模式版本示例

扩展表

要扩展​nms:收件人​模式收件人表,请应用以下过程:

  1. 使用以下数据创建扩展模式(cus:extension):

    <srcSchema mappingType="sql" name="extension" namespace="cus" xtkschema="xtk:srcSchema" extendedSchema="nms:recipient">  
      <enumeration basetype="string" default="area1" name="area">    
        <value label="Zone 1" name="area1"/>    
        <value label="Zone 2" name="area2"/>  
      </enumeration>  
    
      <element name="extension">    
        <dbindex name="area">      
          <keyfield xpath="location/@area"/>    
        </dbindex>      
    
        <attribute label="Loyalty code" name="fidelity" type="long"/>    
        <element name="location">      
          <attribute name="area" label="Purchasing zone" type="string" length="50" enum="area"/>    
        </element>  </element>  
    </srcSchema>
    

    在本例中,添加索引字段(fidelity),并且​location​元素(在​nms:收件人​模式中已存在)用枚举字段(area)补充。

    重要

    请记住添加​extendedSchema​属性以引用扩展模式。

  2. 检查扩展模式是​nms:收件人​模式,并检查是否存在其他数据:

    <schema dependingSchemas="cus:extension" mappingType="sql" name="recipient" namespace="nms" xtkschema="xtk:schema">
      ...
      <enumeration basetype="string" default="area1" name="area">    
        <value label="Zone 1" name="area1"/>    
        <value label="Zone 2" name="area2"/>  
      </enumeration>
      ...
      <element autopk="true" name="recipient" sqltable="NmsRecipient"> 
        <dbindex name="area">      
          <keyfield xpath="location/@area"/>    
        </dbindex>
    
        ...
        <attribute belongsTo="cus:extension" label="Loyalty code" name="fidelity" sqlname="iFidelity" type="long"/>
        <element name="location">
          ...
          <attribute enum="area" label="Purchasing zone" length="50" name="area" sqlname="sArea" type="string"/>
        </element>
        ...
      </element>
    </schema>
    

    从数据库更新向导生成的SQL脚本如下所示:

    ALTER TABLE NmsRecipient ADD iFidelity INTEGER;
    UPDATE NmsRecipient SET iFidelity = 0;
    ALTER TABLE NmsRecipient ALTER COLUMN iFidelity SET NOT NULL;ALTER TABLE NmsRecipient ALTER COLUMN iFidelity SET Default 0;
    ALTER TABLE NmsRecipient ADD sArea VARCHAR(50); 
    CREATE INDEX NmsRecipient_area ON NmsRecipient(sArea);
    

链接的集合表

本节介绍如何创建链接到基数为1-N的收件人表的订单表。

排序表源模式:

<srcSchema label="Order" name="order" namespace="cus" xtkschema="xtk:srcSchema">  
  <element autopk="true" name="order">    
    <compute-string expr="@number" + '(' + ToString(@date) + ')'/>    
    
    <attribute label="Number" length="128" name="number" type="string"/>    
    <attribute desc="Order date" label="Date" name="date" type="datetime" default="GetDate()"/>    
    <attribute desc="order total" label="Total" name="total" type="double"/>    
    <element label="Recipient" name="recipient" revDesc="Orders associated with this recipient" revIntegrity="own" revLabel="Orders" target="nms:recipient" type="link"/>  
  </element>
</srcSchema>

表类型为​autopk,以便创建自动生成的主键,以便链接连接到收件人表时使用。

模式生成:

<schema label="Order" mappingType="sql" name="order" namespace="cus" xtkschema="xtk:schema">  
  <element autopk="true" label="Order" name="order" sqltable="CusOrder">    
    <compute-string expr="ToString(@date) + ' - ' + @number"/>    

    <dbindex name="id" unique="true">      
      <keyfield xpath="@id"/>    
    </dbindex>    

    <key internal="true" name="id">      
      <keyfield xpath="@id"/>    
    </key>    

    <dbindex name="recipientId">      
      <keyfield xpath="@recipient-id"/>    
    </dbindex>    

    <attribute desc="Internal primary key" label="Primary key" name="id" sqlname="iOrderId" type="long"/>    
    <attribute label="Number" length="128" name="number" sqlname="sNumber" type="string"/>    
    <attribute desc="Order date" label="Date" name="date" sqlname="tsDate" type="datetime"/>    
    <attribute desc="order total" label="Total" name="total" sqlname="Total" type="double"/>    
    <element label="Recipient" name="recipient" revLink="order" target="nms:recipient" type="link">      
      <join xpath-dst="@id" xpath-src="@recipient-id"/>    
    </element>    
    <attribute advanced="true" label="Foreign key of 'Recipient' link ('id' field)" name="recipient-id" sqlname="iRecipientId" type="long"/>  
   </element>
</schema>

表创建SQL脚本如下所示:

CREATE TABLE CusOrder(dTotal DOUBLE PRECISION NOT NULL Default 0, iOrderId INTEGER NOT NULL Default 0, iRecipientId INTEGER NOT NULL Default 0, sNumber VARCHAR(128), tsDate TIMESTAMP Default NULL);
CREATE UNIQUE INDEX CusOrder_id ON CusOrder(iOrderId);
CREATE INDEX CusOrder_recipientId ON CusOrder(iRecipientId);  
INSERT INTO CusOrder (iOrderId) VALUES (0); 
注意

在脚本末尾的SQL命令INSERT INTO允许您插入设置为0的标识符记录以模拟外部连接。

扩展表

扩展表允许您扩展基数1-1链接表中现有表的内容。

扩展表的目的是避免对表中支持的字段数的限制,或优化数据所占用的空间(按需消耗)。

创建扩展表模式(cus:feature):

<srcSchema mappingType="sql" name="feature" namespace="cus" xtkschema="xtk:srcSchema">  
  <element autopk="true" name="feature">    
    <attribute label="Children" name="children" type="byte"/>    
    <attribute label="Single" name="single" type="boolean"/>    
    <attribute label="Spouse first name" length="100" name="spouseFirstName" type="string"/>  
  </element>
</srcSchema>

在收件人表上创建扩展模式以添加基数1-1链接:

<srcSchema extendedSchema="nms:recipient" label="Recipient" mappingType="sql" name="recipient" namespace="cus" xtkschema="xtk:srcSchema">  
  <element name="recipient">    
    <element desc="Features" integrity="own" label="Features" name="feature" revCardinality="single" revLink="recipient" target="cus:feature" type="link"/> 
  </element>
</srcSchema>
注意

必须从包含外键的模式填充收件人表和扩展表之间链接的定义。

用于创建扩展表的SQL脚本如下所示:

CREATE TABLE CusFeature(  iChildren NUMERIC(3) NOT NULL Default 0, iFeatureId INTEGER NOT NULL Default 0, iSingle NUMERIC(3) NOT NULL Default 0, sSpouseFirstName VARCHAR(100));
CREATE UNIQUE INDEX CusFeature_id ON CusFeature(iFeatureId);  
INSERT INTO CusFeature (iFeatureId) VALUES (0); 

收件人表SQL更新脚本如下所示:

ALTER TABLE NmsRecipient ADD iFeatureId INTEGER;
UPDATE NmsRecipient SET iFeatureId = 0;
ALTER TABLE NmsRecipient ALTER COLUMN iFeatureId SET NOT NULL;
ALTER TABLE NmsRecipient ALTER COLUMN iFeatureId SET Default 0;
CREATE INDEX NmsRecipient_featureId ON NmsRecipient(iFeatureId);

溢出表

溢出表是扩展表(基数1-1),但在溢出表的模式中填充指向要扩展表的链接声明。

溢出表包含要扩展的表的外键。 因此,不会修改要扩展的表。 两个表之间的关系是要扩展的表的主键的值。

创建溢出表模式(cus:overflow):

<srcSchema label="Overflow" name="overflow" namespace="cus" xtkschema="xtk:srcSchema">  
  <element name="overflow">    
    <key internal="true" name="id">      
      <keyfield xlink="recipient"/>    
    </key>    

    <attribute label="Children" name="children" type="byte"/>    
    <attribute label="Single" name="single" type="boolean"/>    
    <attribute label="Spouse first name" length="100" name="spouseFirstName" type="string"/>  
    <element label="Customer" name="recipient" revCardinality="single" revIntegrity="own" revExternalJoin="true" target="nms:recipient" type="link"/>  
  </element>  
</srcSchema>
注意

溢出表的主键是指向要扩展的表的链接(示例中的“nms:收件人”模式)。

表创建SQL脚本如下所示:

CREATE TABLE CusOverflow(iChildren NUMERIC(3) NOT NULL Default 0, iRecipientId INTEGER NOT NULL Default 0, iSingle NUMERIC(3) NOT NULL Default 0, sSpouseFirstName VARCHAR(100));
CREATE UNIQUE INDEX CusOverflow2_id ON CusOverflow2(iRecipientId);  

关系表

关系表允许您将两个表与基数N-N链接。此表仅包含要链接的表的外键。

组(nms:group)和收件人(nms:收件人)之间关系表的示例。

关系表的源模式:

<srcSchema name="rcpGrpRel" namespace="cus">
  <element name="rcpGrpRel">
    <key internal="true" name="id">      
      <keyfield xlink="rcpGroup"/>      
      <keyfield xlink="recipient"/>    
    </key>

    <element integrity="neutral" label="Recipient" name="recipient" revDesc="Groups to which this recipient belongs" revIntegrity="own" revLabel="Groups" target="nms:recipient" type="link"/>    
    <element integrity="neutral" label="Group" name="rcpGroup" revDesc="Recipients in the group" revIntegrity="own" revLabel="Recipients" revLink="rcpGrpRel" target="nms:group" type="link"/>
  </element>
</srcSchema>

生成的模式如下:

<schema mappingType="sql" name="rcpGrpRel" namespace="cus" xtkschema="xtk:schema">  
  <element name="rcpGrpRel" sqltable="CusRcpGrpRel">    
    <compute-string expr="ToString([@rcpGroup-id]) + ',' + ToString([@recipient-id])"/>    
    <dbindex name="id" unique="true">      
      <keyfield xpath="@rcpGroup-id"/>      
      <keyfield xpath="@recipient-id"/>    
    </dbindex>    

    <key internal="true" name="id">      
      <keyfield xpath="@rcpGroup-id"/>      
      <keyfield xpath="@recipient-id"/>    
    </key>    

    <dbindex name="rcpGroupId">      
      <keyfield xpath="@rcpGroup-id"/>    
    </dbindex>    
    <dbindex name="recipientId">      
      <keyfield xpath="@recipient-id"/>    
    </dbindex>    

    <element integrity="neutral" label="Recipient" name="recipient" revLink="rcpGrpRel" target="nms:recipient" type="link">      
      <join xpath-dst="@id" xpath-src="@recipient-id"/>    
    </element>    
    <attribute advanced="true" label="Foreign key of 'Recipient' link ('id' field)" name="recipient-id" sqlname="iRecipientId" type="long"/>    

    <element integrity="neutral" label="Group" name="rcpGroup" revLink="rcpGrpRel" target="nms:group" type="link">      
      <join xpath-dst="@id" xpath-src="@rcpGroup-id"/>    
    </element>    
    <attribute advanced="true" label="Foreign key of 'Group' link ('id' field)" name="rcpGroup-id" sqlname="iRcpGroupId" type="long"/>  
  </element>
</schema>

表创建SQL脚本如下所示:

CREATE TABLE CusRcpGrpRel( iRcpGroupId INTEGER NOT NULL Default 0, iRecipientId INTEGER NOT NULL Default 0);
CREATE UNIQUE INDEX CusRcpGrpRel_id ON CusRcpGrpRel(iRcpGroupId, iRecipientId);
CREATE INDEX CusRcpGrpRel_recipientId ON CusRcpGrpRel(iRecipientId);

此用例演示了如何使用现有引用表作为内置Adobe Campaign明细列表机制(enum、userEnum或dbEnum)的替代。

您还可以在模式中将现有引用表用作明细列表。 可通过在表和引用表之间创建链接并添加属性​displayAsField="true"​来实现这一点。

在此示例中,引用表包含银行名称和标识符的列表:

<srcSchema entitySchema="xtk:srcSchema" img="cus:bank16x16.png" label="Bank" mappingType="sql" name="bank" namespace="cus"
xtkschema="xtk:srcSchema">
    <element img="cus:bank16x16.png" label="Banks" name="bank">
        <compute-string expr="@name"/>
        <key name="id">
            <keyfield xpath="@id"/>
        </key>
        <attribute label="Bank Id" name="id" type="short"/>
        <attribute label="Name" length="64" name="name" type="string"/>
     </element> 
</srcSchema>

在使用此引用表的任何表中,定义链接并添加​displayAsField="true"​属性。

<element displayAsField="true" label="Bank" name="bank" target="cus:bank" type="link" noDbIndex="true"/>

用户界面将不显示链接,而显示字段。 当用户选取该字段时,他可以从参考表中选择一个值或使用自动完成功能。

  • 要使其自动完成,必须在引用表中定义计算字符串。

  • 在链接定义中添加​noDbIndex="true"​属性,以防止Adobe Campaign在链接的源表中存储的值上创建索引。

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