RE: [xsl] Passing parameter into xsl:for-each

[cknell@xxxxxxxxxx]

> -----Original Message-----
> From:     Ade Odusote <aodusote@xxxxxxxxxxx>
> Sent:     Mon, 16 Aug 2004 10:34:09 -0400
> To:       <xsl-list@xxxxxxxxxxxxxxxxxxxxxx>
> Subject:  [xsl] Passing parameter into xsl:for-each
>
> I have an XML data dictionary which I am trying to use to create a SQL DDL statement. 
> The XML is below:

I second Andrew Welch's remark on the combination of push/pull. Once you are able to wrap your brain around push processing (admittedly hard to do for a person with a procedural programming background), you will find that they make XLST programming much easier.

The structure of your XML is ambiguous when it comes to deciding which data type to apply. For example, what is the data type of dictionary/columns/column[@name="COMP_CODE"]?
I assumed that it is VARCHAR2, but it could be VARCHAR or CHAR. Is RENW_STOR_PROF_CODE fixed or a float? Is VAR_LINE_ROOT_FLAG a byte or a char?

I made some assumptions on data typing, changed the output to "text", and switched to a push process to make this first cut approximation. See if you can take it from there.

<?xml version="1.0" encoding="UTF-8" ?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
  <xsl:output method="text" indent="yes" encoding="UTF-8" />

  <xsl:template match="/">
    <xsl:apply-templates />
  </xsl:template>

  <xsl:template match="tables">
    <xsl:apply-templates />
  </xsl:template>

  <xsl:template match="table">
    create table <xsl:value-of select="@name" />(
      <xsl:apply-templates select="column" />
    );
  </xsl:template>

  <xsl:template match="column">
    <xsl:variable name="this-col" select="@name" />
    <xsl:variable name="d-type">
      <xsl:choose>
        <xsl:when test="/dictionary/columns/column[@name=$this-col][@datatype='number']"> FLOAT(<xsl:value-of select="/dictionary/columns/column[@name=$this-col]/@length" />,<xsl:value-of select="/dictionary/columns/column[@name=$this-col]/@decimals" />)</xsl:when>
        <xsl:when test="/dictionary/columns/column[@name=$this-col][@datatype='date']"> DATE</xsl:when>
        <xsl:otherwise><xsl:value-of select="/dictionary/columns/column[@name=$this-col]/@datatype" /> VARCHAR2 <xsl:value-of select="/dictionary/columns/column[@name=$this-col]/@length" /></xsl:otherwise>
      </xsl:choose>
    </xsl:variable>
    <xsl:value-of select="@name" /> <xsl:value-of select="$d-type" />
    <xsl:if test="following-sibling::column">,</xsl:if>
  </xsl:template>

  <xsl:template match="columns" />
  <xsl:template match="columns/column" />

</xsl:stylesheet>

-- 
Charles Knell
cknell@xxxxxxxxxx - email