File: /home/nexper/www/67.225.167.226/public_html/crm/data/Link.php
<?php
if(!defined('sugarEntry') || !sugarEntry) die('Not A Valid Entry Point');
/*********************************************************************************
* SugarCRM is a customer relationship management program developed by
* SugarCRM, Inc. Copyright (C) 2004 - 2009 SugarCRM Inc.
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License version 3 as published by the
* Free Software Foundation with the addition of the following permission added
* to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK
* IN WHICH THE COPYRIGHT IS OWNED BY SUGARCRM, SUGARCRM DISCLAIMS THE WARRANTY
* OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
*
* 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. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, see http://www.gnu.org/licenses or write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*
* You can contact SugarCRM, Inc. headquarters at 10050 North Wolfe Road,
* SW2-130, Cupertino, CA 95014, USA. or at email address contact@sugarcrm.com.
*
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* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU General Public License version 3.
*
* In accordance with Section 7(b) of the GNU General Public License version 3,
* these Appropriate Legal Notices must retain the display of the "Powered by
* SugarCRM" logo. If the display of the logo is not reasonably feasible for
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********************************************************************************/
/*********************************************************************************
* Description: Defines the base class for new data type, Relationship, methods in the class will
* be used to manipulate relationship between object instances.
* Portions created by SugarCRM are Copyright (C) SugarCRM, Inc.
* All Rights Reserved.
* Contributor(s): ______________________________________..
********************************************************************************/
require_once('modules/Relationships/Relationship.php');
class Link {
/* Private variables.*/
var $_log;
var $_relationship_name; //relationship this attribute is tied to.
var $_bean; //stores a copy of the bean.
var $_relationship= '';
var $_bean_table_name;
var $_bean_key_name='id';
var $_db;
var $_swap_sides = false;
//if set to true role column will not be added to the filter criteria.
var $ignore_role_filter=false;
//if set to true distinct clause will be added to the select list.
var $add_distinct=false;
//value of this variable dictates the action to be taken when a duplicate relationship record is found.
//1-ignore,2-update,3-delete.
//var $when_dup_relationship_found=2; // deprecated - only used by Queues, which is also no longer used
// a value for duplicate variable is stored by the _relatinship_exists method.
var $_duplicate_key;
var $_duplicate_where;
/* Parameters:
* $_rel_name: use this relationship key.
* $_bean: reference of the bean that instantiated this class.
* $_fieldDef: vardef entry for the field.
* $_table_name: optional, fetch from the bean's table name property.
* $_key_name: optional, name of the primary key column for _table_name
*/
function Link($_rel_name, &$_bean, $fieldDef, $_table_name='', $_key_name=''){
$GLOBALS['log']->debug("Link Constructor, relationship name: ".$_rel_name);
$GLOBALS['log']->debug("Link Constructor, Table name: ".$_table_name);
$GLOBALS['log']->debug("Link Constructor, Key name: ".$_key_name);
$this->_relationship_name=$_rel_name;
$this->_bean=&$_bean;
$this->_relationship=new Relationship();
//$this->_relationship->retrieve_by_string_fields(array('relationship_name'=>$this->_relationship_name));
$this->_relationship->retrieve_by_name($this->_relationship_name);
$this->_db = DBManagerFactory::getInstance();
//Following behavior is tied to a property(ignore_role) value in the vardef. It alters the values of 2 properties, ignore_role_filter and add_distinct.
//the property values can be altered again before any requests are made.
if (!empty($fieldDef) && is_array($fieldDef)) {
if (array_key_exists('ignore_role', $fieldDef)) {
if ($fieldDef['ignore_role'] == true) {
$this->ignore_role_filter=true;
$this->add_distinct=true;
}
}
}
$this->_bean_table_name=(!empty($_table_name)) ? $_table_name : $_bean->table_name;
if (!empty($key_name)) {
$this->_bean_key_name=$_key_name;
} else {
if ($this->_relationship->lhs_table != $this->_relationship->rhs_table) {
if ($_bean->table_name == $this->_relationship->lhs_table)
$this->_bean_key_name=$this->_relationship->lhs_key;
if ($_bean->table_name == $this->_relationship->rhs_table)
$this->_bean_key_name=$this->_relationship->rhs_key;
}
}
if ($this->_relationship->lhs_table == $this->_relationship->rhs_table && isset($fieldDef['side'])){
//for list views, we are coming from the right hand side, so do not flip
if (isset($_REQUEST['action']) && $_REQUEST['action'] != "index" && $_REQUEST['action'] != "listView" && $_REQUEST['action'] != "MassUpdate")
{
if ($fieldDef['side'] == 'right')
{
$this->_swap_sides = true;
}
}
//for list views, we are coming from the right hand side, so flip for LHS self relationships (only accounts member_of for now)
else if ($fieldDef['side'] == 'left')
{
$this->_swap_sides = true;
}
}
//default to id if not set.
if (empty($this->_bean_key_name))$this->_bean_key_name='id';
$GLOBALS['log']->debug("Link Constructor, _bean_table_name: ".$this->_bean_table_name);
$GLOBALS['log']->debug("Link Constructor, _bean_key_name: ".$this->_bean_key_name);
if (!empty($this->_relationship->id)) $GLOBALS['log']->debug("Link Constructor, relationship record found.");
else $GLOBALS['log']->debug("Link Constructor, No relationship record.") ;
}
/* This method will return the following based on cardinality of the relationship.
* one-to-many, many-to-many: empty array if not data is found else arry of keys.
* many-to-one, one-to-one: null if no linked data is found, else key value.
*
* For a self referencing relationship the function will behave as if the user is trying
* to access the child records. To get to the parent records use the getParent() method.
*/
function get() {
$query = $this->getQuery();
$result = $this->_db->query($query, true);
$list = Array();
while($row = $this->_db->fetchByAssoc($result))
{
$list[] = $row['id'];
}
return $list;
}
function getRelatedTableName() {
$bean_is_lhs=$this->_get_bean_position();
if (!isset($bean_is_lhs)) {
$GLOBALS['log']->debug("Invalid relationship parameters. Exiting..");
return null;
}
if ($bean_is_lhs) {
return $this->_relationship->rhs_table;
} else {
return $this->_relationship->lhs_table;
}
}
function getRelatedModuleName() {
$bean_is_lhs=$this->_get_bean_position();
if (!isset($bean_is_lhs)) {
$GLOBALS['log']->debug("Invalid relationship parameters. Exiting..");
return null;
}
if ($bean_is_lhs) {
return $this->_relationship->rhs_module;
} else {
return $this->_relationship->lhs_module;
}
}
function _get_bean_position() {
//current beans module and table are on the left side or the right side.
$position = false;
if ($this->_relationship->lhs_table == $this->_bean_table_name && $this->_relationship->lhs_key == $this->_bean_key_name) {
$position = true;
}
if ($this->_relationship->rhs_table == $this->_bean_table_name && $this->_relationship->rhs_key == $this->_bean_key_name) {
$position = false;
}
if($this->_swap_sides){
return !$position;
}
return $position;
}
function _is_self_relationship() {
if ($this->_relationship->lhs_table == $this->_relationship->rhs_table) {
return true;
}
return false;
}
function getJoin($params, $return_array =false)
{
$join_type= ' INNER JOIN ';
if(isset($params['join_type'])){
$join_type = $params['join_type'];
}
$id = -1;
$join = '';
$bean_is_lhs=$this->_get_bean_position();
if ($this->_relationship->relationship_type=='one-to-one' or $this->_relationship->relationship_type=='many-to-one' or
($this->_relationship->relationship_type=='one-to-many' && !$bean_is_lhs))
{
if ($bean_is_lhs) {
$table = $this->_relationship->rhs_table;
$key = $this->_relationship->rhs_key;
// check right table alias
$other_table = (empty($params['left_join_table_alias']) ? $this->_relationship->lhs_table : $params['left_join_table_alias']);
$other_key = $this->_relationship->lhs_key;
} else {
$key = $this->_relationship->lhs_key;
$table = $this->_relationship->lhs_table;
if ( ! empty($params['join_table_alias']))
{
$table_with_alias = $table. " ".$params['join_table_alias'];
$table = $params['join_table_alias'];
}
$other_table = (empty($params['right_join_table_alias']) ? $this->_relationship->rhs_table : $params['right_join_table_alias']);
$other_key = $this->_relationship->rhs_key;
}
$join = $join_type . ' '. $table_with_alias . " ON\n".$table.'.'.$key.'= '.$other_table.'.'.$other_key ." AND ". $table.".deleted=0\n";
}
if ($this->_relationship->relationship_type == 'one-to-many' && $bean_is_lhs) {
$table = $this->_relationship->rhs_table;
$key = $this->_relationship->rhs_key;
$other_table = (empty($params['left_join_table_alias']) ? $this->_relationship->lhs_table : $params['left_join_table_alias']);
$other_key = $this->_relationship->lhs_key;
if ( ! empty($params['join_table_alias']))
{
$table_with_alias = $table. " ".$params['join_table_alias'];
$table = $params['join_table_alias'];
}
$join = $join_type . ' '.$table_with_alias . " ON\n".$table.'.'.$key.'= '.$other_table.'.'.$other_key ." AND ". $table.".deleted=0\n";
}
if ($this->_relationship->relationship_type=='many-to-many' )
{
if ( ! empty($params['join_table_alias']))
{
$table_with_alias = $this->_relationship->join_table. " ".$params['join_table_alias'];
$table = $params['join_table_alias'];
$rel_table_with_alias =
$this->_relationship->join_table. " ".
$params['join_table_link_alias'];
$rel_table = $params['join_table_link_alias'];
}
if ( $bean_is_lhs )
{
$other_table = (empty($params['left_join_table_alias']) ? $this->_relationship->lhs_table : $params['left_join_table_alias']);
$join .= $join_type . ' '.$rel_table_with_alias.' ON '.$other_table.".".$this->_relationship->lhs_key."=".$rel_table.".".$this->_relationship->join_key_lhs." AND ".$rel_table.".deleted=0\n";
} else
{
$other_table = (empty($params['right_join_table_alias']) ? $this->_relationship->rhs_table : $params['right_join_table_alias']);
$join .= $join_type . ' '.$rel_table_with_alias.' ON '.$other_table.".".$this->_relationship->rhs_key."=".$rel_table.".".$this->_relationship->join_key_rhs." AND ".$rel_table.".deleted=0\n";
}
if (!empty($this->_relationship->relationship_role_column) && !$this->ignore_role_filter)
{
$join.=" AND ".$rel_table.'.'.$this->_relationship->relationship_role_column;
//role column value.
if (empty($this->_relationship->relationship_role_column_value))
{
$join.=' IS NULL';
} else {
$join.= "='".$this->_relationship->relationship_role_column_value."'";
}
$join.= "\n";
}
if ( ! empty($params['join_table_alias']))
{
if ( $bean_is_lhs )
{
$table_with_alias = $this->_relationship->rhs_table. " ".$params['join_table_alias'];
} else {
$table_with_alias = $this->_relationship->lhs_table. " ".$params['join_table_alias'];
}
$table = $params['join_table_alias'];
}
if ( $bean_is_lhs )
{
$join .= $join_type . ' '.$table_with_alias.' ON '.$table.".".$this->_relationship->lhs_key."=".$rel_table.".".$this->_relationship->join_key_rhs." AND ".$table.".deleted=0";
} else {
$join .= $join_type . ' '.$table_with_alias.' ON '.$table.".".$this->_relationship->rhs_key."=".$rel_table.".".$this->_relationship->join_key_lhs." AND ".$table.".deleted=0";
}
$join.= "\n";
}
if($return_array){
$ret_arr = array();
$ret_arr['join'] = $join;
$ret_arr['type'] = $this->_relationship->relationship_type;
if ( $bean_is_lhs ){
$ret_arr['rel_key'] = $this->_relationship->join_key_rhs;
}else{
$ret_arr['rel_key'] = $this->_relationship->join_key_lhs;
}
return $ret_arr;
}
return $join;
}
function _add_deleted_clause($deleted=0,$add_and='',$prefix='') {
if (!empty($prefix)) $prefix.='.';
if (!empty($add_and)) $add_and=' '.$add_and.' ';
if ($deleted==0) return $add_and.$prefix.'deleted=0';
if ($deleted==1) return $add_and.$prefix.'deleted=1';
else return '';
}
function _add_optional_where_clause($optional_array, $add_and='',$prefix='') {
if (!empty($prefix)) $prefix.='.';
if (!empty($add_and)) $add_and=' '.$add_and.' ';
if(!empty($optional_array)){
return $add_and.$prefix."".$optional_array['lhs_field']."".$optional_array['operator']."'".$optional_array['rhs_value']."'";
}
return '';
//end function _add_optional_where_clause
}
function getQuery($return_as_array=false, $sort_array = array(),$deleted=0, $optional_where="", $return_join = false, $bean_filter="", $for_subpanels = false) {
$select='';
$from='';
$join = '';
$where='';
$join_tables = array();
$bean_is_lhs=$this->_get_bean_position();
if (!isset($bean_is_lhs)) {
$GLOBALS['log']->debug("Invalid relationship parameters. Exiting..");
return null;
}
if (empty($bean_filter)) {
$bean_filter="= '".$this->_bean->id."'";
}
$GLOBALS['log']->debug("getQuery, Bean is LHS: ".$bean_is_lhs);
$GLOBALS['log']->debug("getQuery, Relationship type=".$this->_relationship->relationship_type);
$GLOBALS['log']->debug("getQuery, Relationship role column name=".$this->_relationship->relationship_role_column);
if ($this->_relationship->relationship_type=='one-to-one' or $this->_relationship->relationship_type=='many-to-one' or
($this->_relationship->relationship_type=='one-to-many' && !$bean_is_lhs)) {
$GLOBALS['log']->debug("Processing one-to-one,many-to-one,one-to-many.");
if ($this->add_distinct) {
$select='SELECT DISTINCT id';
} else {
$select='SELECT id';
}
if ($bean_is_lhs) {
$from= 'FROM '.$this->_relationship->rhs_table;
$where='WHERE '.$this->_relationship->rhs_table.'.'.$this->_relationship->rhs_key.$bean_filter;
if (!empty($this->_relationship->relationship_role_column) && !$this->ignore_role_filter) {
$where.=" AND ".$this->_relationship->rhs_table.'.'.$this->_relationship->relationship_role_column;
//role column value.
if (empty($this->_relationship->relationship_role_column_value)) {
$where.=' IS NULL';
} else {
$where.= "='".$this->_relationship->relationship_role_column_value."'";
}
}
//add deleted clause - but not if we're dealing with a Custom table which will lack the 'deleted' field
if(substr_count($this->_relationship->rhs_table, '_cstm') == 0)
$where.=$this->_add_deleted_clause($deleted,'AND',$this->_relationship->rhs_table );
if($optional_where!=""){
//process optional where
$where.=$this->_add_optional_where_clause($optional_where,'AND');
}
}
else {
$from= 'FROM '.$this->_relationship->lhs_table;
$where='WHERE '.$this->_relationship->lhs_table.'.'.$this->_relationship->lhs_key."= '".$this->_bean->{$this->_relationship->rhs_key}."'";
//added deleted clause.
$where.=$this->_add_deleted_clause($deleted,'AND', $this->_relationship->lhs_table);
if($optional_where!=""){
//process optional where
$where.=$this->_add_optional_where_clause($optional_where,'AND');
}
}
}
if ($this->_relationship->relationship_type == 'one-to-many' && $bean_is_lhs) {
$GLOBALS['log']->debug("Processing one-to-many.");
if ($this->add_distinct) {
$select='SELECT DISTINCT '.$this->_relationship->rhs_table.'.id';
} else {
$select='SELECT '.$this->_relationship->rhs_table.'.id';
}
$from= 'FROM '.$this->_relationship->rhs_table;
$where='WHERE '.$this->_relationship->rhs_table.'.'.$this->_relationship->rhs_key.$bean_filter;
if (!empty($this->_relationship->relationship_role_column) && !$this->ignore_role_filter) {
$where.=" AND ".$this->_relationship->rhs_table.'.'.$this->_relationship->relationship_role_column;
//role column value.
if (empty($this->_relationship->relationship_role_column_value)) {
$where.=' IS NULL';
} else {
$where.= "='".$this->_relationship->relationship_role_column_value."'";
}
}
//add deleted clause - but not if we're dealing with a Custom table which will lack the 'deleted' field
if(substr_count($this->_relationship->rhs_table, '_cstm') == 0)
$where.=$this->_add_deleted_clause($deleted,'AND',$this->_relationship->rhs_table);
if($optional_where!=""){
//process optional where
$where.=$this->_add_optional_where_clause($optional_where,'AND');
}
}
if ($this->_relationship->relationship_type=='many-to-many' ) {
$GLOBALS['log']->debug("Processing many-to-many.");
$swap = !$for_subpanels && $this->_swap_sides;
if (($bean_is_lhs && !$swap) || (!$bean_is_lhs && $swap)) {
if ($this->add_distinct) {
$select="SELECT DISTINCT ".$this->_relationship->rhs_table.".id";
} else {
$select="SELECT ".$this->_relationship->rhs_table.".id";
}
$from= 'FROM '.$this->_relationship->rhs_table;
$subjoin=' INNER JOIN '.$this->_relationship->join_table.' ON ('
.$this->_relationship->rhs_table.".".$this->_relationship->rhs_key."="
.$this->_relationship->join_table.".".$this->_relationship->join_key_rhs." AND "
.$this->_relationship->join_table.".".$this->_relationship->join_key_lhs.$bean_filter;
$join_tables[] = $this->_relationship->join_table;
if (!empty($this->_relationship->relationship_role_column) && !$this->ignore_role_filter) {
$subjoin.=" AND ".$this->_relationship->join_table.'.'.$this->_relationship->relationship_role_column;
//role column value.
if (empty($this->_relationship->relationship_role_column_value)) {
$subjoin.=' IS NULL';
} else {
$subjoin.= "='".$this->_relationship->relationship_role_column_value."'";
}
}
$subjoin.=')';
$join .= $subjoin;
$from .= $subjoin;
//add deleted clause.
if ($deleted == 0 or $deleted==1) {
$where.=' WHERE '.$this->_add_deleted_clause($deleted,'',$this->_relationship->join_table).$this->_add_deleted_clause($deleted,'AND',$this->_relationship->rhs_table);
}
if($optional_where!=""){
//process optional where
$where.=$this->_add_optional_where_clause($optional_where,'AND', $this->_relationship->rhs_table);
}
}
else {
if ($this->add_distinct) {
$select="SELECT DISTINCT ".$this->_relationship->lhs_table.".id";
} else {
$select="SELECT ".$this->_relationship->lhs_table.".id";
}
$from= 'FROM '.$this->_relationship->lhs_table;
$subjoin=' INNER JOIN '.$this->_relationship->join_table.' ON ('.$this->_relationship->lhs_table.".".$this->_relationship->lhs_key."=".$this->_relationship->join_table.".".$this->_relationship->join_key_lhs." AND ".$this->_relationship->join_table.".".$this->_relationship->join_key_rhs.$bean_filter;
$join_tables[] = $this->_relationship->join_table;
if (!empty($this->_relationship->relationship_role_column) && !$this->ignore_role_filter) {
$subjoin.=" AND ".$this->_relationship->relationship_role_column;
//role column value.
if (empty($this->_relationship->relationship_role_column_value)) {
$subjoin.=' IS NULL';
} else {
$subjoin.= "='".$this->_relationship->relationship_role_column_value."'";
}
}
$subjoin.=')';
$join .= $subjoin;
$from .= $subjoin;
//add deleted clause.
if ($deleted == 0 or $deleted==1) {
$where.=' WHERE '.$this->_add_deleted_clause($deleted,'',$this->_relationship->join_table).$this->_add_deleted_clause($deleted,'AND',$this->_relationship->lhs_table);
}
if($optional_where!=""){
//process optional where
$where.=$this->_add_optional_where_clause($optional_where,'AND', $this->_relationship->lhs_table);
}
}
}
if ($return_as_array) {
$query_as_array['select']=$select;
$query_as_array['from']=$from;
$query_as_array['where']=$where;
if($return_join){
$query_as_array['join'] = $join;
$query_as_array['join_tables'] = $join_tables;
}
return $query_as_array;
}
else {
$query = $select.' '.$from.' '.$where;
$GLOBALS['log']->debug("Link Query=".$query);
return $query;
}
}
function getBeans($template, $sort_array = array(), $begin_index = 0, $end_index = -1, $deleted=0, $optional_where="") {
$query = $this->getQuery(false,array(), $deleted, $optional_where); //get array of IDs
return $this->_bean->build_related_list($query, $template);
}
function _add_one_to_many_table_based($key,$bean_is_lhs) {
if ($bean_is_lhs) {
$set_key_value=$this->_bean->id;
$where_key_value=$key;
}
else {
$set_key_value=$key;
$where_key_value=$this->_bean->id;
}
$query= 'UPDATE '.$this->_relationship->rhs_table;
$query.=' SET '.$this->_relationship->rhs_table.'.'.$this->_relationship->rhs_key."='".$set_key_value."'";
//add role column to the query.
if (!empty($this->_relationship->relationship_role_column)) {
$query.=' ,'.$this->_relationship->relationship_role_column."='".$this->_relationship->relationship_role_column_value."'";
}
$query.=' WHERE '.$this->_relationship->rhs_table.".id='".$where_key_value."'";
$GLOBALS['log']->debug("Relationship Query ".$query);
$result=$this->_db->query($query, true);
}
/* handles many to one*/
function _add_many_to_one_bean_based($key) {
//make a copy of this bean to avoid recursion.
$bean=new $this->_bean->object_name;
$bean->retrieve($this->_bean->id);
$bean->{$this->_relationship->lhs_key}=$key;
//set relationship role.
if (!empty($this->_relationship->relationship_role_column)) {
$bean->{$this->_relationship->relationship_role_column}=$this->_relationship->relationship_role_column_value;
}
$bean->save();
}
/* use this function to create link between 2 objects
* 1:1 will be treated like 1 to many.
* todo handle self referencing relationships
* the function also allows for setting of values for additional field in the table being
* updated to save the relationship, in case of many-to-many relationships this would be the join table.
* the values should be passed as key value pairs with column name as the key name and column value as key value.
*/
function add($rel_keys,$additional_values=array()) {
if (!isset($rel_keys) or empty($rel_keys)) {
$GLOBALS['log']->debug("Link.add, Null key passed, no-op, returning... ");
return;
}
if (!is_array($rel_keys)) {
$keys[]=$rel_keys;
} else {
$keys=$rel_keys;
}
$bean_is_lhs=$this->_get_bean_position();
if (!isset($bean_is_lhs)) {
$GLOBALS['log']->debug("Invalid relationship parameters. Exiting..");
return null;
}
//if multiple keys are passed then check for unsupported relationship types.
if (count($keys) > 1) {
if (($this->_relationship->relationship_type == 'one-to-one')
or ($this->_relationship->relationship_type == 'one-to-many' and !$bean_is_lhs)
or ($this->_relationship->relationship_type == 'many-to-one')) {
$GLOBALS['log']->error("Invalid parameters passed to function, the relationship does not support addition of multiple records.");
return;
}
}
$GLOBALS['log']->debug("Relationship type = {$this->_relationship->relationship_type}");
foreach($keys as $key) {
//fetch the related record using the key and update.
if ($this->_relationship->relationship_type=='one-to-one' or $this->_relationship->relationship_type == 'one-to-many') {
$this->_add_one_to_many_table_based($key,$bean_is_lhs);
}
//updates the bean passed to the instance....
//todo remove this case.
if ($this->_relationship->relationship_type=='many-to-one') {
$this->_add_many_to_one_bean_based($key);
}
//insert record in the link table.
if ($this->_relationship->relationship_type=='many-to-many' ) {
//Swap the bean positions for self relationships not coming from subpanels.
//such as one-to-many relationship fields generated in studio/MB
$swap = !isset($_REQUEST['subpanel_id']) && $this->_swap_sides;
//add keys from the 2 tables to the additional keys array..
if (($bean_is_lhs && !$swap) || (!$bean_is_lhs && $swap)) {
$additional_values[$this->_relationship->join_key_lhs]=$this->_bean->id;
$additional_values[$this->_relationship->join_key_rhs]=$key;
} else {
$additional_values[$this->_relationship->join_key_rhs]=$this->_bean->id;
$additional_values[$this->_relationship->join_key_lhs]=$key;
}
//add the role condition.
if (!empty($this->_relationship->relationship_role_column) && !empty($this->_relationship->relationship_role_column_value)) {
$additional_values[$this->_relationship->relationship_role_column]=$this->_relationship->relationship_role_column_value;
}
//add deleted condition.
$additional_values['deleted']=0;
$this->_add_many_to_many($additional_values);
//reverse will be set to true only for self-referencing many-to-many relationships.
if ($this->_is_self_relationship() && !empty($GLOBALS['dictionary'][$this->_relationship_name]) &&
!empty($GLOBALS['dictionary'][$this->_relationship_name]['true_relationship_type']) &&
$GLOBALS['dictionary'][$this->_relationship_name]['true_relationship_type'] == 'many-to-many' ||
(!empty($this->_relationship->reverse) && $this->_relationship->reverse == true )){
//swap key values;
$temp=$additional_values[$this->_relationship->join_key_lhs];
$additional_values[$this->_relationship->join_key_lhs]=$additional_values[$this->_relationship->join_key_rhs];
$additional_values[$this->_relationship->join_key_rhs]=$temp;
$this->_add_many_to_many($additional_values);
}
}
}
}
function _add_many_to_many($add_values) {
//add date modified.
$add_values['date_modified']= gmdate($GLOBALS['timedate']->get_db_date_time_format(), time());
//check whether duplicate exist or not.
if ($this->relationship_exists($this->_relationship->join_table,$add_values)) {
/* switch($this->when_dup_relationship_found) {
case 1: //do nothing.
$GLOBALS['log']->debug("Executing default option, no action.");
break;
case 3: //delete the record first, then create a new entry.
$this->_delete_row($this->_relationship->join_table,$this->_duplicate_key);
$this->_insert_row($add_values);
break;
default:
case 2: //update the record.
*/ $this->_update_row($add_values,$this->_relationship->join_table,$this->_duplicate_where);
/* break;
}*/
} else {
$this->_insert_row($add_values);
}
}
function _delete_row($table_name,$key) {
$query='UPDATE '.$table_name." SET deleted=1, date_modified=" .gmdate($GLOBALS['timedate']->get_db_date_time_format(), time())."' WHERE id='".$key."'";
$GLOBALS['log']->debug("Relationship Delete Statement :".$query);
$result=$this->_db->query($query, true);
}
function _update_row(&$value_array,$table_name,$where) {
$query='UPDATE '.$table_name.' SET ';
$delimiter='';
foreach ($value_array as $key=>$value) {
$query.=$delimiter.$key."='".$value."' ";
$delimiter=",";
}
$query.=$where;
$GLOBALS['log']->debug("Relationship Update Statement :".$query);
$result=$this->_db->query($query, true);
}
function _insert_row(&$value_array) {
//add key column
$value_array['id']= create_guid();
$columns_list='';
$values_list='';
$delimiter='';
foreach ($value_array as $key=>$value) {
$columns_list.=$delimiter.$key;
$values_list .=$delimiter."'".$value."'";
$delimiter=",";
}
$insert_string='INSERT into '.$this->_relationship->join_table.' ('.$columns_list.') VALUES ('.$values_list.')';
$GLOBALS['log']->debug("Relationship Insert String :".$insert_string);
$result=$this->_db->query($insert_string, true);
}
/* this method operates on all related record, takes action based on cardinality of the relationship.
* one-to-one, one-to-many: update the rhs table's parent id with null
* many-to-one: update the lhs table's parent-id with null.
* many-to-many: delete rows from the link table. related table must have delted and date_modified column.
* if related_is is null, the methods assumes that the parent bean (whose id is passed) is being deleted.
* if both id and related_id are passed the metod unlinks a single relationship.
* parameters: id of the bean being deleted.
*
*/
function delete($id,$related_id='') {
$GLOBALS['log']->debug(sprintf("delete called with these parameter values. id=%s, related_id=%s",$id,$related_id));
$_relationship=&$this->_relationship;
$_bean=&$this->_bean;
$bean_is_lhs=$this->_get_bean_position();
if (!isset($bean_is_lhs)) {
$GLOBALS['log']->debug("Invalid relationship parameters. Exiting..");
return null;
}
if ($_relationship->relationship_type=='one-to-many' or $_relationship->relationship_type=='one-to-one' ) {
if ($bean_is_lhs) {
//update rhs_table set rhs_key = null, relation_column_name = null where rhs_key= this_bean_id
$query='UPDATE '.$_relationship->rhs_table.' SET '.$_relationship->rhs_key."=NULL, date_modified='".gmdate($GLOBALS['timedate']->get_db_date_time_format(), time())."'";
if (!empty($_relationship->relationship_role_column) && !empty($_relationship->relationship_role_column_value)) {
$query.=','.$_relationship->relationship_role_column."= NULL ";
$query.=' WHERE '.$_relationship->relationship_role_column."= '".$_relationship->relationship_role_column_value."' AND ";
} else {
$query.=' WHERE ';
}
$query.=$_relationship->rhs_key."= '".$id."' ";
//restrict to one row if related_id is passed.
if (!empty($related_id)) {
$query.=" AND ".$_relationship->rhs_table.".id='".$related_id."'";
}
}
else {
//do nothing because the row that stores the relationship keys is being deleted.
//todo log an error message here.
//if this is the case and related_id is passed then log a message asking the user
//to clear the relationship using the bean.
}
}
if ($_relationship->relationship_type=='many-to-one') {
//do nothing because the row that stores the relationship keys is being deleted.
//todo log an error message here.
//if this is the case and related_id is passed then log a message asking the user
//to clear the relationship using the bean.
}
if ($_relationship->relationship_type=='many-to-many' ) {
$query='UPDATE '.$_relationship->join_table." SET deleted=1, date_modified='".gmdate($GLOBALS['timedate']->get_db_date_time_format(), time())."'";
if ($bean_is_lhs) {
if (!empty($this->_relationship->reverse) && ($this->_relationship->reverse == true or $this->_relationship->reverse == 1)){
if (empty($related_id)) {
$query.=" WHERE (".$_relationship->join_key_lhs."= '". $id ."' or ".$_relationship->join_key_rhs."='". $id ."')" ;
} else {
$query.=" WHERE (".$_relationship->join_key_lhs."= '". $id ."' AND ".$_relationship->join_key_rhs."='".$related_id."') OR (".$_relationship->join_key_rhs."='". $id ."' AND ".$_relationship->join_key_lhs."='".$related_id."')";
}
} else {
if (empty($related_id)) {
$query.=" WHERE ".$_relationship->join_key_lhs."= '". $id ."'";
} else {
$query.=" WHERE ".$_relationship->join_key_lhs."= '". $id ."' AND ".$_relationship->join_key_rhs."= '". $related_id."'";
}
}
} else {
if (!empty($this->_relationship->reverse) && ($this->_relationship->reverse == true or $this->_relationship->reverse == 1)) {
if (empty($related_id)) {
$query.=" WHERE (".$_relationship->join_key_rhs."= '". $id ."' or ".$_relationship->join_key_lhs."='". $id ."')" ;
} else {
$query.=" WHERE (".$_relationship->join_key_rhs."= '". $id ."' AND ".$_relationship->join_key_lhs."='".$related_id."') OR (".$_relationship->join_key_lhs."='". $id ."' AND ".$_relationship->join_key_rhs."='".$related_id."')";
}
} else {
if (empty($related_id)) {
$query.=" WHERE ".$_relationship->join_key_rhs."= '". $id ."'" ;
} else {
$query.=" WHERE ".$_relationship->join_key_rhs."= '". $id ."' AND ".$_relationship->join_key_lhs."= '". $related_id."'" ;
}
}
if (!empty($_relationship->relationship_role_column) && !empty($_relationship->relationship_role_column_value)) {
$query.=' AND '.$_relationship->relationship_role_column."= '".$_relationship->relationship_role_column_value."'";
}
}
}
//if query string is not empty execute it.
if (isset($query)) {
$GLOBALS['log']->debug('Link.Delete:Delete Query: '.$query);
$this->_db->query($query,true);
}
}
function relationship_exists($table_name, $join_key_values) {
//find the key values for the table.
$dup_keys=$this->_get_alternate_key_fields($table_name);
if (empty($dup_keys)) {
$GLOBALS['log']->debug("No alternate key define, skipping duplicate check..");
return false;
}
$delimiter='';
$this->_duplicate_where=' WHERE ';
foreach ($dup_keys as $field) {
//look for key in $join_key_values, if found add to filter criteria else abort duplicate checking.
if (isset($join_key_values[$field])) {
$this->_duplicate_where .= $delimiter.' '.$field."='".$join_key_values[$field]."'";
$delimiter='AND';
} else {
$GLOBALS['log']->error('Duplicate checking aborted, Please supply a value for this column '.$field);
return false;
}
}
//add deleted check.
$this->_duplicate_where .= $delimiter.' deleted=0';
$query='SELECT id FROM '.$table_name.$this->_duplicate_where;
$GLOBALS['log']->debug("relationship_exists query(".$query.')');
$result=$this->_db->query($query, true);
$row = $this->_db->fetchByAssoc($result);
if ($row == null) {
return false;
}
else {
$this->_duplicate_key=$row['id'];
return true;
}
}
/* returns array of keys for duplicate checking, first check for an index of type alternate_key, if not found searches for
* primary key.
*
*/
function _get_alternate_key_fields($table_name) {
$alternateKey=null;
$indices=Link::_get_link_table_definition($table_name,'indices');
if (!empty($indices)) {
foreach ($indices as $index) {
foreach ($index as $key=>$value) {
if ($key=='type' and $value=='alternate_key') {
$alternateKey=$index['fields'];
}
}
}
}
return $alternateKey;
}
/*
*/
function _get_link_table_definition($table_name,$def_name) {
global $dictionary;
include_once('modules/TableDictionary.php');
// first check to see if already loaded - assumes hasn't changed in the meantime
if (isset($dictionary[$table_name][$def_name]))
{
return $dictionary[$table_name][$def_name];
}
else {
if (isset($dictionary[$this->_relationship_name][$def_name])) {
return ($dictionary[$this->_relationship_name][$def_name]);
}
// custom metadata is found in custom/metadata (naturally) and the naming follows the convention $relationship_name_c, and $relationship_name = $table_name$locations = array( 'metadata/' , 'custom/metadata/' ) ;
$relationshipName = preg_replace( '/_c$/' , '' , $table_name ) ;
$locations = array ( 'metadata/' , 'custom/metadata/' ) ;
foreach ( $locations as $basepath )
{
$path = $basepath . $relationshipName . 'MetaData.php' ;
if (file_exists($path))
{
include($path);
if (isset($dictionary[$relationshipName][$def_name])) {
return $dictionary[$relationshipName][$def_name];
}
}
}
// couldn't find the metadata for the table in either the standard or custom locations
$GLOBALS['log']->debug('Error fetching field defs for join table '.$table_name);
$GLOBALS['log']->debug('Looking for meta in this file '.$metafile);
return null;
}
}
}
?>