samples/table2ddl.ysl2
author Volker Birk <vb@pep-project.org>
Thu, 08 Apr 2021 15:17:25 +0200
changeset 74 c3c5a089072a
parent 0 76005e62091d
permissions -rw-r--r--
feature: include from *pointer
include yslt.yml2

define operator "“(.*?)”" as call "idl2ddl" with "type", "%1";

tstylesheet {
    const "idtype", "'INTEGER'";

    template "/" apply "module|class", 0;

    template "module" {
        param "namespace", "''";
        choose {
            when "$namespace=''"
                apply "module|class", 0 with "namespace", "@name";
            otherwise
                apply "module|class", 0 with "namespace", "concat($namespace,'_', @name)";
        }
    }

    template "class" {
        param "namespace", "''";

        choose {
            when "$namespace=''"    | CREATE TABLE «@name» (
            otherwise               | CREATE TABLE «$namespace»_«@name» (
        }

        if "count(attr[@name='id'])=0" |> id «$idtype»`if "count(attr)>0" > , `

        const "name", "@name";
        foreach "//class[class/@name=$name]" |> «@name»_fk «$idtype»,

        apply "attr";

        | );

        apply "class", 0 with "namespace", "$namespace";
    }

    template "attr" | «@name» “@type”`if "position() != last()" > , `

    function "idl2ddl" {
        param "type";

        choose {
            when "$type='string'"   > VARCHAR
            when "$type='long'"     > INTEGER
        }
    }
}