/**
* @brief readColumn return all the values on a named column
* @param pFile is the database to be readed from.
* @param pColumnName parameter for returning a value.
* @return
*/
array<char*> readfile::readColumn(string pFile , string pColumnName){
string standardDir;
array <char*> errorArray (ONE_BYTE); //if !database, return null array
if ( !(file.is_open()) ){
standardDir = createNewFile(&pFile);
file.open(standardDir.c_str());
}
if ( !(file.is_open()) ){
cout << "NED " + pFile << endl;
return errorArray;
}
int Column = getColumnNumber(&standardDir , &pColumnName );
int regQty = getRegisterQuantity();
string strToConvert = EMPTY_STRING;
char * toAdd;
array <char*> arrayToReturn (regQty);
for (int rowCounter = ONE_BYTE ; rowCounter <= regQty ; rowCounter++){
strToConvert = readField(pFile , rowCounter , pColumnName);
toAdd = new char[strToConvert.size()+1];
strcpy(toAdd, strToConvert.c_str());
arrayToReturn[rowCounter - ONE_BYTE] = toAdd;
}
return arrayToReturn;
}
/**
* @brief updateColumn From pCname of pFile, replace pToCompare with newData
* @param newData
* @param pToCompare
* @param pFile
* @param pCName
*/
bool writefile::updateColumn(string newData,string pToCompare, string pFile, string pCName){
int currSeek = file.tellg();
int sizeToColumn;
int cSize;
string standardDir;
bool bowl = true;
//Relative route + the name of the file
if ( !(file.is_open()) ){
string fileH = pFile;
standardDir = createNewFile(fileH.c_str());
file.open(standardDir.c_str());
}
if ( !(file.is_open()) ){
cout << "NED " + pFile << endl;
bowl = false;
}
int Column = getColumnNumber(&standardDir , &pCName );
int regQty = getRegisterQuantity();
string currentData = K->EMPTY_STRING;
for (int rowCounter = K->ONE_BYTE ; rowCounter <= regQty ; rowCounter++){
//Move the seek to the column and register.
placeSeekOn( &rowCounter , &Column, &sizeToColumn, &cSize);
//Build the string of the old data
for (int i = 0 ; i < cSize ; i++){
char temp = file.get();
if (temp == '*'){
break;
}else{
currentData.push_back(temp);
}
}
//Compare data.
if (currentData == pToCompare){
updateField(newData, pFile , rowCounter , Column);
}else{
currentData = K->EMPTY_STRING;
}
}
file.seekg(currSeek);
if (file.is_open()){
file.close();
}
return bowl;
}
array< array<char*> > readfile::getRegisters(string pFile, string pColumnName,
string valueToConsult){
string standardDir;
int regs = getRegisterQuantity();
int colNum;
if ( !(file.is_open()) ){
standardDir = createNewFile(&pFile);
file.open(standardDir.c_str());
}
colNum = getColumnNumber(&standardDir, &pColumnName);
array< array<char*> > select (getRegisterQuantity());
for ( int i = ZE_ROW ; i < regs ; i ++){
if(valueToConsult == readField(pFile,i+1,colNum)){
select [i] = readRegistry( pFile , colNum);
}
}
return select;
}
bool writefile::deleteRegister(string pFile, string pCName, string newData){
int currSeek = file.tellg();
int Column;
int cSize;
string standardDir;
bool bowl = true;
//Relative route + the name of the file
if ( !(file.is_open()) ){
standardDir = createNewFile(pFile.c_str());
file.open(standardDir.c_str());
}
if ( !(file.is_open()) ){
cout << "NED " + pFile << endl;
return false;
}
Column = getColumnNumber(&standardDir , &pCName );
cSize = getRegisterSize();
int regQty = getRegisterQuantity();
string voidField = K->EMPTY_STRING;
int sizeToColumn = sizeUntilColumn(Column);
fillString(&voidField,cSize);
cout << voidField.length() <<endl;
for (int rowCounter = K->ONE_BYTE ; rowCounter <= regQty ; rowCounter++){
//Compare data.
if (readField(pFile , rowCounter , Column) == newData){
placeSeekOn(&rowCounter , &Column, &sizeToColumn, &cSize);
if (file.is_open()){
file << voidField;
} else {
bowl = false;
}
}
}
file.seekg(currSeek);
if (file.is_open()){
file.close();
}
return bowl;
}
