题库列表二次校验

ccic-exam/src/main/java/com/ccic/safeliab/dao/QuestionMapper.java

@@ -72,4 +72,12 @@ public interface QuestionMapper extends BaseMapper<QuestionCategories> {
      */
     List<PageQuestionCategoriesVO> getListByPaperId(@Param("paperId") Long id);
 
+    /**
+     * 查询试题是否被引用
+     *
+     * @param ids 试题ID
+     * @return 查询结果
+     */
+    int getQuestiongInExamSize(@Param("ids") List<Long> ids);
+
 }

ccic-exam/src/main/java/com/ccic/safeliab/service/QuestionService.java

@@ -28,7 +28,7 @@ public interface QuestionService extends BaseService<QuestionCategories> {
      * @param ids 试题ID
      * @return 删除结果
      */
-    boolean delQuestion(List<Long> ids);
+    Map<String, Object> delQuestion(List<Long> ids);
 
     /**
      * 添加试题

ccic-exam/src/main/java/com/ccic/safeliab/service/QuestionServiceImpl.java

@@ -41,8 +41,28 @@ public class QuestionServiceImpl extends BaseServiceImpl<QuestionMapper, Questio
     }
 
     @Override
-    public boolean delQuestion(List<Long> ids) {
+    public Map<String, Object> delQuestion(List<Long> ids) {
-        return deleteLogic(ids);
+        Map<String, Object> map = new HashMap<>();
+        int size = baseMapper.getQuestiongInExamSize(ids);
+        if( size > 0 )
+        {
+            map.put("success", "error");
+            if (ids.size() > 1){
+                map.put("message", "选中的试题中有" + size + "个已被引用，需删除引用的考试后方可删除");
+            }else{
+                map.put("message", "该试题已被引用，需删除引用的考试后方可删除");
+            }
+            return map;
+        }
+        boolean deleteResult = deleteLogic(ids);
+        if (deleteResult) {
+            map.put("success", "true");
+            map.put("message", "试题删除成功");
+        } else {
+            map.put("success", "false");
+            map.put("message", "试题删除失败");
+        }
+        return map;
     }
 
     @Override

ccic-exam/src/main/java/com/ccic/safeliab/web/QuestionController.java

@@ -41,12 +41,8 @@ public class QuestionController {
      */
     @PostMapping("/delQuestion")
     public R delQuestion(@RequestBody List<Long> ids) {
-        boolean flag = questionService.delQuestion(ids);
+        Map<String, Object> map = questionService.delQuestion(ids);
-        if (flag) {
+        return R.ok().data(map);
-            return R.ok();
-        } else {
-            return R.error();
-        }
     }
 
     /**

ccic-exam/src/main/resources/mappers/QuestionMapper.xml

@@ -45,7 +45,7 @@
         FROM
         ex_question_categories
         <where>
-            is_deleted = '0'
+            is_deleted = 0
             <if test="industryId!= null and industryId!= ''">
                 AND industry_id = #{industryId}
             </if>
@@ -68,7 +68,7 @@
         FROM
         ex_question_categories
         <where>
-            is_deleted = '0'
+            is_deleted = 0
             <if test="industryId!= null and industryId!= ''">
                 AND industry_id = #{industryId}
             </if>
@@ -105,7 +105,7 @@
         FROM
         ex_question_categories
         <where>
-            is_deleted = '0'
+            is_deleted = 0
             <if test="id!= null and id!= ''">
                 AND id = #{id}
             </if>
@@ -124,13 +124,33 @@
         a.status,
         b.question_number
         FROM ex_question_categories a
-        LEFT JOIN ex_paper_questions b ON b.question_id = a.id AND b.is_deleted = '0'
+        LEFT JOIN ex_paper_questions b ON b.question_id = a.id AND b.is_deleted = 0
         <where>
-            a.is_deleted = '0'
+            a.is_deleted = 0
             <if test="paperId!= null and paperId!= ''">
                 AND b.paper_id = #{paperId}
             </if>
         </where>
         ORDER BY b.question_number asc
     </select>
+    <select id="getQuestiongInExamSize" resultType="int">
+        SELECT
+        count(DISTINCT qc.id)
+        FROM
+        ex_question_categories qc
+        INNER JOIN ex_paper_questions pq ON pq.question_id = qc.id
+        AND pq.is_deleted = 0
+        INNER JOIN ex_exam_papers ep ON ep.id = pq.paper_id
+        AND ep.is_deleted = 0
+        <where>
+            qc.is_deleted = 0
+            <if test="ids!= null and ids.size() > 0">
+                AND qc.id IN
+                <foreach item="item" index="index" collection="ids"
+                         open="(" separator="," close=")">
+                    #{item}
+                </foreach>
+            </if>
+        </where>
+    </select>
 </mapper>