mirror of
https://gitee.com/dromara/mayfly-go
synced 2025-11-03 16:00:25 +08:00
599 lines
18 KiB
Go
599 lines
18 KiB
Go
package mssql
|
||
|
||
import (
|
||
"fmt"
|
||
"mayfly-go/internal/db/dbm/dbi"
|
||
"mayfly-go/pkg/errorx"
|
||
"mayfly-go/pkg/logx"
|
||
"mayfly-go/pkg/utils/anyx"
|
||
"mayfly-go/pkg/utils/collx"
|
||
"mayfly-go/pkg/utils/stringx"
|
||
"regexp"
|
||
"strings"
|
||
"time"
|
||
|
||
"github.com/may-fly/cast"
|
||
)
|
||
|
||
const (
|
||
MSSQL_META_FILE = "metasql/mssql_meta.sql"
|
||
MSSQL_DBS_KEY = "MSSQL_DBS"
|
||
MSSQL_DB_SCHEMAS_KEY = "MSSQL_DB_SCHEMAS"
|
||
MSSQL_TABLE_INFO_KEY = "MSSQL_TABLE_INFO"
|
||
MSSQL_INDEX_INFO_KEY = "MSSQL_INDEX_INFO"
|
||
MSSQL_COLUMN_MA_KEY = "MSSQL_COLUMN_MA"
|
||
)
|
||
|
||
type MssqlMetaData struct {
|
||
dbi.DefaultMetaData
|
||
|
||
dc *dbi.DbConn
|
||
}
|
||
|
||
func (md *MssqlMetaData) GetDbServer() (*dbi.DbServer, error) {
|
||
_, res, err := md.dc.Query("SELECT @@VERSION as version")
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
ds := &dbi.DbServer{
|
||
Version: cast.ToString(res[0]["version"]),
|
||
}
|
||
return ds, nil
|
||
}
|
||
|
||
func (md *MssqlMetaData) GetDbNames() ([]string, error) {
|
||
_, res, err := md.dc.Query(dbi.GetLocalSql(MSSQL_META_FILE, MSSQL_DBS_KEY))
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
databases := make([]string, 0)
|
||
for _, re := range res {
|
||
databases = append(databases, cast.ToString(re["dbname"]))
|
||
}
|
||
|
||
return databases, nil
|
||
}
|
||
|
||
// 获取表基础元信息, 如表名等
|
||
func (md *MssqlMetaData) GetTables(tableNames ...string) ([]dbi.Table, error) {
|
||
meta := md.dc.GetMetaData()
|
||
schema := md.dc.Info.CurrentSchema()
|
||
names := strings.Join(collx.ArrayMap[string, string](tableNames, func(val string) string {
|
||
return fmt.Sprintf("'%s'", meta.RemoveQuote(val))
|
||
}), ",")
|
||
|
||
var res []map[string]any
|
||
var err error
|
||
|
||
sql, err := stringx.TemplateParse(dbi.GetLocalSql(MSSQL_META_FILE, MSSQL_TABLE_INFO_KEY), collx.M{"tableNames": names})
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
_, res, err = md.dc.Query(sql, schema)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
tables := make([]dbi.Table, 0)
|
||
for _, re := range res {
|
||
tables = append(tables, dbi.Table{
|
||
TableName: cast.ToString(re["tableName"]),
|
||
TableComment: cast.ToString(re["tableComment"]),
|
||
CreateTime: cast.ToString(re["createTime"]),
|
||
TableRows: cast.ToInt(re["tableRows"]),
|
||
DataLength: cast.ToInt64(re["dataLength"]),
|
||
IndexLength: cast.ToInt64(re["indexLength"]),
|
||
})
|
||
}
|
||
return tables, nil
|
||
}
|
||
|
||
// 获取列元信息, 如列名等
|
||
func (md *MssqlMetaData) GetColumns(tableNames ...string) ([]dbi.Column, error) {
|
||
meta := md.dc.GetMetaData()
|
||
tableName := strings.Join(collx.ArrayMap[string, string](tableNames, func(val string) string {
|
||
return fmt.Sprintf("'%s'", meta.RemoveQuote(val))
|
||
}), ",")
|
||
|
||
_, res, err := md.dc.Query(fmt.Sprintf(dbi.GetLocalSql(MSSQL_META_FILE, MSSQL_COLUMN_MA_KEY), tableName), md.dc.Info.CurrentSchema())
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
columns := make([]dbi.Column, 0)
|
||
for _, re := range res {
|
||
|
||
column := dbi.Column{
|
||
TableName: anyx.ToString(re["TABLE_NAME"]),
|
||
ColumnName: anyx.ToString(re["COLUMN_NAME"]),
|
||
DataType: dbi.ColumnDataType(anyx.ToString(re["DATA_TYPE"])),
|
||
CharMaxLength: cast.ToInt(re["CHAR_MAX_LENGTH"]),
|
||
ColumnComment: anyx.ToString(re["COLUMN_COMMENT"]),
|
||
Nullable: anyx.ToString(re["NULLABLE"]) == "YES",
|
||
IsPrimaryKey: cast.ToInt(re["IS_PRIMARY_KEY"]) == 1,
|
||
IsIdentity: cast.ToInt(re["IS_IDENTITY"]) == 1,
|
||
ColumnDefault: cast.ToString(re["COLUMN_DEFAULT"]),
|
||
NumPrecision: cast.ToInt(re["NUM_PRECISION"]),
|
||
NumScale: cast.ToInt(re["NUM_SCALE"]),
|
||
}
|
||
|
||
md.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)
|
||
if err != nil {
|
||
return "", err
|
||
}
|
||
if len(columns) == 0 {
|
||
return "", errorx.NewBiz("[%s] 表不存在", tablename)
|
||
}
|
||
|
||
for _, v := range columns {
|
||
if v.IsPrimaryKey {
|
||
return v.ColumnName, nil
|
||
}
|
||
}
|
||
|
||
return columns[0].ColumnName, nil
|
||
}
|
||
|
||
func (md *MssqlMetaData) getTableIndexWithPK(tableName string) ([]dbi.Index, error) {
|
||
_, res, err := md.dc.Query(dbi.GetLocalSql(MSSQL_META_FILE, MSSQL_INDEX_INFO_KEY), md.dc.Info.CurrentSchema(), tableName)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
indexs := make([]dbi.Index, 0)
|
||
for _, re := range res {
|
||
indexs = append(indexs, dbi.Index{
|
||
IndexName: cast.ToString(re["indexName"]),
|
||
ColumnName: cast.ToString(re["columnName"]),
|
||
IndexType: cast.ToString(re["indexType"]),
|
||
IndexComment: cast.ToString(re["indexComment"]),
|
||
IsUnique: cast.ToInt(re["isUnique"]) == 1,
|
||
SeqInIndex: cast.ToInt(re["seqInIndex"]),
|
||
IsPrimaryKey: cast.ToInt(re["isPrimaryKey"]) == 1,
|
||
})
|
||
}
|
||
// 把查询结果以索引名分组，多个索引字段以逗号连接
|
||
result := make([]dbi.Index, 0)
|
||
key := ""
|
||
for _, v := range indexs {
|
||
// 当前的索引名
|
||
in := v.IndexName
|
||
if key == in {
|
||
// 索引字段已根据名称和字段顺序排序，故取最后一个即可
|
||
i := len(result) - 1
|
||
// 同索引字段以逗号连接
|
||
result[i].ColumnName = result[i].ColumnName + "," + v.ColumnName
|
||
} else {
|
||
key = in
|
||
result = append(result, v)
|
||
}
|
||
}
|
||
return indexs, nil
|
||
}
|
||
|
||
// 获取表索引信息
|
||
func (md *MssqlMetaData) GetTableIndex(tableName string) ([]dbi.Index, error) {
|
||
indexs, _ := md.getTableIndexWithPK(tableName)
|
||
result := make([]dbi.Index, 0)
|
||
// 过滤掉主键索引
|
||
for _, v := range indexs {
|
||
if v.IsPrimaryKey {
|
||
continue
|
||
}
|
||
result = append(result, v)
|
||
}
|
||
return result, nil
|
||
}
|
||
|
||
func (md *MssqlMetaData) CopyTableDDL(tableName string, newTableName string) (string, error) {
|
||
if newTableName == "" {
|
||
newTableName = tableName
|
||
}
|
||
meta := md.dc.GetMetaData()
|
||
// 查询表名和表注释, 设置表注释
|
||
tbs, err := md.GetTables(tableName)
|
||
if err != nil || len(tbs) < 1 {
|
||
logx.Errorf("获取表信息失败, %s", tableName)
|
||
return "", err
|
||
}
|
||
tabInfo := &dbi.Table{
|
||
TableName: newTableName,
|
||
TableComment: tbs[0].TableComment,
|
||
}
|
||
|
||
// 查询列信息
|
||
columns, err := md.GetColumns(tableName)
|
||
if err != nil {
|
||
logx.Errorf("获取列信息失败, %s", tableName)
|
||
return "", err
|
||
}
|
||
sqlArr := meta.GenerateTableDDL(columns, *tabInfo, true)
|
||
|
||
// 设置索引
|
||
indexs, err := md.GetTableIndex(tableName)
|
||
if err != nil {
|
||
logx.Errorf("获取索引信息失败, %s", tableName)
|
||
return strings.Join(sqlArr, ";"), err
|
||
}
|
||
sqlArr = append(sqlArr, meta.GenerateIndexDDL(indexs, *tabInfo)...)
|
||
return strings.Join(sqlArr, ";"), nil
|
||
}
|
||
|
||
// 获取建索引ddl
|
||
|
||
func (md *MssqlMetaData) GenerateIndexDDL(indexs []dbi.Index, tableInfo dbi.Table) []string {
|
||
tbName := tableInfo.TableName
|
||
meta := md.dc.GetMetaData()
|
||
sqls := make([]string, 0)
|
||
comments := make([]string, 0)
|
||
for _, index := range indexs {
|
||
unique := ""
|
||
if index.IsUnique {
|
||
unique = "unique"
|
||
}
|
||
// 取出列名，添加引号
|
||
cols := strings.Split(index.ColumnName, ",")
|
||
colNames := make([]string, len(cols))
|
||
for i, name := range cols {
|
||
colNames[i] = meta.QuoteIdentifier(name)
|
||
}
|
||
|
||
sqls = append(sqls, fmt.Sprintf("create %s NONCLUSTERED index %s on %s.%s(%s)", unique, index.IndexName, md.dc.Info.CurrentSchema(), tbName, strings.Join(colNames, ",")))
|
||
if index.IndexComment != "" {
|
||
comment := meta.QuoteEscape(index.IndexComment)
|
||
comments = append(comments, fmt.Sprintf("EXECUTE sp_addextendedproperty N'MS_Description', N'%s', N'SCHEMA', N'%s', N'TABLE', N'%s', N'INDEX', N'%s'", comment, md.dc.Info.CurrentSchema(), tbName, index.IndexName))
|
||
}
|
||
}
|
||
if len(comments) > 0 {
|
||
sqls = append(sqls, comments...)
|
||
}
|
||
|
||
return sqls
|
||
}
|
||
|
||
func (md *MssqlMetaData) genColumnBasicSql(column dbi.Column) string {
|
||
meta := md.dc.GetMetaData()
|
||
colName := meta.QuoteIdentifier(column.ColumnName)
|
||
dataType := string(column.DataType)
|
||
|
||
incr := ""
|
||
if column.IsIdentity {
|
||
incr = " IDENTITY(1,1)"
|
||
}
|
||
|
||
nullAble := ""
|
||
if !column.Nullable {
|
||
nullAble = " NOT NULL"
|
||
}
|
||
|
||
defVal := "" // 默认值需要判断引号，如函数是不需要引号的 // 为了防止跨源函数不支持 当默认值是函数时，不需要设置默认值
|
||
if column.ColumnDefault != "" && !strings.Contains(column.ColumnDefault, "(") {
|
||
// 哪些字段类型默认值需要加引号
|
||
mark := false
|
||
if collx.ArrayAnyMatches([]string{"char", "text", "date", "time", "lob"}, dataType) {
|
||
// 当数据类型是日期时间，默认值是日期时间函数时，默认值不需要引号
|
||
if collx.ArrayAnyMatches([]string{"date", "time"}, strings.ToLower(dataType)) &&
|
||
collx.ArrayAnyMatches([]string{"DATE", "TIME"}, strings.ToUpper(column.ColumnDefault)) {
|
||
mark = false
|
||
} else {
|
||
mark = true
|
||
}
|
||
}
|
||
|
||
if mark {
|
||
defVal = fmt.Sprintf(" DEFAULT '%s'", column.ColumnDefault)
|
||
} else {
|
||
defVal = fmt.Sprintf(" DEFAULT %s", column.ColumnDefault)
|
||
}
|
||
}
|
||
|
||
columnSql := fmt.Sprintf(" %s %s%s%s%s", colName, column.GetColumnType(), incr, nullAble, defVal)
|
||
return columnSql
|
||
}
|
||
|
||
// 获取建表ddl
|
||
func (md *MssqlMetaData) GenerateTableDDL(columns []dbi.Column, tableInfo dbi.Table, dropBeforeCreate bool) []string {
|
||
tbName := tableInfo.TableName
|
||
meta := md.dc.GetMetaData()
|
||
|
||
sqlArr := make([]string, 0)
|
||
|
||
// 删除表
|
||
if dropBeforeCreate {
|
||
sqlArr = append(sqlArr, fmt.Sprintf("DROP TABLE IF EXISTS %s", meta.QuoteIdentifier(tbName)))
|
||
}
|
||
|
||
// 组装建表语句
|
||
createSql := fmt.Sprintf("CREATE TABLE %s (\n", meta.QuoteIdentifier(tbName))
|
||
fields := make([]string, 0)
|
||
pks := make([]string, 0)
|
||
columnComments := make([]string, 0)
|
||
|
||
for _, column := range columns {
|
||
if column.IsPrimaryKey {
|
||
pks = append(pks, meta.QuoteIdentifier(column.ColumnName))
|
||
}
|
||
fields = append(fields, md.genColumnBasicSql(column))
|
||
commentTmp := "EXECUTE sp_addextendedproperty N'MS_Description', N'%s', N'SCHEMA', N'%s', N'TABLE', N'%s', N'COLUMN', N'%s'"
|
||
|
||
// 防止注释内含有特殊字符串导致sql出错
|
||
if column.ColumnComment != "" {
|
||
comment := meta.QuoteEscape(column.ColumnComment)
|
||
columnComments = append(columnComments, fmt.Sprintf(commentTmp, comment, md.dc.Info.CurrentSchema(), tbName, column.ColumnName))
|
||
}
|
||
}
|
||
|
||
// create
|
||
createSql += strings.Join(fields, ",\n")
|
||
if len(pks) > 0 {
|
||
createSql += fmt.Sprintf(", \n PRIMARY KEY CLUSTERED (%s)", strings.Join(pks, ","))
|
||
}
|
||
createSql += "\n)"
|
||
|
||
// comment
|
||
tableCommentSql := ""
|
||
if tableInfo.TableComment != "" {
|
||
commentTmp := "EXECUTE sp_addextendedproperty N'MS_Description', N'%s', N'SCHEMA', N'%s', N'TABLE', N'%s'"
|
||
|
||
tableCommentSql = fmt.Sprintf(commentTmp, meta.QuoteEscape(tableInfo.TableComment), md.dc.Info.CurrentSchema(), tbName)
|
||
}
|
||
|
||
sqlArr = append(sqlArr, createSql)
|
||
|
||
if tableCommentSql != "" {
|
||
sqlArr = append(sqlArr, tableCommentSql)
|
||
}
|
||
if len(columnComments) > 0 {
|
||
sqlArr = append(sqlArr, columnComments...)
|
||
}
|
||
|
||
return sqlArr
|
||
}
|
||
|
||
// 获取建表ddl
|
||
func (md *MssqlMetaData) GetTableDDL(tableName string, dropBeforeCreate bool) (string, error) {
|
||
|
||
// 1.获取表信息
|
||
tbs, err := md.GetTables(tableName)
|
||
tableInfo := &dbi.Table{}
|
||
if err != nil || tbs == nil || len(tbs) <= 0 {
|
||
logx.Errorf("获取表信息失败, %s", tableName)
|
||
return "", err
|
||
}
|
||
tableInfo.TableName = tbs[0].TableName
|
||
tableInfo.TableComment = tbs[0].TableComment
|
||
|
||
// 2.获取列信息
|
||
columns, err := md.GetColumns(tableName)
|
||
if err != nil {
|
||
logx.Errorf("获取列信息失败, %s", tableName)
|
||
return "", err
|
||
}
|
||
tableDDLArr := md.GenerateTableDDL(columns, *tableInfo, dropBeforeCreate)
|
||
// 3.获取索引信息
|
||
indexs, err := md.GetTableIndex(tableName)
|
||
if err != nil {
|
||
logx.Errorf("获取索引信息失败, %s", tableName)
|
||
return "", err
|
||
}
|
||
// 组装返回
|
||
tableDDLArr = append(tableDDLArr, md.GenerateIndexDDL(indexs, *tableInfo)...)
|
||
return strings.Join(tableDDLArr, ";\n"), nil
|
||
}
|
||
|
||
func (md *MssqlMetaData) GetSchemas() ([]string, error) {
|
||
_, res, err := md.dc.Query(dbi.GetLocalSql(MSSQL_META_FILE, MSSQL_DB_SCHEMAS_KEY))
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
schemas := make([]string, 0)
|
||
for _, re := range res {
|
||
schemas = append(schemas, cast.ToString(re["SCHEMA_NAME"]))
|
||
}
|
||
return schemas, nil
|
||
}
|
||
|
||
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) GetDataConverter() dbi.DataConverter {
|
||
return converter
|
||
}
|
||
|
||
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)
|
||
}
|