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Refactor huge data fetch into chunks so long task doesn't die.

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This commit is contained in:
Nathan Gray 2014-03-04 20:35:41 +00:00
parent 99e97d2bfc
commit bb3eb717c1
1 changed files with 59 additions and 26 deletions
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85
etemplate/js/et2_extension_nextmatch_actions.js
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@ -106,32 +106,8 @@ function nm_action(_action, _senders, _target, _ids)
// Run a long task once for each ID with a nice dialog instead of
// freezing for a while. If egw_open is set, and only 1 row selected,
// egw_open will be used instead.
if(idsArr.length > 1 || typeof _action.data.egw_open == 'undefined')
{
if(_ids.all)
{
var nextmatch = mgr.data.nextmatch;
if(nextmatch && nextmatch.controller && nextmatch.controller._grid &&nextmatch.controller._grid.getTotalCount() > idsArr.length)
{
// Need to actually fetch all (TODO: just ids) to do this client side
nextmatch.controller.dataFetch({start:0,num_rows:-1}, function(data) {
var idsArr = [];
if(data && data.order)
{
for(var i = 0; i < data.order.length; i++)
{
idsArr[i] = data.order[i].split("::").pop();
}
et2_dialog.long_task(null,_action.data.message||_action.caption,_action.data.title,_action.data.menuaction,idsArr);
}
},_action);
return;
}
}
et2_dialog.long_task(null,_action.data.message||_action.caption,_action.data.title,_action.data.menuaction,idsArr);
break;
}
if(doLongTask(idsArr, _action, mgr)) break;
// Fall through
case 'egw_open':
var params = _action.data.egw_open.split('-'); // type-appname-idNum (idNum is part of id split by :), eg. "edit-infolog"
@ -223,6 +199,63 @@ function nm_action(_action, _senders, _target, _ids)
}
break;
}
function doLongTask(idsArr, _action, mgr)
{
if(idsArr.length > 1 || typeof _action.data.egw_open == 'undefined')
{
if(_ids.all)
{
var nextmatch = mgr.data.nextmatch;
if(nextmatch && nextmatch.controller && nextmatch.controller._grid &&nextmatch.controller._grid.getTotalCount() > idsArr.length)
{
// Need to actually fetch all (TODO: just ids) to do this client side
var idsArr = [];
var count = idsArr.length;
var total = nextmatch.controller._grid.getTotalCount();
var cancel = false;
var dialog = et2_dialog.show_dialog(
// Abort the long task if they canceled the data load
function() {count = total; cancel=true;},
egw.lang('Loading'), egw.lang('please wait...'),{},[
{"button_id": et2_dialog.CANCEL_BUTTON,"text": 'cancel',id: 'dialog[cancel]',image: 'cancel'}
]
);
// dataFetch() is asyncronous, so all these requests just get fired off...
// 200 rows chosen arbitrarily to reduce requests.
do {
nextmatch.controller.dataFetch({start:idsArr.length, num_rows: 200}, function(data) {
if(data && data.order)
{
for(var i = 0; i < data.order.length; i++)
{
idsArr.push(data.order[i].split("::").pop());
}
}
// Update total, just in case it changed
if(data && data.total) total = data.total;
if(idsArr.length >= total)
{
dialog.destroy();
if(!cancel)
{
et2_dialog.long_task(null,_action.data.message||_action.caption,_action.data.title,_action.data.menuaction,idsArr);
}
}
},_action);
count += 200;
} while (count < total)
return true;
}
}
et2_dialog.long_task(null,_action.data.message||_action.caption,_action.data.title,_action.data.menuaction,idsArr);
return true;
}
return false;
}
}
/**