On 7/29/2013 10:38, ChilliPeppers wrote:
Hi All,
By default the order of nodes in a tree is alphabetical. Is there any
way to control this?
For example, is there any way in the swa:ClassTreeGadget to specify
the order for nodes in a tree for an SWA application?
Yes you can control this (and other things) via a custom
swa:TreeDataProvider. The ClassTreeGadget takes an argument
arg:classTreeDataProvider. You can clone one of the existing
TreeDataProviders and change its arg:treeChildrenTemplate so that instead of
SELECT ?node ?label ?leaf ?icon ?movable
WHERE {
?node rdfs:subClassOf ?parent .
FILTER ((isIRI(?node) && (?node != owl:Nothing)) && (?node !=
owl:NamedIndividual)) .
FILTER ((!bound(?filterFunction)) || spif:invoke(?filterFunction,
?node)) .
BIND (NOT EXISTS {
?child rdfs:subClassOf ?node .
} AS ?leaf) .
BIND (ui:label(?node) AS ?label) .
BIND ("swa-icon-class" AS ?icon) .
BIND ((!swa:isReadOnlyTriple(?node, rdfs:subClassOf, ?parent)) AS
?movable) .
}
ORDER BY (?label)
it would use
SELECT ?node ?label ?leaf ?icon ?movable
WHERE {
?node rdfs:subClassOf ?parent .
FILTER ((isIRI(?node) && (?node != owl:Nothing)) && (?node !=
owl:NamedIndividual)) .
FILTER ((!bound(?filterFunction)) || spif:invoke(?filterFunction,
?node)) .
BIND (NOT EXISTS {
?child rdfs:subClassOf ?node .
} AS ?leaf) .
BIND (ui:label(?node) AS ?label) .
BIND ("swa-icon-class" AS ?icon) .
BIND ((!swa:isReadOnlyTriple(?node, rdfs:subClassOf, ?parent)) AS
?movable) .
BIND (spl:object(?node, my:sortOrder) AS ?sortOrder) .
}
ORDER BY (?sortOrder)
In the end, the whole tree is based on SELECT queries and you can inject
your own SELECT query through the data providers.
HTH
Holger
I had thought of putting a "sortOrder" annotation property on my
classes that the TreeGadget could use to order the nodes, but can't
figure out how to apply it.
Thanks
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