1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
/*
* This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _PREPAREDSTATEMENT_H
#define _PREPAREDSTATEMENT_H
#include "DatabaseEnvFwd.h"
#include "Define.h"
#include <array>
#include <string>
#include <variant>
#include <vector>
class MySQLConnection;
struct PreparedStatementData
{
std::variant<
bool,
uint8,
uint16,
uint32,
uint64,
int8,
int16,
int32,
int64,
float,
double,
std::string,
std::vector<uint8>,
std::nullptr_t
> data;
template<typename T>
static std::string ToString(T value);
static std::string ToString(bool value);
static std::string ToString(uint8 value);
static std::string ToString(int8 value);
static std::string ToString(std::string const& value);
static std::string ToString(std::vector<uint8> const& value);
static std::string ToString(std::nullptr_t);
};
//- Upper-level class that is used in code
class TC_DATABASE_API PreparedStatementBase
{
friend class PreparedStatementTask;
public:
explicit PreparedStatementBase(uint32 index, uint8 capacity);
virtual ~PreparedStatementBase();
void setNull(const uint8 index);
void setBool(const uint8 index, const bool value);
void setUInt8(const uint8 index, const uint8 value);
void setUInt16(const uint8 index, const uint16 value);
void setUInt32(const uint8 index, const uint32 value);
void setUInt64(const uint8 index, const uint64 value);
void setInt8(const uint8 index, const int8 value);
void setInt16(const uint8 index, const int16 value);
void setInt32(const uint8 index, const int32 value);
void setInt64(const uint8 index, const int64 value);
void setFloat(const uint8 index, const float value);
void setDouble(const uint8 index, const double value);
void setString(const uint8 index, const std::string& value);
void setStringView(const uint8 index, const std::string_view value);
void setBinary(const uint8 index, const std::vector<uint8>& value);
template <size_t Size>
void setBinary(const uint8 index, std::array<uint8, Size> const& value)
{
std::vector<uint8> vec(value.begin(), value.end());
setBinary(index, vec);
}
uint32 GetIndex() const { return m_index; }
std::vector<PreparedStatementData> const& GetParameters() const { return statement_data; }
protected:
uint32 m_index;
//- Buffer of parameters, not tied to MySQL in any way yet
std::vector<PreparedStatementData> statement_data;
PreparedStatementBase(PreparedStatementBase const& right) = delete;
PreparedStatementBase& operator=(PreparedStatementBase const& right) = delete;
};
template<typename T>
class PreparedStatement : public PreparedStatementBase
{
public:
explicit PreparedStatement(uint32 index, uint8 capacity) : PreparedStatementBase(index, capacity)
{
}
private:
PreparedStatement(PreparedStatement const& right) = delete;
PreparedStatement& operator=(PreparedStatement const& right) = delete;
};
//- Lower-level class, enqueuable operation
class TC_DATABASE_API PreparedStatementTask
{
public:
static PreparedQueryResult Query(MySQLConnection* conn, PreparedStatementBase* stmt);
static bool Execute(MySQLConnection* conn, PreparedStatementBase* stmt);
};
#endif
|
