后管-WBS元素库-编辑元素字段保存的时候调整字段长度根据数据最长长度进行处理

blade-service/blade-manager/src/main/java/org/springblade/manager/mapper/WbsFormElementMapper.java

@@ -12,6 +12,7 @@ import org.springblade.manager.entity.WbsTree;
 import org.springblade.manager.vo.WbsFormElementVO;
 
 import java.util.List;
+import java.util.Map;
 
 public interface WbsFormElementMapper extends BaseMapper<WbsFormElement> {
 
@@ -61,4 +62,19 @@ public interface WbsFormElementMapper extends BaseMapper<WbsFormElement> {
 
     //查询 元素与实体表字段不匹配的字段
     List<WbsFormElementDTO2> selColumnsByTabName(String parentId);
+
+    /**
+     * 查询表字段长度
+     * @param initTableName
+     * @return
+     */
+    List<Map<String, Object>> selectFiledLength(@Param("initTableName") String initTableName);
+
+    /**
+     * 查询指定字段最长数据的长度
+     * @param initTableName
+     * @param eKey
+     * @return
+     */
+    Integer selectFiledDataMaxLength(@Param("tableName") String initTableName,@Param("key") String eKey);
 }

blade-service/blade-manager/src/main/java/org/springblade/manager/mapper/WbsFormElementMapper.xml

@@ -166,5 +166,11 @@
     <select id="selColumnsByTabName" resultType="java.lang.String">
         SELECT data_type FROM information_schema.columns WHERE table_name=#{initTableName} AND column_name = #{eKey}
     </select>
+    <select id="selectFiledLength" resultType="java.util.Map">
+        select column_name `key`,character_octet_length length from INFORMATION_SCHEMA.COLUMNS  where table_name = #{initTableName}
+    </select>
+    <select id="selectFiledDataMaxLength" resultType="java.lang.Integer">
+        select MAX(LENGTH(${key})) from ${tableName}
+    </select>
 
 </mapper>

blade-service/blade-manager/src/main/java/org/springblade/manager/service/impl/WbsFormElementServiceImpl.java

@@ -36,6 +36,7 @@ import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
 import java.io.IOException;
+import java.math.BigInteger;
 import java.text.ParseException;
 import java.util.*;
 import java.util.stream.Collectors;
@@ -282,6 +283,7 @@ public class WbsFormElementServiceImpl extends BaseServiceImpl<WbsFormElementMap
     }
 
     @Override
+    @Transactional(rollbackFor = Exception.class)
     public R updateAndSyn(List<WbsFormElement> wbsFormElementList, String initTableName) {
         if (StringUtils.isEmpty(initTableName)) {
             return R.fail("未获取到initTableName对应实体表名称，操作失败");
@@ -303,6 +305,19 @@ public class WbsFormElementServiceImpl extends BaseServiceImpl<WbsFormElementMap
         wbsFormElementList.forEach(obj -> obj.setStatus(1));
         boolean b = this.updateBatchById(wbsFormElementList);
 
+        //字段级字段长度缓存
+        Map<String, Integer> lengthMap = new HashMap<>();
+
+        //查询当前表的所有字段级字段长度
+        List<Map<String, Object>> filedLengths = baseMapper.selectFiledLength(initTableName);
+        for (Map<String, Object> filedLength : filedLengths) {
+            BigInteger length = (BigInteger) filedLength.get("length");
+            if (length == null) {
+                continue;
+            }
+            lengthMap.put(filedLength.get("key").toString(), length.intValue());
+        }
+
         //修改实体表信息
         if (b) {
             String fId = "";
@@ -321,16 +336,16 @@ public class WbsFormElementServiceImpl extends BaseServiceImpl<WbsFormElementMap
 
                 if (eType.equals("bigint") && (eLength > 255 || eLength < 10)) {
                     this.updateBatchById(beforeUpdateWbsFormElements);
-                    return R.fail(eKey+"元素名称:"+eName+"请输入正确长度,该类型范围为10-255之间");
+                    return R.fail(eKey + "元素名称:" + eName + "请输入正确长度,该类型范围为10-255之间");
                 } else if (eType.equals("varchar") && (eLength > 3000 || eLength < 10)) {
                     this.updateBatchById(beforeUpdateWbsFormElements);
-                    return  R.fail(eKey+"元素名称:"+eName+"请输入正确长度,该类型范围为10-3000之间");
+                    return R.fail(eKey + "元素名称:" + eName + "请输入正确长度,该类型范围为10-3000之间");
                 } else if (eType.equals("decimal") && (eLength > 65 || eLength < 10)) {
                     this.updateBatchById(beforeUpdateWbsFormElements);
-                    return  R.fail(eKey+"元素名称:"+eName+"请输入正确长度,该类型范围为10-65之间");
+                    return R.fail(eKey + "元素名称:" + eName + "请输入正确长度,该类型范围为10-65之间");
                 } else if (eType.equals("datetime") && (eLength > 400 || eLength < 0)) {
                     this.updateBatchById(beforeUpdateWbsFormElements);
-                    return  R.fail(eKey+"元素名称:"+eName+"请输入正确长度,该类型范围为0-400之间");
+                    return R.fail(eKey + "元素名称:" + eName + "请输入正确长度,该类型范围为0-400之间");
                 }
 
                 //设置默认长度
@@ -346,7 +361,39 @@ public class WbsFormElementServiceImpl extends BaseServiceImpl<WbsFormElementMap
                 int row1 = wbsTreeMapper.isThereAField(initTableName, eKey);
                 if (row1 > 0) {
                     try {
-                        baseMapper.updateFiledType(initTableName, eKey, "varchar", eLength);
+                        //1、查询当前表当前字段
+
+                        //字段配置的长度
+                        Integer filedLength = lengthMap.get(eKey);
+                        if(filedLength == null){
+                            throw new RuntimeException("字段不存在");
+                        }
+                        //获取当前字段数据的最长数据长度
+                        Integer maxLength = baseMapper.selectFiledDataMaxLength(initTableName, eKey);
+                        //初始长度
+                        int initLength = 250;
+                        //当前字段数据长度为null
+                        if (maxLength == null) {
+                            //设置初始长度
+                            baseMapper.updateFiledType(initTableName, eKey, "varchar", initLength);
+                            wbsFormElement.setELength(initLength);
+                            baseMapper.updateById(wbsFormElement);
+                        } else {
+                            //动态扩容 每次根据最大数据长度扩容100
+                            int newLength = maxLength + 100;
+                            //如果字段的长度与扩容后的值一致则不去修改字段
+                            if (filedLength == newLength) {
+                                continue;
+                            }
+                            //如果数据的最大长度 +100 都大于字段配置的长度  则重新设置字段的长度
+                            if (filedLength >= newLength) {
+                                baseMapper.updateFiledType(initTableName, eKey, "varchar", newLength);
+                                wbsFormElement.setELength(newLength);
+                                baseMapper.updateById(wbsFormElement);
+                                continue;
+                            }
+                            baseMapper.updateFiledType(initTableName, eKey, "varchar", eLength);
+                        }
                     } catch (Exception e) {
                         this.updateBatchById(beforeUpdateWbsFormElements);
                         throw new RuntimeException("字段长度范围超出总最大限制,请尝试缩小当前字段长度或其他字段长度");