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()
  52     {
  53         // should we allow url links to lock things???
  54         $this->jerr("invalid request");
  55     }
  56
  57     function post($action)
  58     {
  59
  60         // default action is to attempt to lock..
  61         $action = empty($action) || $action == 'lock' ? 'lock' : 'unlock';
  62         $this->$action();
  63
  64     }
  65
  66     function unlock()
  67     {
  68
  69         if (empty($_REQUEST['id'])) {
  70             $this->jerr("No lock id");
  71         }
  72         $curlock = DB_DataObject::factory('Core_locking');
  73         if (!$curlock->get($_REQUEST['id'])) {
  74             $this->jerr("No lock exists");
  75         }
  76
  77         if ($curlock->person_id != $this->authUser->id) {
  78             $this->jerr("Lock id is invalid");
  79         }
  80
  81         $curlock->delete();
  82
  83         $this->jok('unlocked');
  84     }
  85     function lock()
  86     {
  87
  88         if (empty($_REQUEST['on_id']) || empty($_REQUEST['on_table'])) {
  89             $this->jerr("Missing table or id");
  90         }
  91
  92         $tab = str_replace('/', '',$_REQUEST['on_table']); // basic protection??
  93         $x = DB_DataObject::factory($tab);
  94         if (!$x->get($_REQUEST['on_id'])) {
  95             $this->jerr("Item does not exist");
  96         }
  97         // is there a current lock on the item..
  98
  99         $curlock = DB_DataObject::factory('Core_locking');
 100         $curlock->setFrom(array(
 101             'on_id' => $_REQUEST['on_id'],
 102             'on_table' => $_REQUEST['on_table']
 103         ));
 104
 105
 106         $nlocks = $curlock->count() ;
 107         if ($nlocks && empty($_REQUEST['force'])) {
 108
 109             $ar = $curlock->fetchAll('person_id', 'created');
 110             $p = DB_DataObject::factory('Person');
 111             $p->whereAddIn('id', $ar, 'int');
 112             $p->find();
 113             $ret = array();
 114             while ($p->fetch()) {
 115                 $ret[$p->id] = $p->toRooArray();
 116                 $ret[$p->id]->lock_created = $ar[$p->id];
 117             }
 118             $this->jok(array_values($ret));
 119
 120         }
 121         if ($nlocks) {
 122             // trash all the locks..
 123             $curlock->find();
 124             while($curlock->fetch()) {
 125                 $cc =clone($curlock);
 126                 $cc->delete();
 127             }
 128         }
 129
 130         // make a lock..
 131
 132         $curlock = DB_DataObject::factory('Core_locking');
 133         $curlock->setFrom(array(
 134             'on_id' => $_REQUEST['on_id'],
 135             'on_table' => $_REQUEST['on_table'],
 136             'created' => date('Y-m-d H:i:s'),
 137             'person_id' => $this->authUser->id,
 138         ));
 139         $id = $curlock->insert();
 140         $this->jok($id);
 141
 142     }
 143
 144
 145
 146
 147 }