How to get all images in a folder programmatically?

[Eric Nguyen personal]

The idea is the site I'm building need to have galleries of photos e.g. a birthday party event would have a gallery.

This makes sense and is quite common in CMS world right?

Now I have a document type called Event.

For each event there is a link which points to a folder under Images.

How do I get all the images in such folder to display on my Event details page?

*Notes: I'm not using multiple image fields for my Event document type because I don't want my users to have to 10 times upload an image to achieve a gallery!

[Eric Nguyen personal]

I've found the XPath expression and I can correctly get the images under an image folder:

/jcr:root/content/gallery/scc/gallery1//element(*, hippo:handle)

I'm trying the following function in my bean class but I'm getting ClassCastException:

public List<HippoGalleryImageSet> getImages() {
 log.info("getImages");
 List<HippoGalleryImageSet> images = new ArrayList<HippoGalleryImageSet>();
 String expression = "/jcr:root/content/gallery/scc/gallery1//element(*, hippo:handle)";
 try {
 Session session = getNode().getSession();
 QueryManager queryManager = session.getWorkspace()
 .getQueryManager();
 String language = Query.XPATH;
 Query query = queryManager.createQuery(expression, language);
 QueryResult result = query.execute();
 NodeIterator nodes = result.getNodes();
 if (nodes.hasNext()) {
 javax.jcr.Node image = nodes.nextNode();
 log.info("image is "+image);
 images.add((HippoGalleryImageSet) image);
 }
 } catch (RepositoryException e) {
 log
 .error(
 "Failed to retrieve average rating for product document {}",
 getCanonicalHandleUUID(), e);
 }
 return images;
}

How can I get the HippoGalleryImageSet objects from the nodes I found under the same folder which are essentially images!

[Jeroen Hoffman]

Hi Eric,

IMO you shouldn't do queries like that. If you want a query, we provide HST
Query, see http://www.onehippo.org/library/concepts/search/hst-2-search.html

But in your case, the easiest way is get the linked folder and then iterate it's
contents, for example:

document.getLinkedBean("yournamspace:mirrorproperty",
HippoFolder.class).getDocuments(HippoGalleryImageSet.class);

There are other methods available too, the main idea is to use beans.

HTH
Jeroen

Eric Nguyen personal wrote on 03-03-2015 09:00:
> I've found the XPath expression and I can correctly get the images under an
> image folder:
>

> <https://lh6.googleusercontent.com/-nbO0xszcU1I/VPVqEnG-OWI/AAAAAAAADMI/WERWtlFuMGM/s1600/Screen%2BShot%2B2015-03-03%2Bat%2B3.58.57%2Bpm.png>

>
> |
> /jcr:root/content/gallery/scc/gallery1//element(*, hippo:handle)
> |
>
>
> I'm trying the following function in my bean class but I'm getting
> ClassCastException:
>
> |

> publicList<HippoGalleryImageSet>getImages(){

> log.info("getImages");
> List<HippoGalleryImageSet>images =newArrayList<HippoGalleryImageSet>();

> Stringexpression ="/jcr:root/content/gallery/scc/gallery1//element(*,

> For each event there is a link which points to a *folder* under *Images*.
>
>
> <https://lh4.googleusercontent.com/-BKeWZIotIKQ/VPUkLMRyBmI/AAAAAAAADLo/ANORDe2BHH4/s1600/Screen%2BShot%2B2015-03-03%2Bat%2B11.01.31%2Bam.png>
>
> <https://lh6.googleusercontent.com/-3zZcomnr9F4/VPUkbO_ojII/AAAAAAAADL4/jm4yezPaxzg/s1600/Screen%2BShot%2B2015-03-03%2Bat%2B10.58.16%2Bam.png>

>
>
>
>
> How do I get all the images in such folder to display on my Event details page?
>
> *Notes: I'm not using multiple image fields for my Event document type
> because I don't want my users to have to 10 times upload an image to achieve
> a gallery!
>

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[Eric Nguyen personal]

Thanks Jeoren, that looks like a good direction to go.

I've already achieved my goal using XPath by the following though :D

while (nodes.hasNext()) {
 javax.jcr.Node node = nodes.nextNode();

 HippoGalleryImageSet image = new HippoGalleryImageSet();
 image.setNode(node);

 images.add(image);
}

> <mailto:hippo-community+unsub...@googlegroups.com>.