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
  54         // default action is to attempt to lock..
  55         $action = empty($action) || $action == 'lock' ? 'lock' : 'unlock';
  56         $this->$action();
  57
  58     }
  59
  60     function unlock()
  61     {
  62
  63         if (empty($_REQUEST['id'])) {
  64             $this->jerr("No lock id");
  65         }
  66         $curlock = DB_DataObject::factory('Core_locking');
  67         if (!$curlock->get($_REQUEST['id'])) {
  68             $this->jerr("No lock exists");
  69         }
  70
  71         if ($curlock->person_id != $this->authUser->id) {
  72             $this->jerr("Lock id is invalid");
  73         }
  74
  75         $curlock->delete();
  76
  77         $this->jok('unlocked');
  78     }
  79     function lock()
  80     {
  81
  82         if (empty($_REQUEST['on_id']) || empty($_REQUEST['on_table'])) {
  83             $this->jerr("Missing table or id");
  84         }
  85
  86         $tab = str_replace('/', '',$_REQUEST['on_table']); // basic protection??
  87         $x = DB_DataObject::factory($tab);
  88         if (!$x->get($_REQUEST['on_id'])) {
  89             $this->jerr("Item does not exist");
  90         }
  91         // is there a current lock on the item..
  92
  93         $curlock = DB_DataObject::factory('Core_locking');
  94         $curlock->setFrom(array(
  95             'on_id' => $_REQUEST['on_id'],
  96             'on_table' => $_REQUEST['on_table']
  97         ));
  98
  99
 100         $nlocks = $curlock->count() ;
 101         if ($nlocks && empty($_REQUEST['force'])) {
 102             $curlock->selectAdd();
 103             $curlock->selectAdd('distinct(person_id), created');
 104
 105
 106             $ar = $curlock->fetchAll('person_id', 'created');
 107             $p = DB_DataObject::factory('Person');
 108             $p->whereAddIn('id', $ar, 'int');
 109             $p->find();
 110             $ret = array();
 111             while ($p->fetch()) {
 112                 $ret[$p->id] = $p->toRooArray();
 113                 $ret[$p->id]->lock_created = $ar[$p->id];
 114             }
 115             $this->jok(array_values($ret));
 116
 117         }
 118         if ($nlocks) {
 119             // trash all the locks..
 120             $curlock->find();
 121             while($curlock->fetch()) {
 122                 $cc =clone($curlock);
 123                 $cc->delete();
 124             }
 125         }
 126
 127         // make a lock..
 128
 129         $curlock = DB_DataObject::factory('Core_locking');
 130         $curlock->setFrom(array(
 131             'on_id' => $_REQUEST['on_id'],
 132             'on_table' => $_REQUEST['on_table'],
 133             'created' => date('Y-m-d H:i:s'),
 134             'person_id' => $this->authUser->id,
 135         ));
 136         $id = $curlock->insert();
 137         $this->jok($id);
 138
 139     }
 140
 141
 142
 143
 144 }