mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-11-23 16:33:17 +01:00
0fbcb5c928
Now fixed the situation where 1 row was updated & 1 added, but the added one did not match filter and was not returned when server was asked. Now removed blank row waiting for it, and keeping row count consistent
977 lines
29 KiB
JavaScript
977 lines
29 KiB
JavaScript
/**
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* eGroupWare eTemplate2
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*
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package etemplate
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* @subpackage api
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* @link http://www.egroupware.org
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* @author Andreas Stöckel
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* @copyright Stylite 2012
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* @version $Id$
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*/
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/*egw:uses
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egw_core;
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egw_debug;
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*/
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/**
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* Module storing and updating row data
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*
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* @param {string} _app application name object is instanciated for
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* @param {object} _wnd window object is instanciated for
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*/
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egw.extend("data", egw.MODULE_APP_LOCAL, function (_app, _wnd)
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{
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"use strict";
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/**
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* How many UIDs we'll tell the server we know about. No need to pass the whole list around.
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*/
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var KNOWN_UID_LIMIT = 200;
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/**
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* Cache lifetime
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*
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* If cached results are used, we check their timestamp. If the timestamp
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* is older than this, we will also ask for fresh data. For cached data
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* younger than this, we only return the cache
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*
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* 29 seconds, 1 less then the fastest nextmatch autorefresh option
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*/
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var CACHE_LIFETIME = 29; // seconds
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/**
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* Cached fetches are differentiated from actual results by using this prefix
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* @type String
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*/
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var CACHE_KEY_PREFIX = 'cached_fetch_';
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var lastModification = null;
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/**
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* cacheCallback stores callbacks that determine if data is placed
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* into cacheStorage, or simply kept temporarily. It is indexed
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* by prefix.
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*
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* @type Array
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*/
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var cacheCallback = {};
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/**
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* The uid function generates a session-unique id for the current
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* application by appending the application name to the given uid.
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*
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* @param {string} _uid
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* @param {string} _prefix
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*/
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function UID(_uid, _prefix)
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{
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_prefix = _prefix ? _prefix : _app;
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return _prefix + "::" + _uid;
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}
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/**
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* Looks like too much data is cached. Forget some.
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*
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* Tries to free up localStorage by removing the oldest cached data for the
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* given prefix, but if none is found it will look at all cached data.
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*
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* @param {string} _prefix UID / application prefix
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* @returns {Number} Number of cached recordsets removed, normally 1.
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*/
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function _clearCache(_prefix)
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{
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// Find cached items for the prefix, we prefer to expire just within the app
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var indexes = [];
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for(var i = 0; i < window.localStorage.length; i++)
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{
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var key = window.localStorage.key(i);
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// This is a cached fetch for many rows
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if(key.indexOf(CACHE_KEY_PREFIX+_prefix) == 0)
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{
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var cached = JSON.parse(window.localStorage.getItem(key));
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if(cached.lastModification)
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{
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indexes.push({
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key: key,
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lastModification: cached.lastModification
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});
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}
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else
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{
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// No way to know how old it is, just remove it
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window.localStorage.removeItem(key);
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}
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}
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// Actual cached data
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else if (key.indexOf(_prefix) == 0)
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{
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var cached = JSON.parse(window.localStorage.getItem(key));
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if(cached.timestamp)
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{
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indexes.push({
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key: key,
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lastModification: cached.timestamp
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});
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}
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else
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{
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// No way to know how old it is, just remove it
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window.localStorage.removeItem(key);
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}
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}
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}
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// Nothing for that prefix? Clear all cached data.
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if(_prefix && indexes.length == 0)
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{
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return _clearCache('');
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}
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// Found some cached for that prefix, only remove the oldest
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else if (indexes.length > 0)
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{
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indexes.sort(function(a,b) {
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if(a.lastModification < b.lastModification) return 1;
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if(a.lastModification > b.lastModification) return -1;
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return 0;
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});
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window.localStorage.removeItem(indexes.pop().key);
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return 1;
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}
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return indexes.length;
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}
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function parseServerResponse(_result, _callback, _context, _execId, _widgetId)
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{
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// Check whether the result is valid
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// This result is not for us, quietly return
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if(_result && typeof _result.type != 'undefined') return;
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// "result" has to be an object consting of "order" and "data"
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if (!(_result && typeof _result.order !== "undefined"
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&& typeof _result.data !== "undefined"))
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{
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egw.debug("error", "Invalid result for 'dataFetch'");
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}
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if (_result.lastModification)
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{
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lastModification = _result.lastModification;
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}
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if (_result.order && _result.data)
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{
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// Assemble the correct order uids
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if(!(_result.order.length && _result.order[0] && _result.order[0].indexOf && _result.order[0].indexOf(_context.prefix) == 0))
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{
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for (var i = 0; i < _result.order.length; i++)
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{
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_result.order[i] = UID(_result.order[i], _context.prefix);
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}
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}
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// Load all data entries that have been sent or delete them
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for (var key in _result.data)
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{
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let uid = UID(key, (typeof _context == "object" && _context != null) ?_context.prefix : "");
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if (_result.data[key] === null &&
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(
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typeof _context.refresh == "undefined" || _context.refresh && !jQuery.inArray(key,_context.refresh)
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))
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{
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egw.dataDeleteUID(uid);
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}
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else
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{
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egw.dataStoreUID(uid, _result.data[key]);
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}
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}
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// Check if we tried to refresh a specific row and didn't get it, so set it to null
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// (triggers update for listeners), then remove it
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if(typeof _context == "object" && _context.refresh)
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{
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for(let i = 0; i < _context.refresh.length; i++)
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{
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let uid = UID(_context.refresh[i], _context.prefix);
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if(_result.order.indexOf(uid) >= 0)
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{
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continue;
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}
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egw.dataStoreUID(uid, null);
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egw.dataDeleteUID(uid);
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}
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}
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// Check to see if we need long-term caching of the query and its results
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if(window.localStorage && _context.prefix && cacheCallback[_context.prefix] && !_context.no_cache)
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{
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// Ask registered callbacks if we should cache this
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for(var i = 0; i < cacheCallback[_context.prefix].length; i++)
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{
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var cc = cacheCallback[_context.prefix][i];
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var cache_key = cc.callback.call(cc.context, _context);
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if(cache_key)
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{
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cache_key = CACHE_KEY_PREFIX + _context.prefix + '::' + cache_key;
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try
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{
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for (var key in _result.data)
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{
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var uid = UID(key, (typeof _context == "object" && _context != null) ? _context.prefix : "");
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// Register a handler on each data so we can know if it is updated or removed
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egw.dataUnregisterUID(uid, null, cache_key);
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egw.dataRegisterUID(uid, function(data, _uid) {
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// If data item is removed, remove it from cached fetch too
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if(data == null)
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{
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var cached = JSON.parse(window.localStorage[this]) || false;
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if(cached && cached.order && cached.order.indexOf(_uid) >= 0)
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{
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cached.order.splice(cached.order.indexOf(_uid),1);
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if(cached.total) cached.total--;
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window.localStorage[this] = JSON.stringify(cached);
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}
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window.localStorage.removeItem(_uid);
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}
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else
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{
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// Update or store data in long-term storage
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window.localStorage[_uid] = JSON.stringify({timestamp: (new Date).getTime(), data: data});
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}
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}, cache_key, _execId, _widgetId);
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}
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// Don't keep data in long-term cache with request also
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_result.data = {};
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window.localStorage.setItem(cache_key,JSON.stringify(_result));
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}
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catch (e)
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{
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// Maybe ran out of space? Free some up.
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if(e.name == 'QuotaExceededError' // storage quota is exceeded, remove cached data
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|| e.name == 'NS_ERROR_DOM_QUOTA_REACHED') // FF-name
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{
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var count = _clearCache(_context.prefix);
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egw.debug('info', 'localStorage full, removed ' + count + ' stored datasets');
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}
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// No, something worse happened
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else
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{
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egw.debug('warning', 'Tried to cache some data. It did not work.', cache_key, e);
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}
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}
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}
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}
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}
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// Call the callback function and pass the calculated "order" array
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// as well as the "total" count and the "timestamp" to the listener.
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if (_callback)
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{
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_callback.call(_context, {
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"order": _result.order,
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"total": parseInt(_result.total),
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"readonlys": _result.readonlys,
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"rows": _result.rows,
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"lastModification": lastModification
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});
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}
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}
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}
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return {
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/**
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* The dataFetch function provides an abstraction layer for the
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* corresponding "EGroupware\Api\Etemplate\Widget\Nextmatch::ajax_get_rows" function.
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* The server returns the following structure:
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* {
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* order: [uid, ...],
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* data:
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* {
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* uid0: data,
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* ...
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* uidN: data
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* },
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* total: <TOTAL COUNT>,
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* lastModification: <LAST MODIFICATION TIMESTAMP>,
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* readonlys: <READONLYS>
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* }
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* If a uid got deleted on the server above data is null.
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* If a uid is omitted from data, is has not changed since lastModification.
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*
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* If order/data is null, this means that nothing has changed for the
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* given range.
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* The dataFetch function stores new data for the uid's inside the
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* local data storage, the grid views are then capable of querying the
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* data for those uids from the local storage using the
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* "dataRegisterUID" function.
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*
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* @param _execId is the execution context of the etemplate instance
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* you're querying the data for.
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* @param _queriedRange is an object of the following form:
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* {
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* start: <START INDEX>,
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* num_rows: <COUNT OF ENTRIES>
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* }
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* The range always corresponds to the given filter settings.
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* @param _filters contains the filter settings. The filter settings are
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* those which are crucial for the mapping between index and uid.
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* @param _widgetId id with full namespace of widget
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* @param _callback is the function that should get called, once the data
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* is available. The data passed to the callback function has the
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* following form:
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* {
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* order: [uid, ...],
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* total: <TOTAL COUNT>,
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* lastModification: <LAST MODIFICATION TIMESTAMP>,
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* readonlys: <READONLYS>
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* }
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* Please note that the "uids" comming from the server and the ones
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* being parsed to the callback function differ. While the uids
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* which are returned from the server are only unique inside the
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* application, the uids which are used on the client are "globally"
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* unique.
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* @param _context is the context in which the callback function will get
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* called.
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* @param _knownUids is an array of uids already known to the client.
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* This parameter may be null in order to indicate that the client
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* currently has no data for the given filter settings.
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*/
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dataFetch: function (_execId, _queriedRange, _filters, _widgetId,
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_callback, _context, _knownUids)
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{
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var lm = lastModification;
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if(typeof _context.lastModification != "undefined") lm = _context.lastModification;
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if (_queriedRange["no_data"])
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{
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lm = 0xFFFFFFFFFFFF;
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}
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else if (_queriedRange["only_data"])
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{
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lm = 0;
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}
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// Store refresh in context to not delete the other entries when server only returns these
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if (typeof _queriedRange.refresh != "undefined")
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{
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if(typeof _queriedRange.refresh == "string")
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{
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_context.refresh = [_queriedRange.refresh];
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}
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else
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{
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_context.refresh = _queriedRange.refresh;
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}
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}
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// Limit the amount of UIDs we say we know about to a sensible number, in case user is enjoying auto-pagination
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var knownUids = _knownUids ? _knownUids : egw.dataKnownUIDs(_context.prefix ? _context.prefix : _app);
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if(knownUids > KNOWN_UID_LIMIT)
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{
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knownUids.slice(typeof _queriedRange.start != "undefined" ? _queriedRange.start:0,KNOWN_UID_LIMIT);
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}
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// Check to see if we have long-term caching of the query and its results
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if(window.localStorage && _context.prefix && cacheCallback[_context.prefix])
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{
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// Ask registered callbacks if we should cache this
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for(var i = 0; i < cacheCallback[_context.prefix].length; i++)
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{
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var cc = cacheCallback[_context.prefix][i];
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var cache_key = cc.callback.call(cc.context, _context);
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if(cache_key)
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{
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cache_key = CACHE_KEY_PREFIX + _context.prefix + '::' + cache_key;
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var cached = window.localStorage.getItem(cache_key);
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if(cached)
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{
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cached = JSON.parse(cached);
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var needs_update = true;
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// Check timestamp
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if(cached.lastModification && ((Date.now()/1000) - cached.lastModification) < CACHE_LIFETIME)
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{
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needs_update = false;
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}
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egw.debug('log', 'Data cached query from ' + new Date(cached.lastModification*1000)+': ' + cache_key + '('+
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(needs_update ? 'will be' : 'will not be')+" updated)\nprocessing...");
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// Call right away with cached data, but set no_cache flag
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// to avoid re-caching this data with a new timestamp.
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// We may still ask the server though.
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var no_cache = _context.no_cache;
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_context.no_cache = true;
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parseServerResponse(cached, _callback, _context, _execId, _widgetId);
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_context.no_cache = no_cache;
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// If cache registrant wants notification of cache useage,
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// let it know
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if(cc.notification)
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{
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cc.notification.call(cc.context, needs_update);
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}
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if(!needs_update)
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{
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// Cached data is new enough, skip the server call
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return;
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}
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}
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}
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}
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}
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// create a clone of filters, which can be used in parseServerResponse and cache callbacks
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// independent of changes happening while waiting for the response
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_context.filters = jQuery.extend({}, _filters);
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var request = egw.json(
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"EGroupware\\Api\\Etemplate\\Widget\\Nextmatch::ajax_get_rows",
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[
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_execId,
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_queriedRange,
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_filters,
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_widgetId,
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knownUids,
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lm
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],
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function(result) {
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parseServerResponse(result, _callback, _context, _execId, _widgetId);
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},
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this,
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true
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);
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request.sendRequest();
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},
|
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|
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/**
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* Turn on long-term client side cache of a particular request
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* (cache the nextmatch query results) for fast, immediate response
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* with old data.
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*
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* The request is still sent to the server, and the cache is updated
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* with fresh data, and any needed callbacks are called again with
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* the fresh data.
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*
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* @param {string} prefix UID / Application prefix should match the
|
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* individual record prefix
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* @param {function} callback_function A function that will analize the provided fetch
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* parameters and return a reproducable cache key, or false to not cache
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* the request.
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* @param {function} notice_function A function that will be called whenever
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* cached data is used. It is passed one parameter, a boolean that indicates
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* if the server is or will be queried to refresh the cache. Do not fetch additional data
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* inside this callback, and return quickly.
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* @param {object} context Context for callback function.
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*/
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dataCacheRegister: function(prefix, callback_function, notice_function, context)
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|
{
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|
if(typeof cacheCallback[prefix] == 'undefined')
|
|
{
|
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cacheCallback[prefix] = [];
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|
}
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|
cacheCallback[prefix].push({
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callback: callback_function,
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notification: notice_function || false,
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context: context || null
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});
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},
|
|
|
|
/**
|
|
* Unregister a previously registered cache callback
|
|
* @param {string} prefix UID / Application prefix should match the
|
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* individual record prefix
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|
* @param {function} [callback] Callback function to un-register. If
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* omitted, all functions for the prefix will be removed.
|
|
*/
|
|
dataCacheUnregister: function(prefix, callback)
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|
{
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if(typeof callback != 'undefined')
|
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{
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for(var i = 0; i < cacheCallback[prefix].length; i++)
|
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{
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if(cacheCallback[prefix][i].callback == callback)
|
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{
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cacheCallback[prefix].splice(i,1);
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return;
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}
|
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}
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}
|
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// Callback not provided or not found, reset by prefix
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cacheCallback[prefix] = [];
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}
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|
};
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|
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});
|
|
|
|
egw.extend("data_storage", egw.MODULE_GLOBAL, function (_app, _wnd) {
|
|
|
|
/**
|
|
* The localStorage object is used to store the data for certain uids. An
|
|
* entry inside the localStorage object looks like the following:
|
|
* {
|
|
* timestamp: <CREATION TIMESTAMP (local)>,
|
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* data: <DATA>
|
|
* }
|
|
*/
|
|
var localStorage = {};
|
|
|
|
/**
|
|
* The registeredCallbacks map is used to store all callbacks registerd for
|
|
* a certain uid.
|
|
*/
|
|
var registeredCallbacks = {};
|
|
|
|
|
|
|
|
/**
|
|
* Register the "data" plugin globally for single uids
|
|
* Multiple UIDs such as nextmatch results are still handled by egw.data
|
|
* using dataFetch() && parseServerResponse(), above. Both update the
|
|
* GLOBAL data cache though this one is registered globally, and the above
|
|
* is registered app local.
|
|
*
|
|
* @param {string} type
|
|
* @param {object} res
|
|
* @param {object} req
|
|
* @returns {Boolean}
|
|
*/
|
|
egw.registerJSONPlugin(function(type, res, req) {
|
|
if ((typeof res.data.uid != 'undefined') &&
|
|
(typeof res.data.data != 'undefined'))
|
|
{
|
|
// Store it, which will call all registered listeners
|
|
this.dataStoreUID(res.data.uid, res.data.data);
|
|
return true;
|
|
}
|
|
}, egw, 'data',true);
|
|
|
|
/**
|
|
* Uids and timers used for querying data uids, hashed by the first few
|
|
* bytes of the _execId, stored as an object of the form
|
|
* {
|
|
* "timer": <QUEUE TIMER>,
|
|
* "uids": <ARRAY OF UIDS>
|
|
* }
|
|
*/
|
|
var queue = {};
|
|
|
|
/**
|
|
* Contains the queue timeout in milliseconds.
|
|
*/
|
|
var QUEUE_TIMEOUT = 10;
|
|
|
|
/**
|
|
* This constant specifies the maximum age of entries in the local storrage
|
|
* in milliseconds
|
|
*/
|
|
var MAX_AGE = 5 * 60 * 1000; // 5 mins
|
|
|
|
/**
|
|
* This constant specifies the interval in which the local storage gets
|
|
* cleaned up.
|
|
*/
|
|
var CLEANUP_INTERVAL = 30 * 1000; // 30 sec
|
|
|
|
/**
|
|
* Register a cleanup function, which throws away all data entries which are
|
|
* older than the given age.
|
|
*/
|
|
_wnd.setInterval(function() {
|
|
// Get the current timestamp
|
|
var time = (new Date).getTime();
|
|
|
|
// Iterate over the local storage
|
|
for (var uid in localStorage)
|
|
{
|
|
// Expire old data, if there are no callbacks
|
|
if (time - localStorage[uid].timestamp > MAX_AGE && typeof registeredCallbacks[uid] == "undefined")
|
|
{
|
|
// Unregister all registered callbacks for that uid
|
|
egw.dataUnregisterUID(uid);
|
|
|
|
// Delete the data from the localStorage
|
|
delete localStorage[uid];
|
|
|
|
// We don't clean long-term storage because of age until it runs
|
|
// out of space
|
|
}
|
|
}
|
|
}, CLEANUP_INTERVAL);
|
|
|
|
return {
|
|
|
|
/**
|
|
* Registers the intrest in a certain uid for a callback function. If
|
|
* the data for that uid changes or gets loaded, the given callback
|
|
* function is called. If the data for the given uid is available at the
|
|
* time of registering the callback, the callback is called immediately.
|
|
*
|
|
* @param _uid is the uid for which the callback should be registered.
|
|
* @param _callback is the callback which should get called.
|
|
* @param _context is the optional context in which the callback will be
|
|
* executed
|
|
* @param _execId is the exec id which will be used in case the data is
|
|
* not available
|
|
* @param _widgetId is the widget id which will be used in case the uid
|
|
* has to be fetched.
|
|
*/
|
|
dataRegisterUID: function (_uid, _callback, _context, _execId, _widgetId) {
|
|
// Create the slot for the uid if it does not exist now
|
|
if (typeof registeredCallbacks[_uid] === "undefined")
|
|
{
|
|
registeredCallbacks[_uid] = [];
|
|
}
|
|
|
|
// Store the given callback
|
|
registeredCallbacks[_uid].push({
|
|
"callback": _callback,
|
|
"context": _context ? _context : null,
|
|
"execId": _execId,
|
|
"widgetId" : _widgetId
|
|
});
|
|
|
|
// Check whether the data is available -- if yes, immediately call
|
|
// back the callback function
|
|
if (typeof localStorage[_uid] !== "undefined")
|
|
{
|
|
// Update the timestamp and call the given callback function
|
|
localStorage[_uid].timestamp = (new Date).getTime();
|
|
_callback.call(_context, localStorage[_uid].data, _uid);
|
|
}
|
|
// Check long-term storage
|
|
else if(window.localStorage && window.localStorage[_uid])
|
|
{
|
|
localStorage[_uid] = JSON.parse(window.localStorage[_uid]);
|
|
_callback.call(_context, localStorage[_uid].data, _uid);
|
|
}
|
|
else if (_execId && _widgetId)
|
|
{
|
|
// Get the first 50 bytes of the exex id
|
|
var hash = _execId.substring(0, 50);
|
|
|
|
// Create a new queue if it does not exist yet
|
|
if (typeof queue[hash] === "undefined")
|
|
{
|
|
var self = this;
|
|
queue[hash] = {"uids": [], "timer": null};
|
|
queue[hash].timer = window.setTimeout(function () {
|
|
// Fetch the data
|
|
self.dataFetch(_execId, {
|
|
"start": 0,
|
|
"num_rows": 0,
|
|
"only_data": true,
|
|
"refresh": queue[hash].uids
|
|
},
|
|
[], _widgetId, null, _context, null);
|
|
|
|
// Delete the queue entry
|
|
delete queue[hash];
|
|
}, 100);
|
|
}
|
|
|
|
// Push the uid onto the queue, removing the prefix
|
|
var parts = _uid.split("::");
|
|
parts.shift();
|
|
if (queue[hash].uids.indexOf(parts.join("::")) === -1)
|
|
{
|
|
queue[hash].uids.push(parts.join('::'));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
this.debug("log", "Data for uid " + _uid + " not available.");
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Unregisters the intrest of updates for a certain data uid.
|
|
*
|
|
* @param _uid is the data uid for which the callbacks should be
|
|
* unregistered.
|
|
* @param _callback specifies the specific callback that should be
|
|
* unregistered. If it evaluates to false, all callbacks (or those
|
|
* matching the optionally given context) are removed.
|
|
* @param _context specifies the callback context that should be
|
|
* unregistered. If it evaluates to false, all callbacks (or those
|
|
* matching the optionally given callback function) are removed.
|
|
*/
|
|
dataUnregisterUID: function (_uid, _callback, _context) {
|
|
|
|
// Force the optional parameters to be exactly null
|
|
_callback = _callback ? _callback : null;
|
|
_context = _context ? _context : null;
|
|
|
|
if (typeof registeredCallbacks[_uid] !== "undefined")
|
|
{
|
|
|
|
// Iterate over the registered callbacks for that uid and delete
|
|
// all callbacks pointing to the given callback and context
|
|
for (var i = registeredCallbacks[_uid].length - 1; i >= 0; i--)
|
|
{
|
|
if ((!_callback || registeredCallbacks[_uid][i].callback === _callback)
|
|
&& (!_context || registeredCallbacks[_uid][i].context === _context))
|
|
{
|
|
registeredCallbacks[_uid].splice(i, 1);
|
|
}
|
|
}
|
|
|
|
// Delete the slot if no callback is left for the uid
|
|
if (registeredCallbacks[_uid].length === 0)
|
|
{
|
|
delete registeredCallbacks[_uid];
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Returns whether data is available for the given uid.
|
|
*
|
|
* @param _uid is the uid for which should be checked whether it has some
|
|
* data.
|
|
*/
|
|
dataHasUID: function (_uid) {
|
|
return typeof localStorage[_uid] !== "undefined";
|
|
},
|
|
|
|
/**
|
|
* Returns data of a given uid.
|
|
*
|
|
* @param _uid is the uid for which should be checked whether it has some
|
|
* data.
|
|
*/
|
|
dataGetUIDdata: function (_uid) {
|
|
return localStorage[_uid];
|
|
},
|
|
|
|
/**
|
|
* Returns all uids that have the given prefix
|
|
*
|
|
* @param {string} _prefix
|
|
* @return {array}
|
|
* TODO: Improve this
|
|
*/
|
|
dataKnownUIDs: function (_prefix) {
|
|
|
|
var result = [];
|
|
|
|
for (var key in localStorage)
|
|
{
|
|
var parts = key.split("::");
|
|
if (parts.shift() === _prefix && localStorage[key].data)
|
|
{
|
|
|
|
result.push(parts.join('::'));
|
|
}
|
|
}
|
|
|
|
return result;
|
|
},
|
|
|
|
/**
|
|
* Stores data for the uid and calls all callback functions registered
|
|
* for that uid.
|
|
*
|
|
* @param _uid is the uid for which the data should be saved.
|
|
* @param _data is the data which should be saved.
|
|
*/
|
|
dataStoreUID: function (_uid, _data) {
|
|
// Get the current unix timestamp
|
|
var timestamp = (new Date).getTime();
|
|
|
|
// Store the data in the local storage
|
|
localStorage[_uid] = {
|
|
"timestamp": timestamp,
|
|
"data": _data
|
|
};
|
|
|
|
// Inform all registered callback functions and pass the data to
|
|
// those.
|
|
if (typeof registeredCallbacks[_uid] != "undefined")
|
|
{
|
|
for (var i = registeredCallbacks[_uid].length - 1; i >= 0; i--)
|
|
{
|
|
try {
|
|
registeredCallbacks[_uid][i].callback.call(
|
|
registeredCallbacks[_uid][i].context,
|
|
_data,
|
|
_uid
|
|
);
|
|
} catch (e) {
|
|
// Remove this callback from the list
|
|
if(typeof registeredCallbacks[_uid] != "undefined")
|
|
{
|
|
registeredCallbacks[_uid].splice(i, 1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Deletes the data for a certain uid from the local storage and
|
|
* unregisters all callback functions associated to it.
|
|
*
|
|
* This does NOT update nextmatch!
|
|
* Application code should use: egw(window).refresh(msg, app, id, "delete");
|
|
*
|
|
* @param _uid is the uid which should be deleted.
|
|
*/
|
|
dataDeleteUID: function (_uid) {
|
|
if (typeof localStorage[_uid] !== "undefined")
|
|
{
|
|
// Delete the element from the local storage
|
|
delete localStorage[_uid];
|
|
|
|
// Unregister all callbacks for that uid
|
|
this.dataUnregisterUID(_uid);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Force a refreash of the given uid from the server if known, and
|
|
* calls all associated callbacks.
|
|
*
|
|
* If the UID does not have any registered callbacks, it cannot be refreshed because the required
|
|
* execID and context are missing.
|
|
*
|
|
* @param {string} _uid is the uid which should be refreshed.
|
|
* @return {boolean} True if the uid is known and can be refreshed, false if unknown and will not be refreshed
|
|
*/
|
|
dataRefreshUID: function (_uid) {
|
|
if (typeof localStorage[_uid] === "undefined") return false;
|
|
|
|
if(typeof registeredCallbacks[_uid] !== "undefined" && registeredCallbacks[_uid].length > 0)
|
|
{
|
|
var _execId = registeredCallbacks[_uid][0].execId;
|
|
// This widget ID MUST be a nextmatch, because the data call is to Etemplate\Widget\Nexmatch
|
|
var nextmatchId = registeredCallbacks[_uid][0].widgetId;
|
|
var uid = _uid.split("::");
|
|
var context = {
|
|
"prefix":uid.shift()
|
|
};
|
|
uid = uid.join("::");
|
|
|
|
// find filters, even if context is not always from nextmatch, eg. caching uses it's a string context
|
|
var filters = {};
|
|
for(var i=0; i < registeredCallbacks[_uid].length; i++)
|
|
{
|
|
var callback = registeredCallbacks[_uid][i];
|
|
if (typeof callback.context == 'object' &&
|
|
typeof callback.context.self == 'object' &&
|
|
typeof callback.context.self._filters == 'object')
|
|
{
|
|
filters = callback.context.self._filters;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// need to send nextmatch filters too, as server-side will merge old version from request otherwise
|
|
this.dataFetch(_execId, {'refresh':uid}, filters, nextmatchId, false, context, [uid]);
|
|
|
|
return true;
|
|
}
|
|
return false;
|
|
},
|
|
|
|
/**
|
|
* Search for exact UID string or regular expression and return widgets using it
|
|
*
|
|
* @param {string|RegExp} _uid is the uid which should be refreshed.
|
|
* @return {object} UID: array of (nextmatch-)wigetIds
|
|
*/
|
|
dataSearchUIDs: function(_uid)
|
|
{
|
|
var matches = {};
|
|
var f = function(_uid)
|
|
{
|
|
if (typeof matches[_uid] == "undefined")
|
|
{
|
|
matches[_uid] = [];
|
|
}
|
|
if (typeof registeredCallbacks[_uid] !== "undefined")
|
|
{
|
|
for(var n=0; n < registeredCallbacks[_uid].length; ++n)
|
|
{
|
|
var callback = registeredCallbacks[_uid][n];
|
|
if (typeof callback.context != "undefined" &&
|
|
typeof callback.context.self != "undefined" &&
|
|
typeof callback.context.self._widget != "undefined")
|
|
{
|
|
matches[_uid].push(callback.context.self._widget);
|
|
}
|
|
}
|
|
}
|
|
};
|
|
if (typeof _uid == "object" && _uid.constructor.name == "RegExp")
|
|
{
|
|
for(var uid in localStorage)
|
|
{
|
|
if (_uid.test(uid))
|
|
{
|
|
f(uid);
|
|
}
|
|
}
|
|
}
|
|
else if (typeof localStorage[_uid] != "undefined")
|
|
{
|
|
f(_uid);
|
|
}
|
|
return matches;
|
|
},
|
|
|
|
/**
|
|
* Search for exact UID string or regular expression and call registered (nextmatch-)widgets refresh function with given _type
|
|
*
|
|
* This method is preferable over dataRefreshUID for app code, as it takes care of things like counters too.
|
|
*
|
|
* It does not do anything for _type="add"!
|
|
*
|
|
* @param {string|RegExp) _uid is the uid which should be refreshed.
|
|
* @param {string} _type "delete", "edit", "update", not useful for "add"!
|
|
* @return {array} (nextmatch-)wigets refreshed
|
|
*/
|
|
dataRefreshUIDs: function(_uid, _type)
|
|
{
|
|
var uids = this.dataSearchUIDs(_uid);
|
|
var widgets = [];
|
|
var uids4widget = [];
|
|
for(var uid in uids)
|
|
{
|
|
for(var n=0; n < uids[uid].length; ++n)
|
|
{
|
|
var widget = uids[uid][n];
|
|
var idx = widgets.indexOf(widget);
|
|
if (idx == -1)
|
|
{
|
|
widgets.push(widget);
|
|
idx = widgets.length-1;
|
|
}
|
|
// uids for nextmatch.refesh do NOT contain the prefix
|
|
var nm_uid = uid.replace(RegExp('^'+widget.controller.dataStorePrefix+'::'), '');
|
|
if (typeof uids4widget[idx] == "undefined")
|
|
{
|
|
uids4widget[idx] = [nm_uid];
|
|
}
|
|
else
|
|
{
|
|
uids4widget[idx].push(nm_uid);
|
|
}
|
|
}
|
|
}
|
|
for(var w=0; w < widgets.length; ++w)
|
|
{
|
|
widgets[w].refresh(uids4widget[w], _type);
|
|
}
|
|
return widgets;
|
|
}
|
|
};
|
|
});
|