CsvUtil.h File Reference

#include <iostream>

Go to the source code of this file.

Namespaces
	Wt

Functions
void	readFromCsv (std::istream &f, std::shared_ptr< WAbstractItemModel > model, int numRows=-1, bool firstLineIsHeaders=true)
std::shared_ptr< WStandardItemModel >	csvToModel (const std::string &csvFile, bool firstLineIsHeader=true)

Function Documentation

csvToModel()

std::shared_ptr<WStandardItemModel> csvToModel	(	const std::string &	csvFile,
		bool	firstLineIsHeader = true
	)

Definition at line 40 of file CsvUtil.C.

{
  std::ifstream f(csvFile.c_str());
 
  if (f) {
    std::shared_ptr<WStandardItemModel> result = std::make_shared<WStandardItemModel>(0, 0);
    result->setItemPrototype(std::make_unique<NumericItem>());
    readFromCsv(f, result, -1, firstLineIsHeaders);
    return result;
  } else
    return nullptr;
}

readFromCsv()

void readFromCsv	(	std::istream &	f,
		std::shared_ptr< WAbstractItemModel >	model,
		int	numRows = -1,
		bool	firstLineIsHeaders = true
	)

Definition at line 54 of file CsvUtil.C.

{
  int csvRow = 0;
 
  while (f) {
    std::string line;
    getline(f, line);
 
    if (f) {
      typedef boost::tokenizer<boost::escaped_list_separator<char> >
        CsvTokenizer;
      CsvTokenizer tok(line);
 
      int col = 0;
      for (CsvTokenizer::iterator i = tok.begin();
           i != tok.end(); ++i, ++col) {
 
        if (col >= model->columnCount())
          model->insertColumns(model->columnCount(),
                               col + 1 - model->columnCount());
 
        if (firstLineIsHeaders && csvRow == 0)
          model->setHeaderData(col, cpp17::any{WString{*i}});
        else {
          int dataRow = firstLineIsHeaders ? csvRow - 1 : csvRow;
 
          if (numRows != -1 && dataRow >= numRows)
            return;
 
          if (dataRow >= model->rowCount())
            model->insertRows(model->rowCount(),
                              dataRow + 1 - model->rowCount());
 
          cpp17::any data{WString{*i}};
          model->setData(dataRow, col, data);
        }
      }
    }
 
    ++csvRow;
  }
}