first import

sites/all/modules/custom_search/includes/search_api.inc

@@ -0,0 +1,47 @@
+<?php
+
+/**
+ * @file
+ * Path generation for Search API.
+ *
+ * Available vars:
+ * $keywords: user input
+ * $types: content types (machine names[])
+ * $terms: taxonomy terms (tids[])
+ * $page: the Search API page
+ *
+ * To return:
+ * the complete search path
+ *
+ */
+
+function _custom_search_search_api_search($variables) {
+
+  $type = $variables['page']->path . '/' . $variables['keywords'];
+  $keys = array();
+
+  if (count($variables['types']) && !in_array('all', $variables['types'])) {
+    foreach ($variables['types'] as $key => $value) $keys["filter[type][$key]"] = "\"$value\"";
+  }
+
+  if (module_exists('taxonomy') && count($variables['terms'])) {
+    // Get index fields info, and keeps only the taxonomy ones
+    $index = search_api_index_load($variables['page']->index_id);
+    $fields = array();
+    foreach ($index->options['fields'] as $field => $data) {
+      if (isset($data['entity_type']) && $data['entity_type'] == 'taxonomy_term') {
+        $field_info = field_info_field($field);
+        $fields[$field_info['settings']['allowed_values'][0]['vocabulary']] = $field;
+      }
+    }
+    // Adds terms
+    foreach ($variables['terms'] as $key => $value) {
+      $term = taxonomy_term_load($value);
+      if (array_key_exists($term->vocabulary_machine_name, $fields))
+        $keys['filter[' . $fields[$term->vocabulary_machine_name] . '][' . $key . ']'] = "\"$value\"";
+    }
+  }
+
+  return array('path' => $type, 'query' => $keys);
+
+}