Updated collections.

includes/datastream.inc

@@ -428,6 +428,21 @@ function islandora_datastream_get_url($ds, $type = 'download') {
   }
 }
 
+function islandora_datastream_get_delete_link($ds) {
+  $datastreams = module_invoke_all('islandora_undeletable_datastreams', $ds->parent->models);
+
+  if(in_array($ds->id, $datastreams)) {
+    return '';
+  }
+  else {
+    return l(t('delete'), 'islandora/object/' . $ds->parent->id . '/datastream/' . $ds->id . '/delete');
+  }
+}
+
+function islandora_islandora_undeletable_datastreams($models) {
+  return array('DC');
+}
+
 function islandora_datastream_edit_get_link($object, $ds_id) {
   $edit_registry = module_invoke_all('islandora_edit_datastream_registry', $object, $ds_id);
   if (count($edit_registry) > 0 && user_access(FEDORA_METADATA_EDIT)) {

islandora.module

@@ -742,7 +742,7 @@ function islandora_preprocess_islandora_default_edit(&$variables) {
       array('class' => 'datastream-size', 'data' => islandora_datastream_get_human_readable_size($ds)),
       array('class' => 'datastream-download', 'data' => l(t('download'), islandora_datastream_get_url($ds, 'download'))),
       array('class' => 'datstream-edit', 'data' => islandora_datastream_edit_get_link($islandora_object, $ds->id)),
-      array('class' => 'datastream-delete', 'data' => l(t('delete'), $base_url . '/islandora/object/' . $islandora_object->id . '/datastream/' . $ds->id . '/delete')),
+      array('class' => 'datastream-delete', 'data' => islandora_datastream_get_delete_link($ds)),
     );
   }
   $caption = $islandora_object->label . ' - ' . $islandora_object->id;

islandora_basic_collection/admin/islandora_basic_collection.admin.inc

@@ -26,6 +26,23 @@ function islandora_basic_collection_admin() {
     '#description' => t('The default number of object to show in a collection view.'),
     '#weight' => -10
   );
+  $form['islandora_basic_collection_disable_collection_policy_delete'] = array(
+    '#type' => 'checkbox',
+    '#title' => t('Disable deleting the collection policy'),
+    '#default_value' => variable_get('islandora_basic_collection_disable_collection_policy_delete', TRUE),
+    '#description' => t('This will disable the delete link for the COLLECTION_POLICY in the manage tab.'),
+    '#weight' => -10
+  );
+  $form['islandora_basic_collection_default_view'] = array(
+    '#type' => 'select',
+    '#title' => t('Select the default collection view style.'),
+    '#default_value' => variable_get('islandora_basic_collection_default_view', 'grid'),
+    '#options' => array(
+      'list' => t('List'),
+      'grid' => t('Grid'),
+    ),
+    '#weight' => -10
+  );
 
   return system_settings_form($form);
 }

islandora_basic_collection/islandora_basic_collection.module

@@ -327,4 +327,12 @@ function islandora_basic_collection_islandora_ingest_get_information($models, $o
       drupal_set_message(t('Islandora Error getting collection info for %s', array('%s' => $object->id)), 'error');
     }
   }
+}
+
+function islandora_basic_collection_islandora_undeletable_datastreams($models) {
+  if(in_array('islandora:collectionCModel', $models)) {
+    if(variable_get('islandora_basic_collection_disable_collection_policy_delete', TRUE)) {
+      return array('COLLECTION_POLICY');
+    }
+  }
 }

islandora_basic_collection/theme/islandora_basic_collection.theme.inc

@@ -17,19 +17,19 @@ function islandora_basic_collection_preprocess_islandora_basic_collection_wrappe
   $total_count = count($results);
   pager_default_initialize($total_count, $page_size);
   $variables['collection_pager'] = theme('pager', array('quantity' => 10));
-  $display = (empty($_GET['display'])) ? 'list' : $_GET['display'];
+  $display = (empty($_GET['display'])) ? variable_get('islandora_basic_collection_default_view', 'grid') : $_GET['display'];
   $link_text = (empty($_GET['display'])) ? 'grid' : $_GET['display'];
   $query_params = drupal_get_query_parameters($_GET);
 
   if ($display == 'grid') {
     $query_params['display'] = 'list';
-    $link_text = 'list view';
+    $link_text = 'List View';
     $link_class = 'islandora-view-default';
     $collection_content = theme('islandora_basic_collection_grid', array('islandora_object' => $islandora_object, 'collection_results' => $results));
   }
   else {
     $query_params['display'] = 'grid';
-    $link_text = 'grid view';
+    $link_text = 'Grid View';
     $link_class = 'islandora-view-grid';
     $collection_content = theme('islandora_basic_collection', array('islandora_object' => $islandora_object, 'collection_results' => $results));
   }