Hi,
I'm trying to configure an app-schema and get a bit lost with nested
features and link parameters.
The first case i will introduce looks pretty simple, and maybe help me to
figure out how does it work.
in my main mapping file, i have a feature type,
<targetElement>au:AdministrativeUnit</targetElement>, mapping a postgis
table.
in this feature, i have an attribute name, mapping the name field of the DB
table1.
<AttributeMapping>
<targetAttribute>au:name/gn:GeographicalName/gn:spelling/gn:SpellingOfName/gn:text</targetAttribute>
<sourceExpression>
<OCQL>name</OCQL>
</sourceExpression>
</AttributeMapping>
this gives me :
<au:name>
<gn:GeographicalName>
<gn:spelling>
<gn:SpellingOfName>
<gn:text>*FR2100000000*</gn:text>
</gn:SpellingOfName>
</gn:spelling>
</gn:GeographicalName>
</au:name>
but actually, i have another postgis table2 that contains
id | text
FR2100000000 | Paris
and what i would like to have is
<au:name>
<gn:GeographicalName>
<gn:spelling>
<gn:SpellingOfName>
<gn:text>*Paris*</gn:text>
</gn:SpellingOfName>
</gn:spelling>
</gn:GeographicalName>
</au:name>
so what i did is another mapping file, for a non feature type, but needed
datas, to configure au:name
here my spellingOfName.xml mapping file :
<targetElement>*au:name*</targetElement>
<groupBy />
<attributeMappings>
<AttributeMapping>
<targetAttribute>au:name</targetAttribute>
<sourceExpression>
<OCQL>getID()</OCQL>
</sourceExpression>
</AttributeMapping>
</attributeMappings>
<attributeMappings>
<AttributeMapping>
<targetAttribute>FEATURE_LINK</targetAttribute>
<sourceExpression>
<OCQL>id</OCQL>
</sourceExpression>
</AttributeMapping>
</attributeMappings>
<attributeMappings>
<AttributeMapping>
<targetAttribute>au:name/gn:GeographicalName/gn:spelling/gn:SpellingOfName/gn:text</targetAttribute>
<sourceExpression>
<OCQL>text</OCQL>
</sourceExpression>
</AttributeMapping>
</attributeMappings>
</FeatureTypeMapping>
then, in my root mapping file i added
<includedTypes>spellingOfName.xml</includedTypes>
and i tried to link with (replacing uppon au:name definition) :
*
<AttributeMapping>
<targetAttribute>au:AdministrativeUnit</targetAttribute>
<sourceExpression>
<OCQL>getID()</OCQL>
<linkElement>au:name</linkElement>
<linkField>FEATURE_lINK</linkField>
</sourceExpression>
</AttributeMapping>*
(au:AdministrativeUnit is the parent element of au:name)
the last definition is what i would like to discuss about ... cause i admit
to be quite lost with the use of the linkElement and linkField tags...
if anyone could spend time on this case, and discuss a bit about the
linking process of app-schema, i would really appreciate.
the funny thing is that if i remove the
<includedTypes>spellingOfName.xml</includedTypes>, it doesn't give anyerror
and give the same result : no tag au:name in my response.
thanks
--
Florent Gravin
CampToCamp - Chambéry
0479444492
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