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https://gitee.com/best_handsome/mybatis-plus-join/issues/I3RS8S

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admin 2021-05-18 12:43:41 +08:00
parent 6360390229
commit 133f781d2d
1 changed files with 9 additions and 1 deletions
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10
src/main/java/com/github/yulichang/wrapper/MPJAbstractLambdaWrapper.java
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@ -1,6 +1,7 @@
package com.github.yulichang.wrapper; package com.github.yulichang.wrapper;
import com.baomidou.mybatisplus.core.toolkit.StringPool; import com.baomidou.mybatisplus.core.toolkit.StringPool;
import com.baomidou.mybatisplus.core.toolkit.support.ColumnCache;
import com.baomidou.mybatisplus.core.toolkit.support.SFunction; import com.baomidou.mybatisplus.core.toolkit.support.SFunction;
import com.github.yulichang.toolkit.Constant; import com.github.yulichang.toolkit.Constant;
import com.github.yulichang.toolkit.LambdaUtils; import com.github.yulichang.toolkit.LambdaUtils;
@ -24,6 +25,9 @@ public abstract class MPJAbstractLambdaWrapper<T, Children extends MPJAbstractLa
*/ */
protected Map<Class<?>, Integer> subTable = new HashMap<>(); protected Map<Class<?>, Integer> subTable = new HashMap<>();
private Map<String, ColumnCache> columnMap = null;
private boolean initColumnMap = false;
@Override @Override
protected <X> String columnToString(X column) { protected <X> String columnToString(X column) {
return columnToString((SFunction<?, ?>) column, true); return columnToString((SFunction<?, ?>) column, true);
@ -35,8 +39,12 @@ public abstract class MPJAbstractLambdaWrapper<T, Children extends MPJAbstractLa
} }
protected String columnToString(SFunction<?, ?> column, boolean onlyColumn) { protected String columnToString(SFunction<?, ?> column, boolean onlyColumn) {
if (!initColumnMap) {
columnMap = com.baomidou.mybatisplus.core.toolkit.LambdaUtils.getColumnMap(LambdaUtils.getEntityClass(column));
initColumnMap = true;
}
return Constant.TABLE_ALIAS + getDefault(subTable.get(LambdaUtils.getEntityClass(column))) + StringPool.DOT + return Constant.TABLE_ALIAS + getDefault(subTable.get(LambdaUtils.getEntityClass(column))) + StringPool.DOT +
LambdaUtils.getColumn(column); columnMap.get(LambdaUtils.getName(column)).getColumn();
} }
protected String getDefault(Integer i) { protected String getDefault(Integer i) {