2009/10/15 Bruce Grant <[email protected]> > Yes Alain, that is what interests me. It emulates what is already a key > part of other content management systems. Is there any shareable example > from the DAM source? Many thanks, Bruce. >
This is a teaser: (see attached files). For the rest of the DAM source code you will have to wait for the public release (no official date scheduled yet though) :) This example heavily relies upon ajax4jsf and the stateful query models of nuxeo. -- Olivier
search_filter.xhtml
Description: application/xhtml
/* * (C) Copyright 2006-2009 Nuxeo SAS (http://nuxeo.com/) and contributors. * * All rights reserved. This program and the accompanying materials * are made available under the terms of the GNU Lesser General Public License * (LGPL) version 2.1 which accompanies this distribution, and is available at * http://www.gnu.org/licenses/lgpl.html * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * Contributors: * Quentin Lamerand * * $Id$ */ package org.nuxeo.dam.webapp.filter; import static org.jboss.seam.ScopeType.CONVERSATION; import java.io.Serializable; import java.util.ArrayList; import java.util.Arrays; import java.util.List; import javax.faces.model.SelectItem; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.jboss.seam.ScopeType; import org.jboss.seam.annotations.Factory; import org.jboss.seam.annotations.In; import org.jboss.seam.annotations.Name; import org.jboss.seam.annotations.Observer; import org.jboss.seam.annotations.Scope; import org.jboss.seam.annotations.web.RequestParameter; import org.nuxeo.ecm.core.api.ClientException; import org.nuxeo.ecm.core.api.CoreSession; import org.nuxeo.ecm.core.api.DocumentModel; import org.nuxeo.ecm.core.api.PagedDocumentsProvider; import org.nuxeo.ecm.core.api.SortInfo; import org.nuxeo.ecm.core.search.api.client.querymodel.QueryModel; import org.nuxeo.ecm.core.search.api.client.querymodel.QueryModelService; import org.nuxeo.ecm.core.search.api.client.querymodel.descriptor.QueryModelDescriptor; import org.nuxeo.ecm.platform.ui.web.api.ResultsProviderFarm; import org.nuxeo.ecm.platform.ui.web.api.SortNotSupportedException; import org.nuxeo.ecm.platform.ui.web.pagination.ResultsProviderFarmUserException; import org.nuxeo.ecm.webapp.helpers.EventNames; import org.nuxeo.ecm.webapp.pagination.ResultsProvidersCache; import org.nuxeo.runtime.api.Framework; @Scope(CONVERSATION) @Name("filterActions") public class FilterActions implements Serializable, ResultsProviderFarm { private static final long serialVersionUID = 1L; @SuppressWarnings("unused") private static final Log log = LogFactory.getLog(FilterActions.class); public static final List<String> DAM_DOCUMENT_TYPES = Arrays.asList("File", "Picture", "Video", "Audio"); protected static final String QUERY_MODEL_NAME = "FILTERED_DOCUMENTS"; protected static final String DOCTYPE_FIELD_XPATH = "filter_query:ecm_primaryType"; @In(create = true, required = false) transient CoreSession documentManager; @In(create = true, required = false) transient ResultsProvidersCache resultsProvidersCache; @RequestParameter protected String docType; protected transient QueryModelService queryModelService; protected DocumentModel filterDocument; public DocumentModel getFilterDocument() throws ClientException { if (filterDocument == null) { QueryModelDescriptor descriptor; try { descriptor = getQueryModelDescriptor(QUERY_MODEL_NAME); } catch (Exception e) { throw new ClientException("Failed to get query model: " + QUERY_MODEL_NAME, e); } filterDocument = documentManager.createDocumentModel(descriptor .getDocType()); } return filterDocument; } @Factory(value = "docTypeSelectItems", scope = ScopeType.EVENT) public List<SelectItem> getDocTypeSelectItems() throws ClientException { DocumentModel filterDocument = getFilterDocument(); List<String> docTypeSelection = filterDocument.getProperty( DOCTYPE_FIELD_XPATH).getValue(List.class); List<SelectItem> items = new ArrayList<SelectItem>(); items.add(new SelectItem("All", "label.type.All", "", docTypeSelection .isEmpty())); for (String type : DAM_DOCUMENT_TYPES) { items.add(new SelectItem(type, "label.type." + type, "", docTypeSelection.contains(type))); } return items; } public void setFilterDocument(DocumentModel filterDocument) { this.filterDocument = filterDocument; } @SuppressWarnings("unchecked") public void toggleSelectDocType() throws ClientException { DocumentModel filterDocument = getFilterDocument(); List<String> previousSelection = filterDocument.getProperty( DOCTYPE_FIELD_XPATH).getValue(List.class); if ("All".equalsIgnoreCase(docType)) { previousSelection.clear(); } else { if (previousSelection.contains(docType)) { previousSelection.remove(docType); } else { previousSelection.add(docType); if (previousSelection.size() == DAM_DOCUMENT_TYPES.size()) { // back to empty selection which means no document type filtering: previousSelection.clear(); } } } filterDocument.setPropertyValue(DOCTYPE_FIELD_XPATH, (Serializable) previousSelection); invalidateProvider(); } public PagedDocumentsProvider getResultsProvider(String queryModelName) throws ClientException, ResultsProviderFarmUserException { try { return getResultsProvider(queryModelName, null); } catch (SortNotSupportedException e) { throw new ClientException("unexpected exception", e); } } public PagedDocumentsProvider getResultsProvider(String queryModelName, SortInfo sortInfo) throws ClientException, ResultsProviderFarmUserException { if (!QUERY_MODEL_NAME.equals(queryModelName)) { return null; } QueryModelDescriptor descriptor; try { descriptor = getQueryModelDescriptor(queryModelName); } catch (Exception e) { throw new ClientException("Failed to get query model: " + queryModelName, e); } QueryModel model = new QueryModel(descriptor, getFilterDocument()); if (!descriptor.isSortable() && sortInfo != null) { throw new SortNotSupportedException(); } PagedDocumentsProvider provider = model.getResultsProvider( documentManager, null, sortInfo); provider.setName(queryModelName); return provider; } @Observer(EventNames.QUERY_MODEL_CHANGED) public void queryModelChanged(QueryModel qm) { resultsProvidersCache.invalidate(qm.getDescriptor().getName()); } public void invalidateProvider() { resultsProvidersCache.invalidate(QUERY_MODEL_NAME); } protected QueryModelDescriptor getQueryModelDescriptor(String descriptorName) throws Exception { if (queryModelService == null) { queryModelService = (QueryModelService) Framework .getService(QueryModelService.class); } return queryModelService.getQueryModelDescriptor(descriptorName); } }
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