orm

package
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 Go to latest Published: Jul 26, 2019 License: Apache-2.0 Imports: 14 Imported by: 0

README

beego orm

Build Status

A powerful orm framework for go.

It is heavily influenced by Django ORM, SQLAlchemy.

Support Database:

Passed all test, but need more feedback.

Features:

  • full go type support
  • easy for usage, simple CRUD operation
  • auto join with relation table
  • cross DataBase compatible query
  • Raw SQL query / mapper without orm model
  • full test keep stable and strong

more features please read the docs

Install:

go get github.com/astaxie/beego/orm

Changelog

  • 2013-08-19: support table auto create
  • 2013-08-13: update test for database types
  • 2013-08-13: go type support, such as int8, uint8, byte, rune
  • 2013-08-13: date / datetime timezone support very well

Quick Start

Simple Usage
package main

import (
	"fmt"
	"github.com/astaxie/beego/orm"
	_ "github.com/go-sql-driver/mysql" // import your used driver
)

// Model Struct
type User struct {
	Id   int    `orm:"auto"`
	Name string `orm:"size(100)"`
}

func init() {
	// register model
	orm.RegisterModel(new(User))

	// set default database
	orm.RegisterDataBase("default", "mysql", "root:root@/my_db?charset=utf8", 30)
	
	// create table
	orm.RunSyncdb("default", false, true)	
}

func main() {
	o := orm.NewOrm()

	user := User{Name: "slene"}

	// insert
	id, err := o.Insert(&user)

	// update
	user.Name = "astaxie"
	num, err := o.Update(&user)

	// read one
	u := User{Id: user.Id}
	err = o.Read(&u)

	// delete
	num, err = o.Delete(&u)	
}
Next with relation
type Post struct {
	Id    int    `orm:"auto"`
	Title string `orm:"size(100)"`
	User  *User  `orm:"rel(fk)"`
}

var posts []*Post
qs := o.QueryTable("post")
num, err := qs.Filter("User__Name", "slene").All(&posts)
Use Raw sql

If you don't like ORM，use Raw SQL to query / mapping without ORM setting

var maps []Params
num, err := o.Raw("SELECT id FROM user WHERE name = ?", "slene").Values(&maps)
if num > 0 {
	fmt.Println(maps[0]["id"])
}
Transaction
o.Begin()
...
user := User{Name: "slene"}
id, err := o.Insert(&user)
if err == nil {
	o.Commit()
} else {
	o.Rollback()
}
Debug Log Queries

In development env, you can simple use

func main() {
	orm.Debug = true
...

enable log queries.

output include all queries, such as exec / prepare / transaction.

like this:

[ORM] - 2013-08-09 13:18:16 - [Queries/default] - [    db.Exec /     0.4ms] - [INSERT INTO `user` (`name`) VALUES (?)] - `slene`
...

note: not recommend use this in product env.

Docs

more details and examples in docs and test

documents

Documentation

Overview

Package orm provide ORM for MySQL/PostgreSQL/sqlite Simple Usage 

package main

import (
	"fmt"
	"github.com/astaxie/beego/orm"
	_ "github.com/go-sql-driver/mysql" // import your used driver
)

// Model Struct
type User struct {
	Id   int    `orm:"auto"`
	Name string `orm:"size(100)"`
}

func init() {
	orm.RegisterDataBase("default", "mysql", "root:root@/my_db?charset=utf8", 30)
}

func main() {
	o := orm.NewOrm()
	user := User{Name: "slene"}
	// insert
	id, err := o.Insert(&user)
	// update
	user.Name = "astaxie"
	num, err := o.Update(&user)
	// read one
	u := User{Id: user.Id}
	err = o.Read(&u)
	// delete
	num, err = o.Delete(&u)
}

more docs: http://beego.me/docs/mvc/model/overview.md

Index

Constants

View Source 
const (
	TypeBooleanField = 1 << iota
	TypeVarCharField
	TypeCharField
	TypeTextField
	TypeTimeField
	TypeDateField
	TypeDateTimeField
	TypeBitField
	TypeSmallIntegerField
	TypeIntegerField
	TypeBigIntegerField
	TypePositiveBitField
	TypePositiveSmallIntegerField
	TypePositiveIntegerField
	TypePositiveBigIntegerField
	TypeFloatField
	TypeDecimalField
	TypeJSONField
	TypeJsonbField
	RelForeignKey
	RelOneToOne
	RelManyToMany
	RelReverseOne
	RelReverseMany
)

Define the Type enum

View Source 
const (
	IsIntegerField         = ^-TypePositiveBigIntegerField >> 6 << 7
	IsPositiveIntegerField = ^-TypePositiveBigIntegerField >> 10 << 11
	IsRelField             = ^-RelReverseMany >> 18 << 19
	IsFieldType            = ^-RelReverseMany<<1 + 1
)

Define some logic enum

View Source 
const (
	ColAdd operator = iota
	ColMinus
	ColMultiply
	ColExcept
)

define Col operations

View Source 
const CommaSpace = ", "

CommaSpace is the separation

View Source 
const (
	DebugQueries = iota
)

DebugQueries define the debug

View Source 
const (
	ExprSep = "__"
)

ExprSep define the expression separation

Variables

View Source 
var (
	Debug            = false
	DebugLog         = NewLog(os.Stdout)
	DefaultRowsLimit = 1000
	DefaultRelsDepth = 2
	DefaultTimeLoc   = time.Local
	ErrTxHasBegan    = errors.New("<Ormer.Begin> transaction already begin")
	ErrTxDone        = errors.New("<Ormer.Commit/Rollback> transaction not begin")
	ErrMultiRows     = errors.New("<QuerySeter> return multi rows")
	ErrNoRows        = errors.New("<QuerySeter> no row found")
	ErrStmtClosed    = errors.New("<QuerySeter> stmt already closed")
	ErrArgs          = errors.New("<Ormer> args error may be empty")
	ErrNotImplement  = errors.New("have not implement")
)

Define common vars

View Source 
var (
	// ErrMissPK missing pk error
	ErrMissPK = errors.New("missed pk value")
)

Functions

func AddAliasWthDB 

func AddAliasWthDB(aliasName, driverName string, db *sql.DB) error

AddAliasWthDB add a aliasName for the drivename

func BootStrap 

func BootStrap()

BootStrap bootstrap models. make all model parsed and can not add more models

func ColValue 

func ColValue(opt operator, value interface{}) interface{}

ColValue do the field raw changes. e.g Nums = Nums + 10. usage: 

Params{
	"Nums": ColValue(Col_Add, 10),
}

func GetDB 

func GetDB(aliasNames ...string) (*sql.DB, error)

GetDB Get *sql.DB from registered database by db alias name. Use "default" as alias name if you not set.

func RegisterDataBase 

func RegisterDataBase(aliasName, driverName, dataSource string, params ...int) error

RegisterDataBase Setting the database connect params. Use the database driver self dataSource args.

func RegisterDriver 

func RegisterDriver(driverName string, typ DriverType) error

RegisterDriver Register a database driver use specify driver name, this can be definition the driver is which database type.

func RegisterModel 

func RegisterModel(models ...interface{})

RegisterModel register models

func RegisterModelWithPrefix 

func RegisterModelWithPrefix(prefix string, models ...interface{})

RegisterModelWithPrefix register models with a prefix

func RegisterModelWithSuffix added in v1.7.1 

func RegisterModelWithSuffix(suffix string, models ...interface{})

RegisterModelWithSuffix register models with a suffix

func ResetModelCache 

func ResetModelCache()

ResetModelCache Clean model cache. Then you can re-RegisterModel. Common use this api for test case.

func RunCommand 

func RunCommand()

RunCommand listen for orm command and then run it if command arguments passed.

func RunSyncdb 

func RunSyncdb(name string, force bool, verbose bool) error

RunSyncdb run syncdb command line. name means table's alias name. default is "default". force means run next sql if the current is error. verbose means show all info when running command or not.

func SetDataBaseTZ 

func SetDataBaseTZ(aliasName string, tz *time.Location) error

SetDataBaseTZ Change the database default used timezone

func SetMaxIdleConns 

func SetMaxIdleConns(aliasName string, maxIdleConns int)

SetMaxIdleConns Change the max idle conns for *sql.DB, use specify database alias name

func SetMaxOpenConns 

func SetMaxOpenConns(aliasName string, maxOpenConns int)

SetMaxOpenConns Change the max open conns for *sql.DB, use specify database alias name

func ToInt64 

func ToInt64(value interface{}) (d int64)

ToInt64 interface to int64

func ToStr 

func ToStr(value interface{}, args ...int) (s string)

ToStr interface to string

Types

type BigIntegerField 

type BigIntegerField int64

BigIntegerField -9223372036854775808 to 9223372036854775807.

func (*BigIntegerField) FieldType 

func (e *BigIntegerField) FieldType() int

FieldType return enum type

func (*BigIntegerField) RawValue 

func (e *BigIntegerField) RawValue() interface{}

RawValue return BigIntegerField value

func (*BigIntegerField) Set 

func (e *BigIntegerField) Set(d int64)

Set the BigIntegerField value

func (*BigIntegerField) SetRaw 

func (e *BigIntegerField) SetRaw(value interface{}) error

SetRaw convert interface int64/string to int64

func (*BigIntegerField) String 

func (e *BigIntegerField) String() string

String convert BigIntegerField to string

func (BigIntegerField) Value 

func (e BigIntegerField) Value() int64

Value return int64

type BooleanField 

type BooleanField bool

BooleanField A true/false field.

func (*BooleanField) FieldType 

func (e *BooleanField) FieldType() int

FieldType return BooleanField the type

func (*BooleanField) RawValue 

func (e *BooleanField) RawValue() interface{}

RawValue return the current value

func (*BooleanField) Set 

func (e *BooleanField) Set(d bool)

Set will set the BooleanField

func (*BooleanField) SetRaw 

func (e *BooleanField) SetRaw(value interface{}) error

SetRaw set the interface to bool

func (*BooleanField) String 

func (e *BooleanField) String() string

String format the Bool to string

func (BooleanField) Value 

func (e BooleanField) Value() bool

Value return the BooleanField

type CharField 

type CharField string

CharField A string field required values tag: size The size is enforced at the database level and in models’s validation. eg: `orm:"size(120)"`

func (*CharField) FieldType 

func (e *CharField) FieldType() int

FieldType return the enum type

func (*CharField) RawValue 

func (e *CharField) RawValue() interface{}

RawValue return the CharField value

func (*CharField) Set 

func (e *CharField) Set(d string)

Set CharField value

func (*CharField) SetRaw 

func (e *CharField) SetRaw(value interface{}) error

SetRaw set the interface to string

func (*CharField) String 

func (e *CharField) String() string

String return the CharField

func (CharField) Value 

func (e CharField) Value() string

Value return the CharField's Value

type Condition 

type Condition struct {
	// contains filtered or unexported fields
}

Condition struct. work for WHERE conditions.

func NewCondition 

func NewCondition() *Condition

NewCondition return new condition struct

func (Condition) And 

func (c Condition) And(expr string, args ...interface{}) *Condition

And add expression to condition

func (*Condition) AndCond 

func (c *Condition) AndCond(cond *Condition) *Condition

AndCond combine a condition to current condition

func (Condition) AndNot 

func (c Condition) AndNot(expr string, args ...interface{}) *Condition

AndNot add NOT expression to condition

func (*Condition) AndNotCond added in v1.7.2 

func (c *Condition) AndNotCond(cond *Condition) *Condition

AndNotCond combine a AND NOT condition to current condition

func (*Condition) IsEmpty 

func (c *Condition) IsEmpty() bool

IsEmpty check the condition arguments are empty or not.

func (Condition) Or 

func (c Condition) Or(expr string, args ...interface{}) *Condition

Or add OR expression to condition

func (*Condition) OrCond 

func (c *Condition) OrCond(cond *Condition) *Condition

OrCond combine a OR condition to current condition

func (Condition) OrNot 

func (c Condition) OrNot(expr string, args ...interface{}) *Condition

OrNot add OR NOT expression to condition

func (*Condition) OrNotCond added in v1.7.2 

func (c *Condition) OrNotCond(cond *Condition) *Condition

OrNotCond combine a OR NOT condition to current condition

type DateField 

type DateField time.Time

DateField A date, represented in go by a time.Time instance. only date values like 2006-01-02 Has a few extra, optional attr tag:

auto_now: Automatically set the field to now every time the object is saved. Useful for “last-modified” timestamps. Note that the current date is always used; it’s not just a default value that you can override.

auto_now_add: Automatically set the field to now when the object is first created. Useful for creation of timestamps. Note that the current date is always used; it’s not just a default value that you can override.

eg: `orm:"auto_now"` or `orm:"auto_now_add"`

func (*DateField) FieldType 

func (e *DateField) FieldType() int

FieldType return enum type Date

func (*DateField) RawValue 

func (e *DateField) RawValue() interface{}

RawValue return Date value

func (*DateField) Set 

func (e *DateField) Set(d time.Time)

Set set the DateField's value

func (*DateField) SetRaw 

func (e *DateField) SetRaw(value interface{}) error

SetRaw convert the interface to time.Time. Allow string and time.Time

func (*DateField) String 

func (e *DateField) String() string

String convert datetime to string

func (DateField) Value 

func (e DateField) Value() time.Time

Value return the time.Time

type DateTimeField 

type DateTimeField time.Time

DateTimeField A date, represented in go by a time.Time instance. datetime values like 2006-01-02 15:04:05 Takes the same extra arguments as DateField.

func (*DateTimeField) FieldType 

func (e *DateTimeField) FieldType() int

FieldType return the enum TypeDateTimeField

func (*DateTimeField) RawValue 

func (e *DateTimeField) RawValue() interface{}

RawValue return the datetime value

func (*DateTimeField) Set 

func (e *DateTimeField) Set(d time.Time)

Set set the time.Time to datetime

func (*DateTimeField) SetRaw 

func (e *DateTimeField) SetRaw(value interface{}) error

SetRaw convert the string or time.Time to DateTimeField

func (*DateTimeField) String 

func (e *DateTimeField) String() string

String return the time's String

func (DateTimeField) Value 

func (e DateTimeField) Value() time.Time

Value return the datetime value

type Driver 

type Driver interface {
	Name() string
	Type() DriverType
}

Driver define database driver

type DriverType 

type DriverType int

DriverType database driver constant int. 

const (
	DRMySQL    DriverType // mysql
	DRSqlite              // sqlite
	DROracle              // oracle
	DRPostgres            // pgsql
	DRTiDB                // TiDB
)

Enum the Database driver

type Fielder 

type Fielder interface {
	String() string
	FieldType() int
	SetRaw(interface{}) error
	RawValue() interface{}
}

Fielder define field info

type FloatField 

type FloatField float64

FloatField A floating-point number represented in go by a float32 value.

func (*FloatField) FieldType 

func (e *FloatField) FieldType() int

FieldType return the enum type

func (*FloatField) RawValue 

func (e *FloatField) RawValue() interface{}

RawValue return the FloatField value

func (*FloatField) Set 

func (e *FloatField) Set(d float64)

Set the Float64

func (*FloatField) SetRaw 

func (e *FloatField) SetRaw(value interface{}) error

SetRaw converter interface Float64 float32 or string to FloatField

func (*FloatField) String 

func (e *FloatField) String() string

String return the string

func (FloatField) Value 

func (e FloatField) Value() float64

Value return the FloatField value

type Inserter 

type Inserter interface {
	Insert(interface{}) (int64, error)
	Close() error
}

Inserter insert prepared statement

type IntegerField 

type IntegerField int32

IntegerField -2147483648 to 2147483647

func (*IntegerField) FieldType 

func (e *IntegerField) FieldType() int

FieldType return the enum type

func (*IntegerField) RawValue 

func (e *IntegerField) RawValue() interface{}

RawValue return IntegerField value

func (*IntegerField) Set 

func (e *IntegerField) Set(d int32)

Set IntegerField value

func (*IntegerField) SetRaw 

func (e *IntegerField) SetRaw(value interface{}) error

SetRaw convert interface int32/string to int32

func (*IntegerField) String 

func (e *IntegerField) String() string

String convert Int32 to string

func (IntegerField) Value 

func (e IntegerField) Value() int32

Value return the int32

type JSONField added in v1.7.0 

type JSONField string

JSONField postgres json field.

func (*JSONField) FieldType added in v1.7.0 

func (j *JSONField) FieldType() int

FieldType return enum type

func (*JSONField) RawValue added in v1.7.0 

func (j *JSONField) RawValue() interface{}

RawValue return JSONField value

func (*JSONField) Set added in v1.7.0 

func (j *JSONField) Set(d string)

Set the JSONField value

func (*JSONField) SetRaw added in v1.7.0 

func (j *JSONField) SetRaw(value interface{}) error

SetRaw convert interface string to string

func (*JSONField) String added in v1.7.0 

func (j *JSONField) String() string

String convert JSONField to string

func (JSONField) Value added in v1.7.0 

func (j JSONField) Value() string

Value return JSONField value

type JsonbField added in v1.7.0 

type JsonbField string

JsonbField postgres json field.

func (*JsonbField) FieldType added in v1.7.0 

func (j *JsonbField) FieldType() int

FieldType return enum type

func (*JsonbField) RawValue added in v1.7.0 

func (j *JsonbField) RawValue() interface{}

RawValue return JsonbField value

func (*JsonbField) Set added in v1.7.0 

func (j *JsonbField) Set(d string)

Set the JsonbField value

func (*JsonbField) SetRaw added in v1.7.0 

func (j *JsonbField) SetRaw(value interface{}) error

SetRaw convert interface string to string

func (*JsonbField) String added in v1.7.0 

func (j *JsonbField) String() string

String convert JsonbField to string

func (JsonbField) Value added in v1.7.0 

func (j JsonbField) Value() string

Value return JsonbField value

type Log 

type Log struct {
	*log.Logger
}

Log implement the log.Logger

func NewLog 

func NewLog(out io.Writer) *Log

NewLog set io.Writer to create a Logger.

type MySQLQueryBuilder added in v1.4.2 

type MySQLQueryBuilder struct {
	Tokens []string
}

MySQLQueryBuilder is the SQL build

func (*MySQLQueryBuilder) And added in v1.4.2 

func (qb *MySQLQueryBuilder) And(cond string) QueryBuilder

And join the and cond

func (*MySQLQueryBuilder) Asc added in v1.4.2 

func (qb *MySQLQueryBuilder) Asc() QueryBuilder

Asc join the asc

func (*MySQLQueryBuilder) Delete added in v1.4.2 

func (qb *MySQLQueryBuilder) Delete(tables ...string) QueryBuilder

Delete join the Delete tables

func (*MySQLQueryBuilder) Desc added in v1.4.2 

func (qb *MySQLQueryBuilder) Desc() QueryBuilder

Desc join the desc

func (*MySQLQueryBuilder) ForUpdate added in v1.7.1 

func (qb *MySQLQueryBuilder) ForUpdate() QueryBuilder

ForUpdate add the FOR UPDATE clause

func (*MySQLQueryBuilder) From added in v1.4.2 

func (qb *MySQLQueryBuilder) From(tables ...string) QueryBuilder

From join the tables

func (*MySQLQueryBuilder) GroupBy added in v1.4.2 

func (qb *MySQLQueryBuilder) GroupBy(fields ...string) QueryBuilder

GroupBy join the Group by fields

func (*MySQLQueryBuilder) Having added in v1.4.2 

func (qb *MySQLQueryBuilder) Having(cond string) QueryBuilder

Having join the Having cond

func (*MySQLQueryBuilder) In added in v1.4.2 

func (qb *MySQLQueryBuilder) In(vals ...string) QueryBuilder

In join the IN (vals)

func (*MySQLQueryBuilder) InnerJoin added in v1.4.2 

func (qb *MySQLQueryBuilder) InnerJoin(table string) QueryBuilder

InnerJoin INNER JOIN the table

func (*MySQLQueryBuilder) InsertInto added in v1.4.2 

func (qb *MySQLQueryBuilder) InsertInto(table string, fields ...string) QueryBuilder

InsertInto join the insert SQL

func (*MySQLQueryBuilder) LeftJoin added in v1.4.2 

func (qb *MySQLQueryBuilder) LeftJoin(table string) QueryBuilder

LeftJoin LEFT JOIN the table

func (*MySQLQueryBuilder) Limit added in v1.4.2 

func (qb *MySQLQueryBuilder) Limit(limit int) QueryBuilder

Limit join the limit num

func (*MySQLQueryBuilder) Offset added in v1.4.2 

func (qb *MySQLQueryBuilder) Offset(offset int) QueryBuilder

Offset join the offset num

func (*MySQLQueryBuilder) On added in v1.4.2 

func (qb *MySQLQueryBuilder) On(cond string) QueryBuilder

On join with on cond

func (*MySQLQueryBuilder) Or added in v1.4.2 

func (qb *MySQLQueryBuilder) Or(cond string) QueryBuilder

Or join the or cond

func (*MySQLQueryBuilder) OrderBy added in v1.4.2 

func (qb *MySQLQueryBuilder) OrderBy(fields ...string) QueryBuilder

OrderBy join the Order by fields

func (*MySQLQueryBuilder) RightJoin added in v1.4.2 

func (qb *MySQLQueryBuilder) RightJoin(table string) QueryBuilder

RightJoin RIGHT JOIN the table

func (*MySQLQueryBuilder) Select added in v1.4.2 

func (qb *MySQLQueryBuilder) Select(fields ...string) QueryBuilder

Select will join the fields

func (*MySQLQueryBuilder) Set added in v1.4.2 

func (qb *MySQLQueryBuilder) Set(kv ...string) QueryBuilder

Set join the set kv

func (*MySQLQueryBuilder) String added in v1.4.2 

func (qb *MySQLQueryBuilder) String() string

String join all Tokens

func (*MySQLQueryBuilder) Subquery added in v1.4.2 

func (qb *MySQLQueryBuilder) Subquery(sub string, alias string) string

Subquery join the sub as alias

func (*MySQLQueryBuilder) Update added in v1.4.2 

func (qb *MySQLQueryBuilder) Update(tables ...string) QueryBuilder

Update join the update table

func (*MySQLQueryBuilder) Values added in v1.4.2 

func (qb *MySQLQueryBuilder) Values(vals ...string) QueryBuilder

Values join the Values(vals)

func (*MySQLQueryBuilder) Where added in v1.4.2 

func (qb *MySQLQueryBuilder) Where(cond string) QueryBuilder

Where join the Where cond

type Ormer 

type Ormer interface {
	// read data to model
	// for example:
	//	this will find User by Id field
	// 	u = &User{Id: user.Id}
	// 	err = Ormer.Read(u)
	//	this will find User by UserName field
	// 	u = &User{UserName: "astaxie", Password: "pass"}
	//	err = Ormer.Read(u, "UserName")
	Read(md interface{}, cols ...string) error
	// Like Read(), but with "FOR UPDATE" clause, useful in transaction.
	// Some databases are not support this feature.
	ReadForUpdate(md interface{}, cols ...string) error
	// Try to read a row from the database, or insert one if it doesn't exist
	ReadOrCreate(md interface{}, col1 string, cols ...string) (bool, int64, error)
	// insert model data to database
	// for example:
	//  user := new(User)
	//  id, err = Ormer.Insert(user)
	//  user must a pointer and Insert will set user's pk field
	Insert(interface{}) (int64, error)
	// mysql:InsertOrUpdate(model) or InsertOrUpdate(model,"colu=colu+value")
	// if colu type is integer : can use(+-*/), string : convert(colu,"value")
	// postgres: InsertOrUpdate(model,"conflictColumnName") or InsertOrUpdate(model,"conflictColumnName","colu=colu+value")
	// if colu type is integer : can use(+-*/), string : colu || "value"
	InsertOrUpdate(md interface{}, colConflitAndArgs ...string) (int64, error)
	// insert some models to database
	InsertMulti(bulk int, mds interface{}) (int64, error)
	// update model to database.
	// cols set the columns those want to update.
	// find model by Id(pk) field and update columns specified by fields, if cols is null then update all columns
	// for example:
	// user := User{Id: 2}
	//	user.Langs = append(user.Langs, "zh-CN", "en-US")
	//	user.Extra.Name = "beego"
	//	user.Extra.Data = "orm"
	//	num, err = Ormer.Update(&user, "Langs", "Extra")
	Update(md interface{}, cols ...string) (int64, error)
	// delete model in database
	Delete(md interface{}, cols ...string) (int64, error)
	// load related models to md model.
	// args are limit, offset int and order string.
	//
	// example:
	// 	Ormer.LoadRelated(post,"Tags")
	// 	for _,tag := range post.Tags{...}
	//args[0] bool true useDefaultRelsDepth ; false  depth 0
	//args[0] int  loadRelationDepth
	//args[1] int limit default limit 1000
	//args[2] int offset default offset 0
	//args[3] string order  for example : "-Id"
	// make sure the relation is defined in model struct tags.
	LoadRelated(md interface{}, name string, args ...interface{}) (int64, error)
	// create a models to models queryer
	// for example:
	// 	post := Post{Id: 4}
	// 	m2m := Ormer.QueryM2M(&post, "Tags")
	QueryM2M(md interface{}, name string) QueryM2Mer
	// return a QuerySeter for table operations.
	// table name can be string or struct.
	// e.g. QueryTable("user"), QueryTable(&user{}) or QueryTable((*User)(nil)),
	QueryTable(ptrStructOrTableName interface{}) QuerySeter
	// switch to another registered database driver by given name.
	Using(name string) error
	// begin transaction
	// for example:
	// 	o := NewOrm()
	// 	err := o.Begin()
	// 	...
	// 	err = o.Rollback()
	Begin() error
	// begin transaction with provided context and option
	// the provided context is used until the transaction is committed or rolled back.
	// if the context is canceled, the transaction will be rolled back.
	// the provided TxOptions is optional and may be nil if defaults should be used.
	// if a non-default isolation level is used that the driver doesn't support, an error will be returned.
	// for example:
	//  o := NewOrm()
	// 	err := o.BeginTx(context.Background(), &sql.TxOptions{Isolation: sql.LevelRepeatableRead})
	//  ...
	//  err = o.Rollback()
	BeginTx(ctx context.Context, opts *sql.TxOptions) error
	// commit transaction
	Commit() error
	// rollback transaction
	Rollback() error
	// return a raw query seter for raw sql string.
	// for example:
	//	 ormer.Raw("UPDATE `user` SET `user_name` = ? WHERE `user_name` = ?", "slene", "testing").Exec()
	//	// update user testing's name to slene
	Raw(query string, args ...interface{}) RawSeter
	Driver() Driver
}

Ormer define the orm interface

func NewOrm 

func NewOrm() Ormer

NewOrm create new orm

func NewOrmWithDB 

func NewOrmWithDB(driverName, aliasName string, db *sql.DB) (Ormer, error)

NewOrmWithDB create a new ormer object with specify *sql.DB for query

type Params 

type Params map[string]interface{}

Params stores the Params

type ParamsList 

type ParamsList []interface{}

ParamsList stores paramslist

type PositiveBigIntegerField 

type PositiveBigIntegerField uint64

PositiveBigIntegerField 0 to 18446744073709551615

func (*PositiveBigIntegerField) FieldType 

func (e *PositiveBigIntegerField) FieldType() int

FieldType return enum type

func (*PositiveBigIntegerField) RawValue 

func (e *PositiveBigIntegerField) RawValue() interface{}

RawValue return PositiveBigIntegerField value

func (*PositiveBigIntegerField) Set 

func (e *PositiveBigIntegerField) Set(d uint64)

Set PositiveBigIntegerField value

func (*PositiveBigIntegerField) SetRaw 

func (e *PositiveBigIntegerField) SetRaw(value interface{}) error

SetRaw convert interface uint64/string to Uint64

func (*PositiveBigIntegerField) String 

func (e *PositiveBigIntegerField) String() string

String convert PositiveBigIntegerField to string

func (PositiveBigIntegerField) Value 

func (e PositiveBigIntegerField) Value() uint64

Value return uint64

type PositiveIntegerField 

type PositiveIntegerField uint32

PositiveIntegerField 0 to 4294967295

func (*PositiveIntegerField) FieldType 

func (e *PositiveIntegerField) FieldType() int

FieldType return enum type

func (*PositiveIntegerField) RawValue 

func (e *PositiveIntegerField) RawValue() interface{}

RawValue return the PositiveIntegerField Value

func (*PositiveIntegerField) Set 

func (e *PositiveIntegerField) Set(d uint32)

Set the PositiveIntegerField value

func (*PositiveIntegerField) SetRaw 

func (e *PositiveIntegerField) SetRaw(value interface{}) error

SetRaw convert interface uint32/string to Uint32

func (*PositiveIntegerField) String 

func (e *PositiveIntegerField) String() string

String convert PositiveIntegerField to string

func (PositiveIntegerField) Value 

func (e PositiveIntegerField) Value() uint32

Value return PositiveIntegerField value. Uint32

type PositiveSmallIntegerField 

type PositiveSmallIntegerField uint16

PositiveSmallIntegerField 0 to 65535

func (*PositiveSmallIntegerField) FieldType 

func (e *PositiveSmallIntegerField) FieldType() int

FieldType return enum type

func (*PositiveSmallIntegerField) RawValue 

func (e *PositiveSmallIntegerField) RawValue() interface{}

RawValue returns PositiveSmallIntegerField value

func (*PositiveSmallIntegerField) Set 

func (e *PositiveSmallIntegerField) Set(d uint16)

Set PositiveSmallIntegerField value

func (*PositiveSmallIntegerField) SetRaw 

func (e *PositiveSmallIntegerField) SetRaw(value interface{}) error

SetRaw convert Interface uint16/string to uint16

func (*PositiveSmallIntegerField) String 

func (e *PositiveSmallIntegerField) String() string

String convert uint16 to string

func (PositiveSmallIntegerField) Value 

func (e PositiveSmallIntegerField) Value() uint16

Value return uint16

type QueryBuilder added in v1.4.2 

type QueryBuilder interface {
	Select(fields ...string) QueryBuilder
	ForUpdate() QueryBuilder
	From(tables ...string) QueryBuilder
	InnerJoin(table string) QueryBuilder
	LeftJoin(table string) QueryBuilder
	RightJoin(table string) QueryBuilder
	On(cond string) QueryBuilder
	Where(cond string) QueryBuilder
	And(cond string) QueryBuilder
	Or(cond string) QueryBuilder
	In(vals ...string) QueryBuilder
	OrderBy(fields ...string) QueryBuilder
	Asc() QueryBuilder
	Desc() QueryBuilder
	Limit(limit int) QueryBuilder
	Offset(offset int) QueryBuilder
	GroupBy(fields ...string) QueryBuilder
	Having(cond string) QueryBuilder
	Update(tables ...string) QueryBuilder
	Set(kv ...string) QueryBuilder
	Delete(tables ...string) QueryBuilder
	InsertInto(table string, fields ...string) QueryBuilder
	Values(vals ...string) QueryBuilder
	Subquery(sub string, alias string) string
	String() string
}

QueryBuilder is the Query builder interface

func NewQueryBuilder added in v1.4.2 

func NewQueryBuilder(driver string) (qb QueryBuilder, err error)

NewQueryBuilder return the QueryBuilder

type QueryM2Mer 

type QueryM2Mer interface {
	// add models to origin models when creating queryM2M.
	// example:
	// 	m2m := orm.QueryM2M(post,"Tag")
	// 	m2m.Add(&Tag1{},&Tag2{})
	//  	for _,tag := range post.Tags{}{ ... }
	// param could also be any of the follow
	// 	[]*Tag{{Id:3,Name: "TestTag1"}, {Id:4,Name: "TestTag2"}}
	//	&Tag{Id:5,Name: "TestTag3"}
	//	[]interface{}{&Tag{Id:6,Name: "TestTag4"}}
	// insert one or more rows to m2m table
	// make sure the relation is defined in post model struct tag.
	Add(...interface{}) (int64, error)
	// remove models following the origin model relationship
	// only delete rows from m2m table
	// for example:
	//tag3 := &Tag{Id:5,Name: "TestTag3"}
	//num, err = m2m.Remove(tag3)
	Remove(...interface{}) (int64, error)
	// check model is existed in relationship of origin model
	Exist(interface{}) bool
	// clean all models in related of origin model
	Clear() (int64, error)
	// count all related models of origin model
	Count() (int64, error)
}

QueryM2Mer model to model query struct all operations are on the m2m table only, will not affect the origin model table

type QuerySeter 

type QuerySeter interface {
	// add condition expression to QuerySeter.
	// for example:
	//	filter by UserName == 'slene'
	//	qs.Filter("UserName", "slene")
	//	sql : left outer join profile on t0.id1==t1.id2 where t1.age == 28
	//	Filter("profile__Age", 28)
	// 	 // time compare
	//	qs.Filter("created", time.Now())
	Filter(string, ...interface{}) QuerySeter
	// add NOT condition to querySeter.
	// have the same usage as Filter
	Exclude(string, ...interface{}) QuerySeter
	// set condition to QuerySeter.
	// sql's where condition
	//	cond := orm.NewCondition()
	//	cond1 := cond.And("profile__isnull", false).AndNot("status__in", 1).Or("profile__age__gt", 2000)
	//	//sql-> WHERE T0.`profile_id` IS NOT NULL AND NOT T0.`Status` IN (?) OR T1.`age` >  2000
	//	num, err := qs.SetCond(cond1).Count()
	SetCond(*Condition) QuerySeter
	// get condition from QuerySeter.
	// sql's where condition
	//  cond := orm.NewCondition()
	//  cond = cond.And("profile__isnull", false).AndNot("status__in", 1)
	//  qs = qs.SetCond(cond)
	//  cond = qs.GetCond()
	//  cond := cond.Or("profile__age__gt", 2000)
	//  //sql-> WHERE T0.`profile_id` IS NOT NULL AND NOT T0.`Status` IN (?) OR T1.`age` >  2000
	//  num, err := qs.SetCond(cond).Count()
	GetCond() *Condition
	// add LIMIT value.
	// args[0] means offset, e.g. LIMIT num,offset.
	// if Limit <= 0 then Limit will be set to default limit ,eg 1000
	// if QuerySeter doesn't call Limit, the sql's Limit will be set to default limit, eg 1000
	//  for example:
	//	qs.Limit(10, 2)
	//	// sql-> limit 10 offset 2
	Limit(limit interface{}, args ...interface{}) QuerySeter
	// add OFFSET value
	// same as Limit function's args[0]
	Offset(offset interface{}) QuerySeter
	// add GROUP BY expression
	// for example:
	//	qs.GroupBy("id")
	GroupBy(exprs ...string) QuerySeter
	// add ORDER expression.
	// "column" means ASC, "-column" means DESC.
	// for example:
	//	qs.OrderBy("-status")
	OrderBy(exprs ...string) QuerySeter
	// set relation model to query together.
	// it will query relation models and assign to parent model.
	// for example:
	//	// will load all related fields use left join .
	// 	qs.RelatedSel().One(&user)
	//	// will  load related field only profile
	//	qs.RelatedSel("profile").One(&user)
	//	user.Profile.Age = 32
	RelatedSel(params ...interface{}) QuerySeter
	// Set Distinct
	// for example:
	//  o.QueryTable("policy").Filter("Groups__Group__Users__User", user).
	//    Distinct().
	//    All(&permissions)
	Distinct() QuerySeter
	// set FOR UPDATE to query.
	// for example:
	//  o.QueryTable("user").Filter("uid", uid).ForUpdate().All(&users)
	ForUpdate() QuerySeter
	// return QuerySeter execution result number
	// for example:
	//	num, err = qs.Filter("profile__age__gt", 28).Count()
	Count() (int64, error)
	// check result empty or not after QuerySeter executed
	// the same as QuerySeter.Count > 0
	Exist() bool
	// execute update with parameters
	// for example:
	//	num, err = qs.Filter("user_name", "slene").Update(Params{
	//		"Nums": ColValue(Col_Minus, 50),
	//	}) // user slene's Nums will minus 50
	//	num, err = qs.Filter("UserName", "slene").Update(Params{
	//		"user_name": "slene2"
	//	}) // user slene's  name will change to slene2
	Update(values Params) (int64, error)
	// delete from table
	//for example:
	//	num ,err = qs.Filter("user_name__in", "testing1", "testing2").Delete()
	// 	//delete two user  who's name is testing1 or testing2
	Delete() (int64, error)
	// return a insert queryer.
	// it can be used in times.
	// example:
	// 	i,err := sq.PrepareInsert()
	// 	num, err = i.Insert(&user1) // user table will add one record user1 at once
	//	num, err = i.Insert(&user2) // user table will add one record user2 at once
	//	err = i.Close() //don't forget call Close
	PrepareInsert() (Inserter, error)
	// query all data and map to containers.
	// cols means the columns when querying.
	// for example:
	//	var users []*User
	//	qs.All(&users) // users[0],users[1],users[2] ...
	All(container interface{}, cols ...string) (int64, error)
	// query one row data and map to containers.
	// cols means the columns when querying.
	// for example:
	//	var user User
	//	qs.One(&user) //user.UserName == "slene"
	One(container interface{}, cols ...string) error
	// query all data and map to []map[string]interface.
	// expres means condition expression.
	// it converts data to []map[column]value.
	// for example:
	//	var maps []Params
	//	qs.Values(&maps) //maps[0]["UserName"]=="slene"
	Values(results *[]Params, exprs ...string) (int64, error)
	// query all data and map to [][]interface
	// it converts data to [][column_index]value
	// for example:
	//	var list []ParamsList
	//	qs.ValuesList(&list) // list[0][1] == "slene"
	ValuesList(results *[]ParamsList, exprs ...string) (int64, error)
	// query all data and map to []interface.
	// it's designed for one column record set, auto change to []value, not [][column]value.
	// for example:
	//	var list ParamsList
	//	qs.ValuesFlat(&list, "UserName") // list[0] == "slene"
	ValuesFlat(result *ParamsList, expr string) (int64, error)
	// query all rows into map[string]interface with specify key and value column name.
	// keyCol = "name", valueCol = "value"
	// table data
	// name  | value
	// total | 100
	// found | 200
	// to map[string]interface{}{
	// 	"total": 100,
	// 	"found": 200,
	// }
	RowsToMap(result *Params, keyCol, valueCol string) (int64, error)
	// query all rows into struct with specify key and value column name.
	// keyCol = "name", valueCol = "value"
	// table data
	// name  | value
	// total | 100
	// found | 200
	// to struct {
	// 	Total int
	// 	Found int
	// }
	RowsToStruct(ptrStruct interface{}, keyCol, valueCol string) (int64, error)
}

QuerySeter query seter

type RawPreparer 

type RawPreparer interface {
	Exec(...interface{}) (sql.Result, error)
	Close() error
}

RawPreparer raw query statement

type RawSeter 

type RawSeter interface {
	//execute sql and get result
	Exec() (sql.Result, error)
	//query data and map to container
	//for example:
	//	var name string
	//	var id int
	//	rs.QueryRow(&id,&name) // id==2 name=="slene"
	QueryRow(containers ...interface{}) error

	// query data rows and map to container
	//	var ids []int
	//	var names []int
	//	query = fmt.Sprintf("SELECT 'id','name' FROM %suser%s", Q, Q)
	//	num, err = dORM.Raw(query).QueryRows(&ids,&names) // ids=>{1,2},names=>{"nobody","slene"}
	QueryRows(containers ...interface{}) (int64, error)
	SetArgs(...interface{}) RawSeter
	// query data to []map[string]interface
	// see QuerySeter's Values
	Values(container *[]Params, cols ...string) (int64, error)
	// query data to [][]interface
	// see QuerySeter's ValuesList
	ValuesList(container *[]ParamsList, cols ...string) (int64, error)
	// query data to []interface
	// see QuerySeter's ValuesFlat
	ValuesFlat(container *ParamsList, cols ...string) (int64, error)
	// query all rows into map[string]interface with specify key and value column name.
	// keyCol = "name", valueCol = "value"
	// table data
	// name  | value
	// total | 100
	// found | 200
	// to map[string]interface{}{
	// 	"total": 100,
	// 	"found": 200,
	// }
	RowsToMap(result *Params, keyCol, valueCol string) (int64, error)
	// query all rows into struct with specify key and value column name.
	// keyCol = "name", valueCol = "value"
	// table data
	// name  | value
	// total | 100
	// found | 200
	// to struct {
	// 	Total int
	// 	Found int
	// }
	RowsToStruct(ptrStruct interface{}, keyCol, valueCol string) (int64, error)

	// return prepared raw statement for used in times.
	// for example:
	// 	pre, err := dORM.Raw("INSERT INTO tag (name) VALUES (?)").Prepare()
	// 	r, err := pre.Exec("name1") // INSERT INTO tag (name) VALUES (`name1`)
	Prepare() (RawPreparer, error)
}

RawSeter raw query seter create From Ormer.Raw for example: 

sql := fmt.Sprintf("SELECT %sid%s,%sname%s FROM %suser%s WHERE id = ?",Q,Q,Q,Q,Q,Q)
rs := Ormer.Raw(sql, 1)

type SmallIntegerField 

type SmallIntegerField int16

SmallIntegerField -32768 to 32767

func (*SmallIntegerField) FieldType 

func (e *SmallIntegerField) FieldType() int

FieldType return enum type SmallIntegerField

func (*SmallIntegerField) RawValue 

func (e *SmallIntegerField) RawValue() interface{}

RawValue return smallint value

func (*SmallIntegerField) Set 

func (e *SmallIntegerField) Set(d int16)

Set the SmallIntegerField value

func (*SmallIntegerField) SetRaw 

func (e *SmallIntegerField) SetRaw(value interface{}) error

SetRaw convert interface int16/string to int16

func (*SmallIntegerField) String 

func (e *SmallIntegerField) String() string

String convert smallint to string

func (SmallIntegerField) Value 

func (e SmallIntegerField) Value() int16

Value return int16 value

type StrTo 

type StrTo string

StrTo is the target string

func (StrTo) Bool 

func (f StrTo) Bool() (bool, error)

Bool string to bool

func (*StrTo) Clear 

func (f *StrTo) Clear()

Clear string

func (StrTo) Exist 

func (f StrTo) Exist() bool

Exist check string exist

func (StrTo) Float32 

func (f StrTo) Float32() (float32, error)

Float32 string to float32

func (StrTo) Float64 

func (f StrTo) Float64() (float64, error)

Float64 string to float64

func (StrTo) Int 

func (f StrTo) Int() (int, error)

Int string to int

func (StrTo) Int16 

func (f StrTo) Int16() (int16, error)

Int16 string to int16

func (StrTo) Int32 

func (f StrTo) Int32() (int32, error)

Int32 string to int32

func (StrTo) Int64 

func (f StrTo) Int64() (int64, error)

Int64 string to int64

func (StrTo) Int8 

func (f StrTo) Int8() (int8, error)

Int8 string to int8

func (*StrTo) Set 

func (f *StrTo) Set(v string)

Set string

func (StrTo) String 

func (f StrTo) String() string

String string to string

func (StrTo) Uint 

func (f StrTo) Uint() (uint, error)

Uint string to uint

func (StrTo) Uint16 

func (f StrTo) Uint16() (uint16, error)

Uint16 string to uint16

func (StrTo) Uint32 

func (f StrTo) Uint32() (uint32, error)

Uint32 string to uint31

func (StrTo) Uint64 

func (f StrTo) Uint64() (uint64, error)

Uint64 string to uint64

func (StrTo) Uint8 

func (f StrTo) Uint8() (uint8, error)

Uint8 string to uint8

type TextField 

type TextField string

TextField A large text field.

func (*TextField) FieldType 

func (e *TextField) FieldType() int

FieldType return enum type

func (*TextField) RawValue 

func (e *TextField) RawValue() interface{}

RawValue return TextField value

func (*TextField) Set 

func (e *TextField) Set(d string)

Set the TextField value

func (*TextField) SetRaw 

func (e *TextField) SetRaw(value interface{}) error

SetRaw convert interface string to string

func (*TextField) String 

func (e *TextField) String() string

String convert TextField to string

func (TextField) Value 

func (e TextField) Value() string

Value return TextField value

type TiDBQueryBuilder added in v1.6.0 

type TiDBQueryBuilder struct {
	Tokens []string
}

TiDBQueryBuilder is the SQL build

func (*TiDBQueryBuilder) And added in v1.6.0 

func (qb *TiDBQueryBuilder) And(cond string) QueryBuilder

And join the and cond

func (*TiDBQueryBuilder) Asc added in v1.6.0 

func (qb *TiDBQueryBuilder) Asc() QueryBuilder

Asc join the asc

func (*TiDBQueryBuilder) Delete added in v1.6.0 

func (qb *TiDBQueryBuilder) Delete(tables ...string) QueryBuilder

Delete join the Delete tables

func (*TiDBQueryBuilder) Desc added in v1.6.0 

func (qb *TiDBQueryBuilder) Desc() QueryBuilder

Desc join the desc

func (*TiDBQueryBuilder) ForUpdate added in v1.7.1 

func (qb *TiDBQueryBuilder) ForUpdate() QueryBuilder

ForUpdate add the FOR UPDATE clause

func (*TiDBQueryBuilder) From added in v1.6.0 

func (qb *TiDBQueryBuilder) From(tables ...string) QueryBuilder

From join the tables

func (*TiDBQueryBuilder) GroupBy added in v1.6.0 

func (qb *TiDBQueryBuilder) GroupBy(fields ...string) QueryBuilder

GroupBy join the Group by fields

func (*TiDBQueryBuilder) Having added in v1.6.0 

func (qb *TiDBQueryBuilder) Having(cond string) QueryBuilder

Having join the Having cond

func (*TiDBQueryBuilder) In added in v1.6.0 

func (qb *TiDBQueryBuilder) In(vals ...string) QueryBuilder

In join the IN (vals)

func (*TiDBQueryBuilder) InnerJoin added in v1.6.0 

func (qb *TiDBQueryBuilder) InnerJoin(table string) QueryBuilder

InnerJoin INNER JOIN the table

func (*TiDBQueryBuilder) InsertInto added in v1.6.0 

func (qb *TiDBQueryBuilder) InsertInto(table string, fields ...string) QueryBuilder

InsertInto join the insert SQL

func (*TiDBQueryBuilder) LeftJoin added in v1.6.0 

func (qb *TiDBQueryBuilder) LeftJoin(table string) QueryBuilder

LeftJoin LEFT JOIN the table

func (*TiDBQueryBuilder) Limit added in v1.6.0 

func (qb *TiDBQueryBuilder) Limit(limit int) QueryBuilder

Limit join the limit num

func (*TiDBQueryBuilder) Offset added in v1.6.0 

func (qb *TiDBQueryBuilder) Offset(offset int) QueryBuilder

Offset join the offset num

func (*TiDBQueryBuilder) On added in v1.6.0 

func (qb *TiDBQueryBuilder) On(cond string) QueryBuilder

On join with on cond

func (*TiDBQueryBuilder) Or added in v1.6.0 

func (qb *TiDBQueryBuilder) Or(cond string) QueryBuilder

Or join the or cond

func (*TiDBQueryBuilder) OrderBy added in v1.6.0 

func (qb *TiDBQueryBuilder) OrderBy(fields ...string) QueryBuilder

OrderBy join the Order by fields

func (*TiDBQueryBuilder) RightJoin added in v1.6.0 

func (qb *TiDBQueryBuilder) RightJoin(table string) QueryBuilder

RightJoin RIGHT JOIN the table

func (*TiDBQueryBuilder) Select added in v1.6.0 

func (qb *TiDBQueryBuilder) Select(fields ...string) QueryBuilder

Select will join the fields

func (*TiDBQueryBuilder) Set added in v1.6.0 

func (qb *TiDBQueryBuilder) Set(kv ...string) QueryBuilder

Set join the set kv

func (*TiDBQueryBuilder) String added in v1.6.0 

func (qb *TiDBQueryBuilder) String() string

String join all Tokens

func (*TiDBQueryBuilder) Subquery added in v1.6.0 

func (qb *TiDBQueryBuilder) Subquery(sub string, alias string) string

Subquery join the sub as alias

func (*TiDBQueryBuilder) Update added in v1.6.0 

func (qb *TiDBQueryBuilder) Update(tables ...string) QueryBuilder

Update join the update table

func (*TiDBQueryBuilder) Values added in v1.6.0 

func (qb *TiDBQueryBuilder) Values(vals ...string) QueryBuilder

Values join the Values(vals)

func (*TiDBQueryBuilder) Where added in v1.6.0 

func (qb *TiDBQueryBuilder) Where(cond string) QueryBuilder

Where join the Where cond

type TimeField added in v1.7.0 

type TimeField time.Time

TimeField A time, represented in go by a time.Time instance. only time values like 10:00:00 Has a few extra, optional attr tag:

auto_now: Automatically set the field to now every time the object is saved. Useful for “last-modified” timestamps. Note that the current date is always used; it’s not just a default value that you can override.

auto_now_add: Automatically set the field to now when the object is first created. Useful for creation of timestamps. Note that the current date is always used; it’s not just a default value that you can override.

eg: `orm:"auto_now"` or `orm:"auto_now_add"`

func (*TimeField) FieldType added in v1.7.0 

func (e *TimeField) FieldType() int

FieldType return enum type Date

func (*TimeField) RawValue added in v1.7.0 

func (e *TimeField) RawValue() interface{}

RawValue return time value

func (*TimeField) Set added in v1.7.0 

func (e *TimeField) Set(d time.Time)

Set set the TimeField's value

func (*TimeField) SetRaw added in v1.7.0 

func (e *TimeField) SetRaw(value interface{}) error

SetRaw convert the interface to time.Time. Allow string and time.Time

func (*TimeField) String added in v1.7.0 

func (e *TimeField) String() string

String convert time to string

func (TimeField) Value added in v1.7.0 

func (e TimeField) Value() time.Time

Value return the time.Time

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