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https://issues.apache.org/jira/browse/OFBIZ-4580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13154475#comment-13154475
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Erwan de FERRIERES commented on OFBIZ-4580:
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Hi Paul,
thanks for the function. But in order to commit it to OFBiz, you need to attach
your code to the Jira issue, and accept the license.
Could you also add an use case ?
Cheers,
> Categories - calculated trails
> ------------------------------
>
> Key: OFBIZ-4580
> URL: https://issues.apache.org/jira/browse/OFBIZ-4580
> Project: OFBiz
> Issue Type: Improvement
> Reporter: Paul Piper
> Priority: Minor
>
> Hey folks,
> been a while since I contributed. I noticed that currently ofbiz misses a
> simple function to generate a category trail. Generating a trail, however, is
> often useful when generating breadcrums, facetted search results, and proper
> category trees in general. Hence I created the following as a timesaver:
> {code:title=getCategoryTrail|borderStyle=solid}
> public static List getCategoryTrail(String productCategoryId,DispatchContext
> dctx){
> GenericDelegator delegator = (GenericDelegator)
> dctx.getDelegator();
> List<String> trailElements = FastList.newInstance();
> trailElements.add(productCategoryId);
> String parentProductCategoryId = productCategoryId;
> while (UtilValidate.isNotEmpty(parentProductCategoryId)) {
> // find product category rollup
> try {
> List<EntityCondition> rolllupConds = FastList.newInstance();
>
> rolllupConds.add(EntityCondition.makeCondition("productCategoryId",
> parentProductCategoryId));
> rolllupConds.add(EntityUtil.getFilterByDateExpr());
> List<GenericValue> productCategoryRollups =
> delegator.findList("ProductCategoryRollup",
> EntityCondition.makeCondition(rolllupConds), null,
> UtilMisc.toList("-fromDate"), null, true);
> if (UtilValidate.isNotEmpty(productCategoryRollups)) {
> // add only categories that belong to the top category to
> trail
> for (GenericValue productCategoryRollup :
> productCategoryRollups) {
> String trailCategoryId =
> productCategoryRollup.getString("parentProductCategoryId");
> parentProductCategoryId = trailCategoryId;
> if (trailElements.contains(trailCategoryId)) {
> break;
> }else{
> trailElements.add(trailCategoryId);
> }
> }
> } else {
> parentProductCategoryId = null;
> }
> } catch (GenericEntityException e) {
> Debug.logError(e, "Cannot generate trail from product
> category", module);
> }
> }
> Collections.reverse(trailElements);
> return trailElements;
> }
> {code}
> I suggest to add this to the CategoryWorker.java
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