columnLabelable date, wrong order

[m4urer]

I have a columnLabel with the format 'dd/mm/yyyy' (my country's date format) and the problem is the column order is wrong, since 29th of june (29/06) is "larger" than 1st of July (01/07) number wise.

Is there a way to tell pivot.js that the column value and the sorting value are not the same??
I tried with a pseudoFunction and a displayFunction with no luck. Can this be done?

Thanks!!

[rwjblue]

Unless I am mistaken (I could be mis-remembering), the sorting in the demo application is actually handled by datatables. They have a bunch of configurable options, and whole section in their documentation on sorting.

See here for details. Please report back and let us know the solution if you fix it.

[m4urer]

The columnLabels is not part of the data of the datatables.
I found the sort function that the columnLabel is using.
In pivot.js you have:

  function populateColumnLabelColumnsResults(columnLabels){
    var keys  = objectKeys(columnLabels).sort(),
        i     = -1,
        m     = keys.length,
        w     = objectKeys(displayFields.summaries).length;
    while (++i < m){
      resultsColumns.push({fieldName: keys[i], width: w, type: 'column'})
    };
    return resultsColumns;
  }

The objectKeys(columnLabels).sort() is using the "natural order" which is the problem for me.
I'll try to patch the code and use a custom sort function when it's needed.
If you have a better idea or some suggestions, be my guest!

Thanks in advanced!

[m4urer]

The solution:

added a sortFunction to my field definition:

{name: 'dateField', type: 'string', filterable: true, pseudo: true,columnLabelable: true, rowLabelable: false,
            pseudoFunction: function(row){
                //my pseudo function
            },
            sortFunction: function(a,b){
                   //my custom sort function
            }
}

And then made some changes to the populateColumnLabelColumnsResults of pivot.js: added a key parameter that has to be added in the method invocation. And then added the first 6 rows and changed the 7th to use sortedKeys.
And that's it!

  function populateColumnLabelColumnsResults(key, columnLabels){
    var sortedKeys; 
    if (fields[key].sortFunction !== undefined){
        sortedKeys = objectKeys(columnLabels).sort(fields[key].sortFunction);
    }else{
                sortedKeys = objectKeys(columnLabels).sort();
        }
    var keys  = sortedKeys,
        i     = -1,
        m     = keys.length,
        w     = objectKeys(displayFields.summaries).length;

    while (++i < m){
      resultsColumns.push({fieldName: keys[i], width: w, type: 'column'})
    };

Now the custom sortFunction gets called when it's defined!
If you want I can make a pull request...

[rwjblue]

Great job! Yes, a pull request would be most welcome.

Robert Jackson

-- twitter: rwjblue
-- github: rjackson

On Jul 12, 2013, at 3:41 PM, m4urer notifications@github.com wrote:

The solution:

added a sortFunction to my field definition:

{name: 'dateField', type: 'string', filterable: true, pseudo: true,columnLabelable: true, rowLabelable: false,
pseudoFunction: function(row){
//my pseudo function
},
sortFunction: function(a,b){
//my custom sort function
}
}
And then made some changes to the populateColumnLabelColumnsResults of pivot.js: added a key parameter that has to be added in the method invocation. And then added the first 6 rows and changed the 7th to use sortedKeys.
And that's it!

function populateColumnLabelColumnsResults(key, columnLabels){
var sortedKeys;
if (fields[key].sortFunction !== undefined){
sortedKeys = objectKeys(columnLabels).sort(fields[key].sortFunction);
}else{
sortedKeys = objectKeys(columnLabels).sort();
}
var keys = sortedKeys,
i = -1,
m = keys.length,
w = objectKeys(displayFields.summaries).length;

while (++i < m){
  resultsColumns.push({fieldName: keys[i], width: w, type: 'column'})
};

Now the custom sortFunction gets called when it's defined!
If you want I can make a pull request...

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[rondale-sc]

This looks good. Once @rjackson gets a chance to look at it we'll merge it in.