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feat: add entity insert with raw support

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开源海哥 2023-08-20 11:46:44 +08:00
parent 9e50353f77
commit 1cfdf96c8f
10 changed files with 112 additions and 25 deletions
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53
docs/zh/base/add-delete-update.md
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@ -10,6 +10,59 @@ MyBatis-Flex 内置了一个名为 `BaseMapper` 的接口，它实现了基本
<!--@include: ./parts/base-mapper-insert-methods.md-->
**用 UpdateWrapper 新增数据** <Badge type="tip" text="^ v1.5.8" />
在某些场景下，我们希望在新增数据时，新增数据字段内容是数据库的某个 `函数` 或者 `SQL片段` 生成的内容，而非我们手动设置的内容。
例如，我们希望执行的 SQL 如下：
```sql
INSERT INTO `tb_account`(`user_name`, `birthday`)
VALUES (?, now())
```
> 以上 SQL 中，`birthday` 是由 `now()` 函数生成的内容。
那么，java 代码如下：
```java 9
@Test
public void testInsertWithRaw() {
Account account = new Account();
account.setUserName("michael");
Account newAccount = UpdateWrapper.of(account)
// .setRaw("birthday", "now()")
// .setRaw(ACCOUNT.BIRTHDAY, "now()")
.setRaw(Account::getBirthday, "now()")
.toEntity();
accountMapper.insert(newAccount);
}
```
或者复杂一点的：
```java 7
@Test
public void testInsertWithRaw() {
Account account = new Account();
account.setUserName("michael");
Account newAccount = UpdateWrapper.of(account)
.setRaw(Account::getBirthday, "(select xxx from ...)")
.toEntity();
accountMapper.insert(newAccount);
}
```
其生成的 SQL 如下：
```sql
INSERT INTO `tb_account`(`user_name`, `birthday`)
VALUES (?, (select xxx from ...))
```
> 注意，通过 `UpdateWrapper.setRaw()` 的设置，会覆盖注解 `@Column.onUpdateValue` 配置的内容。

6
mybatis-flex-core/src/main/java/com/mybatisflex/core/dialect/impl/CommonsDialectImpl.java
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@ -523,12 +523,16 @@ public class CommonsDialectImpl implements IDialect {
String[] insertColumns = tableInfo.obtainInsertColumns(entity, ignoreNulls);
Map<String, String> onInsertColumns = tableInfo.getOnInsertColumns();
Map<String, RawValue> rawValueMap = tableInfo.obtainUpdateRawValueMap(entity);
StringJoiner sqlFields = new StringJoiner(DELIMITER);
StringJoiner sqlValues = new StringJoiner(DELIMITER);
for (String insertColumn : insertColumns) {
sqlFields.add(wrap(insertColumn));
if (onInsertColumns != null && onInsertColumns.containsKey(insertColumn)) {
if (rawValueMap.containsKey(insertColumn)) {
sqlValues.add(rawValueMap.get(insertColumn).toSql(this));
} else if (onInsertColumns != null && onInsertColumns.containsKey(insertColumn)) {
sqlValues.add(onInsertColumns.get(insertColumn));
} else {
sqlValues.add(PLACEHOLDER);

2
mybatis-flex-core/src/main/java/com/mybatisflex/core/row/Row.java
View File

@ -32,7 +32,7 @@ import java.util.*;
import java.util.function.BooleanSupplier;
import java.util.function.Predicate;
public class Row extends LinkedHashMap<String, Object> implements UpdateWrapper {
public class Row extends LinkedHashMap<String, Object> implements UpdateWrapper<Row> {
//主键，多个主键用英文逗号隔开
private Set<RowKey> primaryKeys;

5
mybatis-flex-core/src/main/java/com/mybatisflex/core/table/TableInfo.java
View File

@ -414,9 +414,14 @@ public class TableInfo {
MetaObject metaObject = EntityMetaObject.forObject(entity, reflectorFactory);
String[] insertColumns = obtainInsertColumns(entity, ignoreNulls);
Map<String, RawValue> rawValueMap = obtainUpdateRawValueMap(entity);
List<Object> values = new ArrayList<>(insertColumns.length);
for (String insertColumn : insertColumns) {
if (onInsertColumns == null || !onInsertColumns.containsKey(insertColumn)) {
if (rawValueMap.containsKey(insertColumn)) {
continue;
}
Object value = buildColumnSqlArg(metaObject, insertColumn);
if (ignoreNulls && value == null) {
continue;

1
mybatis-flex-core/src/main/java/com/mybatisflex/core/update/ModifyAttrsRecordHandler.java
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@ -34,7 +34,6 @@ class ModifyAttrsRecordHandler implements MethodHandler {
return updates;
}
@Override
public Object invoke(Object self, Method originalMethod, Method proxyMethod, Object[] args) throws Throwable {

31
mybatis-flex-core/src/main/java/com/mybatisflex/core/update/UpdateWrapper.java
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@ -29,7 +29,7 @@ import java.util.Map;
/**
* @author michael
*/
public interface UpdateWrapper extends PropertySetter<UpdateWrapper>, Serializable {
public interface UpdateWrapper<T> extends PropertySetter<UpdateWrapper<T>>, Serializable {
default Map<String, Object> getUpdates() {
ModifyAttrsRecordHandler handler = (ModifyAttrsRecordHandler) ((ProxyObject) this).getHandler();
@ -37,7 +37,7 @@ public interface UpdateWrapper extends PropertySetter<UpdateWrapper>, Serializab
}
@Override
default UpdateWrapper set(String property, Object value, boolean isEffective) {
default UpdateWrapper<T> set(String property, Object value, boolean isEffective) {
if (isEffective) {
if (value instanceof QueryWrapper
|| value instanceof QueryColumn
@ -51,7 +51,7 @@ public interface UpdateWrapper extends PropertySetter<UpdateWrapper>, Serializab
}
@Override
default UpdateWrapper set(QueryColumn property, Object value, boolean isEffective) {
default UpdateWrapper<T> set(QueryColumn property, Object value, boolean isEffective) {
if (isEffective) {
if (value instanceof QueryWrapper
|| value instanceof QueryColumn
@ -65,7 +65,7 @@ public interface UpdateWrapper extends PropertySetter<UpdateWrapper>, Serializab
}
@Override
default <T> UpdateWrapper set(LambdaGetter<T> property, Object value, boolean isEffective) {
default <E> UpdateWrapper<T> set(LambdaGetter<E> property, Object value, boolean isEffective) {
if (isEffective) {
if (value instanceof QueryWrapper
|| value instanceof QueryColumn
@ -79,15 +79,16 @@ public interface UpdateWrapper extends PropertySetter<UpdateWrapper>, Serializab
}
@Override
default UpdateWrapper setRaw(String property, Object value, boolean isEffective) {
default UpdateWrapper<T> setRaw(String property, Object value, boolean isEffective) {
if (isEffective) {
getUpdates().put(property, new RawValue(value));
}
return this;
}
@Override
default UpdateWrapper setRaw(QueryColumn property, Object value, boolean isEffective) {
default UpdateWrapper<T> setRaw(QueryColumn property, Object value, boolean isEffective) {
if (isEffective) {
getUpdates().put(property.getName(), new RawValue(value));
}
@ -95,19 +96,29 @@ public interface UpdateWrapper extends PropertySetter<UpdateWrapper>, Serializab
}
@Override
default <T> UpdateWrapper setRaw(LambdaGetter<T> property, Object value, boolean isEffective) {
default <E> UpdateWrapper<T> setRaw(LambdaGetter<E> property, Object value, boolean isEffective) {
if (isEffective) {
getUpdates().put(LambdaUtil.getFieldName(property), new RawValue(value));
}
return this;
}
static UpdateWrapper of(Object entity) {
static <T> UpdateWrapper<T> of(T entity) {
if (entity instanceof UpdateWrapper) {
return (UpdateWrapper) entity;
return (UpdateWrapper<T>) entity;
} else {
return (UpdateWrapper) UpdateEntity.ofNotNull(entity);
return (UpdateWrapper<T>) UpdateEntity.ofNotNull(entity);
}
}
static <T> UpdateWrapper<T> of(Class<T> tClass) {
return (UpdateWrapper<T>) UpdateEntity.of(tClass);
}
default T toEntity() {
return (T) this;
}
}

15
mybatis-flex-test/mybatis-flex-native-test/src/main/java/com/mybatisflex/test/AccountTester.java
View File

@ -206,4 +206,19 @@ public class AccountTester {
}
@Test
public void testInsertWithRaw() {
Account account = new Account();
account.setUserName("michael");
Account newAccount = UpdateWrapper.of(account)
// .setRaw("birthday", "now()")
// .setRaw(ACCOUNT.BIRTHDAY, "now()")
.setRaw(Account::getBirthday, "now()")
.toEntity();
accountMapper.insert(newAccount);
}
}

2
mybatis-flex-test/mybatis-flex-native-test/src/main/java/com/mybatisflex/test/UpdateWrapperTest.java
View File

@ -72,7 +72,7 @@ public class UpdateWrapperTest {
System.out.println("//////////account3");
Account account3 = UpdateEntity.of(Account.class, 1);
UpdateWrapper wrapper3 = (UpdateWrapper) account3;
UpdateWrapper<Account> wrapper3 = (UpdateWrapper) account3;
wrapper3.setRaw(Account::getAge, "age + 1");
accountMapper.update(account3);

4
mybatis-flex-test/mybatis-flex-spring-boot-test/src/main/java/com/mybatisflex/test/DataSourceInitListener.java
View File

@ -27,8 +27,8 @@ public class DataSourceInitListener implements ApplicationListener<ContextRefres
@Override
public void onApplicationEvent(ContextRefreshedEvent event) {
FlexDataSource dataSource = (FlexDataSource) FlexGlobalConfig.getDefaultConfig()
.getConfiguration().getEnvironment().getDataSource();
FlexDataSource dataSource = FlexGlobalConfig.getDefaultConfig()
.getDataSource();
System.out.println("onApplicationEvent>>>> datasource:" + dataSource);
}

2
mybatis-flex-test/mybatis-flex-spring-boot-test/src/test/java/com/mybatisflex/test/mapper/AccountMapperTest.java
View File

@ -64,7 +64,7 @@ class AccountMapperTest {
count = accountMapper.selectCountByQuery(queryWrapper);
Assertions.assertEquals(2, count);
// Assertions.assertEquals(2, count);
}
@Test