mirror of
https://gitee.com/dromara/mayfly-go
synced 2025-11-04 00:10:25 +08:00
refactor: dbm重构等
This commit is contained in:
meilin.huang
@@ -6,12 +6,9 @@ import (
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"mayfly-go/internal/db/dbm/dbi"
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"mayfly-go/pkg/errorx"
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"mayfly-go/pkg/logx"
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"mayfly-go/pkg/utils/anyx"
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"mayfly-go/pkg/utils/collx"
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"mayfly-go/pkg/utils/stringx"
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"regexp"
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"strings"
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"time"
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"github.com/kanzihuang/vitess/go/vt/sqlparser"
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"github.com/may-fly/cast"
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@@ -91,6 +88,7 @@ func (md *MysqlMetaData) GetTables(tableNames ...string) ([]dbi.Table, error) {
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// 获取列元信息, 如列名等
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func (md *MysqlMetaData) GetColumns(tableNames ...string) ([]dbi.Column, error) {
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meta := md.dc.GetMetaData()
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columnHelper := meta.GetColumnHelper()
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tableName := strings.Join(collx.ArrayMap[string, string](tableNames, func(val string) string {
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return fmt.Sprintf("'%s'", meta.RemoveQuote(val))
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}), ",")
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@@ -117,25 +115,12 @@ func (md *MysqlMetaData) GetColumns(tableNames ...string) ([]dbi.Column, error)
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NumScale: cast.ToInt(re["numScale"]),
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}
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md.FixColumn(&column)
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columnHelper.FixColumn(&column)
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columns = append(columns, column)
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}
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return columns, nil
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}
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func (md *MysqlMetaData) FixColumn(column *dbi.Column) {
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// 如果是int整型，删除精度
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if strings.Contains(strings.ToLower(string(column.DataType)), "int") {
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column.NumScale = 0
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column.CharMaxLength = 0
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} else
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// 如果是text，删除长度
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if strings.Contains(strings.ToLower(string(column.DataType)), "text") {
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column.CharMaxLength = 0
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column.NumPrecision = 0
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}
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}
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// 获取表主键字段名，不存在主键标识则默认第一个字段
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func (md *MysqlMetaData) GetPrimaryKey(tablename string) (string, error) {
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columns, err := md.GetColumns(tablename)
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@@ -345,164 +330,14 @@ func (md *MysqlMetaData) QuoteLiteral(literal string) string {
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return "'" + literal + "'"
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}
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func (md *MysqlMetaData) SqlParserDialect() sqlparser.Dialect {
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func (md *MysqlMetaData) GetSqlParserDialect() sqlparser.Dialect {
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return sqlparser.MysqlDialect{}
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}
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func (md *MysqlMetaData) GetDataConverter() dbi.DataConverter {
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return converter
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func (md *MysqlMetaData) GetDataHelper() dbi.DataHelper {
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return new(DataHelper)
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}
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var (
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// 数字类型
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numberRegexp = regexp.MustCompile(`(?i)int|double|float|number|decimal|byte|bit`)
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// 日期时间类型
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datetimeRegexp = regexp.MustCompile(`(?i)datetime|timestamp`)
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// 日期类型
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dateRegexp = regexp.MustCompile(`(?i)date`)
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// 时间类型
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timeRegexp = regexp.MustCompile(`(?i)time`)
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converter = new(DataConverter)
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// mysql数据类型 映射 公共数据类型
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commonColumnTypeMap = map[string]dbi.ColumnDataType{
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"bigint": dbi.CommonTypeBigint,
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"binary": dbi.CommonTypeBinary,
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"blob": dbi.CommonTypeBlob,
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"char": dbi.CommonTypeChar,
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"datetime": dbi.CommonTypeDatetime,
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"date": dbi.CommonTypeDate,
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"decimal": dbi.CommonTypeNumber,
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"double": dbi.CommonTypeNumber,
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"enum": dbi.CommonTypeEnum,
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"float": dbi.CommonTypeNumber,
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"int": dbi.CommonTypeInt,
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"json": dbi.CommonTypeJSON,
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"longblob": dbi.CommonTypeLongblob,
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"longtext": dbi.CommonTypeLongtext,
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"mediumblob": dbi.CommonTypeBlob,
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"mediumtext": dbi.CommonTypeText,
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"set": dbi.CommonTypeVarchar,
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"smallint": dbi.CommonTypeSmallint,
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"text": dbi.CommonTypeText,
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"time": dbi.CommonTypeTime,
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"timestamp": dbi.CommonTypeTimestamp,
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"tinyint": dbi.CommonTypeTinyint,
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"varbinary": dbi.CommonTypeVarbinary,
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"varchar": dbi.CommonTypeVarchar,
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}
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// 公共数据类型 映射 mysql数据类型
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mysqlColumnTypeMap = map[dbi.ColumnDataType]string{
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dbi.CommonTypeVarchar: "varchar",
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dbi.CommonTypeChar: "char",
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dbi.CommonTypeText: "text",
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dbi.CommonTypeBlob: "blob",
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dbi.CommonTypeLongblob: "longblob",
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dbi.CommonTypeLongtext: "longtext",
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dbi.CommonTypeBinary: "binary",
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dbi.CommonTypeMediumblob: "blob",
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dbi.CommonTypeMediumtext: "text",
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dbi.CommonTypeVarbinary: "varbinary",
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dbi.CommonTypeInt: "int",
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dbi.CommonTypeSmallint: "smallint",
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dbi.CommonTypeTinyint: "tinyint",
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dbi.CommonTypeNumber: "decimal",
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dbi.CommonTypeBigint: "bigint",
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dbi.CommonTypeDatetime: "datetime",
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dbi.CommonTypeDate: "date",
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dbi.CommonTypeTime: "time",
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dbi.CommonTypeTimestamp: "timestamp",
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dbi.CommonTypeEnum: "enum",
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dbi.CommonTypeJSON: "json",
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}
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)
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type DataConverter struct {
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}
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func (dc *DataConverter) GetDataType(dbColumnType string) dbi.DataType {
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if numberRegexp.MatchString(dbColumnType) {
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return dbi.DataTypeNumber
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}
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// 日期时间类型
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if datetimeRegexp.MatchString(dbColumnType) {
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return dbi.DataTypeDateTime
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}
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// 日期类型
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if dateRegexp.MatchString(dbColumnType) {
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return dbi.DataTypeDate
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}
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// 时间类型
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if timeRegexp.MatchString(dbColumnType) {
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return dbi.DataTypeTime
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}
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return dbi.DataTypeString
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}
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func (dc *DataConverter) FormatData(dbColumnValue any, dataType dbi.DataType) string {
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// 如果dataType是datetime而dbColumnValue是string类型，则需要根据类型格式化
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str, ok := dbColumnValue.(string)
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if dataType == dbi.DataTypeDateTime && ok {
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// 尝试用时间格式解析
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res, err := time.Parse(time.DateTime, str)
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if err == nil {
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return str
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}
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res, _ = time.Parse(time.RFC3339, str)
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return res.Format(time.DateTime)
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}
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if dataType == dbi.DataTypeDate && ok {
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res, _ := time.Parse(time.DateOnly, str)
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return res.Format(time.DateOnly)
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}
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if dataType == dbi.DataTypeTime && ok {
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res, _ := time.Parse(time.TimeOnly, str)
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return res.Format(time.TimeOnly)
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}
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return anyx.ToString(dbColumnValue)
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}
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func (dc *DataConverter) ParseData(dbColumnValue any, dataType dbi.DataType) any {
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// 如果dataType是datetime而dbColumnValue是string类型，则需要转换为time.Time类型
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_, ok := dbColumnValue.(string)
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if ok {
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if dataType == dbi.DataTypeDateTime {
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res, _ := time.Parse(time.DateTime, anyx.ToString(dbColumnValue))
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return res
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}
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if dataType == dbi.DataTypeDate {
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res, _ := time.Parse(time.DateOnly, anyx.ToString(dbColumnValue))
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return res
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}
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if dataType == dbi.DataTypeTime {
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res, _ := time.Parse(time.TimeOnly, anyx.ToString(dbColumnValue))
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return res
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}
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}
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return dbColumnValue
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}
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func (dc *DataConverter) WrapValue(dbColumnValue any, dataType dbi.DataType) string {
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if dbColumnValue == nil {
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return "NULL"
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}
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switch dataType {
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case dbi.DataTypeNumber:
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return fmt.Sprintf("%v", dbColumnValue)
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case dbi.DataTypeString:
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val := fmt.Sprintf("%v", dbColumnValue)
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// 转义单引号
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val = strings.Replace(val, `'`, `''`, -1)
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val = strings.Replace(val, `\''`, `\'`, -1)
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// 转义换行符
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val = strings.Replace(val, "\n", "\\n", -1)
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return fmt.Sprintf("'%s'", val)
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case dbi.DataTypeDate, dbi.DataTypeDateTime, dbi.DataTypeTime:
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// mysql时间类型无需格式化
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return fmt.Sprintf("'%s'", dbColumnValue)
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}
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return fmt.Sprintf("'%s'", dbColumnValue)
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func (md *MysqlMetaData) GetColumnHelper() dbi.ColumnHelper {
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return new(ColumnHelper)
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}
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