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Paginate fetching missing selected rows, limit fetch to 1000 rows

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nathangray 2018-07-17 16:56:58 -06:00 committed by Hadi Nategh
parent 6d51f91842
commit 9c3ff2182e
1 changed files with 82 additions and 25 deletions
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107
api/js/etemplate/et2_dataview_controller_selection.js
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@ -29,6 +29,11 @@
*/
var et2_dataview_selectionManager = (function(){ "use strict"; return Class.extend(
{
// Maximum number of rows we can safely fetch for selection
// Actual selection may have more rows if we already have some
MAX_SELECTION: 1000,
/**
* Constructor
*
@ -112,7 +117,9 @@ var et2_dataview_selectionManager = (function(){ "use strict"; return Class.exte
{
this._actionObjectManager.clear();
}
this._indexMap = {};
for (key in this._indexMap) {
delete this._indexMap[key];
}
this._total = 0;
this._focusedEntry = null;
this._invertSelection = false;
@ -238,7 +245,8 @@ var et2_dataview_selectionManager = (function(){ "use strict"; return Class.exte
this._selectAll = true;
if(Object.keys(this._registeredRows).length != this._total)
// Run as a range if there's less then the max
if(Object.keys(this._registeredRows).length != this._total && this._total <= this.MAX_SELECTION)
{
this._selectRange(0, this._total);
}
@ -543,6 +551,8 @@ var et2_dataview_selectionManager = (function(){ "use strict"; return Class.exte
var naStart = false;
var s = Math.min(_start, _stop);
var e = Math.max(_stop, _start);
var RANGE_MAX = 50;
var range_break = s + RANGE_MAX;
for (var i = s; i <= e; i++)
{
if (typeof this._indexMap[i] !== "undefined" &&
@ -558,6 +568,12 @@ var et2_dataview_selectionManager = (function(){ "use strict"; return Class.exte
// Select the element
this.setSelected(this._indexMap[i].uid, true);
}
else if(i >= range_break)
{
queryRanges.push(et2_bounds(naStart ? naStart : s, i - 1));
naStart = i;
range_break += RANGE_MAX;
}
else if (naStart === false)
{
naStart = i;
@ -572,32 +588,73 @@ var et2_dataview_selectionManager = (function(){ "use strict"; return Class.exte
}
// Query all unknown ranges from the server
var that = this;
this._fetchPromise = new Promise(function (resolve)
{
var count = queryRanges.length;
for (var i = 0; i < queryRanges.length; i++)
{
that._queryRangeCallback.call(that._context, queryRanges[i],
function (_order) {
for (var j = 0; j < _order.length; j++)
{
this.setSelected(_order[j], true);
}
if(--count <= 0)
{
// Done waiting
resolve();
}
}, that);
}
}).finally(function() {egw.loading_prompt('select_wait', false)});
if(queryRanges.length > 0)
{
// Lock the UI - we NEED these before the user does something with them
egw.loading_prompt('select_wait', true);
this._query_ranges(queryRanges);
}
},
_query_ranges: function _query_ranges(queryRanges)
{
var that = this;
var record_count = 0;
var range_index = 0;
var range_count = queryRanges.length;
var cont = true;
var fetchPromise = new Promise(function (resolve) {
resolve();
});
// Found after dialog loads
var progressbar;
var parent = et2_dialog._create_parent();
var dialog = et2_createWidget("dialog", {
callback:
// Abort the long task if they canceled the data load
function() {cont = false},
template: egw.webserverUrl+'/api/templates/default/long_task.xet',
message: egw.lang('Loading'),
title: egw.lang('please wait...'),
buttons: [{"button_id": et2_dialog.CANCEL_BUTTON,"text": 'cancel',id: 'dialog[cancel]',image: 'cancel'}],
width: 300
}, parent);
jQuery(dialog.template.DOMContainer).on('load', function() {
// Get access to template widgets
progressbar = dialog.template.widgetContainer.getWidgetById('progressbar');
});
for (var i = 0; i < queryRanges.length; i++)
{
if(record_count + (queryRanges[i].bottom - queryRanges[i].top+1) > that.MAX_SELECTION)
{
egw.message(egw.lang('Too many rows selected.<br />Select all, or less than %1 rows', that.MAX_SELECTION));
break;
}
else
{
record_count += (queryRanges[i].bottom - queryRanges[i].top+1);
fetchPromise = fetchPromise.then((function ()
{
// Check for abort
if(!cont) return;
return new Promise(function(resolve) {
that._queryRangeCallback.call(that._context, this,
function (_order) {
for (var j = 0; j < _order.length; j++)
{
this.setSelected(_order[j], true);
}
progressbar.set_value(100*(++range_index/range_count));
resolve();
}, that);
}.bind(this));
}).bind(queryRanges[i]));
}
}
fetchPromise.finally(function() {
dialog.destroy();
});
}
});}).call(this);