Mozilla/mozilla/extensions/sql/odbc/src/mozSqlResultODBC.cpp

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 *
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 *
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#include "prprf.h"
#include "nsReadableUtils.h"
#include "mozSqlResultODBC.h"

mozSqlResultODBC::mozSqlResultODBC(mozISqlConnection* aConnection,
                                   const nsAString& aQuery)
  : mozSqlResult(aConnection, aQuery),
    mResult(nsnull)
{
}

void
mozSqlResultODBC::SetResult(SQLHSTMT aResult)
{
  mResult = aResult;
}

mozSqlResultODBC::~mozSqlResultODBC()
{
  ClearNativeResult();
}

NS_IMPL_ADDREF_INHERITED(mozSqlResultODBC, mozSqlResult)
NS_IMPL_RELEASE_INHERITED(mozSqlResultODBC, mozSqlResult)

// QueryInterface
NS_INTERFACE_MAP_BEGIN(mozSqlResultODBC)
  NS_INTERFACE_MAP_ENTRY(mozISqlResultODBC)
NS_INTERFACE_MAP_END_INHERITING(mozSqlResult)

PRInt32
mozSqlResultODBC::GetColType(PRInt32 aColumnIndex)
{
  switch (aColumnIndex){
    case SQL_INTEGER:
    case SQL_NUMERIC:
    case SQL_SMALLINT:
    case SQL_REAL:
      return mozISqlResult::TYPE_INT;

    case SQL_FLOAT:
    case SQL_DOUBLE:
      return mozISqlResult::TYPE_FLOAT;

    case SQL_DECIMAL:
      return mozISqlResult::TYPE_DECIMAL;

    case SQL_TYPE_DATE:
      return mozISqlResult::TYPE_DATE;

    case SQL_TYPE_TIME:
      return mozISqlResult::TYPE_TIME;

    case SQL_DATETIME:
      return mozISqlResult::TYPE_DATETIME;

    default:
      return mozISqlResult::TYPE_STRING;
  }
}

nsresult
mozSqlResultODBC::BuildColumnInfo()
{
  SQLSMALLINT count;
  SQLNumResultCols(mResult,&count);

  for (PRInt32 i = 0, l = count; i < l; i++) {

    SQLCHAR     colname[512];
    SQLSMALLINT coltype;

    SQLDescribeCol(mResult, i + 1, colname, sizeof(colname), NULL, &coltype, NULL, NULL, NULL);

    char* n = (char*) colname;

    PRUnichar* name = ToNewUnicode(nsDependentCString(n));
    PRInt32 type = GetColType(coltype);

    nsCAutoString uri(NS_LITERAL_CSTRING("http://www.mozilla.org/SQL-rdf#"));
    uri.Append(n);

    nsCOMPtr<nsIRDFResource> property;
    gRDFService->GetResource(uri, getter_AddRefs(property));

    ColumnInfo* columnInfo = ColumnInfo::Create(mAllocator, name, type,
                                                (PRInt32) 0-1, (PRInt32) 0-1,
                                                (PRInt32) 0-1, property);
    mColumnInfo.AppendElement(columnInfo);

  }

  return NS_OK;
}

nsresult
mozSqlResultODBC::BuildRows()
{
  while (SQL_SUCCEEDED(SQLFetch(mResult))) {
    nsCOMPtr<nsIRDFResource> resource;
    nsresult rv = gRDFService->GetAnonymousResource(getter_AddRefs(resource));
    if (NS_FAILED(rv)) return rv;

    Row* row = Row::Create(mAllocator, resource, mColumnInfo);

    for (PRInt32 j = 0; j < mColumnInfo.Count(); j++) {
      SQLINTEGER indicator;
      SQLCHAR buf[512];
      if(SQL_SUCCEEDED(SQLGetData(mResult, j+1, SQL_C_TCHAR, buf, sizeof(buf), &indicator)) && indicator != SQL_NULL_DATA) {
        char* value = (char*)buf;
        Cell* cell = row->mCells[j];
        cell->SetNull(PR_FALSE);
        PRInt32 type = cell->GetType();
        if (type == mozISqlResult::TYPE_STRING)
          cell->SetString(ToNewUnicode(nsDependentCString(value)));
        else if (type == mozISqlResult::TYPE_INT)
          PR_sscanf(value, "%d", &cell->mInt);
        else if (type == mozISqlResult::TYPE_FLOAT)
          PR_sscanf(value, "%f", &cell->mFloat);
        else if (type == mozISqlResult::TYPE_DECIMAL)
          PR_sscanf(value, "%f", &cell->mFloat);
        else if (type == mozISqlResult::TYPE_DATE ||
                 type == mozISqlResult::TYPE_TIME ||
                 type == mozISqlResult::TYPE_DATETIME)
          PR_ParseTimeString(value, PR_FALSE, &cell->mDate);
        else if (type == mozISqlResult::TYPE_BOOL)
          cell->mBool = !strcmp(value, "t");

      }
    }

    mRows.AppendElement(row);
    nsVoidKey key(resource);
    mSources.Put(&key, row);
  }

  return NS_OK;
}

void
mozSqlResultODBC::ClearNativeResult()
{
  if (mResult) {
    SQLFreeHandle(SQL_HANDLE_STMT, mResult);
    mResult = nsnull;
  }
}

nsresult
mozSqlResultODBC::CanInsert(PRBool* _retval)
{
  return PR_TRUE;
}

nsresult
mozSqlResultODBC::CanUpdate(PRBool* _retval)
{
  return PR_TRUE;
}

nsresult
mozSqlResultODBC::CanDelete(PRBool* _retval)
{
  return PR_TRUE;
}