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<?xml version="1.0" encoding="ISO-8859-1"?>
<!--
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- project.
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- Copyright (C) 1998-2018 OpenLink Software
-
- This project is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
- Free Software Foundation; only version 2 of the License, dated June 1991.
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- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
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- 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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-->
<refentry id="fn_xml_create_tables_from_mapping_schema_decl">
<refmeta>
<refentrytitle>xml_create_tables_from_mapping_schema_decl</refentrytitle>
<refmiscinfo>xml</refmiscinfo>
</refmeta>
<refnamediv>
<refname>xml_create_tables_from_mapping_schema_decl</refname>
<refpurpose> returns a vector containing strings. Each string is a command to drop
a table or a foreign key or to create table.
</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis id="fsyn_xml_create_tables_from_mapping_schema_decl">
<funcprototype id="fproto_xml_create_tables_from_mapping_schema_decl">
<funcdef><function>xml_create_tables_from_mapping_schema_decl</function></funcdef>
<paramdef>in <parameter>base_uri</parameter> varchar</paramdef>
<paramdef>in <parameter>mapping_schema_file</parameter> varchar</paramdef>
<paramdef>in <parameter>content_encoding</parameter> varchar</paramdef>
<paramdef>in <parameter>content_language</parameter> varchar</paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 id="desc"><title>Description</title> <para>
<function>xml_create_tables_from_mapping_schema_decl</function> takes a file containing mapping schema and
returns a vector containing strings. Each string is a command to drop a table or a foreign key or to
create table. All tables and fields are mentioned in the mapping schema. If a field type is not defined in
the mapping schema, the VARCHAR type is used. </para>
</refsect1>
<refsect1 id="params"><title>Parameters</title>
<refsect2><title>base_uri</title>
<para>in HTML parser mode change all absolute references to relative from given base_uri (http://<host>:<port>/<path>)</para></refsect2>
<refsect2><title>mapping_schema_file</title>
<para>well formed XML document containing a mapping schema</para>
</refsect2>
<refsect2><title>content_encoding</title>
<para>string with content encoding type of <document>; valid are 'ASCII', 'ISO', 'UTF8', 'ISO8859-1', 'LATIN-1' etc., defaults are 'UTF-8' for XML mode and 'LATIN-1' for HTML mode</para></refsect2>
<refsect2><title>content_language</title>
<para>string with language tag of content of <document>; valid names are listed in IETF RFC 1766, default is 'x-any' (it means 'mix of words from various human languages)</para></refsect2>
</refsect1>
<refsect1 id="ret"><title>Return Types</title><para>A vector containing strings</para></refsect1>
<refsect1 id="examples"><title></title>
<example id="ex_xml_create_tables_from_mapping_schema_decl"><title>Extracting tables from mapping schema</title>
<para>Let we have the following mapping schema in the catmp.xsd file</para>
<programlisting><![CDATA[
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:sql="urn:schemas-microsoft-com:mapping-schema">
<xsd:annotation>
<xsd:appinfo>
<sql:relationship name="CategoryProduct"
parent="Demo.demo.Categories"
parent-key="CategoryID"
child="Demo.demo.Products"
child-key="CategoryID" />
</xsd:appinfo>
</xsd:annotation>
<xsd:element name="category" sql:relation="Demo.demo.Categories" type="CategoryType" />
<xsd:complexType name="CategoryType" >
<xsd:sequence>
<xsd:element name="product"
sql:relation="Demo.demo.Products"
sql:relationship="CategoryProduct" >
<xsd:complexType>
<xsd:attribute name="ProductName" type="xsd:string" />
</xsd:complexType>
</xsd:element>
</xsd:sequence>
<xsd:attribute name="CategoryID" type="xsd:integer" />
<xsd:attribute name="description" sql:field="Description" type="xsd:string" />
</xsd:complexType>
</xsd:schema>
]]></programlisting>
<para>the _result vector after the call</para>
<programlisting>
_result := xml_create_tables_from_mapping_schema_decl (
'http://localhost.localdomain/xmlrepository',
'catmp.xsd', 'UTF-8', 'x-any');
</programlisting>
<para>will contain the following six strings</para>
<programlisting>
drop table "Demo"."demo"."Categories",
ALTER TABLE "Demo"."demo"."Products" DROP CONSTRAINT "Demo.demo.Products_Demo.demo.Categories_FK",
drop table "Demo"."demo"."Products",
create table "Demo"."demo"."Categories"
("Description" VARCHAR, "CategoryID" INTEGER, PRIMARY KEY ("CategoryID")),
create table "Demo"."demo"."Products" ("CategoryID" INTEGER, "ProductName" VARCHAR),
ALTER TABLE "Demo"."demo"."Products" ADD CONSTRAINT "Demo.demo.Products_Demo.demo.Categories_FK"
FOREIGN KEY ("CategoryID") REFERENCES "Demo"."demo"."Categories" ("CategoryID")
</programlisting>
</example>
</refsect1>
<refsect1 id="seealso"><title>See Also</title>
<para><link linkend="fn_xml_load_mapping_schema_decl"><function>xml_load_mapping_schema_decl()</function></link></para>
<para><link linkend="fn_xml_load_schema_decl"><function>xml_load_schema_decl()</function></link></para>
<para><link linkend="fn_xml_view_schema"><function>xml_view_schema()</function></link></para>
</refsect1>
</refentry>
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