zoom: tune CCL to Z39.50 diagnostics mapping

[metaproxy-moved-to-github.git] / src / filter_zoom.cpp

diff --git a/src/filter_zoom.cpp b/src/filter_zoom.cpp
index a79a19c..97a1fde 100644 (file)
--- a/src/filter_zoom.cpp
+++ b/src/filter_zoom.cpp
@@ -815,7 +815,8 @@ yf::Zoom::BackendPtr yf::Zoom::Frontend::get_backend_from_databases(
     int *proxy_step)
 {
     std::list<BackendPtr>::const_iterator map_it;
-    if (m_backend && m_backend->m_frontend_database == database)
+    if (m_backend && !m_backend->enable_explain && 
+        m_backend->m_frontend_database == database)
         return m_backend;
 
     std::string input_args;
@@ -1850,12 +1851,16 @@ next_proxy:
             switch (cerror)
             {
             case CCL_ERR_UNKNOWN_QUAL:
-                error = YAZ_BIB1_UNSUPP_USE_ATTRIBUTE;
-                break;
             case CCL_ERR_TRUNC_NOT_LEFT: 
             case CCL_ERR_TRUNC_NOT_RIGHT:
             case CCL_ERR_TRUNC_NOT_BOTH:
-                error = YAZ_BIB1_UNSUPP_TRUNCATION_ATTRIBUTE;
+#ifdef CCL_ERR_TRUNC_NOT_EMBED
+            case CCL_ERR_TRUNC_NOT_EMBED:
+#endif
+#ifdef CCL_ERR_TRUNC_NOT_SINGLE
+            case CCL_ERR_TRUNC_NOT_SINGLE:
+#endif
+                error = YAZ_BIB1_UNSUPP_SEARCH;
                 break;
             }
             log_diagnostic(package, error, addinfo);