来自错误元素的属性的 xslt 副本
xslt copy of attribute from wrong element
我正在使用这个模板：
<xsl:transform version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xpath-default-namespace="http://www.liquibase.org/xml/ns/dbchangelog"
xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
xmlns:uuid="http://uuid.util.java"
exclude-result-prefixes="uuid">
<xsl:output method="xml" indent="yes" omit-xml-declaration="yes"/>
<xsl:template match="node()|@*">
<xsl:copy>
<xsl:apply-templates select="node()|@*"/>
</xsl:copy>
</xsl:template>
<xsl:template match="changeSet[createTable]">
<xsl:copy>
<xsl:copy-of select="@*"/>
<xsl:apply-templates select="createTable"/>
<xsl:copy-of select="*[not(self::createTable)]"/>
</xsl:copy>
<xsl:if test="createTable/@remarks">
<xsl:element name="changeSet">
<xsl:attribute name="id" select="uuid:new-uuid()"/>
<xsl:attribute name="author">system</xsl:attribute>
<xsl:element name="setTableRemarks">
<xsl:copy-of select="createTable//(@tableName,@remarks)" />
</xsl:element>
<xsl:for-each select="createTable/column[@remarks]">
<xsl:element name="setColumnRemarks">
<xsl:copy-of select="../@tableName" />
<xsl:attribute name="columnName" select="@name"/>
<xsl:copy-of select="@remarks"/>
</xsl:element>
</xsl:for-each>
</xsl:element>
</xsl:if>
</xsl:template>
<xsl:template match="createTable/@remarks"/>
<xsl:template match="createTable/column/@remarks"/>
</xsl:transform>
像这样变换xml：
<?xml version="1.0" encoding="UTF-8"?>
<databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
<changeSet author="system (generated)" id="1538720867962-1">
<createTable remarks="Journal event detail attribute mapping" tableName="AS_JOURNALEVENTDETAILATTRMAP">
<column name="JOURNALEVENTTYPEID" remarks="Journal event type identifier" type="NUMBER(9, 0)">
<constraints primaryKey="true" primaryKeyName="PK$AS_JOURNALEVENTDETATTRMAP"/>
</column>
<column name="JOURNALEVENTDETAILATTRID" remarks="Journal event detail attribute identifier" type="NUMBER(9, 0)">
<constraints primaryKey="true" primaryKeyName="PK$AS_JOURNALEVENTDETATTRMAP"/>
</column>
<column name="LISTORDER" remarks="Order in list" type="NUMBER(9, 0)">
<constraints nullable="false"/>
</column>
</createTable>
</changeSet>
</databaseChangeLog>
我希望结果是：
<databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
<changeSet author="system (generated)" id="1538720867962-1">
<createTable tableName="AS_JOURNALEVENTDETAILATTRMAP">
<column name="JOURNALEVENTTYPEID" type="NUMBER(9, 0)">
<constraints primaryKey="true" primaryKeyName="PK$AS_JOURNALEVENTDETATTRMAP"/>
</column>
<column name="JOURNALEVENTDETAILATTRID" type="NUMBER(9, 0)">
<constraints primaryKey="true" primaryKeyName="PK$AS_JOURNALEVENTDETATTRMAP"/>
</column>
<column name="LISTORDER" type="NUMBER(9, 0)">
<constraints nullable="false"/>
</column>
</createTable>
</changeSet>
<changeSet id="c85f187d-f917-4948-8c48-7b1a132dd79e" author="system">
<setTableRemarks remarks="Journal event detail attribute mapping" tableName="AS_JOURNALEVENTDETAILATTRMAP"/>
<setColumnRemarks tableName="AS_JOURNALEVENTDETAILATTRMAP"
columnName="JOURNALEVENTTYPEID"
remarks="Journal event type identifier"/>
<setColumnRemarks tableName="AS_JOURNALEVENTDETAILATTRMAP"
columnName="JOURNALEVENTDETAILATTRID"
remarks="Journal event detail attribute identifier"/>
<setColumnRemarks tableName="AS_JOURNALEVENTDETAILATTRMAP"
columnName="LISTORDER"
remarks="Order in list"/>
</changeSet>
</databaseChangeLog>
但我得到的不是这个：
<databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
<changeSet author="system (generated)" id="1538720867962-1">
<createTable tableName="AS_JOURNALEVENTDETAILATTRMAP">
<column name="JOURNALEVENTTYPEID" type="NUMBER(9, 0)">
<constraints primaryKey="true" primaryKeyName="PK$AS_JOURNALEVENTDETATTRMAP"/>
</column>
<column name="JOURNALEVENTDETAILATTRID" type="NUMBER(9, 0)">
<constraints primaryKey="true" primaryKeyName="PK$AS_JOURNALEVENTDETATTRMAP"/>
</column>
<column name="LISTORDER" type="NUMBER(9, 0)">
<constraints nullable="false"/>
</column>
</createTable>
</changeSet>
<changeSet id="c85f187d-f917-4948-8c48-7b1a132dd79e" author="system">
<setTableRemarks remarks="Order in list" tableName="AS_JOURNALEVENTDETAILATTRMAP"/>
<setColumnRemarks tableName="AS_JOURNALEVENTDETAILATTRMAP"
columnName="JOURNALEVENTTYPEID"
remarks="Journal event type identifier"/>
<setColumnRemarks tableName="AS_JOURNALEVENTDETAILATTRMAP"
columnName="JOURNALEVENTDETAILATTRID"
remarks="Journal event detail attribute identifier"/>
<setColumnRemarks tableName="AS_JOURNALEVENTDETAILATTRMAP"
columnName="LISTORDER"
remarks="Order in list"/>
</changeSet>
</databaseChangeLog>
注意：问题出在元素setTableRemarks和属性remarks。它是从另一个元素复制而来的，而不是我想它应该是从 createTable 复制而来的。是我的模板有问题还是有其他问题？
用于此的 saxon 库是 9.8.0-14 我也尝试过 9.9.0-1 但没有任何改变。
而不是这样做...
<xsl:copy-of select="createTable//(@tableName,@remarks)" />
这样做...
<xsl:copy-of select="createTable/(@tableName,@remarks)" />
使用 // 是 shorthand 用于 /descendant-or-self::node()/，因此将搜索 createTable 的所有后代节点，而不仅仅是节点本身。由于这将 select 具有相同名称的多个属性，因此只会复制最后一个属性（将属性添加到已存在具有相同名称的现有属性的节点应该替换它）。
我正在使用这个模板：
<xsl:transform version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xpath-default-namespace="http://www.liquibase.org/xml/ns/dbchangelog"
xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
xmlns:uuid="http://uuid.util.java"
exclude-result-prefixes="uuid">
<xsl:output method="xml" indent="yes" omit-xml-declaration="yes"/>
<xsl:template match="node()|@*">
<xsl:copy>
<xsl:apply-templates select="node()|@*"/>
</xsl:copy>
</xsl:template>
<xsl:template match="changeSet[createTable]">
<xsl:copy>
<xsl:copy-of select="@*"/>
<xsl:apply-templates select="createTable"/>
<xsl:copy-of select="*[not(self::createTable)]"/>
</xsl:copy>
<xsl:if test="createTable/@remarks">
<xsl:element name="changeSet">
<xsl:attribute name="id" select="uuid:new-uuid()"/>
<xsl:attribute name="author">system</xsl:attribute>
<xsl:element name="setTableRemarks">
<xsl:copy-of select="createTable//(@tableName,@remarks)" />
</xsl:element>
<xsl:for-each select="createTable/column[@remarks]">
<xsl:element name="setColumnRemarks">
<xsl:copy-of select="../@tableName" />
<xsl:attribute name="columnName" select="@name"/>
<xsl:copy-of select="@remarks"/>
</xsl:element>
</xsl:for-each>
</xsl:element>
</xsl:if>
</xsl:template>
<xsl:template match="createTable/@remarks"/>
<xsl:template match="createTable/column/@remarks"/>
</xsl:transform>
像这样变换xml：
<?xml version="1.0" encoding="UTF-8"?>
<databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
<changeSet author="system (generated)" id="1538720867962-1">
<createTable remarks="Journal event detail attribute mapping" tableName="AS_JOURNALEVENTDETAILATTRMAP">
<column name="JOURNALEVENTTYPEID" remarks="Journal event type identifier" type="NUMBER(9, 0)">
<constraints primaryKey="true" primaryKeyName="PK$AS_JOURNALEVENTDETATTRMAP"/>
</column>
<column name="JOURNALEVENTDETAILATTRID" remarks="Journal event detail attribute identifier" type="NUMBER(9, 0)">
<constraints primaryKey="true" primaryKeyName="PK$AS_JOURNALEVENTDETATTRMAP"/>
</column>
<column name="LISTORDER" remarks="Order in list" type="NUMBER(9, 0)">
<constraints nullable="false"/>
</column>
</createTable>
</changeSet>
</databaseChangeLog>
我希望结果是：
<databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
<changeSet author="system (generated)" id="1538720867962-1">
<createTable tableName="AS_JOURNALEVENTDETAILATTRMAP">
<column name="JOURNALEVENTTYPEID" type="NUMBER(9, 0)">
<constraints primaryKey="true" primaryKeyName="PK$AS_JOURNALEVENTDETATTRMAP"/>
</column>
<column name="JOURNALEVENTDETAILATTRID" type="NUMBER(9, 0)">
<constraints primaryKey="true" primaryKeyName="PK$AS_JOURNALEVENTDETATTRMAP"/>
</column>
<column name="LISTORDER" type="NUMBER(9, 0)">
<constraints nullable="false"/>
</column>
</createTable>
</changeSet>
<changeSet id="c85f187d-f917-4948-8c48-7b1a132dd79e" author="system">
<setTableRemarks remarks="Journal event detail attribute mapping" tableName="AS_JOURNALEVENTDETAILATTRMAP"/>
<setColumnRemarks tableName="AS_JOURNALEVENTDETAILATTRMAP"
columnName="JOURNALEVENTTYPEID"
remarks="Journal event type identifier"/>
<setColumnRemarks tableName="AS_JOURNALEVENTDETAILATTRMAP"
columnName="JOURNALEVENTDETAILATTRID"
remarks="Journal event detail attribute identifier"/>
<setColumnRemarks tableName="AS_JOURNALEVENTDETAILATTRMAP"
columnName="LISTORDER"
remarks="Order in list"/>
</changeSet>
</databaseChangeLog>
但我得到的不是这个：
<databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
<changeSet author="system (generated)" id="1538720867962-1">
<createTable tableName="AS_JOURNALEVENTDETAILATTRMAP">
<column name="JOURNALEVENTTYPEID" type="NUMBER(9, 0)">
<constraints primaryKey="true" primaryKeyName="PK$AS_JOURNALEVENTDETATTRMAP"/>
</column>
<column name="JOURNALEVENTDETAILATTRID" type="NUMBER(9, 0)">
<constraints primaryKey="true" primaryKeyName="PK$AS_JOURNALEVENTDETATTRMAP"/>
</column>
<column name="LISTORDER" type="NUMBER(9, 0)">
<constraints nullable="false"/>
</column>
</createTable>
</changeSet>
<changeSet id="c85f187d-f917-4948-8c48-7b1a132dd79e" author="system">
<setTableRemarks remarks="Order in list" tableName="AS_JOURNALEVENTDETAILATTRMAP"/>
<setColumnRemarks tableName="AS_JOURNALEVENTDETAILATTRMAP"
columnName="JOURNALEVENTTYPEID"
remarks="Journal event type identifier"/>
<setColumnRemarks tableName="AS_JOURNALEVENTDETAILATTRMAP"
columnName="JOURNALEVENTDETAILATTRID"
remarks="Journal event detail attribute identifier"/>
<setColumnRemarks tableName="AS_JOURNALEVENTDETAILATTRMAP"
columnName="LISTORDER"
remarks="Order in list"/>
</changeSet>
</databaseChangeLog>
注意：问题出在元素setTableRemarks和属性remarks。它是从另一个元素复制而来的，而不是我想它应该是从 createTable 复制而来的。是我的模板有问题还是有其他问题？
用于此的 saxon 库是 9.8.0-14 我也尝试过 9.9.0-1 但没有任何改变。
而不是这样做...
<xsl:copy-of select="createTable//(@tableName,@remarks)" />
这样做...
<xsl:copy-of select="createTable/(@tableName,@remarks)" />
使用 // 是 shorthand 用于 /descendant-or-self::node()/，因此将搜索 createTable 的所有后代节点，而不仅仅是节点本身。由于这将 select 具有相同名称的多个属性，因此只会复制最后一个属性（将属性添加到已存在具有相同名称的现有属性的节点应该替换它）。