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迁移数据库初始化安装能力 #3

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zhangdeman merged 1 commits from feture/database_install into master 2024-06-17 11:47:44 +08:00
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27
install/define/err.go Normal file
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// Package define ...
//
// Description : define ...
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 2023-09-17 13:29
package define
import "errors"
var (
// FieldNameIsEmpty 字段名为空
FieldNameIsEmpty = errors.New("field name is empty")
// FieldTypeIsEmpty 字段类型为空
FieldTypeIsEmpty = errors.New("field type is empty")
// IndexNameIsEmpty 索引名为空
IndexNameIsEmpty = errors.New("index name is empty")
// IndexTypeIsEmpty 索引类型为空
IndexTypeIsEmpty = errors.New("index type is empty")
// IndexFieldIsEmpty 索引字段为空
IndexFieldIsEmpty = errors.New("index field is empty")
// TableNameIsEmpty 数据表名称为空
TableNameIsEmpty = errors.New("table name is empty")
// TableFieldListIsEmpty 表字段列表为空
TableFieldListIsEmpty = errors.New("table field list is empty")
)

180
install/define/field.go Normal file
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// Package define ...
//
// Description : define ...
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 2023-09-17 18:07
package define
import "strings"
// Field 表字段结构
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 11:19 2023/9/17
type Field struct {
Name string `json:"name"` // 字段名
Type string `json:"type"` // 字段类型
Unsigned bool `json:"unsigned"` // 无符号
NotNull bool `json:"not_null"` // 禁止为空
DefaultValue *string `json:"default_value"` // 默认值
PrimaryKey bool `json:"primary_key"` // 是否主键
IsAutoIncrement bool `json:"is_auto_increment"` // 是否自增
Comment string `json:"comment"` // 字段注释
OnUpdate string `json:"on_update"` // 更新时自动更新数据
isFormat bool `json:"-"` // 是否格式化过
}
// Format 格式化
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 15:08 2023/9/17
func (f *Field) Format() {
if f.isFormat {
return
}
f.isFormat = true
f.Name = strings.TrimSpace(f.Name)
if !strings.HasPrefix(f.Name, "`") {
f.Name = "`" + f.Name
}
if !strings.HasSuffix(f.Name, "`") {
f.Name = f.Name + "`"
}
f.OnUpdate = strings.TrimSpace(f.OnUpdate)
f.Type = strings.ToUpper(strings.TrimSpace(f.Type))
f.Comment = strings.TrimSpace(f.Comment)
}
// IsInt 是否是数字类型, 条件 : 类型关键字包含int
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 15:09 2023/9/17
func (f *Field) IsInt() bool {
f.Format()
return strings.Contains(f.Type, "INT")
}
// UseAutoIncrement 是否自增
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 15:13 2023/9/17
func (f *Field) UseAutoIncrement() bool {
return f.IsAutoIncrement && f.IsInt()
}
// UseDefaultValue 使用默认值, 条件 : 非自增 + 设置了默认值
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 15:15 2023/9/17
func (f *Field) UseDefaultValue() bool {
return !f.UseAutoIncrement() && !strings.Contains(strings.ToUpper(f.Type), "TEXT") && nil != f.DefaultValue
}
// UseUnsigned 无符号
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 16:12 2023/9/17
func (f *Field) UseUnsigned() bool {
return f.Unsigned && f.IsInt()
}
// Validate 验证
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 16:10 2023/9/17
func (f *Field) Validate() error {
if len(f.Name) <= 0 {
return FieldNameIsEmpty
}
if len(f.Type) == 0 {
return FieldTypeIsEmpty
}
return nil
}
// ToString 转字符串
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 16:04 2023/9/17
func (f *Field) ToString() (string, error) {
f.Format()
if err := f.Validate(); nil != err {
return "", err
}
fieldTpl := MysqlFieldTpl
dataReplaceTable := map[string]string{
FieldName: f.Name, // 字段名
FieldType: f.Type, // 字段类型
FieldUnsigned: "", // 无符号
FieldNotNull: "", // 不为空
FieldAutoIncrement: "", // 是否自增
FieldDefaultValue: "", // 默认值
FieldOnUpdate: "", // 自动更新
}
// 是否有符号, 整数且设置有符号
if f.UseUnsigned() {
dataReplaceTable[FieldUnsigned] = "UNSIGNED"
}
// 是否为空
if f.NotNull {
dataReplaceTable[FieldNotNull] = "NOT NULL"
}
// 是否自增
if f.UseAutoIncrement() {
dataReplaceTable[FieldAutoIncrement] = "AUTO_INCREMENT"
}
// 默认值
if f.UseDefaultValue() {
defaultVal := *f.DefaultValue
if strings.Contains(defaultVal, "()") {
// 默认值是Mysql函数
dataReplaceTable[FieldDefaultValue] = "DEFAULT " + defaultVal
} else {
// 默认值是指定的固定值
if f.IsInt() {
dataReplaceTable[FieldDefaultValue] = "DEFAULT " + defaultVal
} else {
dataReplaceTable[FieldDefaultValue] = "DEFAULT '" + defaultVal + "'"
}
}
}
if len(f.OnUpdate) > 0 {
dataReplaceTable[FieldOnUpdate] = " ON UPDATE " + f.OnUpdate
}
// 注释
f.Comment = strings.TrimSpace(f.Comment)
if len(f.Comment) > 0 {
dataReplaceTable[FieldComment] = "COMMENT '" + f.Comment + "'"
}
for source, target := range dataReplaceTable {
fieldTpl = strings.ReplaceAll(fieldTpl, source, target)
}
return fieldTpl, nil
}
// ToStringIgnoreError ...
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 15:59 2023/9/18
func (f *Field) ToStringIgnoreError() string {
sql, _ := f.ToString()
return sql
}

107
install/define/index.go Normal file
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// Package define ...
//
// Description : define ...
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 2023-09-17 18:07
package define
import (
"fmt"
"strings"
)
// Index 索引数据结构
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 11:39 2023/9/17
type Index struct {
Type string `json:"type"` // 索引类型 : unique / index / key / primary 等
Name string `json:"name"` // 索引名称
FieldList []string `json:"field_list"` // 索引字段列表
IsFormat bool `json:"-"` // 是否格式化
}
// Format 格式化
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 15:35 2023/9/17
func (i *Index) Format() {
if i.IsFormat {
return
}
i.IsFormat = true
i.Type = strings.ToUpper(strings.TrimSpace(i.Type))
i.Name = strings.TrimSpace(i.Name)
if !strings.HasPrefix(i.Name, "`") {
i.Name = "`" + i.Name
}
if !strings.HasSuffix(i.Name, "`") {
i.Name = i.Name + "`"
}
for idx := 0; idx < len(i.FieldList); idx++ {
if !strings.HasPrefix(i.FieldList[idx], "`") {
i.FieldList[idx] = "`" + i.FieldList[idx]
}
if !strings.HasSuffix(i.FieldList[idx], "`") {
i.FieldList[idx] = i.FieldList[idx] + "`"
}
}
}
// Validate 验证数据
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 16:17 2023/9/17
func (i *Index) Validate() error {
i.Format()
if len(i.Name) <= 2 {
return IndexNameIsEmpty
}
if len(i.Type) == 0 {
return IndexTypeIsEmpty
}
if len(i.FieldList) == 0 {
return IndexFieldIsEmpty
}
return nil
}
// ToString 生成sql语句
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 17:47 2023/9/17
func (i *Index) ToString() (string, error) {
if err := i.Validate(); nil != err {
return "", err
}
// 拼接sql
switch i.Type {
case TableIndexPrimary:
return fmt.Sprintf("PRIMARY KEY (%v)", i.FieldList[0]), nil
case TableIndexUnique:
return fmt.Sprintf("UNIQUE KEY %v (%v)", i.Name, strings.Join(i.FieldList, ",")), nil
case TableIndexKey:
return fmt.Sprintf("KEY %v (%v)", i.Name, strings.Join(i.FieldList, ",")), nil
case TableIndexIndex:
return fmt.Sprintf("INDEX %v (%v)", i.Name, strings.Join(i.FieldList, ",")), nil
default:
return fmt.Sprintf("%v %v (%v)", i.Type, i.Name, strings.Join(i.FieldList, ",")), nil
}
}
// ToStringIgnoreError ...
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 15:59 2023/9/18
func (i *Index) ToStringIgnoreError() string {
sql, _ := i.ToString()
return sql
}

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// Package define ...
//
// Description : define ...
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 2023-09-17 11:19
package define
import (
"fmt"
"strings"
)
// Table 数据表的数据结构
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 11:22 2023/9/17
type Table struct {
Name string `json:"name"` // 表名称
Engine string `json:"engine"` // 存储引擎
DefaultCharset string `json:"default_charset"` // 默认编码
DefaultCollate string `json:"default_collate"` // 默认集合
Comment string `json:"comment"` // 表注释
AutoIncrement int `json:"auto_increment"` // 自增起始值
FieldList []*Field `json:"field_list"` // 表字段列表
IndexList []*Index `json:"index_list"` // 表索引列表
isFormat bool `json:"-"` // 是否格式化过
}
// Format 格式化
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 18:14 2023/9/17
func (t *Table) Format() {
if t.isFormat {
return
}
t.isFormat = true
t.Name = strings.TrimSpace(t.Name)
t.Engine = strings.TrimSpace(t.Engine)
if len(t.Engine) == 0 {
t.Engine = "InnoDB"
}
t.DefaultCharset = strings.TrimSpace(t.DefaultCharset)
if len(t.DefaultCharset) == 0 {
t.DefaultCharset = "utf8mb4"
}
t.DefaultCollate = strings.TrimSpace(t.DefaultCollate)
if len(t.DefaultCollate) == 0 {
t.DefaultCollate = "utf8mb4_general_ci"
}
for _, item := range t.FieldList {
item.Format()
}
for _, item := range t.IndexList {
item.Format()
}
}
// Validate 数据验证
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 18:23 2023/9/17
func (t *Table) Validate() error {
t.Format()
if len(t.Name) <= 2 {
return TableNameIsEmpty
}
if len(t.FieldList) == 0 {
return TableFieldListIsEmpty
}
return nil
}
// ToString 生成sql
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 18:46 2023/9/17
func (t *Table) ToString() (string, error) {
tableTpl := MysqlTableTpl
replaceTable := map[string]string{
TableName: t.Name, // 表名
TableFieldList: "", // 表字段
TableIndexList: "", // 表索引
TableEngine: "", // 表引擎
TableAutoIncrement: "", // 自增起点
TableDefaultCharset: "", // 默认编码
TableDefaultCollate: "", // 默认字符集
TableComment: "", // 表注释
}
fieldList := make([]string, 0)
for _, item := range t.FieldList {
fieldStr, err := item.ToString()
if nil != err {
return "", err
}
fieldList = append(fieldList, fieldStr)
}
indexList := make([]string, 0)
for _, item := range t.IndexList {
indexStr, err := item.ToString()
if nil != err {
return "", err
}
indexList = append(indexList, indexStr)
}
if len(indexList) == 0 {
replaceTable[TableFieldList] = strings.Join(fieldList, ",")
} else {
replaceTable[TableFieldList] = strings.Join(fieldList, ",") + ","
}
replaceTable[TableIndexList] = strings.Join(indexList, ",")
if len(t.Engine) > 0 {
replaceTable[TableEngine] = "ENGINE=" + t.Engine
}
if t.AutoIncrement > 0 {
replaceTable[TableAutoIncrement] = fmt.Sprintf("AUTO_INCREMENT=%v", t.AutoIncrement)
}
if len(t.DefaultCharset) > 0 {
replaceTable[TableDefaultCharset] = "DEFAULT CHARSET=" + t.DefaultCharset
}
if len(t.DefaultCollate) > 0 {
if len(replaceTable[TableDefaultCharset]) == 0 {
replaceTable[TableDefaultCollate] = "DEFAULT COLLATE=" + t.DefaultCollate
} else {
replaceTable[TableDefaultCollate] = "COLLATE=" + t.DefaultCollate
}
}
if len(t.Comment) > 0 {
replaceTable[TableComment] = fmt.Sprintf("COMMENT='%v'", t.Comment)
}
for source, target := range replaceTable {
tableTpl = strings.ReplaceAll(tableTpl, source, target)
}
return tableTpl, nil
}
// ToStringIgnoreError ...
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 15:59 2023/9/18
func (t *Table) ToStringIgnoreError() string {
sql, _ := t.ToString()
return sql
}

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// Package define ...
//
// Description : define ...
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 2023-09-17 11:48
package define
import "fmt"
// 占位符定义
const (
// Symbol 引号占位符
Symbol = "{SYMBOL}"
// FieldName 表字段名称
FieldName = "{FIELD_NAME}"
// FieldType 字段类型
FieldType = "{FIELD_TYPE}"
// FieldUnsigned 字段无符号
FieldUnsigned = "{FIELD_UNSIGNED}"
// FieldNotNull 字段不为空
FieldNotNull = "{FIELD_NOT_NULL}"
// FieldAutoIncrement 表字段自增
FieldAutoIncrement = "{FIELD_AUTO_INCREMENT}"
// FieldDefaultValue 默认值
FieldDefaultValue = "{FIELD_DEFAULT_VALUE}"
// FieldOnUpdate 字段自动更新
FieldOnUpdate = "{FIELD_ON_UPDATE}"
// FieldComment 字段注释
FieldComment = "{FIELD_COMMENT}"
// IndexType 索引类型
IndexType = "{INDEX_TYPE}"
// IndexName 索引名称
IndexName = "{INDEX_NAME}"
// IndexFieldList 索引字段列表
IndexFieldList = "{INDEX_FIELD_LIST}"
// TableName 表名称
TableName = "{TABLE_NAME}"
// TableFieldList 表字段列表
TableFieldList = "{TABLE_FIELD_LIST}"
// TableIndexList 表索引列表
TableIndexList = "{TABLE_INDEX_LIST}"
// TableEngine 数据表存储引擎
TableEngine = "{TABLE_ENGINE}"
// TableAutoIncrement 表自增起始值
TableAutoIncrement = "{TABLE_AUTO_INCREMENT}"
// TableDefaultCharset 表默认编码
TableDefaultCharset = "{TABLE_DEFAULT_CHARSET}"
// TableDefaultCollate 表默认编码集
TableDefaultCollate = "{TABLE_DEFAULT_COLLATE}"
// TableComment 表注释
TableComment = "{TABLE_COMMENT}"
)
// mysql 数据库相关模板
var (
// MysqlFieldTpl mysql 表字段模板
MysqlFieldTpl = fmt.Sprintf("%v %v %v %v %v %v %v %v", FieldName, FieldType, FieldUnsigned, FieldNotNull, FieldAutoIncrement, FieldDefaultValue, FieldOnUpdate, FieldComment)
// MysqlTableTpl 创建表sql语句
MysqlTableTpl = fmt.Sprintf("CREATE TABLE %v (%v %v) %v %v %v %v %v;", TableName, TableFieldList, TableIndexList, TableEngine, TableAutoIncrement, TableDefaultCharset, TableDefaultCollate, TableComment)
)
const (
// TableIndexPrimary 主键索引
TableIndexPrimary = "PRIMARY"
// TableIndexUnique 唯一索引
TableIndexUnique = "UNIQUE"
// TableIndexKey key
TableIndexKey = "KEY"
// TableIndexIndex index
TableIndexIndex = "INDEX"
)
const (
// TableEngineInnoDB InnoDB 存储引擎
TableEngineInnoDB = "InnoDB"
// TableCharsetUtf8mb4 utf8mb4编码
TableCharsetUtf8mb4 = "utf8mb4"
// TableCollateUtf8mb4GeneralCi 字符集编码
TableCollateUtf8mb4GeneralCi = "utf8mb4_general_ci"
)

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// Package install ...
//
// Description : define ...
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 2023-09-17 19:41
package install
import (
"fmt"
"git.zhangdeman.cn/zhangdeman/database/install/define"
"git.zhangdeman.cn/zhangdeman/wrapper"
)
var (
// Helper ...
Helper *helper
)
func init() {
Helper = &helper{}
}
// helper ...
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 19:42 2023/9/17
type helper struct {
}
// NewPrimaryID 主键ID
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 19:52 2023/9/17
func (h *helper) NewPrimaryID(name string, comment string) *define.Field {
return &define.Field{
Name: name,
Type: "BIGINT(20)",
Unsigned: true,
NotNull: true,
DefaultValue: wrapper.String("0").ToStringPtr().Value,
PrimaryKey: true,
IsAutoIncrement: true,
Comment: comment,
}
}
// NewBigintField 生成bigint字段
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 19:43 2023/9/17
func (h *helper) NewBigintField(name string, unsigned bool, defaultVal string, comment string) *define.Field {
return &define.Field{
Name: name,
Type: "BIGINT(20)",
Unsigned: unsigned,
NotNull: true,
DefaultValue: wrapper.String(defaultVal).ToStringPtr().Value,
PrimaryKey: false,
IsAutoIncrement: false,
Comment: comment,
}
}
// NewIntField 生成int类型
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 19:57 2023/9/17
func (h *helper) NewIntField(name string, unsigned bool, defaultVal string, comment string) *define.Field {
return &define.Field{
Name: name,
Type: "INT(11)",
Unsigned: unsigned,
NotNull: true,
DefaultValue: wrapper.String(defaultVal).ToStringPtr().Value,
PrimaryKey: false,
IsAutoIncrement: false,
Comment: comment,
}
}
// NewVarcharField varchar字段
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 19:59 2023/9/17
func (h *helper) NewVarcharField(name string, length int, defaultVal string, comment string) *define.Field {
return &define.Field{
Name: name,
Type: fmt.Sprintf("VARCHAR(%v)", length),
Unsigned: false,
NotNull: true,
DefaultValue: wrapper.String(defaultVal).ToStringPtr().Value,
PrimaryKey: false,
IsAutoIncrement: false,
Comment: comment,
}
}
// NewCharField char字段
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 20:01 2023/9/17
func (h *helper) NewCharField(name string, length int, comment string, defaultVal string) *define.Field {
return &define.Field{
Name: name,
Type: fmt.Sprintf("CHAR(%v)", length),
Unsigned: false,
NotNull: true,
DefaultValue: wrapper.String(defaultVal).ToStringPtr().Value,
PrimaryKey: false,
IsAutoIncrement: false,
Comment: comment,
}
}
// NewTextField text字段
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 14:49 2024/1/11
func (h *helper) NewTextField(name string, comment string) *define.Field {
return &define.Field{
Name: name,
Type: "TEXT",
Unsigned: false,
NotNull: false,
DefaultValue: nil,
PrimaryKey: false,
IsAutoIncrement: false,
Comment: comment,
}
}
// NewTimestampField ...
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 14:02 2023/9/18
func (h *helper) NewTimestampField(name string, comment string, defaultVal string) *define.Field {
return &define.Field{
Name: name,
Type: "TIMESTAMP",
Unsigned: false,
NotNull: true,
DefaultValue: wrapper.String(defaultVal).ToStringPtr().Value,
PrimaryKey: false,
IsAutoIncrement: false,
Comment: comment,
}
}
// NewTimestampFieldWithUpdate 自动更新字段
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 14:03 2023/9/18
func (h *helper) NewTimestampFieldWithUpdate(name string, comment string, defaultVal string) *define.Field {
return &define.Field{
Name: name,
Type: "TIMESTAMP",
Unsigned: false,
NotNull: true,
DefaultValue: wrapper.String(defaultVal).ToStringPtr().Value,
PrimaryKey: false,
IsAutoIncrement: false,
OnUpdate: "current_timestamp()",
Comment: comment,
}
}
// NewDefaultTable 数据表
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 14:11 2023/9/18
func (h *helper) NewDefaultTable(name string, comment string, fieldList []*define.Field, indexList []*define.Index) *define.Table {
return &define.Table{
Name: name,
Engine: define.TableEngineInnoDB,
DefaultCharset: define.TableCharsetUtf8mb4,
DefaultCollate: define.TableCollateUtf8mb4GeneralCi,
Comment: comment,
AutoIncrement: 1,
FieldList: fieldList,
IndexList: indexList,
}
}
// NewPrimaryIndex ...
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 16:11 2023/9/18
func (h *helper) NewPrimaryIndex(fieldName string) *define.Index {
return &define.Index{
Type: define.TableIndexPrimary,
Name: fieldName,
FieldList: []string{fieldName},
IsFormat: false,
}
}
// NewUniqueIndex 生成唯一索引
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 17:05 2023/9/18
func (h *helper) NewUniqueIndex(idxName string, fieldNameList []string) *define.Index {
return &define.Index{
Type: define.TableIndexUnique,
Name: idxName,
FieldList: fieldNameList,
IsFormat: false,
}
}
// NewKeyIndex ...
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 17:05 2023/9/18
func (h *helper) NewKeyIndex(idxName string, fieldNameList []string) *define.Index {
return &define.Index{
Type: define.TableIndexKey,
Name: idxName,
FieldList: fieldNameList,
IsFormat: false,
}
}
// NewIndexIndex ...
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 17:05 2023/9/18
func (h *helper) NewIndexIndex(idxName string, fieldNameList []string) *define.Index {
return &define.Index{
Type: define.TableIndexIndex,
Name: idxName,
FieldList: fieldNameList,
IsFormat: false,
}
}