Class: RDO::MySQL::TupleList

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
ext/rdo_mysql/tuples.c

Instance Method Summary collapse

Instance Method Details

#each ⇒ Object

Iterate over all tuples in the list



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# File 'ext/rdo_mysql/tuples.c', line 102

static VALUE rdo_mysql_tuple_list_each(VALUE self) {
  RDOMySQLTupleList * list;
  Data_Get_Struct(self, RDOMySQLTupleList, list);

  if (!rb_block_given_p() || list->res == NULL) {
    return self;
  }

  mysql_data_seek(list->res, 0);

  unsigned int    nfields = mysql_num_fields(list->res);
  MYSQL_FIELD   * fields  = mysql_fetch_fields(list->res);
  MYSQL_ROW       row;

  while ((row = mysql_fetch_row(list->res))) {
    unsigned long * lengths = mysql_fetch_lengths(list->res);
    VALUE           hash    = rb_hash_new();
    unsigned int    i       = 0;

    for (; i < nfields; ++i) {
      rb_hash_aset(hash,
          ID2SYM(rb_intern(fields[i].name)),
          rdo_mysql_cast_value(row[i], lengths[i], fields[i], list->encoding));
    }

    rb_yield(hash);
  }

  return self;
}