mirror of
https://gitee.com/dromara/mayfly-go
synced 2026-01-03 13:16:35 +08:00
refactor: dbm重构等
This commit is contained in:
meilin.huang
@@ -8,9 +8,7 @@ import (
|
||||
"mayfly-go/pkg/utils/anyx"
|
||||
"mayfly-go/pkg/utils/collx"
|
||||
"mayfly-go/pkg/utils/stringx"
|
||||
"regexp"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"github.com/may-fly/cast"
|
||||
)
|
||||
@@ -93,6 +91,7 @@ func (md *MssqlMetaData) GetTables(tableNames ...string) ([]dbi.Table, error) {
|
||||
// 获取列元信息, 如列名等
|
||||
func (md *MssqlMetaData) GetColumns(tableNames ...string) ([]dbi.Column, error) {
|
||||
meta := md.dc.GetMetaData()
|
||||
columnHelper := meta.GetColumnHelper()
|
||||
tableName := strings.Join(collx.ArrayMap[string, string](tableNames, func(val string) string {
|
||||
return fmt.Sprintf("'%s'", meta.RemoveQuote(val))
|
||||
}), ",")
|
||||
@@ -119,32 +118,13 @@ func (md *MssqlMetaData) GetColumns(tableNames ...string) ([]dbi.Column, error)
|
||||
NumScale: cast.ToInt(re["NUM_SCALE"]),
|
||||
}
|
||||
|
||||
md.FixColumn(&column)
|
||||
columnHelper.FixColumn(&column)
|
||||
|
||||
columns = append(columns, column)
|
||||
}
|
||||
return columns, nil
|
||||
}
|
||||
|
||||
func (md *MssqlMetaData) FixColumn(column *dbi.Column) {
|
||||
dataType := strings.ToLower(string(column.DataType))
|
||||
|
||||
if collx.ArrayAnyMatches([]string{"date", "time"}, dataType) {
|
||||
// 如果是datetime，精度取NumScale字段
|
||||
column.CharMaxLength = column.NumScale
|
||||
} else if collx.ArrayAnyMatches([]string{"int", "bit", "real", "text", "xml"}, dataType) {
|
||||
// 不显示长度的类型
|
||||
column.NumPrecision = 0
|
||||
column.CharMaxLength = 0
|
||||
} else if collx.ArrayAnyMatches([]string{"numeric", "decimal", "float"}, dataType) {
|
||||
// 如果是num，长度取精度和小数位数
|
||||
column.CharMaxLength = 0
|
||||
} else if collx.ArrayAnyMatches([]string{"nvarchar", "nchar"}, dataType) {
|
||||
// 如果是nvarchar，可视长度减半
|
||||
column.CharMaxLength = column.CharMaxLength / 2
|
||||
}
|
||||
}
|
||||
|
||||
// 获取表主键字段名，不存在主键标识则默认第一个字段
|
||||
func (md *MssqlMetaData) GetPrimaryKey(tablename string) (string, error) {
|
||||
columns, err := md.GetColumns(tablename)
|
||||
@@ -427,172 +407,14 @@ func (md *MssqlMetaData) GetIdentifierQuoteString() string {
|
||||
return "["
|
||||
}
|
||||
|
||||
func (md *MssqlMetaData) BeforeDumpInsertSql(quoteSchema string, tableName string) string {
|
||||
return fmt.Sprintf("set identity_insert %s.%s on ", quoteSchema, tableName)
|
||||
func (md *MssqlMetaData) GetDataHelper() dbi.DataHelper {
|
||||
return new(DataHelper)
|
||||
}
|
||||
|
||||
func (md *MssqlMetaData) GetDataConverter() dbi.DataConverter {
|
||||
return converter
|
||||
func (md *MssqlMetaData) GetColumnHelper() dbi.ColumnHelper {
|
||||
return new(ColumnHelper)
|
||||
}
|
||||
|
||||
var (
|
||||
// 数字类型
|
||||
numberRegexp = regexp.MustCompile(`(?i)int|double|float|number|decimal|byte|bit`)
|
||||
// 日期时间类型
|
||||
datetimeRegexp = regexp.MustCompile(`(?i)datetime|timestamp`)
|
||||
// 日期类型
|
||||
dateRegexp = regexp.MustCompile(`(?i)date`)
|
||||
// 时间类型
|
||||
timeRegexp = regexp.MustCompile(`(?i)time`)
|
||||
|
||||
converter = new(DataConverter)
|
||||
|
||||
// mssql数据类型 对应 公共数据类型
|
||||
commonColumnTypeMap = map[string]dbi.ColumnDataType{
|
||||
"bigint": dbi.CommonTypeBigint,
|
||||
"numeric": dbi.CommonTypeNumber,
|
||||
"bit": dbi.CommonTypeInt,
|
||||
"smallint": dbi.CommonTypeSmallint,
|
||||
"decimal": dbi.CommonTypeNumber,
|
||||
"smallmoney": dbi.CommonTypeNumber,
|
||||
"int": dbi.CommonTypeInt,
|
||||
"tinyint": dbi.CommonTypeSmallint, // mssql tinyint不支持负数
|
||||
"money": dbi.CommonTypeNumber,
|
||||
"float": dbi.CommonTypeNumber, // 近似数字
|
||||
"real": dbi.CommonTypeVarchar,
|
||||
"date": dbi.CommonTypeDate, // 日期和时间
|
||||
"datetimeoffset": dbi.CommonTypeDatetime,
|
||||
"datetime2": dbi.CommonTypeDatetime,
|
||||
"smalldatetime": dbi.CommonTypeDatetime,
|
||||
"datetime": dbi.CommonTypeDatetime,
|
||||
"time": dbi.CommonTypeTime,
|
||||
"char": dbi.CommonTypeChar, // 字符串
|
||||
"varchar": dbi.CommonTypeVarchar,
|
||||
"text": dbi.CommonTypeText,
|
||||
"nchar": dbi.CommonTypeChar,
|
||||
"nvarchar": dbi.CommonTypeVarchar,
|
||||
"ntext": dbi.CommonTypeText,
|
||||
"binary": dbi.CommonTypeBinary,
|
||||
"varbinary": dbi.CommonTypeBinary,
|
||||
"cursor": dbi.CommonTypeVarchar, // 其他
|
||||
"rowversion": dbi.CommonTypeVarchar,
|
||||
"hierarchyid": dbi.CommonTypeVarchar,
|
||||
"uniqueidentifier": dbi.CommonTypeVarchar,
|
||||
"sql_variant": dbi.CommonTypeVarchar,
|
||||
"xml": dbi.CommonTypeText,
|
||||
"table": dbi.CommonTypeText,
|
||||
"geometry": dbi.CommonTypeText, // 空间几何类型
|
||||
"geography": dbi.CommonTypeText, // 空间地理类型
|
||||
}
|
||||
|
||||
// 公共数据类型 对应 mssql数据类型
|
||||
|
||||
mssqlColumnTypeMap = map[dbi.ColumnDataType]string{
|
||||
dbi.CommonTypeVarchar: "nvarchar",
|
||||
dbi.CommonTypeChar: "nchar",
|
||||
dbi.CommonTypeText: "ntext",
|
||||
dbi.CommonTypeBlob: "ntext",
|
||||
dbi.CommonTypeLongblob: "ntext",
|
||||
dbi.CommonTypeLongtext: "ntext",
|
||||
dbi.CommonTypeBinary: "varbinary",
|
||||
dbi.CommonTypeMediumblob: "ntext",
|
||||
dbi.CommonTypeMediumtext: "ntext",
|
||||
dbi.CommonTypeVarbinary: "varbinary",
|
||||
dbi.CommonTypeInt: "int",
|
||||
dbi.CommonTypeSmallint: "smallint",
|
||||
dbi.CommonTypeTinyint: "smallint",
|
||||
dbi.CommonTypeNumber: "decimal",
|
||||
dbi.CommonTypeBigint: "bigint",
|
||||
dbi.CommonTypeDatetime: "datetime2",
|
||||
dbi.CommonTypeDate: "date",
|
||||
dbi.CommonTypeTime: "time",
|
||||
dbi.CommonTypeTimestamp: "timestamp",
|
||||
dbi.CommonTypeEnum: "nvarchar",
|
||||
dbi.CommonTypeJSON: "nvarchar",
|
||||
}
|
||||
)
|
||||
|
||||
type DataConverter struct {
|
||||
}
|
||||
|
||||
func (dc *DataConverter) GetDataType(dbColumnType string) dbi.DataType {
|
||||
if numberRegexp.MatchString(dbColumnType) {
|
||||
return dbi.DataTypeNumber
|
||||
}
|
||||
// 日期时间类型
|
||||
if datetimeRegexp.MatchString(dbColumnType) {
|
||||
return dbi.DataTypeDateTime
|
||||
}
|
||||
// 日期类型
|
||||
if dateRegexp.MatchString(dbColumnType) {
|
||||
return dbi.DataTypeDate
|
||||
}
|
||||
// 时间类型
|
||||
if timeRegexp.MatchString(dbColumnType) {
|
||||
return dbi.DataTypeTime
|
||||
}
|
||||
return dbi.DataTypeString
|
||||
}
|
||||
|
||||
func (dc *DataConverter) FormatData(dbColumnValue any, dataType dbi.DataType) string {
|
||||
// 如果dataType是datetime而dbColumnValue是string类型，则需要根据类型格式化
|
||||
str, ok := dbColumnValue.(string)
|
||||
if dataType == dbi.DataTypeDateTime && ok {
|
||||
// 尝试用时间格式解析
|
||||
res, err := time.Parse(time.DateTime, str)
|
||||
if err == nil {
|
||||
return str
|
||||
}
|
||||
res, _ = time.Parse(time.RFC3339, str)
|
||||
return res.Format(time.DateTime)
|
||||
}
|
||||
if dataType == dbi.DataTypeDate && ok {
|
||||
// 尝试用时间格式解析
|
||||
res, _ := time.Parse(time.DateOnly, str)
|
||||
return res.Format(time.DateOnly)
|
||||
}
|
||||
if dataType == dbi.DataTypeTime && ok {
|
||||
res, _ := time.Parse(time.TimeOnly, str)
|
||||
return res.Format(time.TimeOnly)
|
||||
}
|
||||
return anyx.ToString(dbColumnValue)
|
||||
}
|
||||
|
||||
func (dc *DataConverter) ParseData(dbColumnValue any, dataType dbi.DataType) any {
|
||||
// 如果dataType是datetime而dbColumnValue是string类型，则需要转换为time.Time类型
|
||||
_, ok := dbColumnValue.(string)
|
||||
if dataType == dbi.DataTypeDateTime && ok {
|
||||
res, _ := time.Parse(time.RFC3339, anyx.ToString(dbColumnValue))
|
||||
return res
|
||||
}
|
||||
if dataType == dbi.DataTypeDate && ok {
|
||||
res, _ := time.Parse(time.DateOnly, anyx.ToString(dbColumnValue))
|
||||
return res
|
||||
}
|
||||
if dataType == dbi.DataTypeTime && ok {
|
||||
res, _ := time.Parse(time.TimeOnly, anyx.ToString(dbColumnValue))
|
||||
return res
|
||||
}
|
||||
return dbColumnValue
|
||||
}
|
||||
|
||||
func (dc *DataConverter) WrapValue(dbColumnValue any, dataType dbi.DataType) string {
|
||||
if dbColumnValue == nil {
|
||||
return "NULL"
|
||||
}
|
||||
switch dataType {
|
||||
case dbi.DataTypeNumber:
|
||||
return fmt.Sprintf("%v", dbColumnValue)
|
||||
case dbi.DataTypeString:
|
||||
val := fmt.Sprintf("%v", dbColumnValue)
|
||||
// 转义单引号
|
||||
val = strings.Replace(val, `'`, `''`, -1)
|
||||
val = strings.Replace(val, `\''`, `\'`, -1)
|
||||
// 转义换行符
|
||||
val = strings.Replace(val, "\n", "\\n", -1)
|
||||
return fmt.Sprintf("'%s'", val)
|
||||
case dbi.DataTypeDate, dbi.DataTypeDateTime, dbi.DataTypeTime:
|
||||
return fmt.Sprintf("'%s'", dc.FormatData(dbColumnValue, dataType))
|
||||
}
|
||||
return fmt.Sprintf("'%s'", dbColumnValue)
|
||||
func (md *MssqlMetaData) GetDumpHelper() dbi.DumpHelper {
|
||||
return new(DumpHelper)
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user