If it is sending a blank request it should almost certainly be a client side error. You will probably have better luck debugging this than I because I have not been able to recreate this bug.
Does the console report that the save succeeded or failed? Can you copy and paste the request headers and parameters and response here please?
You could also try redefining DBTableEditor.save to have more logging by pasting this into the console before clicking the save button:
DBTableEditor.save = function(){
console.log("DBTE Save");
if (Slick.GlobalEditorLock.isActive() && !Slick.GlobalEditorLock.commitCurrentEdit())
return;
jQuery('button.save').attr("disabled", "disabled");
var src = jQuery('button.save img').attr('src');
jQuery('button.save img').attr('src',src.replace('accept.png','loading.gif'));
// the last time we modified a row should contain all the final modifications
var it,h = {},i,r, toSave=[], rows=[], mod = DBTableEditor.modifiedRows.slice(0), modified;
while(( r = mod.pop() )){
var column = DBTableEditor.data.columns[r.cell];
// console.log(column, r.cell);
if(column && column.isDate){
r.item[r.cell-1] = DBTableEditor.toISO8601(r.item[r.cell-1], true);
//console.log('Saving date', r.item, r.cell, column, r.item[r.cell-1]);
}
// cells have a delete idx to be removed
if((it = h[r.item.id])){
it.modifiedIdxs.push(r.cell-1);
continue;
}
r.item.modifiedIdxs = [r.cell-1];
h[r.item.id] = r.item;
// the extend ensures we send object json which includes ".id"
// instead of array json which elides it
toSave.push(jQuery.extend({}, DBTableEditor.default_values, r.item));
rows.push(r.item);
}
console.log('We are trying to save: ', toSave);
var cols = DBTableEditor.data.columns.map(function(c){return c.originalName;});
cols.shift(); // remove buttons
var toSend = JSON.stringify({
modifiedIdxs:toSave.map(function(it){return it.modifiedIdxs;}),
columns:cols,
rows:toSave
});
console.log('Firing Request');
jQuery.post(ajaxurl,
jQuery.extend({},DBTableEditor.query,DBTableEditor.hashQuery,
{action:'dbte_save',
data:toSend,
table:DBTableEditor.id}))
.success(DBTableEditor.makeSaveCB(rows))
.error(DBTableEditor.saveFailCB);
};
