/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- * vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ : * ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is Places code. * * The Initial Developer of the Original Code is * Mozilla Corporation. * Portions created by the Initial Developer are Copyright (C) 2008 * the Initial Developer. All Rights Reserved. * * Contributor(s): * Shawn Wilsher (Original Author) * * Alternatively, the contents of this file may be used under the terms of * either the GNU General Public License Version 2 or later (the "GPL"), or * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ #include "nsPlacesTables.h" #ifndef __nsPlacesTriggers_h__ #define __nsPlacesTriggers_h__ /** * Exclude these visit types: * 0 - invalid * 4 - EMBED * 7 - DOWNLOAD * 7 - FRAMED_LINK **/ #define EXCLUDED_VISIT_TYPES "0, 4, 7, 8" /** * This triggers update visit_count and last_visit_date based on historyvisits * table changes. */ #define CREATE_HISTORYVISITS_AFTERINSERT_TRIGGER NS_LITERAL_CSTRING( \ "CREATE TEMP TRIGGER moz_historyvisits_afterinsert_v2_trigger " \ "AFTER INSERT ON moz_historyvisits FOR EACH ROW " \ "BEGIN " \ "UPDATE moz_places SET " \ "visit_count = visit_count + (SELECT NEW.visit_type NOT IN (" EXCLUDED_VISIT_TYPES ")), "\ "last_visit_date = MAX(IFNULL(last_visit_date, 0), NEW.visit_date) " \ "WHERE id = NEW.place_id;" \ "END" \ ) #define CREATE_HISTORYVISITS_AFTERDELETE_TRIGGER NS_LITERAL_CSTRING( \ "CREATE TEMP TRIGGER moz_historyvisits_afterdelete_v2_trigger " \ "AFTER DELETE ON moz_historyvisits FOR EACH ROW " \ "BEGIN " \ "UPDATE moz_places SET " \ "visit_count = visit_count - (SELECT OLD.visit_type NOT IN (" EXCLUDED_VISIT_TYPES ")), "\ "last_visit_date = (SELECT visit_date FROM moz_historyvisits " \ "WHERE place_id = OLD.place_id " \ "ORDER BY visit_date DESC LIMIT 1) " \ "WHERE id = OLD.place_id;" \ "END" \ ) /** * These triggers update the hostnames table whenever moz_places changes. */ #define CREATE_PLACES_AFTERINSERT_TRIGGER NS_LITERAL_CSTRING( \ "CREATE TEMP TRIGGER moz_places_afterinsert_trigger " \ "AFTER INSERT ON moz_places FOR EACH ROW " \ "WHEN LENGTH(NEW.rev_host) > 1 " \ "BEGIN " \ "INSERT OR REPLACE INTO moz_hosts (id, host, frecency, typed) " \ "VALUES (" \ "(SELECT id FROM moz_hosts WHERE host = fixup_url(get_unreversed_host(NEW.rev_host))), " \ "fixup_url(get_unreversed_host(NEW.rev_host)), " \ "MAX((SELECT frecency FROM moz_hosts WHERE host = fixup_url(get_unreversed_host(NEW.rev_host))), NEW.frecency), " \ "MAX(IFNULL((SELECT typed FROM moz_hosts WHERE host = fixup_url(get_unreversed_host(NEW.rev_host))), 0), NEW.typed) " \ "); " \ "END" \ ) #define CREATE_PLACES_AFTERDELETE_TRIGGER NS_LITERAL_CSTRING( \ "CREATE TEMP TRIGGER moz_places_afterdelete_trigger " \ "AFTER DELETE ON moz_places FOR EACH ROW " \ "BEGIN " \ "DELETE FROM moz_hosts " \ "WHERE host = fixup_url(get_unreversed_host(OLD.rev_host)) " \ "AND NOT EXISTS(" \ "SELECT 1 FROM moz_places " \ "WHERE rev_host = get_unreversed_host(host || '.') || '.' " \ "OR rev_host = get_unreversed_host(host || '.') || '.www.' " \ "); " \ "END" \ ) // For performance reasons the host frecency is updated only when the page // frecency changes by a meaningful percentage. This is because the frecency // decay algorithm requires to update all the frecencies at once, causing a // too high overhead, while leaving the ordering unchanged. #define CREATE_PLACES_AFTERUPDATE_FRECENCY_TRIGGER NS_LITERAL_CSTRING( \ "CREATE TEMP TRIGGER moz_places_afterupdate_frecency_trigger " \ "AFTER UPDATE OF frecency ON moz_places FOR EACH ROW " \ "WHEN NEW.frecency >= 0 " \ "AND ABS(" \ "IFNULL((NEW.frecency - OLD.frecency) / CAST(NEW.frecency AS REAL), " \ "(NEW.frecency - OLD.frecency))" \ ") > .05 " \ "BEGIN " \ "UPDATE moz_hosts " \ "SET frecency = (SELECT MAX(frecency) FROM moz_places " \ "WHERE rev_host = get_unreversed_host(host || '.') || '.' " \ "OR rev_host = get_unreversed_host(host || '.') || '.www.') " \ "WHERE host = fixup_url(get_unreversed_host(NEW.rev_host)); " \ "END" \ ) #define CREATE_PLACES_AFTERUPDATE_TYPED_TRIGGER NS_LITERAL_CSTRING( \ "CREATE TEMP TRIGGER moz_places_afterupdate_typed_trigger " \ "AFTER UPDATE OF typed ON moz_places FOR EACH ROW " \ "WHEN NEW.typed = 1 " \ "BEGIN " \ "UPDATE moz_hosts " \ "SET typed = 1 " \ "WHERE host = fixup_url(get_unreversed_host(NEW.rev_host)); " \ "END" \ ) /** * This trigger removes a row from moz_openpages_temp when open_count reaches 0. * * @note this should be kept up-to-date with the definition in * nsPlacesAutoComplete.js */ #define CREATE_REMOVEOPENPAGE_CLEANUP_TRIGGER NS_LITERAL_CSTRING( \ "CREATE TEMPORARY TRIGGER moz_openpages_temp_afterupdate_trigger " \ "AFTER UPDATE OF open_count ON moz_openpages_temp FOR EACH ROW " \ "WHEN NEW.open_count = 0 " \ "BEGIN " \ "DELETE FROM moz_openpages_temp " \ "WHERE url = NEW.url;" \ "END" \ ) #endif // __nsPlacesTriggers_h__