I am using jQuery gridster and saving the positions in database. I also have a general add new button for adding new gridster and a delete button in each gridster to delete it. I am using ajax call when user moves, adds or deletes. In database there is a user_id and a jsonstring field. When user drags or click delete/add, I am taking all the gridsters, create a json string and save it to database.
Add new code:
$(document).on('click', '.add-new', function(){
gridster.add_widget(html); // html code for GS is saved in html variable
savegs();
})
Delete code
$(document).on('click', 'a.ak-delete', function(){
gridster.remove_widget($(this).parents('li.gs_w'));
// I am calling the same save function for delete
savegs();
})
save gridster code:
function savegs(){
var saveJson = "";
$('.gridster > ul > li.gs_w').each(function (){
var $item = $(this);
var col = $item.data('col');
var row = $item.data('row');
var sizex = $item.data('sizex');
var sizey = $item.data('sizey');
var saveJson += -------- -------;// generate json
});
// then i generate a json string in the loop above
}
The add new functionality works just fine. but delete has a problem. It is destroying the item but still getting it in each function. So it is saved in the database. Can anyone tell whats the problem is?
Thanks.
Ok.. after some tweaking, I found a solution. In the delete function, I am adding a class (deleted) to the li (gs_w). Then in savegs function, I am checking if there is a class named (deleted) there. If so, then exclude it from saving. Its funny; but works!
$(document).on('click', 'a.ak-delete', function(){
$(this).parents('li.gs_w').addClass('deleted');
gridster.remove_widget($(this).parents('li.gs_w'));
savegs();
})
function savegs(){
var saveJson = "";
$('.gridster > ul > li.gs_w').each(function (){
if (!$(this).hasClass("deleted")) {
var $item = $(this);
var col = $item.data('col');
var row = $item.data('row');
var sizex = $item.data('sizex');
var sizey = $item.data('sizey');
var saveJson += -------- -------;// generate json
}
});
}