Mercurial > dive4elements > river
changeset 5974:95cb104a871b
Add dc:iterate function
This function can be used to iterate over a collection setting
var to the current element.
Patch provided by Sascha Teichmann.
author | Andre Heinecke <aheinecke@intevation.de> |
---|---|
date | Fri, 10 May 2013 11:31:51 +0200 (2013-05-10) |
parents | 21581eacc1de |
children | 95b9e40bbad0 |
files | artifacts/src/main/java/org/dive4elements/river/artifacts/datacage/templating/Builder.java |
diffstat | 1 files changed, 54 insertions(+), 0 deletions(-) [+] |
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--- a/artifacts/src/main/java/org/dive4elements/river/artifacts/datacage/templating/Builder.java Fri May 10 13:26:34 2013 +0200 +++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/datacage/templating/Builder.java Fri May 10 11:31:51 2013 +0200 @@ -17,6 +17,8 @@ import java.util.ArrayDeque; import java.util.ArrayList; +import java.util.Arrays; +import java.util.Collection; import java.util.Collections; import java.util.Deque; import java.util.HashMap; @@ -457,6 +459,55 @@ : groupExprStack.peek(); } + protected void iterate(Node parent, Element current) + throws SQLException + { + log.debug("dc:iterate"); + String container = expand(current.getAttribute("container")); + String var = expand(current.getAttribute("var")).toUpperCase(); + + if (container.isEmpty()) { + log.warn("'container' not set."); + return; + } + + if (var.isEmpty()) { + log.warn("'var' not set."); + return; + } + + Object [] result = new Object[1]; + + log.debug("Foo"); + + if (frames.getStore(container, result)) { + Object c = result[0]; + if (c instanceof Object []) { + c = Arrays.asList((Object [])c); + } + if (c instanceof Collection) { + frames.enter(); + try { + Collection<?> col = (Collection<?>)c; + for (Object o: col) { + if (o instanceof String) { + o = ((String)o).toLowerCase(); + } + frames.put(var, o); + NodeList subs = current.getChildNodes(); + for (int i = 0, N = subs.getLength(); i < N; ++i) { + build(parent, subs.item(i)); + } + } + } + finally { + frames.leave(); + } + } + } + } + + /** * Kind of foreach over results of a statement within a context. */ @@ -838,6 +889,9 @@ else if ("for-each".equals(localName)) { foreach(parent, curr); } + else if ("iterate".equals(localName)) { + iterate(parent, curr); + } else if ("filter".equals(localName)) { filter(parent, curr); }