From f47b73d4bc46351a2ed6fdb842ce452b815df58e Mon Sep 17 00:00:00 2001
From: Silvio Rhatto <rhatto@riseup.net>
Date: Tue, 4 Oct 2011 13:10:59 -0300
Subject: Enhancing request/accept

---
 muamba.business.inc | 66 ++++++++++++++++++++++++++++++++---------------------
 1 file changed, 40 insertions(+), 26 deletions(-)

(limited to 'muamba.business.inc')

diff --git a/muamba.business.inc b/muamba.business.inc
index b68443c..4d4bc5b 100644
--- a/muamba.business.inc
+++ b/muamba.business.inc
@@ -5,10 +5,6 @@
  * Business logic for Muamba.
  */
 
-// Load requirements.
-include_once('muamba.db.inc');
-include_once('muamba.misc.inc');
-
 /**
  * Determine possible actions for a transaction.
  *
@@ -96,16 +92,13 @@ function muamba_request($nid) {
   $node = node_load($nid);
 
   // Access check
-  if (!$node || $node->type != MUAMBA_NODE_TYPE || !node_access('view', $node)) {
+  if (!muamba_has_request_access($node)) {
     drupal_not_found();
   }
 
   // Check if user is blocked by the item owner
-  if (module_exists('pm_block_user')) {
-    $owner = user_load($node->uid);
-    if (pm_block_user_has_blocked($user, $owner)) {
-      return t('The item owner has blocked you from asking this item.');
-    }
+  if (muamba_user_has_blocked($node, $user)) {
+    return t('The item owner has blocked you from asking this item.');
   }
 
   // Check if user already requested the item
@@ -113,21 +106,31 @@ function muamba_request($nid) {
     return t('You already requested this item.');
   }
 
+  // Create transaction
+  $transaction = array(
+    'nid'    => $nid,
+    'owner'  => $node->uid,
+    'uid'    => $user->uid,
+    'status' => MUAMBA_REQUESTED,
+  );
+
+  // Issue item request
+  $transaction['mid'] = db_insert('muamba')
+    ->fields($transaction)
+    ->execute();
+
   // Notify item owner
-  $thread = privatemsg_new_thread(array(user_load($node->uid)), t('Item request'), 'User has requested an item');
+  $subject   = t('Item request: @title', array('@title' => check_plain($node->title)));
+  $message   = theme('muamba_request_message', array('transaction' => $transaction));
+  $thread    = privatemsg_new_thread(array(user_load($node->uid)), $subject , $message);
   $thread_id = $thread['message']->thread_id;
 
-  // Issue item request
-  $request = db_insert('muamba')
-    ->fields(
-      array(
-        'nid'       => $nid,
-        'owner'     => $node->uid,
-        'uid'       => $user->uid,
-        'status'    => MUAMBA_REQUESTED,
-        'thread_id' => $thread_id,
-      )
-    )
+  // Update request with thread id
+  $update = db_update('muamba')
+    ->fields(array(
+      'thread_id' => $thread_id,
+    ))
+    ->condition('mid', $transaction['mid'], '=')
     ->execute();
 
   // User output
@@ -146,17 +149,28 @@ function muamba_accept($mid) {
   global $user;
   $mid         = (int) $mid;
   $transaction = muamba_get_transaction($mid);
+  $node        = node_load($transaction->nid);
 
   // Access check
-  // TODO: also check if user owns the item
-  $node = node_load($transaction->nid);
-  if (!$node || $node->type != MUAMBA_NODE_TYPE || !node_access('view', $node)) {
+  if (!muamba_has_management_access($node)) {
+    drupal_not_found();
+  }
+
+  // Status check
+  if ($transaction->status != MUAMBA_REQUESTED) {
     drupal_not_found();
   }
 
-  // TODO
   // Update database
+  $update = db_update('muamba')
+    ->fields(array(
+      'status' => MUAMBA_ACCEPTED,
+    ))
+    ->condition('mid', $mid, '=')
+    ->execute();
+
   // Notify item owner
+  // TODO
 
   return t('Accepted item request.');
 }
-- 
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