Class: Mysql2::Result

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/mysql2/result.rb,
ext/mysql2/result.c

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#server_flagsObject (readonly)

Returns the value of attribute server_flags.



3
4
5
# File 'lib/mysql2/result.rb', line 3

def server_flags
  @server_flags
end

Instance Method Details

#countObject Also known as: size



899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
# File 'ext/mysql2/result.c', line 899

static VALUE rb_mysql_result_count(VALUE self) {
  GET_RESULT(self);

  if (wrapper->is_streaming) {
    /* This is an unsigned long per result.h */
    return ULONG2NUM(wrapper->numberOfRows);
  }

  if (wrapper->resultFreed) {
    /* Ruby arrays have platform signed long length */
    return LONG2NUM(RARRAY_LEN(wrapper->rows));
  } else {
    /* MySQL returns an unsigned 64-bit long here */
    if (wrapper->stmt_wrapper) {
      return ULL2NUM(mysql_stmt_num_rows(wrapper->stmt_wrapper->stmt));
    } else {
      return ULL2NUM(mysql_num_rows(wrapper->result));
    }
  }
}

#each(*args) ⇒ Object



808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
# File 'ext/mysql2/result.c', line 808

static VALUE rb_mysql_result_each(int argc, VALUE * argv, VALUE self) {
  result_each_args args;
  VALUE defaults, opts, block, (*fetch_row_func)(VALUE, MYSQL_FIELD *fields, const result_each_args *args);
  ID db_timezone, app_timezone, dbTz, appTz;
  int symbolizeKeys, asArray, castBool, cacheRows, cast;

  GET_RESULT(self);

  if (wrapper->stmt_wrapper && wrapper->stmt_wrapper->closed) {
    rb_raise(cMysql2Error, "Statement handle already closed");
  }

  defaults = rb_iv_get(self, "@query_options");
  Check_Type(defaults, T_HASH);
  if (rb_scan_args(argc, argv, "01&", &opts, &block) == 1) {
    opts = rb_funcall(defaults, intern_merge, 1, opts);
  } else {
    opts = defaults;
  }

  symbolizeKeys = RTEST(rb_hash_aref(opts, sym_symbolize_keys));
  asArray       = rb_hash_aref(opts, sym_as) == sym_array;
  castBool      = RTEST(rb_hash_aref(opts, sym_cast_booleans));
  cacheRows     = RTEST(rb_hash_aref(opts, sym_cache_rows));
  cast          = RTEST(rb_hash_aref(opts, sym_cast));

  if (wrapper->is_streaming && cacheRows) {
    rb_warn(":cache_rows is ignored if :stream is true");
  }

  if (wrapper->stmt_wrapper && !cacheRows && !wrapper->is_streaming) {
    rb_warn(":cache_rows is forced for prepared statements (if not streaming)");
    cacheRows = 1;
  }

  if (wrapper->stmt_wrapper && !cast) {
    rb_warn(":cast is forced for prepared statements");
  }

  dbTz = rb_hash_aref(opts, sym_database_timezone);
  if (dbTz == sym_local) {
    db_timezone = intern_local;
  } else if (dbTz == sym_utc) {
    db_timezone = intern_utc;
  } else {
    if (!NIL_P(dbTz)) {
      rb_warn(":database_timezone option must be :utc or :local - defaulting to :local");
    }
    db_timezone = intern_local;
  }

  appTz = rb_hash_aref(opts, sym_application_timezone);
  if (appTz == sym_local) {
    app_timezone = intern_local;
  } else if (appTz == sym_utc) {
    app_timezone = intern_utc;
  } else {
    app_timezone = Qnil;
  }

  if (wrapper->rows == Qnil && !wrapper->is_streaming) {
    wrapper->numberOfRows = wrapper->stmt_wrapper ? mysql_stmt_num_rows(wrapper->stmt_wrapper->stmt) : mysql_num_rows(wrapper->result);
    wrapper->rows = rb_ary_new2(wrapper->numberOfRows);
  } else if (wrapper->rows && !cacheRows) {
    if (wrapper->resultFreed) {
      rb_raise(cMysql2Error, "Result set has already been freed");
    }
    mysql_data_seek(wrapper->result, 0);
    wrapper->lastRowProcessed = 0;
    wrapper->rows = rb_ary_new2(wrapper->numberOfRows);
  }

  // Backward compat
  args.symbolizeKeys = symbolizeKeys;
  args.asArray = asArray;
  args.castBool = castBool;
  args.cacheRows = cacheRows;
  args.cast = cast;
  args.db_timezone = db_timezone;
  args.app_timezone = app_timezone;
  args.block_given = block;

  if (wrapper->stmt_wrapper) {
    fetch_row_func = rb_mysql_result_fetch_row_stmt;
  } else {
    fetch_row_func = rb_mysql_result_fetch_row;
  }

  return rb_mysql_result_each_(self, fetch_row_func, &args);
}

#fieldsObject



690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
# File 'ext/mysql2/result.c', line 690

static VALUE rb_mysql_result_fetch_fields(VALUE self) {
  unsigned int i = 0;
  short int symbolizeKeys = 0;
  VALUE defaults;

  GET_RESULT(self);

  defaults = rb_iv_get(self, "@query_options");
  Check_Type(defaults, T_HASH);
  if (rb_hash_aref(defaults, sym_symbolize_keys) == Qtrue) {
    symbolizeKeys = 1;
  }

  if (wrapper->fields == Qnil) {
    wrapper->numberOfFields = mysql_num_fields(wrapper->result);
    wrapper->fields = rb_ary_new2(wrapper->numberOfFields);
  }

  if ((my_ulonglong)RARRAY_LEN(wrapper->fields) != wrapper->numberOfFields) {
    for (i=0; i<wrapper->numberOfFields; i++) {
      rb_mysql_result_fetch_field(self, i, symbolizeKeys);
    }
  }

  return wrapper->fields;
}

#freeObject



114
115
116
117
118
# File 'ext/mysql2/result.c', line 114

static VALUE rb_mysql_result_free_(VALUE self) {
  GET_RESULT(self);
  rb_mysql_result_free_result(wrapper);
  return Qnil;
}