Added excludable dsid setting in configuration page.

includes/admin.form.inc

@@ -83,8 +83,20 @@ function islandora_repository_admin(array $form, array &$form_state) {
           ),
         ),
       ),
+      'islandora_ds_replace_exclude' => array(
+        '#type' => 'fieldset',
+        '#title' => t('Excluded DSID'),
+        'islandora_namespace_restriction_enforced' => array(
+          '#type' => 'textfield',
+          '#title' => t('Enforce DSID restrictions'),
+          '#description' => t("A comma seperated list, allowing administrator to restrict user's access to replace a versionable datastreams latest version"),
+          '#default_value' => variable_get('islandora_namespace_restriction_enforced', 'RELS-EXT,RELS-INT'),
+        ),
+      ),
     ),
   );
+  $var_string = variable_get('islandora_namespace_restriction_enforced', 'RELS-EXT,RELS-INT');
+  dsm($var_string, "hehe");
   return system_settings_form($form);
 }
 

theme/theme.inc

@@ -460,7 +460,10 @@ function theme_islandora_datastream_replace_link(array $vars) {
   // be moved out into configuration somewhere. Hard coded === bad time.
   if (islandora_datastream_access(ISLANDORA_REPLACE_DATASTREAM, $datastream) &&
       islandora_datastream_access(ISLANDORA_ADD_NEW_DATASTREAM_VERSION, $datastream)) {
-    if (strcmp('RELS-EXT', $datastream->id) != 0 && strcmp('RELS-INT', $datastream->id) != 0) {
+    $var_string = variable_get("islandora_namespace_restriction_enforced", "RELS-EXT,RELS-INT");
+    $replace_exclude = explode($var_string, ",");
+    dsm($var_string, "var string");
+    if (!in_array($datastream->id, $replace_exclude)) {
       return l(t('replace'), "islandora/object/{$datastream->parent->id}/datastream/{$datastream->id}/replace");
     }
   }