<?php
/**
 * XOOPS Kernel Class
 *
 * You may not change or alter any portion of this comment or credits
 * of supporting developers from this source code or any supporting source code
 * which is considered copyrighted (c) material of the original comment or credit authors.
 * This program 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.
 *
 * @copyright       The XOOPS Project http://sourceforge.net/projects/xoops/
 * @license         GNU GPL 2 (http://www.gnu.org/licenses/old-licenses/gpl-2.0.html)
 * @package         kernel
 * @since           2.0.0
 * @author          Kazumi Ono (AKA onokazu) http://www.myweb.ne.jp/, http://jp.xoops.org/
 * @version         $Id: comment.php 4941 2010-07-22 17:13:36Z beckmi $
 */
defined('XOOPS_ROOT_PATH') or die('Restricted access');

/**
 * A Comment
 *
 * @package     kernel
 *
 * @author        Kazumi Ono    <onokazu@xoops.org>
 * @copyright    copyright (c) 2000-2003 XOOPS.org
 */
class XoopsComment extends XoopsObject
{

    /**
     * Constructor
     **/
    function XoopsComment()
    {
        $this->XoopsObject();
        $this->initVar('com_id', XOBJ_DTYPE_INT, null, false);
        $this->initVar('com_pid', XOBJ_DTYPE_INT, 0, false);
        $this->initVar('com_modid', XOBJ_DTYPE_INT, null, false);
        $this->initVar('com_icon', XOBJ_DTYPE_OTHER, null, false);
        $this->initVar('com_title', XOBJ_DTYPE_TXTBOX, null, true, 255, true);
        $this->initVar('com_text', XOBJ_DTYPE_TXTAREA, null, true, null, true);
        $this->initVar('com_created', XOBJ_DTYPE_INT, 0, false);
        $this->initVar('com_modified', XOBJ_DTYPE_INT, 0, false);
        $this->initVar('com_uid', XOBJ_DTYPE_INT, 0, true);
        $this->initVar('com_ip', XOBJ_DTYPE_OTHER, null, false);
        $this->initVar('com_sig', XOBJ_DTYPE_INT, 0, false);
        $this->initVar('com_itemid', XOBJ_DTYPE_INT, 0, false);
        $this->initVar('com_rootid', XOBJ_DTYPE_INT, 0, false);
        $this->initVar('com_status', XOBJ_DTYPE_INT, 0, false);
        $this->initVar('com_exparams', XOBJ_DTYPE_OTHER, null, false, 255);
        $this->initVar('dohtml', XOBJ_DTYPE_INT, 0, false);
        $this->initVar('dosmiley', XOBJ_DTYPE_INT, 0, false);
        $this->initVar('doxcode', XOBJ_DTYPE_INT, 0, false);
        $this->initVar('doimage', XOBJ_DTYPE_INT, 0, false);
        $this->initVar('dobr', XOBJ_DTYPE_INT, 0, false);
    }

    /**
     * Returns Class Base Variable com_id
     */
    function id($format = 'N')
    {
        return $this->getVar('com_id', $format);
    }

    /**
     * Returns Class Base Variable com_id
     */
    function com_id($format = '')
    {
        return $this->getVar('com_id', $format);
    }

    /**
     * Returns Class Base Variable com_pid
     */
    function com_pid($format = '')
    {
        return $this->getVar('com_pid', $format);
    }

    /**
     * Returns Class Base Variable com_modid
     */
    function com_modid($format = '')
    {
        return $this->getVar('com_modid', $format);
    }

    /**
     * Returns Class Base Variable com_icon
     */
    function com_icon($format = '')
    {
        return $this->getVar('com_icon', $format);
    }

    /**
     * Returns Class Base Variable bid
     */
    function com_title($format = '')
    {
        return $this->getVar('com_title', $format);
    }

    /**
     * Returns Class Base Variable com_text
     */
    function com_text($format = '')
    {
        return $this->getVar('com_text', $format);
    }

    /**
     * Returns Class Base Variable com_created
     */
    function com_created($format = '')
    {
        return $this->getVar('com_created', $format);
    }

    /**
     * Returns Class Base Variable com_modified
     */
    function com_modified($format = ''){
        return $this->getVar('com_modified', $format);
    }

    /**
     * Returns Class Base Variable com_uid
     */
    function com_uid($format = '')
    {
        return $this->getVar('com_uid', $format);
    }

    /**
     * Returns Class Base Variable com_ip
     */
    function com_ip($format = '')
    {
        return $this->getVar('com_ip', $format);
    }

    /**
     * Returns Class Base Variable com_sig
     */
    function com_sig($format = '')
    {
        return $this->getVar('com_sig', $format);
    }

    /**
     * Returns Class Base Variable com_itemid
     */
    function com_itemid($format = '')
    {
        return $this->getVar('com_itemid', $format);
    }

    /**
     * Returns Class Base Variable com_rootid
     */
    function com_rootid($format = '')
    {
        return $this->getVar('com_rootid', $format);
    }

    /**
     * Returns Class Base Variable com_status
     */
    function com_status($format = '')
    {
        return $this->getVar('com_status', $format);
    }

    /**
     * Returns Class Base Variable com_exparams
     */
    function com_exparams($format = '')
    {
        return $this->getVar('com_exparams', $format);
    }

    /**
     * Returns Class Base Variable bid
     */
    function dohtml($format = '')
    {
        return $this->getVar('dohtml', $format);
    }

    /**
     * Returns Class Base Variable dosmiley
     */
    function dosmiley($format = '')
    {
        return $this->getVar('dosmiley', $format);
    }

    /**
     * Returns Class Base Variable doxcode
     */
    function doxcode($format = '')
    {
        return $this->getVar('doxcode', $format);
    }

    /**
     * Returns Class Base Variable doimage
     */
    function doimage($format = '')
    {
        return $this->getVar('doimage', $format);
    }

    /**
     * Returns Class Base Variable dobr
     */
    function dobr($format = '')
    {
        return $this->getVar('dobr', $format);
    }

    /**
     * Is this comment on the root level?
     *
     * @return  bool
     */
    function isRoot()
    {
        return ($this->getVar('com_id') == $this->getVar('com_rootid'));
    }
}

/**
 * XOOPS comment handler class.
 *
 * This class is responsible for providing data access mechanisms to the data source
 * of XOOPS comment class objects.
 *
 *
 * @package     kernel
 * @subpackage  comment
 *
 * @author        Kazumi Ono    <onokazu@xoops.org>
 * @copyright    copyright (c) 2000-2003 XOOPS.org
 */
class XoopsCommentHandler extends XoopsObjectHandler
{
    /**
     * Create a {@link XoopsComment}
     *
     * @param    bool    $isNew  Flag the object as "new"?
     *
     * @return    object
     */
    function &create($isNew = true)
    {
        $comment = new XoopsComment();
        if ($isNew) {
            $comment->setNew();
        }
        return $comment;
    }

    /**
     * Retrieve a {@link XoopsComment}
     *
     * @param   int $id ID
     *
     * @return  object  {@link XoopsComment}, FALSE on fail
     **/
    function &get($id)
    {
        $comment = false;
        $id = intval($id);
        if ($id > 0) {
            $sql = 'SELECT * FROM ' . $this->db->prefix('xoopscomments') . ' WHERE com_id=' . $id;
            if (!$result = $this->db->query($sql)) {
                return $comment;
            }
            $numrows = $this->db->getRowsNum($result);
            if ($numrows == 1) {
                $comment = new XoopsComment();
                $comment->assignVars($this->db->fetchArray($result));
            }
        }
        return $comment;
    }

    /**
     * Write a comment to database
     *
     * @param   object  &$comment
     *
     * @return  bool
     **/
    function insert(&$comment)
    {
        /**
         * @TODO: Change to if (!(class_exists($this->className) && $obj instanceof $this->className)) when going fully PHP5
         */
        if (!is_a($comment, 'xoopscomment')) {
            return false;
        }
        if (!$comment->isDirty()) {
            return true;
        }
        if (!$comment->cleanVars()) {
            return false;
        }
        foreach($comment->cleanVars as $k => $v) {
            ${$k} = $v;
        }
        if ($comment->isNew()) {
            $com_id = $this->db->genId('xoopscomments_com_id_seq');
            $sql = sprintf("INSERT INTO %s (com_id, com_pid, com_modid, com_icon, com_title, com_text, com_created, com_modified, com_uid, com_ip, com_sig, com_itemid, com_rootid, com_status, com_exparams, dohtml, dosmiley, doxcode, doimage, dobr) VALUES (%u, %u, %u, %s, %s, %s, %u, %u, %u, %s, %u, %u, %u, %u, %s, %u, %u, %u, %u, %u)", $this->db->prefix('xoopscomments'), $com_id, $com_pid, $com_modid, $this->db->quoteString($com_icon), $this->db->quoteString($com_title), $this->db->quoteString($com_text), $com_created, $com_modified, $com_uid, $this->db->quoteString($com_ip), $com_sig, $com_itemid, $com_rootid, $com_status, $this->db->quoteString($com_exparams), $dohtml, $dosmiley, $doxcode, $doimage, $dobr);
        } else {
            $sql = sprintf("UPDATE %s SET com_pid = %u, com_icon = %s, com_title = %s, com_text = %s, com_created = %u, com_modified = %u, com_uid = %u, com_ip = %s, com_sig = %u, com_itemid = %u, com_rootid = %u, com_status = %u, com_exparams = %s, dohtml = %u, dosmiley = %u, doxcode = %u, doimage = %u, dobr = %u WHERE com_id = %u", $this->db->prefix('xoopscomments'), $com_pid, $this->db->quoteString($com_icon), $this->db->quoteString($com_title), $this->db->quoteString($com_text), $com_created, $com_modified, $com_uid, $this->db->quoteString($com_ip), $com_sig, $com_itemid, $com_rootid, $com_status, $this->db->quoteString($com_exparams), $dohtml, $dosmiley, $doxcode, $doimage, $dobr, $com_id);
        }
        if (!$result = $this->db->query($sql)) {
            return false;
        }
        if (empty($com_id)) {
            $com_id = $this->db->getInsertId();
        }
        $comment->assignVar('com_id', $com_id);
        return true;
    }

    /**
     * Delete a {@link XoopsComment} from the database
     *
     * @param   object  &$comment
     *
     * @return  bool
     **/
    function delete(&$comment)
    {
        /**
         * @TODO: Change to if (!(class_exists($this->className) && $obj instanceof $this->className)) when going fully PHP5
         */
        if (!is_a($comment, 'xoopscomment')) {
            return false;
        }
        $sql = sprintf("DELETE FROM %s WHERE com_id = %u", $this->db->prefix('xoopscomments'), $comment->getVar('com_id'));
        if (!$result = $this->db->query($sql)) {
            return false;
        }
        return true;
    }

    /**
     * Get some {@link XoopsComment}s
     *
     * @param   object  $criteria
     * @param   bool    $id_as_key  Use IDs as keys into the array?
     *
     * @return  array   Array of {@link XoopsComment} objects
     **/
    function getObjects($criteria = null, $id_as_key = false)
    {
        $ret = array();
        $limit = $start = 0;
        $sql = 'SELECT * FROM ' . $this->db->prefix('xoopscomments');
        if (isset($criteria) && is_subclass_of($criteria, 'criteriaelement')) {
            $sql .= ' ' . $criteria->renderWhere();
            $sort = ($criteria->getSort() != '') ? $criteria->getSort() : 'com_id';
            $sql .= ' ORDER BY ' . $sort . ' ' . $criteria->getOrder();
            $limit = $criteria->getLimit();
            $start = $criteria->getStart();
        }
        $result = $this->db->query($sql, $limit, $start);
        if (!$result) {
            return $ret;
        }
        while ($myrow = $this->db->fetchArray($result)) {
            $comment = new XoopsComment();
            $comment->assignVars($myrow);
            if (!$id_as_key) {
                $ret[] =& $comment;
            } else {
                $ret[$myrow['com_id']] = & $comment;
            }
            unset($comment);
        }
        return $ret;
    }

    /**
     * Count Comments
     *
     * @param   object  $criteria   {@link CriteriaElement}
     *
     * @return  int     Count
     **/
    function getCount($criteria = null)
    {
        $sql = 'SELECT COUNT(*) FROM ' . $this->db->prefix('xoopscomments');
        if (isset($criteria) && is_subclass_of($criteria, 'criteriaelement')) {
            $sql .= ' ' . $criteria->renderWhere();
        }
        if (!$result = & $this->db->query($sql)) {
            return 0;
        }
        list ($count) = $this->db->fetchRow($result);
        return $count;
    }

    /**
     * Delete multiple comments
     *
     * @param   object  $criteria   {@link CriteriaElement}
     *
     * @return  bool
     **/
    function deleteAll($criteria = null)
    {
        $sql = 'DELETE FROM ' . $this->db->prefix('xoopscomments');
        if (isset($criteria) && is_subclass_of($criteria, 'criteriaelement')) {
            $sql .= ' ' . $criteria->renderWhere();
        }
        if (!$result = $this->db->query($sql)) {
            return false;
        }
        return true;
    }

    /**
     * Get a list of comments
     *
     * @param   object  $criteria   {@link CriteriaElement}
     *
     * @return  array   Array of raw database records
     **/
    function getList($criteria = null)
    {
        $comments = $this->getObjects($criteria, true);
        $ret = array();
        foreach(array_keys($comments) as $i) {
            $ret[$i] = $comments[$i]->getVar('com_title');
        }
        return $ret;
    }

    /**
     * Retrieves comments for an item
     *
     * @param   int     $module_id  Module ID
     * @param   int     $item_id    Item ID
     * @param   string  $order      Sort order
     * @param   int     $status     Status of the comment
     * @param   int     $limit      Max num of comments to retrieve
     * @param   int     $start      Start offset
     *
     * @return  array   Array of {@link XoopsComment} objects
     **/
    function getByItemId($module_id, $item_id, $order = null, $status = null, $limit = null, $start = 0)
    {
        $criteria = new CriteriaCompo(new Criteria('com_modid', intval($module_id)));
        $criteria->add(new Criteria('com_itemid', intval($item_id)));
        if (isset($status)) {
            $criteria->add(new Criteria('com_status', intval($status)));
        }
        if (isset($order)) {
            $criteria->setOrder($order);
        }
        if (isset($limit)) {
            $criteria->setLimit($limit);
            $criteria->setStart($start);
        }
        return $this->getObjects($criteria);
    }

    /**
     * Gets total number of comments for an item
     *
     * @param   int     $module_id  Module ID
     * @param   int     $item_id    Item ID
     * @param   int     $status     Status of the comment
     *
     * @return  array   Array of {@link XoopsComment} objects
     **/
    function getCountByItemId($module_id, $item_id, $status = null)
    {
        $criteria = new CriteriaCompo(new Criteria('com_modid', intval($module_id)));
        $criteria->add(new Criteria('com_itemid', intval($item_id)));
        if (isset($status)) {
            $criteria->add(new Criteria('com_status', intval($status)));
        }
        return $this->getCount($criteria);
    }

    /**
     * Get the top {@link XoopsComment}s
     *
     * @param   int     $module_id
     * @param   int     $item_id
     * @param   strint  $order
     * @param   int     $status
     *
     * @return  array   Array of {@link XoopsComment} objects
     **/
    function getTopComments($module_id, $item_id, $order, $status = null)
    {
        $criteria = new CriteriaCompo(new Criteria('com_modid', intval($module_id)));
        $criteria->add(new Criteria('com_itemid', intval($item_id)));
        $criteria->add(new Criteria('com_pid', 0));
        if (isset($status)) {
            $criteria->add(new Criteria('com_status', intval($status)));
        }
        $criteria->setOrder($order);
        return $this->getObjects($criteria);
    }

    /**
     * Retrieve a whole thread
     *
     * @param   int     $comment_rootid
     * @param   int     $comment_id
     * @param   int     $status
     *
     * @return  array   Array of {@link XoopsComment} objects
     **/
    function getThread($comment_rootid, $comment_id, $status = null)
    {
        $criteria = new CriteriaCompo(new Criteria('com_rootid', intval($comment_rootid)));
        $criteria->add(new Criteria('com_id', intval($comment_id), '>='));
        if (isset($status)) {
            $criteria->add(new Criteria('com_status', intval($status)));
        }
        return $this->getObjects($criteria);
    }

    /**
     * Update
     *
     * @param   object  &$comment       {@link XoopsComment} object
     * @param   string  $field_name     Name of the field
     * @param   mixed   $field_value    Value to write
     *
     * @return  bool
     **/
    function updateByField(&$comment, $field_name, $field_value)
    {
        $comment->unsetNew();
        $comment->setVar($field_name, $field_value);
        return $this->insert($comment);
    }

    /**
     * Delete all comments for one whole module
     *
     * @param   int $module_id  ID of the module
     * @return  bool
     **/
    function deleteByModule($module_id)
    {
        return $this->deleteAll(new Criteria('com_modid', intval($module_id)));
    }
}
?>