CategoryBrowser.inc
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<?php
require_once("$default->fileSystemRoot/lib/security/permission.inc");
require_once("$default->fileSystemRoot/lib/users/User.inc");
require_once("$default->fileSystemRoot/lib/documentmanagement/Document.inc");
require_once("$default->fileSystemRoot/lib/foldermanagement/Folder.inc");
/**
*
* $Id$
*
* Contains document browsing business logic.
*
* Licensed under the GNU GPL. For full terms see the file COPYING.
*
* @version $Revision$
* @author Michael Joseph <michael@jamwarehouse.com>, Jam Warehouse (Pty) Ltd, South Africa
*
* @package lib.documentmanagement
*/
class CategoryBrowser extends Browser {
/**
* Construct a new FolderBrowser instance with the specified sort criteria
*
* @param string the field to sort the results by
* @param string the direction to sort the results
*/
function CategoryBrowser($sSortField = "name", $sSortDirection = "asc", $aNewSortCriteria = array()) {
Browser::Browser($sSortField, $sSortDirection, $aNewSortCriteria);
}
/**
* Browse the documents by category
*
* @return array categories and documents
*/
function browse() {
global $default, $fCategoryName;
// browsing by category
$this->setBrowseStart($fCategoryName);
$sCategoryName = $fCategoryName;
// TODO: add this to default inserts
$categoryField = "Category";
$results = array();
$sql = $default->db;
// lookup document_fields id for category
$categoryFieldID = lookupID($default->owl_fields_table, "name", "$categoryField");
$default->log->debug("CategoryBrowser::browse() categoryFieldID=$categoryFieldID");
if ($sCategoryName == "") {
$default->log->debug("CategoryBrowser::browse() no category supplied, returning list");
// no category value supplied, so return a list of categories
// set the first value to "categories"
$results["categories"][] = "Categories";
// get a list of category values
$query = "SELECT DISTINCT value FROM $default->owl_document_fields_table WHERE document_field_id=$categoryFieldID ORDER BY value " . ($this->sSortField == "name" ? $this->sSortDirection : "ASC");
$default->log->info("CategoryBrowser::browse() category listing query=$query; $this->sSortField");
$sql->query($query);
// loop through resultset, build array and return
while ($sql->next_record()) {
$results["categories"][] = $sql->f("value");
}
// its ok if we return an empty array- the UI's responsibility to check and print an error
return $results;
} else {
$aLookupCriteria = $this->aSortCriteria[$this->sSortField]["lookup"];
$results["categories"][] = $sCategoryName;
// we have a category to use, so find all the documents
// with this category value
$categoryQuery = "SELECT df.document_id FROM $default->owl_document_fields_table df " .
"INNER JOIN $default->owl_documents_table d ON df.document_id = d.id ";
if ( isset($aLookupCriteria) ) {
$categoryQuery .= "INNER JOIN " . $aLookupCriteria["table"] . " lt ON ";
$categoryQuery .= "d.$this->sSortField" . "=lt." . (isset($aLookupCriteria["joinColumn"]) ? $aLookupCriteria["joinColumn"] : "id");
}
$categoryQuery .= " WHERE df.document_field_id = $categoryFieldID AND value='$sCategoryName' " . (isset($aLookupCriteria["whereClause"]) ? "AND lt." . $aLookupCriteria["whereClause"] : "") . " ";;
if ( isset($aLookupCriteria) ) {
$categoryQuery .= "ORDER BY lt." . $aLookupCriteria["field"] . " $this->sSortDirection";
} else {
$categoryQuery .= "ORDER BY d.$this->sSortField $this->sSortDirection";
}
$default->log->debug("categoryQuery=$categoryQuery");
$sql->query($categoryQuery);
// loop through resultset and add to array
$results["accessDenied"] = false;
while ($sql->next_record()) {
// check permissions
if (Permission::userHasDocumentReadPermission($sql->f("document_id"))) {
$oDocument = & Document::get($sql->f("document_id"));
if ($oDocument->isLive()) {
$results["documents"][] = $oDocument;
}
} else {
$results["accessDenied"] = true;
}
}
return $results;
}
}
function getSectionName() {
return "Manage Categories";
}
}