git.roojs.org Git - Pman.Core/blob - Lock.php

   1 <?php
   2
   3
   4
   5 /**
   6  *
   7  * Locking theory
   8  *
   9  *
  10  * This page is locked by XXXXXXX..
  11  * Do you to prevent them saving and lock it yourself..
  12  *
  13  *
  14  *
  15  *
  16  *
  17  * -- interacts with Roo and _lock = id..
  18  *
  19  *
  20  * call :
  21  * try and lock it..
  22  * baseURL + /Core/Lock/lock?on_id=...&on_table=...
  23  * - returns id or an array of who has the locks.
  24  *
  25  * Force an unlock after a warning..
  26  * baseURL + /Core/Lock/lock?on_id=...&on_table=...&force=1
  27  * - returns id..
  28  *
  29  * Unlock - call when window is closed..
  30  * baseURL + /Core/Lock/unlock?on_id=...&on_table=...&force=1
  31  * - returns jerr or jok
  32  */
  33
  34 require_once 'Pman.php';
  35
  36 class Pman_Core_Lock extends Pman
  37 {
  38
  39     function getAuth()
  40     {
  41          $au = $this->getAuthUser();
  42         if (!$au) {
  43              $this->jerr("Not authenticated", array('authFailure' => true));
  44         }
  45         $this->authUser = $au;
  46         // check that it's a supplier!!!!
  47
  48         return true;
  49     }
  50
  51     function get($action)
  52     {
  53         // should we allow url links to lock things???
  54         // only for debugging??
  55         $this->post($action);
  56         //
  57         $this->jerr("invalid request");
  58     }
  59
  60     function post($action)
  61     {
  62
  63         // default action is to attempt to lock..
  64         $action = empty($action) || $action == 'lock' ? 'lock' : 'unlock';
  65         $this->$action();
  66
  67     }
  68
  69     function unlock()
  70     {
  71
  72         if (empty($_REQUEST['id'])) {
  73             $this->jerr("No lock id");
  74         }
  75         $curlock = DB_DataObject::factory('Core_locking');
  76         if (!$curlock->get($_REQUEST['id'])) {
  77             $this->jok("No lock exists"); // been deleted before.. probably ok..
  78         }
  79
  80         if ($curlock->person_id != $this->authUser->id) {
  81             // this is an error conditon..
  82             $this->jerr("Lock id is invalid");
  83         }
  84
  85         $curlock->delete();
  86
  87         $this->jok('unlocked');
  88     }
  89     function lock()
  90     {
  91
  92         if (empty($_REQUEST['on_id']) || empty($_REQUEST['on_table'])) {
  93             $this->jerr("Missing table or id");
  94         }
  95
  96         $tab = str_replace('/', '', strtolower($_REQUEST['on_table'])); // basic protection??
  97         $x = DB_DataObject::factory($tab);
  98         if (!$x->get($_REQUEST['on_id'])) {
  99             $this->jerr("Item does not exist");
 100         }
 101         // is there a current lock on the item..
 102
 103         $curlock = DB_DataObject::factory('Core_locking');
 104         $curlock->setFrom(array(
 105             'on_id' => $_REQUEST['on_id'],
 106             'on_table' => strtolower($_REQUEST['on_table'])
 107         ));
 108
 109         $curlock_ex = clone($curlock);
 110         $curlock_ex->whereAdd('person_id != '. $this->authUser->id);
 111
 112
 113         $nlocks = $curlock_ex->count() ;
 114         if ($nlocks && empty($_REQUEST['force'])) {
 115            // DB_DataObjecT::debugLevel(1);
 116             $ar = $curlock->fetchAll('person_id', 'created');
 117             $p = DB_DataObject::factory('Person');
 118             $p->selectAdd();
 119             $p->selectAdd('id,name,email');
 120
 121             $p->whereAddIn('id', array_keys($ar), 'int');
 122             $p->find();
 123             $ret = array();
 124             while ($p->fetch()) {
 125                 $ret[$p->id] = $p->toArray();
 126                 $ret[$p->id]['lock_created'] = $ar[$p->id];
 127             }
 128             $this->jok(array_values($ret));
 129
 130         }
 131         // trash the lock if it belongs to current user..
 132         $nlocks = $curlock->count();
 133         if ($nlocks) {
 134             // trash all the locks..
 135             $curlock = DB_DataObject::factory('Core_locking');
 136             $curlock->setFrom(array(
 137                 'on_id' => $_REQUEST['on_id'],
 138                 'on_table' => strtolower($_REQUEST['on_table'])
 139             ));
 140             $curlock->find();
 141             while($curlock->fetch()) {
 142                 $cc =clone($curlock);
 143                 $cc->delete();
 144             }
 145         }
 146
 147         // make a lock..
 148
 149         $curlock = DB_DataObject::factory('Core_locking');
 150         $curlock->setFrom(array(
 151             'on_id' => $_REQUEST['on_id'],
 152             'on_table' => strtolower($_REQUEST['on_table']),
 153             'created' => date('Y-m-d H:i:s'),
 154             'person_id' => $this->authUser->id,
 155         ));
 156         $id = $curlock->insert();
 157         $this->jok($id);
 158
 159     }
 160
 161
 162
 163
 164 }