check file exists

[Pman.Core] / Lock.php

diff --git a/Lock.php b/Lock.php
index 8a7b264..b0e7ea9 100644 (file)
--- a/Lock.php
+++ b/Lock.php
@@ -1,6 +1,36 @@
 <?php
 
 
+
+/**
+ * 
+ * Locking theory
+ * 
+ * 
+ * This page is locked by XXXXXXX.. 
+ * Do you to prevent them saving and lock it yourself..
+ * 
+ * 
+ * 
+ * 
+ * 
+ * -- interacts with Roo and _lock = id..
+ * 
+ * 
+ * call : 
+ * try and lock it..
+ * baseURL + /Core/Lock/lock?on_id=...&on_table=...
+ * - returns id or an array of who has the locks.
+ * 
+ * Force an unlock after a warning..
+ * baseURL + /Core/Lock/lock?on_id=...&on_table=...&force=1
+ * - returns id..
+ * 
+ * Unlock - call when window is closed..
+ * baseURL + /Core/Lock/unlock?on_id=...&on_table=...&force=1
+ * - returns jerr or jok
+ */
+
 require_once 'Pman.php';
 
 class Pman_Core_Lock extends Pman
@@ -18,13 +48,146 @@ class Pman_Core_Lock extends Pman
         return true; 
     }
     
-    function get()
+    function get($action, $opts=array())
+    {
+        // should we allow url links to lock things???
+        // only for debugging??
+        $this->post($action);
+        // 
+        $this->jerr("invalid request");
+    }
+    
+    function post($action)
+    {
+        
+        // default action is to attempt to lock..
+        $action = empty($action) || $action == 'lock' ? 'lock' : 'unlock';
+        $this->$action();
+        
+    }
+    
+    function unlock()
+    {
+    
+        if (empty($_REQUEST['id'])) {
+            $this->jerr("No lock id");
+        }
+        $curlock = DB_DataObject::factory('core_locking');
+        if (!$curlock->get($_REQUEST['id'])) {
+            $this->jok("No lock exists"); // been deleted before.. probably ok..
+        }
+        
+        if ($curlock->person_id != $this->authUser->id) {
+            // this is an error conditon..
+            $this->jerr("Lock id is invalid");
+        }
+        
+        $curlock->delete();
+        
+        $this->jok('unlocked');
+    }
+    function lock()
     {
+        
         if (empty($_REQUEST['on_id']) || empty($_REQUEST['on_table'])) {
-            
+            $this->jerr("Missing table or id");
         }
-        $tab = str_replace('/', '',$tab); // basic protection??
+       
+        $tab = str_replace('/', '', strtolower($_REQUEST['on_table'])); // basic protection??
         $x = DB_DataObject::factory($tab);
+        if (!$x->get($_REQUEST['on_id'])) {
+            $this->jerr("Item does not exist");
+        }
+        // is there a current lock on the item..
+        
+        $curlock = DB_DataObject::factory('core_locking');
+        $curlock->setFrom(array(
+            'on_id' => $_REQUEST['on_id'],
+            'on_table' => strtolower($_REQUEST['on_table'])
+        ));
+        
+        // remove old locks..
+        $llc = clone($curlock);
+        $exp = date('Y-m-d', strtotime('NOW - 1 WEEK'));
+        $llc->whereAdd("created < '$exp'");
+        if ($llc->count()) {
+            $llc->find();
+            while($llc->fetch()) {
+                $llcd = clone($llc);
+                $llcd->delete();
+           
+            }
+        }
+        
+        
+        $curlock_ex = clone($curlock);
+        $curlock->person_id = $this->authUser->id;
+        
+        
+        $curlock_ex->whereAdd('person_id != '. $this->authUser->id);
+        $nlocks = $curlock_ex->count() ;
+        
+        $ret = false;
+        
+        if ($nlocks && empty($_REQUEST['force'])) {
+           // DB_DataObjecT::debugLevel(1);
+            $ar = $curlock_ex->fetchAll('person_id', 'created');
+            $p = DB_DataObject::factory('core_person');
+            $p->selectAdd();
+            $p->selectAdd('id,name,email');
+            
+            $p->whereAddIn('id', array_keys($ar), 'int');
+            $p->find();
+            $ret = array();
+            while ($p->fetch()) {
+                $ret[$p->id] = $p->toArray();
+                $ret[$p->id]['lock_created'] = $ar[$p->id];
+            }
+             $this->jok(array_values($ret));
+            
+        }
+        // trash the lock if it belongs to current user..
+        $ulocks = $curlock->count();
+        if ($ulocks) {
+            // trash all the locks..
+            $curlock = DB_DataObject::factory('core_locking');
+            $curlock->setFrom(array(
+                'on_id' => $_REQUEST['on_id'],
+                'on_table' => strtolower($_REQUEST['on_table']),
+                'person_id' => $this->authUser->id
+            ));
+            
+            $curlock->find();
+            while($curlock->fetch()) {
+                $cc =clone($curlock);
+                $cc->delete();
+            }
+        }
+        if ($nlocks && !empty($_REQUEST['force'])) {
+            // user has decied to delete eveyone elses locks..
+            $curlock_ex->find();
+            while($curlock_ex->fetch()) {
+                $cc =clone($curlock_ex);
+                $cc->delete();
+            }
+        }
+        
+        
+        // make a lock..
+        
+        $curlock = DB_DataObject::factory('core_locking');
+        $curlock->setFrom(array(
+            'on_id' => $_REQUEST['on_id'],
+            'on_table' => strtolower($_REQUEST['on_table']),
+            'created' => date('Y-m-d H:i:s'),
+            'person_id' => $this->authUser->id,
+        ));
+        $id = $curlock->insert();
+        $this->jok( $id);
+        
     }
+     
+    
+        
     
 }
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