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NIHVIVO-707 Set hidden rank field value based on existing webpage ranks

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This commit is contained in:
ryounes 2011-07-11 18:26:29 +00:00
parent 749e6f4572
commit a970039ff3
1 changed files with 23 additions and 16 deletions
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39
productMods/edit/forms/addEditWebpageForm.jsp
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@ -46,14 +46,16 @@ core:rank
<%!
public static Log log = LogFactory.getLog("edu.cornell.mannlib.vitro.webapp.jsp.edit.forms.addEditWebpageForm.jsp");
public static String RANK_QUERY =
"PREFIX core: <http://vivoweb.org/ontology/core#> \n" +
"SELECT DISTINCT ?rank WHERE { \n" +
" ?subject core:webpage ?link . \n" +
" ?link core:rank ?rank .\n" +
"} ORDER BY DESC(?rank) \n" +
"LIMIT 1";
/* Note on ordering by rank in sparql: if there is a non-integer value on a link, that will be returned.
* Preventing that would require getting all the ranks and ordering in Java, throwing out non-int values.
*/
public static String RANK_QUERY = ""
+ "PREFIX core: <http://vivoweb.org/ontology/core#> \n"
+ "SELECT DISTINCT ?rank WHERE { \n"
+ " ?subject core:webpage ?link . \n"
+ " ?link core:rank ?rank .\n"
+ "} ORDER BY DESC(?rank) LIMIT 1";
%>
<%
@ -67,10 +69,12 @@ core:rank
String stringDatatypeUriJson = MiscWebUtils.escape(XSD.xstring.toString());
String uriDatatypeUriJson = MiscWebUtils.escape(XSD.anyURI.toString());
String intDatatypeUriJson = MiscWebUtils.escape(XSD.xint.toString());
%>
<c:set var="stringDatatypeUriJson" value="<%= stringDatatypeUriJson %>" />
<c:set var="uriDatatypeUriJson" value="<%= uriDatatypeUriJson %>" />
<c:set var="intDatatypeUriJson" value="<%= intDatatypeUriJson %>" />
<c:set var="core" value="http://vivoweb.org/ontology/core#" />
<c:set var="linkClass" value="${core}URLLink" />
@ -188,7 +192,7 @@ core:rank
"literalOptions" : [ ],
"predicateUri" : "",
"objectClassUri" : "",
"rangeDatatypeUri" : "${stringDatatypeUriJson}",
"rangeDatatypeUri" : "${intDatatypeUriJson}",
"rangeLang" : "",
"assertions" : [ "${rankAssertion}" ]
}
@ -218,32 +222,33 @@ core:rank
String subjectName = ((Individual)request.getAttribute("subject")).getName();
// Get largest existing rank value, increment by 1, for hidden rank field value
// Get largest existing rank value
int maxRank = 0; // default value
if (objectUri == null) { // adding new webpage
log.debug("getting max existing rank for subject");
String queryStr = QueryUtils.subUriForQueryVar(RANK_QUERY, "subject", subjectUri);
log.debug("Query string is: " + queryStr);
try {
ResultSet results = QueryUtils.getQueryResults(queryStr, vreq);
if (results != null && results.hasNext()) { // there is at most one result
log.debug("found a rank");
QuerySolution soln = results.next();
RDFNode node = soln.get("rank");
if (node != null && node.isLiteral()) {
log.debug("node value =" + node.asLiteral().getLexicalForm());
int rank = node.asLiteral().getInt(); // what if it's not an int? - what gets returned?
// node.asLiteral().getInt() won't return an xsd:string that
// can be parsed as an int.
int rank = Integer.parseInt(node.asLiteral().getLexicalForm());
if (rank > maxRank) {
log.debug("setting maxRank to " + rank);
maxRank = rank;
}
}
}
} catch (NumberFormatException e) {
log.error("Invalid rank returned from query: not an integer value.");
} catch (Exception e) {
log.error(e, e);
}
}
maxRank++;
%>
<c:choose>
@ -272,9 +277,11 @@ core:rank
<v:input type="text" label="Webpage Name" id="anchor" size="70"/>
<p><em>If left blank, the URL will be used when displaying a link to this webpage.</em></p>
<c:if test="${editMode == 'add'}">
<input type="hidden" name="rank" value="<%= maxRank %>" />
<input type="hidden" name="rank" value="<%= maxRank + 1 %>" />
</c:if>
<p class="submit"><v:input type="submit" id="submit" value="${submitButtonText}" cancel="true"/></p>
</form>
<jsp:include page="${postForm}"/>