first import

sites/all/modules/demo/demo.api.php

@@ -0,0 +1,45 @@
+<?php
+// $Id: demo.api.php,v 1.1 2009/11/09 23:28:08 sun Exp $
+
+/**
+ * @file
+ * Documentation for Demonstration site module.
+ */
+
+/**
+ * @addtogroup hooks
+ * @{
+ */
+
+/**
+ * Alter snapshot options before a snapshot is created.
+ *
+ * @param &$options
+ *   A structured array consisting of submitted form values:
+ *   - filename: The base output filename, without extension.
+ *   - default: Whether to set this dump as new default snapshot.
+ *   - description: A description for the snapshot. If a snapshot with the same
+ *     name already exists and this is left blank, the new snapshot will reuse
+ *     the existing description.
+ *   - tables: An array of tables to dump, keyed by table name (including table
+ *     prefix, if any). The value is an array of dump options:
+ *     - schema: Whether to dump the table schema.
+ *     - data: Whether to dump the table data.
+ */
+function hook_demo_dump_alter(&$options) {
+  // Only export the table schema of table cache_table, but not the data.
+  // Commonly used for cache tables.
+  $options['tables']['cache_table']['data'] = FALSE;
+
+  // Completely ignore tables starting with a certain prefix.
+  foreach ($options['tables'] as $table => $dump_options) {
+    // Test if the table name starts with 'unrelated_'.
+    if (strncmp($table, 'unrelated_', 10) == 0) {
+      unset($options['tables'][$table]);
+    }
+  }
+}
+
+/**
+ * @} End of "addtogroup hooks".
+ */