从yui数据表导出数据

这样怎么样:

function dataTableAsCSV (myDataTable) {

    var i, j, oData, newWin = window.open(),
        aRecs = myDataTable.getRecordSet().getRecords(),
        aCols = myDataTable.getColumnSet().keys;

    newWin.document.write("<pre>");

    for (i=0; i<aRecs.length; i++) {
        oData = aRecs[i].getData();

        for (j=0; j<aCols.length; j++) {
            newWin.document.write( oData[aCols[j].key] + "\t");

        }
        newWin.document.write("\n");

    }

    newWin.document.write("</pre>n");
    newWin.document.close();
}

它将把数据表内容作为tsv呈现到一个新窗口中。它不处理包含制表符的数据,但这只是在 oData[aCols[j].key] .

上面的答案对3.4版之前的yui非常有用。但是,数据表是从3.5版开始重构的。我的转换器将单元格值用双引号括起来,在单元格值中转义双引号,并处理一级列嵌套(如果存在)。

这是一把小提琴,演示我的转换器: http://jsfiddle.net/geocolumbus/AFB3h/3/

// Function to convert a DataTable with zero or one nested columns to CSV
function convertToCSV(myDataTable) {
    var col,
    colIndex = 0,
        colKey,
        rowString,
        ret,
        cell,
        headerString = "";

    while (col = myDataTable.getColumn(colIndex++)) {
        if (col.children == null) {
            headerString += '"' + col.key + '",';
        } else {
            Y.Array.each(col.children, function (child) {
                headerString += '"' + child.key + '",';
            });
        }
    }
    ret = headerString.replace(/,$/, '\n');

    Y.Array.each(myDataTable.data.toJSON(), function (item) {
        colIndex = 0;
        rowString = "";
        while (col = myDataTable.getColumn(colIndex++)) {
            if (col.children == null) {
                cell = item[col.key].replace(/"/g, "\\\"");
                rowString += '"' + cell + '",';
            } else {
                Y.Array.each(col.children, function (child) {
                    cell = item[child.key].replace(/"/g, "\\\"");
                    rowString += '"' + cell + '",';
                });
            }
        }
        ret += rowString.replace(/,$/, '') + "\n";
    });

    return ret;
}