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feat 新建LambdaQueryWrapperX，改成使用lambda的方式选择字段

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zefeng.zeng
2022-01-21 14:32:52 +08:00
parent 70fe3d31bd
commit 43ae3c8124
16 changed files with 295 additions and 125 deletions
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22
yudao-framework/yudao-spring-boot-starter-mybatis/src/main/java/cn/iocoder/yudao/framework/mybatis/core/mapper/BaseMapperX.java
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@ -4,9 +4,11 @@ import cn.iocoder.yudao.framework.common.pojo.PageParam;
import cn.iocoder.yudao.framework.common.pojo.PageResult;
import cn.iocoder.yudao.framework.mybatis.core.util.MyBatisUtils;
import com.baomidou.mybatisplus.core.conditions.Wrapper;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.core.toolkit.support.SFunction;
import org.apache.ibatis.annotations.Param;
import java.util.Collection;
@ -29,14 +31,26 @@ public interface BaseMapperX<T> extends BaseMapper<T> {
return selectOne(new QueryWrapper<T>().eq(field, value));
}
default T selectOne(SFunction<T, ?> field, Object value) {
return selectOne(new LambdaQueryWrapper<T>().eq(field, value));
}
default T selectOne(String field1, Object value1, String field2, Object value2) {
return selectOne(new QueryWrapper<T>().eq(field1, value1).eq(field2, value2));
}
default T selectOne(SFunction<T, ?> field1, Object value1, SFunction<T, ?> field2, Object value2) {
return selectOne(new LambdaQueryWrapper<T>().eq(field1, value1).eq(field2, value2));
}
default Integer selectCount(String field, Object value) {
return selectCount(new QueryWrapper<T>().eq(field, value)).intValue();
}
default Integer selectCount(SFunction<T, ?> field, Object value) {
return selectCount(new LambdaQueryWrapper<T>().eq(field, value)).intValue();
}
default List<T> selectList() {
return selectList(new QueryWrapper<>());
}
@ -45,10 +59,18 @@ public interface BaseMapperX<T> extends BaseMapper<T> {
return selectList(new QueryWrapper<T>().eq(field, value));
}
default List<T> selectList(SFunction<T, ?> field, Object value) {
return selectList(new LambdaQueryWrapper<T>().eq(field, value));
}
default List<T> selectList(String field, Collection<?> values) {
return selectList(new QueryWrapper<T>().in(field, values));
}
default List<T> selectList(SFunction<T, ?> field, Collection<?> values) {
return selectList(new LambdaQueryWrapper<T>().in(field, values));
}
default void insertBatch(Collection<T> entities) {
// TODO 芋艿：修改成支持批量的
entities.forEach(this::insert);

129
yudao-framework/yudao-spring-boot-starter-mybatis/src/main/java/cn/iocoder/yudao/framework/mybatis/core/query/LambdaQueryWrapperX.java Normal file
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@ -0,0 +1,129 @@
package cn.iocoder.yudao.framework.mybatis.core.query;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.ArrayUtils;
import com.baomidou.mybatisplus.core.toolkit.CollectionUtils;
import com.baomidou.mybatisplus.core.toolkit.support.SFunction;
import org.springframework.util.StringUtils;
import java.util.Collection;
/**
* 拓展 MyBatis Plus QueryWrapper 类，主要增加如下功能：
*
* 1. 拼接条件的方法，增加 xxxIfPresent 方法，用于判断值不存在的时候，不要拼接到条件中。
*
* @param <T> 数据类型
*/
public class LambdaQueryWrapperX<T> extends LambdaQueryWrapper<T> {
public LambdaQueryWrapperX<T> likeIfPresent(SFunction<T, ?> column, String val) {
if (StringUtils.hasText(val)) {
return (LambdaQueryWrapperX<T>) super.like(column, val);
}
return this;
}
public LambdaQueryWrapperX<T> inIfPresent(SFunction<T, ?> column, Collection<?> values) {
if (!CollectionUtils.isEmpty(values)) {
return (LambdaQueryWrapperX<T>) super.in(column, values);
}
return this;
}
public LambdaQueryWrapperX<T> inIfPresent(SFunction<T, ?> column, Object... values) {
if (!ArrayUtils.isEmpty(values)) {
return (LambdaQueryWrapperX<T>) super.in(column, values);
}
return this;
}
public LambdaQueryWrapperX<T> eqIfPresent(SFunction<T, ?> column, Object val) {
if (val != null) {
return (LambdaQueryWrapperX<T>) super.eq(column, val);
}
return this;
}
public LambdaQueryWrapperX<T> neIfPresent(SFunction<T, ?> column, Object val) {
if (val != null) {
return (LambdaQueryWrapperX<T>) super.ne(column, val);
}
return this;
}
public LambdaQueryWrapperX<T> gtIfPresent(SFunction<T, ?> column, Object val) {
if (val != null) {
return (LambdaQueryWrapperX<T>) super.gt(column, val);
}
return this;
}
public LambdaQueryWrapperX<T> geIfPresent(SFunction<T, ?> column, Object val) {
if (val != null) {
return (LambdaQueryWrapperX<T>) super.ge(column, val);
}
return this;
}
public LambdaQueryWrapperX<T> ltIfPresent(SFunction<T, ?> column, Object val) {
if (val != null) {
return (LambdaQueryWrapperX<T>) super.lt(column, val);
}
return this;
}
public LambdaQueryWrapperX<T> leIfPresent(SFunction<T, ?> column, Object val) {
if (val != null) {
return (LambdaQueryWrapperX<T>) super.le(column, val);
}
return this;
}
public LambdaQueryWrapperX<T> betweenIfPresent(SFunction<T, ?> column, Object val1, Object val2) {
if (val1 != null && val2 != null) {
return (LambdaQueryWrapperX<T>) super.between(column, val1, val2);
}
if (val1 != null) {
return (LambdaQueryWrapperX<T>) ge(column, val1);
}
if (val2 != null) {
return (LambdaQueryWrapperX<T>) le(column, val2);
}
return this;
}
// ========== 重写父类方法，方便链式调用 ==========
@Override
public LambdaQueryWrapperX<T> eq(boolean condition, SFunction<T, ?> column, Object val) {
super.eq(condition, column, val);
return this;
}
@Override
public LambdaQueryWrapperX<T> eq(SFunction<T, ?> column, Object val) {
super.eq(column, val);
return this;
}
@Override
public LambdaQueryWrapperX<T> orderByDesc(SFunction<T, ?> column) {
super.orderByDesc(true, column);
return this;
}
@Override
public LambdaQueryWrapperX<T> last(String lastSql) {
super.last(lastSql);
return this;
}
@Override
public LambdaQueryWrapperX<T> in(SFunction<T, ?> column, Collection<?> coll) {
super.in(column, coll);
return this;
}
}