Class: Mysql::Stmt

Inherits:
Object
  • Object
show all
Defined in:
ext/mysql_api/mysql.c

Constant Summary collapse

ATTR_UPDATE_MAX_LENGTH =
INT2NUM(STMT_ATTR_UPDATE_MAX_LENGTH)

Instance Method Summary collapse

Instance Method Details

#affected_rowsObject

affected_rows()



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# File 'ext/mysql_api/mysql.c', line 1265

static VALUE stmt_affected_rows(VALUE obj)
{
    struct mysql_stmt* s = DATA_PTR(obj);
    my_ulonglong n;
    check_stmt_closed(obj);
    n = mysql_stmt_affected_rows(s->stmt);
    return ULL2NUM(n);
}

#attr_get(opt) ⇒ Object

attr_get(option)



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# File 'ext/mysql_api/mysql.c', line 1276

static VALUE stmt_attr_get(VALUE obj, VALUE opt)
{
    struct mysql_stmt* s = DATA_PTR(obj);
    check_stmt_closed(obj);
    if (NUM2INT(opt) == STMT_ATTR_UPDATE_MAX_LENGTH) {
	my_bool arg;
	mysql_stmt_attr_get(s->stmt, STMT_ATTR_UPDATE_MAX_LENGTH, &arg);
	return arg == 1 ? Qtrue : Qfalse;
    }
    rb_raise(eMysql, "unknown option: %d", NUM2INT(opt));
}

#attr_set(opt, val) ⇒ Object

attr_set(option, arg)



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# File 'ext/mysql_api/mysql.c', line 1289

static VALUE stmt_attr_set(VALUE obj, VALUE opt, VALUE val)
{
    struct mysql_stmt* s = DATA_PTR(obj);
    check_stmt_closed(obj);
    if (NUM2INT(opt) == STMT_ATTR_UPDATE_MAX_LENGTH) {
	my_bool arg;
	arg = (val == Qnil || val == Qfalse) ? 0 : 1;
	mysql_stmt_attr_set(s->stmt, STMT_ATTR_UPDATE_MAX_LENGTH, &arg);
	return obj;
    }
    rb_raise(eMysql, "unknown option: %d", NUM2INT(opt));
}

#bind_result(*args) ⇒ Object

bind_result(bind,…)



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# File 'ext/mysql_api/mysql.c', line 1304

static VALUE stmt_bind_result(int argc, VALUE *argv, VALUE obj)
{
    struct mysql_stmt* s = DATA_PTR(obj);
    int i;
    MYSQL_FIELD *field;

    check_stmt_closed(obj);
    if (argc != s->result.n)
	rb_raise(eMysql, "bind_result: result value count(%d) != number of argument(%d)", s->result.n, argc);
    for (i = 0; i < argc; i++) {
	if (argv[i] == Qnil || argv[i] == rb_cNilClass) {
	    field = mysql_fetch_fields(s->res);
            s->result.bind[i].buffer_type = field[i].type;
	}
	else if (argv[i] == rb_cString)
	    s->result.bind[i].buffer_type = MYSQL_TYPE_STRING;
	else if (argv[i] == rb_cNumeric || argv[i] == rb_cInteger || argv[i] == rb_cFixnum)
	    s->result.bind[i].buffer_type = MYSQL_TYPE_LONGLONG;
	else if (argv[i] == rb_cFloat)
	    s->result.bind[i].buffer_type = MYSQL_TYPE_DOUBLE;
	else if (argv[i] == cMysqlTime)
	    s->result.bind[i].buffer_type = MYSQL_TYPE_DATETIME;
	else
	    rb_raise(rb_eTypeError, "unrecognized class: %s", RSTRING_PTR(rb_inspect(argv[i])));
	if (mysql_stmt_bind_result(s->stmt, s->result.bind))
	    mysql_stmt_raise(s->stmt);
    }
    return obj;
}

#closeObject

close()



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# File 'ext/mysql_api/mysql.c', line 1335

static VALUE stmt_close(VALUE obj)
{
    struct mysql_stmt* s = DATA_PTR(obj);
    check_stmt_closed(obj);
    mysql_stmt_close(s->stmt);
    s->closed = Qtrue;
    return Qnil;
}

#data_seek(offset) ⇒ Object

data_seek(offset)



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# File 'ext/mysql_api/mysql.c', line 1345

static VALUE stmt_data_seek(VALUE obj, VALUE offset)
{
    struct mysql_stmt* s = DATA_PTR(obj);
    check_stmt_closed(obj);
    mysql_stmt_data_seek(s->stmt, NUM2INT(offset));
    return obj;
}

#eachObject

each …



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# File 'ext/mysql_api/mysql.c', line 1588

static VALUE stmt_each(VALUE obj)
{
    VALUE row;
    check_stmt_closed(obj);
    while ((row = stmt_fetch(obj)) != Qnil)
	rb_yield(row);
    return obj;
}

#execute(*args) ⇒ Object

execute(arg,…)



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# File 'ext/mysql_api/mysql.c', line 1354

static VALUE stmt_execute(int argc, VALUE *argv, VALUE obj)
{
    struct mysql_stmt *s = DATA_PTR(obj);
    MYSQL_STMT *stmt = s->stmt;
    int i;

    check_stmt_closed(obj);
    free_execute_memory(s);
    if (s->param.n != argc)
	rb_raise(eMysql, "execute: param_count(%d) != number of argument(%d)", s->param.n, argc);
    if (argc > 0) {
        memset(s->param.bind, 0, sizeof(*(s->param.bind))*argc);
        for (i = 0; i < argc; i++) {
            switch (TYPE(argv[i])) {
            case T_NIL:
                s->param.bind[i].buffer_type = MYSQL_TYPE_NULL;
                break;
            case T_FIXNUM:
#if SIZEOF_INT < SIZEOF_LONG
                s->param.bind[i].buffer_type = MYSQL_TYPE_LONGLONG;
                s->param.bind[i].buffer = &(s->param.buffer[i]);
                *(LONG_LONG*)(s->param.bind[i].buffer) = FIX2LONG(argv[i]);
#else
                s->param.bind[i].buffer_type = MYSQL_TYPE_LONG;
                s->param.bind[i].buffer = &(s->param.buffer[i]);
                *(int*)(s->param.bind[i].buffer) = FIX2INT(argv[i]);
#endif
                break;
            case T_BIGNUM:
                s->param.bind[i].buffer_type = MYSQL_TYPE_LONGLONG;
                s->param.bind[i].buffer = &(s->param.buffer[i]);
                *(LONG_LONG*)(s->param.bind[i].buffer) = rb_big2ll(argv[i]);
                break;
            case T_FLOAT:
                s->param.bind[i].buffer_type = MYSQL_TYPE_DOUBLE;
                s->param.bind[i].buffer = &(s->param.buffer[i]);
                *(double*)(s->param.bind[i].buffer) = NUM2DBL(argv[i]);
                break;
            case T_STRING:
                s->param.bind[i].buffer_type = MYSQL_TYPE_STRING;
                s->param.bind[i].buffer = RSTRING_PTR(argv[i]);
                s->param.bind[i].buffer_length = RSTRING_LEN(argv[i]);
                s->param.length[i] = RSTRING_LEN(argv[i]);
                s->param.bind[i].length = &(s->param.length[i]);
                break;
            default:
                if (CLASS_OF(argv[i]) == rb_cTime) {
                    MYSQL_TIME t;
                    VALUE a = rb_funcall(argv[i], rb_intern("to_a"), 0);
                    s->param.bind[i].buffer_type = MYSQL_TYPE_DATETIME;
                    s->param.bind[i].buffer = &(s->param.buffer[i]);
                    memset(&t, 0, sizeof(t));    /* avoid warning */
                    t.second_part = 0;
                    t.neg = 0;
                    t.second = FIX2INT(RARRAY_PTR(a)[0]);
                    t.minute = FIX2INT(RARRAY_PTR(a)[1]);
                    t.hour = FIX2INT(RARRAY_PTR(a)[2]);
                    t.day = FIX2INT(RARRAY_PTR(a)[3]);
                    t.month = FIX2INT(RARRAY_PTR(a)[4]);
                    t.year = FIX2INT(RARRAY_PTR(a)[5]);
                    *(MYSQL_TIME*)&(s->param.buffer[i]) = t;
                } else if (CLASS_OF(argv[i]) == cMysqlTime) {
                    MYSQL_TIME t;
                    s->param.bind[i].buffer_type = MYSQL_TYPE_DATETIME;
                    s->param.bind[i].buffer = &(s->param.buffer[i]);
                    memset(&t, 0, sizeof(t));    /* avoid warning */
                    t.second_part = 0;
                    t.neg = 0;
                    t.second = NUM2INT(rb_iv_get(argv[i], "second"));
                    t.minute = NUM2INT(rb_iv_get(argv[i], "minute"));
                    t.hour = NUM2INT(rb_iv_get(argv[i], "hour"));
                    t.day = NUM2INT(rb_iv_get(argv[i], "day"));
                    t.month = NUM2INT(rb_iv_get(argv[i], "month"));
                    t.year = NUM2INT(rb_iv_get(argv[i], "year"));
                    *(MYSQL_TIME*)&(s->param.buffer[i]) = t;
                } else
                    rb_raise(rb_eTypeError, "unsupported type: %d", TYPE(argv[i]));
            }
        }
        if (mysql_stmt_bind_param(stmt, s->param.bind))
            mysql_stmt_raise(stmt);
    }

    if (mysql_stmt_execute(stmt))
	mysql_stmt_raise(stmt);
    if (s->res) {
	MYSQL_FIELD *field;
	if (mysql_stmt_store_result(stmt))
	    mysql_stmt_raise(stmt);
	field = mysql_fetch_fields(s->res);
	for (i = 0; i < s->result.n; i++) {
            switch(s->result.bind[i].buffer_type) {
            case MYSQL_TYPE_NULL:
                break;
            case MYSQL_TYPE_TINY:
            case MYSQL_TYPE_SHORT:
            case MYSQL_TYPE_YEAR:
            case MYSQL_TYPE_INT24:
            case MYSQL_TYPE_LONG:
            case MYSQL_TYPE_LONGLONG:
            case MYSQL_TYPE_FLOAT:
            case MYSQL_TYPE_DOUBLE:
                s->result.bind[i].buffer = xmalloc(8);
                s->result.bind[i].buffer_length = 8;
                memset(s->result.bind[i].buffer, 0, 8);
                break;
            case MYSQL_TYPE_DECIMAL:
            case MYSQL_TYPE_STRING:
            case MYSQL_TYPE_VAR_STRING:
            case MYSQL_TYPE_TINY_BLOB:
            case MYSQL_TYPE_BLOB:
            case MYSQL_TYPE_MEDIUM_BLOB:
            case MYSQL_TYPE_LONG_BLOB:
#if MYSQL_VERSION_ID >= 50003
            case MYSQL_TYPE_NEWDECIMAL:
            case MYSQL_TYPE_BIT:
#endif
                s->result.bind[i].buffer = xmalloc(field[i].max_length);
                memset(s->result.bind[i].buffer, 0, field[i].max_length);
                s->result.bind[i].buffer_length = field[i].max_length;
                break;
            case MYSQL_TYPE_TIME:
            case MYSQL_TYPE_DATE:
            case MYSQL_TYPE_DATETIME:
            case MYSQL_TYPE_TIMESTAMP:
                s->result.bind[i].buffer = xmalloc(sizeof(MYSQL_TIME));
                s->result.bind[i].buffer_length = sizeof(MYSQL_TIME);
                memset(s->result.bind[i].buffer, 0, sizeof(MYSQL_TIME));
                break;
            default:
                rb_raise(rb_eTypeError, "unknown buffer_type: %d", s->result.bind[i].buffer_type);
            }
	}
	if (mysql_stmt_bind_result(s->stmt, s->result.bind))
	    mysql_stmt_raise(s->stmt);
    }
    return obj;
}

#fetchObject

fetch()



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# File 'ext/mysql_api/mysql.c', line 1494

static VALUE stmt_fetch(VALUE obj)
{
    struct mysql_stmt* s = DATA_PTR(obj);
    VALUE ret;
    int i;
    int r;

    check_stmt_closed(obj);
    r = mysql_stmt_fetch(s->stmt);
    if (r == MYSQL_NO_DATA)
	return Qnil;
#ifdef MYSQL_DATA_TRUNCATED
    if (r == MYSQL_DATA_TRUNCATED)
        rb_raise(rb_eRuntimeError, "unexpectedly data truncated");
#endif
    if (r == 1)
	mysql_stmt_raise(s->stmt);

    ret = rb_ary_new2(s->result.n);
    for (i = 0; i < s->result.n; i++) {
	if (s->result.is_null[i])
	    rb_ary_push(ret, Qnil);
	else {
	    VALUE v;
	    MYSQL_TIME *t;
	    switch (s->result.bind[i].buffer_type) {
            case MYSQL_TYPE_TINY:
                if (s->result.bind[i].is_unsigned)
                    v = UINT2NUM(*(unsigned char *)s->result.bind[i].buffer);
                else
                    v = INT2NUM(*(signed char *)s->result.bind[i].buffer);
                break;
            case MYSQL_TYPE_SHORT:
            case MYSQL_TYPE_YEAR:
                if (s->result.bind[i].is_unsigned)
                    v = UINT2NUM(*(unsigned short *)s->result.bind[i].buffer);
                else
                    v = INT2NUM(*(short *)s->result.bind[i].buffer);
                break;
            case MYSQL_TYPE_INT24:
            case MYSQL_TYPE_LONG:
                if (s->result.bind[i].is_unsigned)
                    v = UINT2NUM(*(unsigned int *)s->result.bind[i].buffer);
                else
                    v = INT2NUM(*(int *)s->result.bind[i].buffer);
                break;
            case MYSQL_TYPE_LONGLONG:
                if (s->result.bind[i].is_unsigned)
                    v = ULL2NUM(*(unsigned long long *)s->result.bind[i].buffer);
                else
                    v = LL2NUM(*(long long *)s->result.bind[i].buffer);
                break;
            case MYSQL_TYPE_FLOAT:
                v = rb_float_new((double)(*(float *)s->result.bind[i].buffer));
                break;
            case MYSQL_TYPE_DOUBLE:
                v = rb_float_new(*(double *)s->result.bind[i].buffer);
                break;
            case MYSQL_TYPE_TIME:
            case MYSQL_TYPE_DATE:
            case MYSQL_TYPE_DATETIME:
            case MYSQL_TYPE_TIMESTAMP:
                t = (MYSQL_TIME *)s->result.bind[i].buffer;
                v = rb_obj_alloc(cMysqlTime);
                rb_funcall(v, rb_intern("initialize"), 8,
                           INT2FIX(t->year), INT2FIX(t->month),
                           INT2FIX(t->day), INT2FIX(t->hour),
                           INT2FIX(t->minute), INT2FIX(t->second),
                           (t->neg ? Qtrue : Qfalse),
                           INT2FIX(t->second_part));
                break;
            case MYSQL_TYPE_DECIMAL:
            case MYSQL_TYPE_STRING:
            case MYSQL_TYPE_VAR_STRING:
            case MYSQL_TYPE_TINY_BLOB:
            case MYSQL_TYPE_BLOB:
            case MYSQL_TYPE_MEDIUM_BLOB:
            case MYSQL_TYPE_LONG_BLOB:
#if MYSQL_VERSION_ID >= 50003
            case MYSQL_TYPE_NEWDECIMAL:
            case MYSQL_TYPE_BIT:
#endif
                v = rb_tainted_str_new(s->result.bind[i].buffer, s->result.length[i]);
                break;
            default:
                rb_raise(rb_eTypeError, "unknown buffer_type: %d", s->result.bind[i].buffer_type);
	    }
	    rb_ary_push(ret, v);
	}
    }
    return ret;
}

#field_countObject

field_count()



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# File 'ext/mysql_api/mysql.c', line 1598

static VALUE stmt_field_count(VALUE obj)
{
    struct mysql_stmt* s = DATA_PTR(obj);
    unsigned int n;
    check_stmt_closed(obj);
    n = mysql_stmt_field_count(s->stmt);
    return INT2NUM(n);
}

#free_resultObject

free_result()



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# File 'ext/mysql_api/mysql.c', line 1608

static VALUE stmt_free_result(VALUE obj)
{
    struct mysql_stmt* s = DATA_PTR(obj);
    check_stmt_closed(obj);
    if (mysql_stmt_free_result(s->stmt))
	mysql_stmt_raise(s->stmt);
    return obj;
}

#insert_idObject

insert_id()



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# File 'ext/mysql_api/mysql.c', line 1618

static VALUE stmt_insert_id(VALUE obj)
{
    struct mysql_stmt* s = DATA_PTR(obj);
    my_ulonglong n;
    check_stmt_closed(obj);
    n = mysql_stmt_insert_id(s->stmt);
    return ULL2NUM(n);
}

#num_rowsObject

num_rows()



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# File 'ext/mysql_api/mysql.c', line 1628

static VALUE stmt_num_rows(VALUE obj)
{
    struct mysql_stmt* s = DATA_PTR(obj);
    my_ulonglong n;
    check_stmt_closed(obj);
    n = mysql_stmt_num_rows(s->stmt);
    return INT2NUM(n);
}

#param_countObject

param_count()



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# File 'ext/mysql_api/mysql.c', line 1638

static VALUE stmt_param_count(VALUE obj)
{
    struct mysql_stmt* s = DATA_PTR(obj);
    unsigned long n;
    check_stmt_closed(obj);
    n = mysql_stmt_param_count(s->stmt);
    return INT2NUM(n);
}

#prepare(query) ⇒ Object

prepare(query)



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# File 'ext/mysql_api/mysql.c', line 1648

static VALUE stmt_prepare(VALUE obj, VALUE query)
{
    struct mysql_stmt* s = DATA_PTR(obj);
    int n;
    int i;
    MYSQL_FIELD *field;

    free_mysqlstmt_memory(s);
    check_stmt_closed(obj);
    Check_Type(query, T_STRING);
    if (mysql_stmt_prepare(s->stmt, RSTRING_PTR(query), RSTRING_LEN(query)))
	mysql_stmt_raise(s->stmt);

    n = mysql_stmt_param_count(s->stmt);
    s->param.n = n;
    s->param.bind = xmalloc(sizeof(s->param.bind[0]) * n);
    s->param.length = xmalloc(sizeof(s->param.length[0]) * n);
    s->param.buffer = xmalloc(sizeof(s->param.buffer[0]) * n);

    s->res = mysql_stmt_result_metadata(s->stmt);
    if (s->res) {
	n = s->result.n = mysql_num_fields(s->res);
	s->result.bind = xmalloc(sizeof(s->result.bind[0]) * n);
	s->result.is_null = xmalloc(sizeof(s->result.is_null[0]) * n);
	s->result.length = xmalloc(sizeof(s->result.length[0]) * n);
	field = mysql_fetch_fields(s->res);
	memset(s->result.bind, 0, sizeof(s->result.bind[0]) * n);
	for (i = 0; i < n; i++) {
            s->result.bind[i].buffer_type = field[i].type;
#if MYSQL_VERSION_ID < 50003
            if (field[i].type == MYSQL_TYPE_DECIMAL)
                s->result.bind[i].buffer_type = MYSQL_TYPE_STRING;
#endif
	    s->result.bind[i].is_null = &(s->result.is_null[i]);
	    s->result.bind[i].length = &(s->result.length[i]);
            s->result.bind[i].is_unsigned = ((field[i].flags & UNSIGNED_FLAG) != 0);
	}
    } else {
	if (mysql_stmt_errno(s->stmt))
	    mysql_stmt_raise(s->stmt);
    }

    return obj;
}

#resetObject

reset()



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# File 'ext/mysql_api/mysql.c', line 1695

static VALUE stmt_reset(VALUE obj)
{
    struct mysql_stmt* s = DATA_PTR(obj);
    check_stmt_closed(obj);
    if (mysql_stmt_reset(s->stmt))
	mysql_stmt_raise(s->stmt);
    return obj;
}

#result_metadataObject

result_metadata()



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# File 'ext/mysql_api/mysql.c', line 1706

static VALUE stmt_result_metadata(VALUE obj)
{
    struct mysql_stmt* s = DATA_PTR(obj);
    MYSQL_RES *res;
    check_stmt_closed(obj);
    res = mysql_stmt_result_metadata(s->stmt);
    if (res == NULL) {
      if (mysql_stmt_errno(s->stmt) != 0)
	mysql_stmt_raise(s->stmt);
      return Qnil;
    }
    return mysqlres2obj(res);
}

#row_seek(offset) ⇒ Object

row_seek(offset)



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# File 'ext/mysql_api/mysql.c', line 1721

static VALUE stmt_row_seek(VALUE obj, VALUE offset)
{
    struct mysql_stmt* s = DATA_PTR(obj);
    MYSQL_ROW_OFFSET prev_offset;
    if (CLASS_OF(offset) != cMysqlRowOffset)
	rb_raise(rb_eTypeError, "wrong argument type %s (expected Mysql::RowOffset)", rb_obj_classname(offset));
    check_stmt_closed(obj);
    prev_offset = mysql_stmt_row_seek(s->stmt, DATA_PTR(offset));
    return Data_Wrap_Struct(cMysqlRowOffset, 0, NULL, prev_offset);
}

#row_tellObject

row_tell()



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# File 'ext/mysql_api/mysql.c', line 1733

static VALUE stmt_row_tell(VALUE obj)
{
    struct mysql_stmt* s = DATA_PTR(obj);
    MYSQL_ROW_OFFSET offset;
    check_stmt_closed(obj);
    offset = mysql_stmt_row_tell(s->stmt);
    return Data_Wrap_Struct(cMysqlRowOffset, 0, NULL, offset);
}

#send_long_data(col, data) ⇒ Object

send_long_data(col, data)



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# File 'ext/mysql_api/mysql.c', line 1744

static VALUE stmt_send_long_data(VALUE obj, VALUE col, VALUE data)
{
    struct mysql_stmt* s = DATA_PTR(obj);
    int c;
    check_stmt_closed(obj);
    c = NUM2INT(col);
    if (0 <= c && c < s->param.n) {
	s->param.bind[c].buffer_type = MYSQL_TYPE_STRING;
	if (mysql_stmt_bind_param(s->stmt, s->param.bind))
	    mysql_stmt_raise(s->stmt);
    }
    if (mysql_stmt_send_long_data(s->stmt, c, RSTRING_PTR(data), RSTRING_LEN(data)))
	mysql_stmt_raise(s->stmt);
    return obj;
}

#sqlstateObject

sqlstate()



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# File 'ext/mysql_api/mysql.c', line 1762

static VALUE stmt_sqlstate(VALUE obj)
{
    struct mysql_stmt* s = DATA_PTR(obj);
    return rb_tainted_str_new2(mysql_stmt_sqlstate(s->stmt));
}