Errors if a User account has no permissions for a particular group.
>>> [!note] Migrated issue
<!-- Drupal.org comment -->
<!-- Migrated from issue #1993486. -->
Reported by: [rlmumford](https://www.drupal.org/user/794682)
>>>
<p>If a given account has no permissions for a particular group <code>og_user_access()</code> throws an 'Undefined Index' error.</p>
<div class="codeblock">
<pre><span style="color: #000000"><span style="color: #0000BB"><?php<br></span><span style="color: #FF8000">// To reduce the number of SQL queries, we cache the user's permissions<br> // in a static variable.<br> </span><span style="color: #007700">if (!isset(</span><span style="color: #0000BB">$perm</span><span style="color: #007700">[</span><span style="color: #0000BB">$identifier</span><span style="color: #007700">][</span><span style="color: #0000BB">$account</span><span style="color: #007700">-></span><span style="color: #0000BB">uid</span><span style="color: #007700">])) {<br> </span><span style="color: #0000BB">$roles </span><span style="color: #007700">= </span><span style="color: #0000BB">og_get_user_roles</span><span style="color: #007700">(</span><span style="color: #0000BB">$group_type</span><span style="color: #007700">, </span><span style="color: #0000BB">$gid</span><span style="color: #007700">, </span><span style="color: #0000BB">$account</span><span style="color: #007700">-></span><span style="color: #0000BB">uid</span><span style="color: #007700">);<br> </span><span style="color: #0000BB">$role_permissions </span><span style="color: #007700">= </span><span style="color: #0000BB">og_role_permissions</span><span style="color: #007700">(</span><span style="color: #0000BB">$roles</span><span style="color: #007700">);<br><br> </span><span style="color: #0000BB">$perms </span><span style="color: #007700">= array();<br> foreach (</span><span style="color: #0000BB">$role_permissions </span><span style="color: #007700">as </span><span style="color: #0000BB">$one_role</span><span style="color: #007700">) {<br> </span><span style="color: #0000BB">$perms </span><span style="color: #007700">+= </span><span style="color: #0000BB">$one_role</span><span style="color: #007700">;<br> </span><span style="color: #0000BB">$perm</span><span style="color: #007700">[</span><span style="color: #0000BB">$identifier</span><span style="color: #007700">][</span><span style="color: #0000BB">$account</span><span style="color: #007700">-></span><span style="color: #0000BB">uid</span><span style="color: #007700">] = </span><span style="color: #0000BB">$perms</span><span style="color: #007700">;<br> }<br> }<br><br> if (!</span><span style="color: #0000BB">$skip_alter </span><span style="color: #007700">&& empty(</span><span style="color: #0000BB">$perm_alter</span><span style="color: #007700">[</span><span style="color: #0000BB">$identifier</span><span style="color: #007700">][</span><span style="color: #0000BB">$account</span><span style="color: #007700">-></span><span style="color: #0000BB">uid</span><span style="color: #007700">][</span><span style="color: #0000BB">$string</span><span style="color: #007700">])) {<br> </span><span style="color: #FF8000">// Let modules alter the permissions. since $perm is static we create<br> // a clone of it.<br> </span><span style="color: #0000BB">$group </span><span style="color: #007700">= !empty(</span><span style="color: #0000BB">$group</span><span style="color: #007700">) ? </span><span style="color: #0000BB">$group </span><span style="color: #007700">: </span><span style="color: #0000BB">entity_load_single</span><span style="color: #007700">(</span><span style="color: #0000BB">$group_type</span><span style="color: #007700">, </span><span style="color: #0000BB">$gid</span><span style="color: #007700">);<br> </span><span style="color: #0000BB">$temp_perm </span><span style="color: #007700">= </span><span style="color: #0000BB">$perm</span><span style="color: #007700">[</span><span style="color: #0000BB">$identifier</span><span style="color: #007700">][</span><span style="color: #0000BB">$account</span><span style="color: #007700">-></span><span style="color: #0000BB">uid</span><span style="color: #007700">];<br></span><span style="color: #0000BB">?></span></span></pre></div>
<p>Although the code tries to catch if <code>$perm[$identifier]</code> is unset, if <code>$role_permissions</code> is empty, this never gets set. The simple fix is to move <code>$perm[$identifier][$account->uid] = $perms;</code> outside of the for-each loop.</p>
issue
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