/
mysql.go
225 lines (197 loc) · 4.81 KB
/
mysql.go
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
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
package mysql
import (
"fmt"
"strings"
"os"
_ "github.com/go-sql-driver/mysql"
"database/sql"
"log"
)
/* 起動前に変更 */
const User = "root"
const Pass = ""
const Port = "3306"
type MySQL struct {
db *sql.DB
dbName string
}
type ColumnDefinition struct {
name string
dataType string
primaryKey bool
}
type Column struct {
name string
value string
}
func NewColumnDefinition(n string, dt string, pk bool) *ColumnDefinition {
columnDef := &ColumnDefinition{name: n, dataType: dt, primaryKey: pk}
return columnDef
}
func NewColumn(n string, v string) *Column {
column := &Column{name: n, value: v}
return column
}
func (this *MySQL) ConnectServer() {
var err error
oSql := User + ":" + Pass + "@tcp(" + os.Getenv("TEST_DB_PORT_3306_TCP_ADDR") + ":" + Port + ")/"
fmt.Println("ConnectServer:" + oSql)
this.db, err = sql.Open("mysql", oSql)
if err != nil {
log.Fatal(err)
}
}
func (this *MySQL) UseDB(dbName string) {
uSql := "USE " + dbName
fmt.Println("UseDB:" + uSql)
var err error
_, err = this.db.Exec(uSql)
if err != nil {
fmt.Println(err)
} else {
this.dbName = dbName
}
}
func (this *MySQL) CreateDBSetChar(dbName string, charType string) {
createDBSql := "CREATE DATABASE " + dbName
if len(charType) != 0 {
createDBSql += " CHARACTER SET " + charType
}
fmt.Println("CreateDBSetChar:" + createDBSql)
var err error
_, err = this.db.Exec(createDBSql)
if err != nil {
fmt.Println(err)
}
this.UseDB(dbName)
}
func (this *MySQL) CreateDB(dbName string) {
this.CreateDBSetChar(dbName, "")
}
func (this *MySQL) CreateTable(tableName string, columns []ColumnDefinition) {
cSql := "("
var pkeys []string
for _, column := range columns {
cSql += column.name + " " + column.dataType
if column.primaryKey {
cSql += " NOT NULL"
pkeys = append(pkeys, column.name)
}
cSql += ","
}
cSql = strings.Trim(cSql, ",")
cSql += ")"
cSql = "CREATE TABLE " + tableName + cSql
fmt.Println("CreateTable:" + cSql)
var cterr error
_, cterr = this.db.Exec(cSql)
if cterr != nil {
fmt.Println(cterr)
} else if len(pkeys) != 0 {
pSql := "ALTER TABLE " + tableName + " ADD PRIMARY KEY("
for _, key := range pkeys {
pSql += key + ","
}
pSql = strings.Trim(pSql, ",")
pSql += ")"
fmt.Println("CreateTable: " + pSql)
_, perr := this.db.Exec(pSql)
if perr != nil {
fmt.Println(perr)
}
}
}
func (this *MySQL) Close() {
var err error
err = this.db.Close()
if err != nil {
log.Fatal(err)
}
}
func (this *MySQL) Insert (tableName string, columns []Column) {
iSql := "INSERT INTO " + tableName + " "
names := "("
for _, column := range columns {
names += column.name + ","
}
names = strings.Trim(names, ",")
names += ")"
values := " VALUES ("
for _, column := range columns {
values += column.value + ","
}
values = strings.Trim(values, ",")
values += ")"
iSql += names + values
// fmt.Println("Insert:" + iSql)
var err error
_, err = this.db.Exec(iSql)
if err != nil {
fmt.Print("insert error: ")
fmt.Println(err)
}
}
func (this *MySQL) Update(tableName string, setColumn string, setValue string, whereColumn string, whereValue string) {
uSql := "UPDATE " + tableName + " SET " + setColumn + " = " + setValue + " WHERE " + whereColumn + " = " + whereValue
fmt.Println("Update:" + uSql)
var err error
_, err = this.db.Exec(uSql)
if err != nil {
fmt.Print("update error: ")
fmt.Println(err)
}
}
func (this *MySQL) Delete(tableName string, whereColumn string, whereValue string) {
dSql := "DELETE FROM " + tableName + " WHERE " + whereColumn + " = " + whereValue
fmt.Println("Delete:" + dSql)
var err error
_, err = this.db.Exec(dSql)
if err != nil {
fmt.Print("delete error: ")
fmt.Println(err)
}
}
func (this *MySQL) Query(qSql string) *sql.Rows {
rows, err := this.db.Query(qSql)
if err != nil {
fmt.Print("query error: ")
fmt.Println(err)
}
return rows;
}
func (this *MySQL) QueryRow(qSql string) *sql.Row {
row := this.db.QueryRow(qSql)
return row;
}
func (this *MySQL) FetchAll(qSql string) [][]interface{} {
rows, err := this.db.Query(qSql)
if err != nil {
fmt.Print("fetch all error: ")
fmt.Println(err)
}
defer rows.Close()
columns, _ := rows.Columns()
count := len(columns)
valuePtrs := make([]interface{}, count)
ret := make([][]interface{}, 0)
for rows.Next() {
values := make([]interface{}, count)
for i, _ := range columns {
valuePtrs[i] = &values[i]
}
rows.Scan(valuePtrs...)
for i, _ := range columns {
var v interface{}
val := values[i]
b, ok := val.([]byte)
if (ok) {
v = string(b)
} else {
v = val
}
values[i] = v
}
ret = append(ret, values)
}
return ret;
}