClientLinkOrder)
+                        .limit(1, 1)
+                        .select(StudentClientLink::getStudentClientLinkOrder);
+
+                if (CollectionUtil.isNotEmpty(result)) {
+                    StudentClientLink minOrderClientLink = result.get(0);
+                    // 最小的排序值
+                    BigDecimal minLinkOrder = minOrderClientLink.getStudentClientLinkOrder();
+                    // 置顶就现有的最小值减1。但是需要确保结果小于0
+                    BigDecimal calcedOrder = BigDecimal.valueOf(NumberUtil.sub(min(minLinkOrder.floatValue(), 0), 1));
+
+                    // 改变排序记录值
+                    StudentClientLink updatePO = new StudentClientLink();
+                    updatePO.setStudentClientLinkId(studentClientLink.getStudentClientLinkId());
+                    updatePO.setStudentClientLinkOrder(calcedOrder);
+                    updateTemplate(updatePO);
+                }
+            } break;
+
+
+            case MOVE_LEFT: {
+                List<StudentClientLink> result = studentClientLinkDao.createLambdaQuery()
+                        .andEq(StudentClientLink::getStudentClientLinkType, studentClientLink.getStudentClientLinkType())
+                        .andLess(StudentClientLink::getStudentClientLinkOrder, studentClientLink.getStudentClientLinkOrder())
+                        .andEq(StudentClientLink::getStudentClientLinkStatus, 1)
+                        .andNotEq(StudentClientLink::getStudentClientLinkId, id)
+                        .desc(StudentClientLink::getStudentClientLinkOrder)
+                        .limit(1, 2)
+                        .select(StudentClientLink::getStudentClientLinkOrder);
+
+                if (CollectionUtil.isNotEmpty(result)) {
+                    // 找到应该安插的位置
+                    BigDecimal LinkOrder0 = result.get(0).getStudentClientLinkOrder();
+                    BigDecimal LinkOrder1 = LinkOrder0.subtract(BigDecimal.ONE);
+                    if (result.size() == 2) {
+                        LinkOrder1 = result.get(1).getStudentClientLinkOrder();
                     }
-                } break;
+
-
+                    BigDecimal min = NumberUtil.min(LinkOrder0, LinkOrder1);
-
+                    BigDecimal max = NumberUtil.max(LinkOrder0, LinkOrder1);
-                case MOVE_RIGHT: {
+
-                    List<StudentClientLink> result = studentClientLinkDao.createLambdaQuery()
+                    // 左移位后的值
-                            .andEq(StudentClientLink::getStudentClientLinkType, studentClientLink.getStudentClientLinkType())
+                    double calcedOrder = RandomUtil.randomDouble(min.doubleValue(), max.doubleValue(), 6, RoundingMode.HALF_UP);
-                            .andGreat(StudentClientLink::getStudentClientLinkOrder, studentClientLink.getStudentClientLinkOrder())
+
-                            .andEq(StudentClientLink::getStudentClientLinkStatus, 1)
+                    // 改变排序记录值
-                            .andNotEq(StudentClientLink::getStudentClientLinkId, id)
+                    StudentClientLink updatePO = new StudentClientLink();
-                            .asc(StudentClientLink::getStudentClientLinkOrder)
+                    updatePO.setStudentClientLinkId(studentClientLink.getStudentClientLinkId());
-                            .limit(1, 2)
+                    updatePO.setStudentClientLinkOrder(BigDecimal.valueOf(calcedOrder));
-                            .select(StudentClientLink::getStudentClientLinkOrder);
+                    updateTemplate(updatePO);
-
+
-                    if (CollectionUtil.isNotEmpty(result)) {
+                }
-                        // 找到应该安插的位置
+            } break;
-                        BigDecimal LinkOrder0 = result.get(0).getStudentClientLinkOrder();
+
-                        BigDecimal LinkOrder1 = LinkOrder0.add(BigDecimal.ONE);
+
-                        if (result.size() == 2) {
+            case MOVE_RIGHT: {
-                            LinkOrder1 = result.get(1).getStudentClientLinkOrder();
+                List<StudentClientLink> result = studentClientLinkDao.createLambdaQuery()
-                        }
+                        .andEq(StudentClientLink::getStudentClientLinkType, studentClientLink.getStudentClientLinkType())
-
+                        .andGreat(StudentClientLink::getStudentClientLinkOrder, studentClientLink.getStudentClientLinkOrder())
-                        BigDecimal min = NumberUtil.min(LinkOrder0, LinkOrder1);
+                        .andEq(StudentClientLink::getStudentClientLinkStatus, 1)
-                        BigDecimal max = NumberUtil.max(LinkOrder0, LinkOrder1);
+                        .andNotEq(StudentClientLink::getStudentClientLinkId, id)
-
+                        .asc(StudentClientLink::getStudentClientLinkOrder)
-                        // 右移位后的值
+                        .limit(1, 2)
-                        double calcedOrder = RandomUtil.randomDouble(min.doubleValue(), max.doubleValue(), 6, RoundingMode.HALF_UP);
+                        .select(StudentClientLink::getStudentClientLinkOrder);
-
+
-                        // 改变排序记录值
+                if (CollectionUtil.isNotEmpty(result)) {
-                        StudentClientLink updatePO = new StudentClientLink();
+                    // 找到应该安插的位置
-                        updatePO.setStudentClientLinkId(studentClientLink.getStudentClientLinkId());
+                    BigDecimal LinkOrder0 = result.get(0).getStudentClientLinkOrder();
-                        updatePO.setStudentClientLinkOrder(BigDecimal.valueOf(calcedOrder));
+                    BigDecimal LinkOrder1 = LinkOrder0.add(BigDecimal.ONE);
-                        updateTemplate(updatePO);
+                    if (result.size() == 2) {
+                        LinkOrder1 = result.get(1).getStudentClientLinkOrder();
                     }
-                } break;
 
+                    BigDecimal min = NumberUtil.min(LinkOrder0, LinkOrder1);
+                    BigDecimal max = NumberUtil.max(LinkOrder0, LinkOrder1);
 
-                default:
+                    // 右移位后的值
-                    log.error("不支持的移动类型！");
+                    double calcedOrder = RandomUtil.randomDouble(min.doubleValue(), max.doubleValue(), 6, RoundingMode.HALF_UP);
-                    break;
-            }
 
+                    // 改变排序记录值
+                    StudentClientLink updatePO = new StudentClientLink();
+                    updatePO.setStudentClientLinkId(studentClientLink.getStudentClientLinkId());
+                    updatePO.setStudentClientLinkOrder(BigDecimal.valueOf(calcedOrder));
+                    updateTemplate(updatePO);
+                }
+            } break;
+
+
+            default:
+                log.error("不支持的移动类型！");
+                break;
         }
+
     }
 }

web/src/main/java/com/ibeetl/jlw/web/StudentClientLinkController.java

@@ -266,6 +266,16 @@ public class StudentClientLinkController{
         return JsonResult.success();
     }
 
+    /**
+     * 功能描述: <br>
+     * 排序 移动
+     *
+     * @param id            ID
+     * @param moveType      移动类型
+     * @return {@link JsonResult}
+     * @Author: 87966
+     * @Date: 2023/1/9 16:17
+     */
     @GetMapping(MODEL + "/move.json")
     @ResponseBody
     public JsonResult move(Long id, MoveEnum moveType) {