后管-wbs元素库-元素调整（未完成）

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

@@ -77,4 +77,11 @@ public interface WbsFormElementMapper extends BaseMapper<WbsFormElement> {
      * @return
      */
     Integer selectFiledDataMaxLength(@Param("tableName") String initTableName,@Param("key") String eKey);
+
+    /**
+     * 统计当前表所有字段长度
+     * @param initTableName
+     * @return
+     */
+    int selectSumColumnLength(@Param("database") String database,@Param("tableName") String initTableName);
 }

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

@@ -172,5 +172,15 @@
     <select id="selectFiledDataMaxLength" resultType="java.lang.Integer">
         select MAX(CHAR_LENGTH(${key})) from ${tableName}
     </select>
+    <select id="selectSumColumnLength" resultType="java.lang.Integer">
+        SELECT
+            SUM( CHARACTER_MAXIMUM_LENGTH )
+        FROM
+            information_schema.COLUMNS
+        WHERE
+            TABLE_SCHEMA = #{database}
+            AND TABLE_NAME = #{tableName}
+            AND DATA_TYPE = 'varchar'
+    </select>
 
 </mapper>

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

@@ -62,6 +62,8 @@ public class WbsFormElementServiceImpl extends BaseServiceImpl<WbsFormElementMap
     public static final Integer DEFAULT_ELEMENT_LENGTH_DATE = 50;
     //实体表字段默认长度
     private static final String ELEMENT_LENGTH_ENTITY = "200";
+    //数据库动态表总字段最大长度
+    private static final Integer MYSQL_MAX_COLUMN_LENGTH = 17453;
 
     @Override
     public IPage<WbsFormElementVO> selectWbsFormElementPage(IPage<WbsFormElementVO> page, WbsFormElementVO wbsFormElement) {
@@ -141,23 +143,29 @@ public class WbsFormElementServiceImpl extends BaseServiceImpl<WbsFormElementMap
 
     @Override
     public WbsFormElement saveAndSyn(WbsFormElement wbsFormElement, String tableName) {
-        try {
 
-            String isExitSql = "select * from information_schema.TABLES where TABLE_NAME='" + tableName + "'";
-            List<Map<String, Object>> tabList = jdbcTemplate.queryForList(isExitSql);
-            if (tabList.size() <= 0) {
-                throw new ServiceException("未获取到对应的实体表名称initTableName");
-            }
+        String isExitSql = "select * from information_schema.TABLES where TABLE_NAME='" + tableName + "'";
+        List<Map<String, Object>> tabList = jdbcTemplate.queryForList(isExitSql);
+        if (tabList.size() <= 0) {
+            throw new ServiceException("未获取到对应的实体表名称initTableName");
+        }
 
 
-            //获取实体表主库信息
-            TableInfo tableInfo = tableInfoMapper.selectById(wbsFormElement.getFId());
-            if (tableInfo == null) {
-                throw new ServiceException("没有找到主库信息,确认fid是否正确");
-            } else {
-                tableName = tableInfo.getTabEnName();
-            }
+        //获取实体表主库信息
+        TableInfo tableInfo = tableInfoMapper.selectById(wbsFormElement.getFId());
+        if (tableInfo == null) {
+            throw new ServiceException("没有找到主库信息,确认fid是否正确");
+        } else {
+            tableName = tableInfo.getTabEnName();
+        }
+
 
+        //当前表总字段长度
+        int sumLength = baseMapper.selectSumColumnLength(jdbcTemplate.queryForObject("SELECT DATABASE()",String.class), tableName);
+        if (sumLength + wbsFormElement.getELength() > MYSQL_MAX_COLUMN_LENGTH) {
+            throw new ServiceException("无法添加字段，可用长度：" + (MYSQL_MAX_COLUMN_LENGTH - sumLength));
+        }
+        try {
             // 删除 元素和实体表不匹配的字段
             //baseMapper.deleteElementByfId2();
 
@@ -308,6 +316,18 @@ public class WbsFormElementServiceImpl extends BaseServiceImpl<WbsFormElementMap
         //字段级字段长度缓存
         Map<String, Integer> lengthMap = new HashMap<>();
 
+        //当前设置的字段总长度
+        Integer nowTotalLength = 0;
+        for (WbsFormElement wbsFormElement : wbsFormElementList) {
+            nowTotalLength += wbsFormElement.getELength();
+        }
+        //当前表总字段长度
+        int sumLength = baseMapper.selectSumColumnLength(jdbcTemplate.queryForObject("SELECT DATABASE()",String.class), initTableName);
+        if (nowTotalLength > MYSQL_MAX_COLUMN_LENGTH) {
+            //修改元素字段长度
+            throw new ServiceException("无法添加字段，可用长度：" + (MYSQL_MAX_COLUMN_LENGTH - sumLength));
+        }
+
         //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) {
@@ -365,7 +385,7 @@ public class WbsFormElementServiceImpl extends BaseServiceImpl<WbsFormElementMap
 
                         //字段配置的长度
                         Integer filedLength = lengthMap.get(eKey);
-                        if(filedLength == null){
+                        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
@@ -965,4 +985,11 @@ public class WbsFormElementServiceImpl extends BaseServiceImpl<WbsFormElementMap
         }
     }
 
+
+    /**
+     * 修改当前表所有字段的长度
+     *  1、字段数量超过80 表数据超过500条 把数据长度为0的旧字段长度改为50
+     *      超过：新字段的默认长度改为150，并且
+     */
+
 }