bool VkData::LoadCSV(const std::string & f) {
S_LOG("LoadCSV");
using namespace csv;
Parser parser;
Filter filter;
parser.SetFilter(&filter);
static const Parser::Line fields{"Date", "Criterion", "Parameter 1", "Parameter 2", "Value"};
filter.AddRequiredFields(fields);
filter.AddPossibleValue("Criterion", "members");
filter.AddPossibleValues("Parameter 1",{"New members", "Members lost"});
if (!parser.Load(f)) {
log(Log::error) << "VkData::LoadCSV " << "Failed to load file" << Log::endl;
return false;
} else {
if (!parser.FindFields(fields)) {
auto &s = log(Log::error) << "Wrong fields, should be: ";
Parser::PrintFields(fields, s);
s << Log::endl;
return false;
} else {
ParseCSV(parser);
return true;
}
}
}
