Work at Primefaces Extensions Custom Exporter - jsf

Question

I have some dataTables on the web page and I'd like to export all to an excel file, like the web page images:
I'd like to export the footer like showed in page. I try to use rendered and exportable,both with boolean attribute, but no way.
What might be the reason of such behaviour?

Answer 1

I use the customExport, doing the steps on the link Steps to Custom Exporter
When I debug the code, I see the mode to create the footers on the document exporter, which it's not consist the tag exportable (isExportable()). Into the method "tableColumnGroup(Sheet sheet, DataTable table, String facetType){", of the class ExcelCustomExporter, I need to add an if: "if(column.isExportable()){" to create a cell and add value to this, and another if, the same way, to increment the variable using in the method for(i++); only the if is true I create the cell, add value and increment the variable i.
See below the code modified:
protected void tableColumnGroup(Sheet sheet, DataTable table, String facetType) {
ColumnGroup cg = table.getColumnGroup(facetType);
List<UIComponent> headerComponentList = null;
if (cg != null) {
headerComponentList = cg.getChildren();
}
if (headerComponentList != null) {
for (UIComponent component : headerComponentList) {
if (component instanceof org.primefaces.component.row.Row) {
org.primefaces.component.row.Row row = (org.primefaces.component.row.Row) component;
int sheetRowIndex = sheet.getLastRowNum() + 1;
Row xlRow = sheet.createRow(sheetRowIndex);
int i = 0;
for (UIComponent rowComponent : row.getChildren()) {
UIColumn column = (UIColumn) rowComponent;
String value = null;
if (facetType.equalsIgnoreCase("header")) {
value = column.getHeaderText();
} else {
value = column.getFooterText();
}
int rowSpan = column.getRowspan();
int colSpan = column.getColspan();
Cell cell = xlRow.getCell(i);
if (rowSpan > 1 || colSpan > 1) {
if (rowSpan > 1) {
cell = xlRow.createCell((short) i);
Boolean rowSpanFlag = false;
for (int j = 0; j < sheet.getNumMergedRegions(); j++) {
CellRangeAddress merged = sheet.getMergedRegion(j);
if (merged.isInRange(sheetRowIndex, i)) {
rowSpanFlag = true;
}
}
if (!rowSpanFlag) {
cell.setCellValue(value);
cell.setCellStyle(facetStyle);
sheet.addMergedRegion(new CellRangeAddress(
sheetRowIndex, //first row (0-based)
sheetRowIndex + (rowSpan - 1), //last row (0-based)
i, //first column (0-based)
i //last column (0-based)
));
}
}
if (colSpan > 1) {
cell = xlRow.createCell((short) i);
for (int j = 0; j < sheet.getNumMergedRegions(); j++) {
CellRangeAddress merged = sheet.getMergedRegion(j);
if (merged.isInRange(sheetRowIndex, i)) {
cell = xlRow.createCell((short) ++i);
}
}
cell.setCellValue(value);
cell.setCellStyle(facetStyle);
sheet.addMergedRegion(new CellRangeAddress(
sheetRowIndex, //first row (0-based)
sheetRowIndex, //last row (0-based)
i, //first column (0-based)
i + (colSpan - 1) //last column (0-based)
));
i = i + colSpan - 1;
}
} else {
//TODO TRATAR E VERIRIFICAR SE O VALUE PODE SER EXIBIDO
if (column.isExportable()) {
cell = xlRow.createCell((short) i);
for (int j = 0; j < sheet.getNumMergedRegions(); j++) {
CellRangeAddress merged = sheet.getMergedRegion(j);
if (merged.isInRange(sheetRowIndex, i)) {
cell = xlRow.createCell((short) ++i);
}
}
cell.setCellValue(value);
cell.setCellStyle(facetStyle);
}
}
if (column.isExportable()) {
i++;
}
}
}
}
}
Screnshoot, but the JAN to MAY: