xorm

package module
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 Go to latest Published: Oct 21, 2021 License: Apache-2.0 Imports: 27 Imported by: 0

README

go-xorm

Documentation

Overview

LRUCacher implements Cacher according to LRU algorithm

MemoryStore implements CacheStore provide local machine

Index

Constants

View Source 
const (
	DEFAULT_LOG_PREFIX = "[xorm]"
	DEFAULT_LOG_FLAG   = log.Ldate | log.Lmicroseconds
	DEFAULT_LOG_LEVEL  = core.LOG_DEBUG
)
View Source 
const (
	// Version show the xorm's version
	Version string = "0.6.0.0917Beta"
)

Variables

View Source 
var (
	ErrParamsType      error = errors.New("Params type error")
	ErrTableNotFound   error = errors.New("Not found table")
	ErrUnSupportedType error = errors.New("Unsupported type error")
	ErrNotExist        error = errors.New("Not exist error")
	ErrCacheFailed     error = errors.New("Cache failed")
	ErrNeedDeletedCond error = errors.New("Delete need at least one condition")
	ErrNotImplemented  error = errors.New("Not implemented.")
)

Functions

This section is empty.

Types

type AfterDeleteProcessor 

type AfterDeleteProcessor interface {
	AfterDelete()
}

Executed after an object has been deleted

type AfterInsertProcessor 

type AfterInsertProcessor interface {
	AfterInsert()
}

Executed after an object is persisted to the database

type AfterSetProcessor 

type AfterSetProcessor interface {
	AfterSet(string, Cell)
}

type AfterUpdateProcessor 

type AfterUpdateProcessor interface {
	AfterUpdate()
}

Executed after an object has been updated

type BeforeDeleteProcessor 

type BeforeDeleteProcessor interface {
	BeforeDelete()
}

Executed before an object is deleted

type BeforeInsertProcessor 

type BeforeInsertProcessor interface {
	BeforeInsert()
}

Executed before an object is initially persisted to the database

type BeforeSetProcessor 

type BeforeSetProcessor interface {
	BeforeSet(string, Cell)
}

type BeforeUpdateProcessor 

type BeforeUpdateProcessor interface {
	BeforeUpdate()
}

Executed before an object is updated

type Cell 

type Cell *interface{}

Cell cell is a result of one column field

type DiscardLogger 

type DiscardLogger struct{}

func (DiscardLogger) Debug 

func (DiscardLogger) Debug(v ...interface{})

func (DiscardLogger) Debugf 

func (DiscardLogger) Debugf(format string, v ...interface{})

func (DiscardLogger) Error 

func (DiscardLogger) Error(v ...interface{})

func (DiscardLogger) Errorf 

func (DiscardLogger) Errorf(format string, v ...interface{})

func (DiscardLogger) Info 

func (DiscardLogger) Info(v ...interface{})

func (DiscardLogger) Infof 

func (DiscardLogger) Infof(format string, v ...interface{})

func (DiscardLogger) IsShowSQL 

func (DiscardLogger) IsShowSQL() bool

func (DiscardLogger) Level 

func (DiscardLogger) Level() core.LogLevel

func (DiscardLogger) SetLevel 

func (DiscardLogger) SetLevel(l core.LogLevel)

func (DiscardLogger) ShowSQL 

func (DiscardLogger) ShowSQL(show ...bool)

func (DiscardLogger) Warn 

func (DiscardLogger) Warn(v ...interface{})

func (DiscardLogger) Warnf 

func (DiscardLogger) Warnf(format string, v ...interface{})

type Engine 

type Engine struct {
	ColumnMapper  core.IMapper
	TableMapper   core.IMapper
	TagIdentifier string
	Tables        map[reflect.Type]*core.Table

	Cacher core.Cacher

	TZLocation *time.Location
	DatabaseTZ *time.Location // The timezone of the database
	// contains filtered or unexported fields
}

Engine is the major struct of xorm, it means a database manager. Commonly, an application only need one engine

func NewEngine 

func NewEngine(driverName string, dataSourceName string) (*Engine, error)

NewEngine new a db manager according to the parameter. Currently support four drivers

func (*Engine) After 

func (engine *Engine) After(closures func(interface{})) *Session

After apply after insert Processor, affected bean is passed to closure arg

func (*Engine) Alias 

func (engine *Engine) Alias(alias string) *Session

Alias set the table alias

func (*Engine) AllCols 

func (engine *Engine) AllCols() *Session

AllCols indicates that all columns should be use

func (*Engine) Asc 

func (engine *Engine) Asc(colNames ...string) *Session

Asc will generate "ORDER BY column1,column2 Asc" This method can chainable use. 

engine.Desc("name").Asc("age").Find(&users)
// SELECT * FROM user ORDER BY name DESC, age ASC

func (*Engine) AutoIncrStr 

func (engine *Engine) AutoIncrStr() string

AutoIncrStr Database's autoincrement statement

func (*Engine) Before 

func (engine *Engine) Before(closures func(interface{})) *Session

Before apply before Processor, affected bean is passed to closure arg

func (*Engine) Cascade 

func (engine *Engine) Cascade(trueOrFalse ...bool) *Session

Cascade use cascade or not

func (*Engine) Charset 

func (engine *Engine) Charset(charset string) *Session

Charset set charset when create table, only support mysql now

func (*Engine) ClearCache 

func (engine *Engine) ClearCache(beans ...interface{}) error

ClearCache if enabled cache, clear some tables' cache

func (*Engine) ClearCacheBean 

func (engine *Engine) ClearCacheBean(bean interface{}, id string) error

ClearCacheBean if enabled cache, clear the cache bean

func (*Engine) Clone 

func (engine *Engine) Clone() (*Engine, error)

Clone clone an engine

func (*Engine) Close 

func (engine *Engine) Close() error

Close the engine

func (*Engine) Cols 

func (engine *Engine) Cols(columns ...string) *Session

Cols only use the paramters as select or update columns

func (*Engine) Count 

func (engine *Engine) Count(bean interface{}) (int64, error)

Count counts the records. bean's non-empty fields are conditions.

func (*Engine) CreateIndexes 

func (engine *Engine) CreateIndexes(bean interface{}) error

CreateIndexes create indexes

func (*Engine) CreateTables 

func (engine *Engine) CreateTables(beans ...interface{}) error

CreateTables create tabls according bean

func (*Engine) CreateUniques 

func (engine *Engine) CreateUniques(bean interface{}) error

CreateUniques create uniques

func (*Engine) DB 

func (engine *Engine) DB() *core.DB

DB return the wrapper of sql.DB

func (*Engine) DBMetas 

func (engine *Engine) DBMetas() ([]*core.Table, error)

DBMetas Retrieve all tables, columns, indexes' informations from database.

func (*Engine) DataSourceName 

func (engine *Engine) DataSourceName() string

DataSourceName return the current connection string

func (*Engine) Decr 

func (engine *Engine) Decr(column string, arg ...interface{}) *Session

Decr provides a update string like "column = column - ?"

func (*Engine) Delete 

func (engine *Engine) Delete(bean interface{}) (int64, error)

Delete records, bean's non-empty fields are conditions

func (*Engine) Desc 

func (engine *Engine) Desc(colNames ...string) *Session

Desc will generate "ORDER BY column1 DESC, column2 DESC"

func (*Engine) Dialect 

func (engine *Engine) Dialect() core.Dialect

Dialect return database dialect

func (*Engine) Distinct 

func (engine *Engine) Distinct(columns ...string) *Session

Distinct use for distinct columns. Caution: when you are using cache, distinct will not be cached because cache system need id, but distinct will not provide id

func (*Engine) DriverName 

func (engine *Engine) DriverName() string

DriverName return the current sql driver's name

func (*Engine) DropTables 

func (engine *Engine) DropTables(beans ...interface{}) error

DropTables drop specify tables

func (*Engine) DumpAll 

func (engine *Engine) DumpAll(w io.Writer) error

DumpAll dump database all table structs and data to w

func (*Engine) DumpAllToFile 

func (engine *Engine) DumpAllToFile(fp string) error

DumpAllToFile dump database all table structs and data to a file

func (*Engine) DumpTables 

func (engine *Engine) DumpTables(tables []*core.Table, w io.Writer, tp ...core.DbType) error

DumpTables dump specify tables to io.Writer

func (*Engine) DumpTablesToFile 

func (engine *Engine) DumpTablesToFile(tables []*core.Table, fp string, tp ...core.DbType) error

DumpTablesToFile dump specified tables to SQL file.

func (*Engine) Exec 

func (engine *Engine) Exec(sql string, args ...interface{}) (sql.Result, error)

Exec raw sql

func (*Engine) Find 

func (engine *Engine) Find(beans interface{}, condiBeans ...interface{}) error

Find retrieve records from table, condiBeans's non-empty fields are conditions. beans could be []Struct, []*Struct, map[int64]Struct map[int64]*Struct

func (*Engine) FormatTime 

func (engine *Engine) FormatTime(sqlTypeName string, t time.Time) (v interface{})

FormatTime format time

func (*Engine) Get 

func (engine *Engine) Get(bean interface{}) (bool, error)

Get retrieve one record from table, bean's non-empty fields are conditions

func (*Engine) GobRegister 

func (engine *Engine) GobRegister(v interface{}) *Engine

GobRegister register one struct to gob for cache use

func (*Engine) GroupBy 

func (engine *Engine) GroupBy(keys string) *Session

GroupBy generate group by statement

func (*Engine) Having 

func (engine *Engine) Having(conditions string) *Session

Having generate having statement

func (*Engine) ID 

func (engine *Engine) ID(id interface{}) *Session

ID mehtod provoide a condition as (id) = ?

func (*Engine) Id 

func (engine *Engine) Id(id interface{}) *Session

Id will be depracated, please use ID instead

func (*Engine) IdOf 

func (engine *Engine) IdOf(bean interface{}) core.PK

IdOf get id from one struct

func (*Engine) IdOfV 

func (engine *Engine) IdOfV(rv reflect.Value) core.PK

IdOfV get id from one value of struct

func (*Engine) Import 

func (engine *Engine) Import(r io.Reader) ([]sql.Result, error)

Import SQL DDL from io.Reader

func (*Engine) ImportFile 

func (engine *Engine) ImportFile(ddlPath string) ([]sql.Result, error)

ImportFile SQL DDL file

func (*Engine) In 

func (engine *Engine) In(column string, args ...interface{}) *Session

In will generate "column IN (?, ?)"

func (*Engine) Incr 

func (engine *Engine) Incr(column string, arg ...interface{}) *Session

Incr provides a update string like "column = column + ?"

func (*Engine) Insert 

func (engine *Engine) Insert(beans ...interface{}) (int64, error)

Insert one or more records

func (*Engine) InsertOne 

func (engine *Engine) InsertOne(bean interface{}) (int64, error)

InsertOne insert only one record

func (*Engine) IsTableEmpty 

func (engine *Engine) IsTableEmpty(bean interface{}) (bool, error)

IsTableEmpty if a table has any reocrd

func (*Engine) IsTableExist 

func (engine *Engine) IsTableExist(beanOrTableName interface{}) (bool, error)

IsTableExist if a table is exist

func (*Engine) Iterate 

func (engine *Engine) Iterate(bean interface{}, fun IterFunc) error

Iterate record by record handle records from table, bean's non-empty fields are conditions.

func (*Engine) Join 

func (engine *Engine) Join(joinOperator string, tablename interface{}, condition string, args ...interface{}) *Session

Join the join_operator should be one of INNER, LEFT OUTER, CROSS etc - this will be prepended to JOIN

func (*Engine) Limit 

func (engine *Engine) Limit(limit int, start ...int) *Session

Limit will generate "LIMIT start, limit"

func (*Engine) Logger 

func (engine *Engine) Logger() core.ILogger

Logger return the logger interface

func (*Engine) MapCacher 

func (engine *Engine) MapCacher(bean interface{}, cacher core.Cacher)

MapCacher Set a table use a special cacher

func (*Engine) MustCols 

func (engine *Engine) MustCols(columns ...string) *Session

MustCols specify some columns must use even if they are empty

func (*Engine) NewDB 

func (engine *Engine) NewDB() (*core.DB, error)

NewDB provides an interface to operate database directly

func (*Engine) NewSession 

func (engine *Engine) NewSession() *Session

NewSession New a session

func (*Engine) NoAutoCondition 

func (engine *Engine) NoAutoCondition(no ...bool) *Session

NoAutoCondition disable auto generate Where condition from bean or not

func (*Engine) NoAutoTime 

func (engine *Engine) NoAutoTime() *Session

NoAutoTime Default if your struct has "created" or "updated" filed tag, the fields will automatically be filled with current time when Insert or Update invoked. Call NoAutoTime if you dont' want to fill automatically.

func (*Engine) NoCache 

func (engine *Engine) NoCache() *Session

NoCache If you has set default cacher, and you want temporilly stop use cache, you can use NoCache()

func (*Engine) NoCascade 

func (engine *Engine) NoCascade() *Session

NoCascade If you do not want to auto cascade load object

func (*Engine) NowTime 

func (engine *Engine) NowTime(sqlTypeName string) interface{}

NowTime return current time

func (*Engine) NowTime2 

func (engine *Engine) NowTime2(sqlTypeName string) (interface{}, time.Time)

NowTime2 return current time

func (*Engine) Nullable 

func (engine *Engine) Nullable(columns ...string) *Session

Nullable set null when column is zero-value and nullable for update

func (*Engine) Omit 

func (engine *Engine) Omit(columns ...string) *Session

Omit only not use the paramters as select or update columns

func (*Engine) OrderBy 

func (engine *Engine) OrderBy(order string) *Session

OrderBy will generate "ORDER BY order"

func (*Engine) Ping 

func (engine *Engine) Ping() error

Ping tests if database is alive

func (*Engine) Query 

func (engine *Engine) Query(sql string, paramStr ...interface{}) (resultsSlice []map[string][]byte, err error)

Query a raw sql and return records as []map[string][]byte

func (*Engine) Quote 

func (engine *Engine) Quote(sql string) string

Quote Use QuoteStr quote the string sql

func (*Engine) QuoteStr 

func (engine *Engine) QuoteStr() string

QuoteStr Engine's database use which charactor as quote. mysql, sqlite use ` and postgres use "

func (*Engine) Rows 

func (engine *Engine) Rows(bean interface{}) (*Rows, error)

Rows return sql.Rows compatible Rows obj, as a forward Iterator object for iterating record by record, bean's non-empty fields are conditions.

func (*Engine) SQL 

func (engine *Engine) SQL(querystring string, args ...interface{}) *Session

SQL method let's you manualy write raw SQL and operate For example: 

engine.SQL("select * from user").Find(&users)

This code will execute "select * from user" and set the records to users

func (*Engine) SQLType 

func (engine *Engine) SQLType(c *core.Column) string

SQLType A simple wrapper to dialect's core.SqlType method

func (*Engine) Select 

func (engine *Engine) Select(str string) *Session

Select customerize your select columns or contents

func (*Engine) SetColumnMapper 

func (engine *Engine) SetColumnMapper(mapper core.IMapper)

SetColumnMapper set the column name mapping rule

func (*Engine) SetDefaultCacher 

func (engine *Engine) SetDefaultCacher(cacher core.Cacher)

SetDefaultCacher set the default cacher. Xorm's default not enable cacher.

func (*Engine) SetDisableGlobalCache 

func (engine *Engine) SetDisableGlobalCache(disable bool)

SetDisableGlobalCache disable global cache or not

func (*Engine) SetExpr 

func (engine *Engine) SetExpr(column string, expression string) *Session

SetExpr provides a update string like "column = {expression}"

func (*Engine) SetLogger 

func (engine *Engine) SetLogger(logger core.ILogger)

SetLogger set the new logger

func (*Engine) SetMapper 

func (engine *Engine) SetMapper(mapper core.IMapper)

SetMapper set the name mapping rules

func (*Engine) SetMaxIdleConns 

func (engine *Engine) SetMaxIdleConns(conns int)

SetMaxIdleConns set the max idle connections on pool, default is 2

func (*Engine) SetMaxOpenConns 

func (engine *Engine) SetMaxOpenConns(conns int)

SetMaxOpenConns is only available for go 1.2+

func (*Engine) SetTableMapper 

func (engine *Engine) SetTableMapper(mapper core.IMapper)

SetTableMapper set the table name mapping rule

func (*Engine) ShowExecTime 

func (engine *Engine) ShowExecTime(show ...bool)

ShowExecTime show SQL statment and execute time or not on logger if log level is great than INFO

func (*Engine) ShowSQL 

func (engine *Engine) ShowSQL(show ...bool)

ShowSQL show SQL statment or not on logger if log level is great than INFO

func (*Engine) Sql 

func (engine *Engine) Sql(querystring string, args ...interface{}) *Session

Sql will be depracated, please use SQL instead

func (*Engine) SqlType 

func (engine *Engine) SqlType(c *core.Column) string

SqlType will be depracated, please use SQLType instead

func (*Engine) StoreEngine 

func (engine *Engine) StoreEngine(storeEngine string) *Session

StoreEngine set store engine when create table, only support mysql now

func (*Engine) Sum 

func (engine *Engine) Sum(bean interface{}, colName string) (float64, error)

Sum sum the records by some column. bean's non-empty fields are conditions.

func (*Engine) Sums 

func (engine *Engine) Sums(bean interface{}, colNames ...string) ([]float64, error)

Sums sum the records by some columns. bean's non-empty fields are conditions.

func (*Engine) SumsInt 

func (engine *Engine) SumsInt(bean interface{}, colNames ...string) ([]int64, error)

SumsInt like Sums but return slice of int64 instead of float64.

func (*Engine) SupportInsertMany 

func (engine *Engine) SupportInsertMany() bool

SupportInsertMany If engine's database support batch insert records like "insert into user values (name, age), (name, age)". When the return is ture, then engine.Insert(&users) will generate batch sql and exeute.

func (*Engine) Sync 

func (engine *Engine) Sync(beans ...interface{}) error

Sync the new struct changes to database, this method will automatically add table, column, index, unique. but will not delete or change anything. If you change some field, you should change the database manually.

func (*Engine) Sync2 

func (engine *Engine) Sync2(beans ...interface{}) error

Sync2 synchronize structs to database tables

func (*Engine) TZTime 

func (engine *Engine) TZTime(t time.Time) time.Time

TZTime change one time to xorm time location

func (*Engine) Table 

func (engine *Engine) Table(tableNameOrBean interface{}) *Session

Table temporarily change the Get, Find, Update's table

func (*Engine) TableInfo 

func (engine *Engine) TableInfo(bean interface{}) *Table

TableInfo get table info according to bean's content

func (*Engine) Unscoped 

func (engine *Engine) Unscoped() *Session

Unscoped always disable struct tag "deleted"

func (*Engine) Update 

func (engine *Engine) Update(bean interface{}, condiBeans ...interface{}) (int64, error)

Update records, bean's non-empty fields are updated contents, condiBean' non-empty filds are conditions CAUTION: 

1.bool will defaultly be updated content nor conditions
 You should call UseBool if you have bool to use.
2.float32 & float64 may be not inexact as conditions

func (*Engine) UseBool 

func (engine *Engine) UseBool(columns ...string) *Session

UseBool xorm automatically retrieve condition according struct, but if struct has bool field, it will ignore them. So use UseBool to tell system to do not ignore them. If no paramters, it will use all the bool field of struct, or it will use paramters's columns

func (*Engine) Where 

func (engine *Engine) Where(query interface{}, args ...interface{}) *Session

Where method provide a condition query

type Filter 

type Filter interface {
	Do(sql string, session *Session) string
}

Filter is an interface to filter SQL

type IdFilter 

type IdFilter struct {
}

IdFilter filter SQL replace (id) to primary key column name

func (*IdFilter) Do 

func (i *IdFilter) Do(sql string, session *Session) string

type IterFunc 

type IterFunc func(idx int, bean interface{}) error

IterFunc only use by Iterate

type LRUCacher 

type LRUCacher struct {
	Max int

	Expired time.Duration

	GcInterval time.Duration
	// contains filtered or unexported fields
}

func NewLRUCacher 

func NewLRUCacher(store core.CacheStore, expired time.Duration, maxSize int, max int) *LRUCacher

func (*LRUCacher) ClearBeans 

func (m *LRUCacher) ClearBeans(tableName string)

func (*LRUCacher) ClearIds 

func (m *LRUCacher) ClearIds(tableName string)

func (*LRUCacher) DelBean 

func (m *LRUCacher) DelBean(tableName string, id string)

func (*LRUCacher) DelIds 

func (m *LRUCacher) DelIds(tableName, sql string)

func (*LRUCacher) GC 

func (m *LRUCacher) GC()

GC check ids lit and sql list to remove all element expired

func (*LRUCacher) GetBean 

func (m *LRUCacher) GetBean(tableName string, id string) interface{}

Get bean according tableName and id from cache

func (*LRUCacher) GetIds 

func (m *LRUCacher) GetIds(tableName, sql string) interface{}

Get all bean's ids according to sql and parameter from cache

func (*LRUCacher) PutBean 

func (m *LRUCacher) PutBean(tableName string, id string, obj interface{})

func (*LRUCacher) PutIds 

func (m *LRUCacher) PutIds(tableName, sql string, ids interface{})

func (*LRUCacher) RunGC 

func (m *LRUCacher) RunGC()

RunGC run once every m.GcInterval

type MemoryStore 

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

memory store

func NewMemoryStore 

func NewMemoryStore() *MemoryStore

func (*MemoryStore) Del 

func (s *MemoryStore) Del(key string) error

func (*MemoryStore) Get 

func (s *MemoryStore) Get(key string) (interface{}, error)

func (*MemoryStore) Put 

func (s *MemoryStore) Put(key string, value interface{}) error

type PgSeqFilter 

type PgSeqFilter struct {
}

PgSeqFilter filter SQL replace ?, ? ... to $1, $2 ...

func (*PgSeqFilter) Do 

func (s *PgSeqFilter) Do(sql string, session *Session) string

type QuoteFilter 

type QuoteFilter struct {
}

QuoteFilter filter SQL replace ` to database's own quote character

func (*QuoteFilter) Do 

func (s *QuoteFilter) Do(sql string, session *Session) string

type Rows 

type Rows struct {
	NoTypeCheck bool
	// contains filtered or unexported fields
}

Rows rows wrapper a rows to

func (*Rows) Close 

func (rows *Rows) Close() error

Close session if session.IsAutoClose is true, and claimed any opened resources

func (*Rows) Err 

func (rows *Rows) Err() error

Err returns the error, if any, that was encountered during iteration. Err may be called after an explicit or implicit Close.

func (*Rows) Next 

func (rows *Rows) Next() bool

Next move cursor to next record, return false if end has reached

func (*Rows) Scan 

func (rows *Rows) Scan(bean interface{}) error

Scan row record to bean properties

type Session 

type Session struct {
	Engine                 *Engine
	Tx                     *core.Tx
	Statement              Statement
	IsAutoCommit           bool
	IsCommitedOrRollbacked bool
	TransType              string
	IsAutoClose            bool

	// Automatically reset the statement after operations that execute a SQL
	// query such as Count(), Find(), Get(), ...
	AutoResetStatement bool
	// contains filtered or unexported fields
}

Session keep a pointer to sql.DB and provides all execution of all kind of database operations.

func (*Session) After 

func (session *Session) After(closures func(interface{})) *Session

After Apply after Processor, affected bean is passed to closure arg

func (*Session) Alias 

func (session *Session) Alias(alias string) *Session

Alias set the table alias

func (*Session) AllCols 

func (session *Session) AllCols() *Session

AllCols ask all columns

func (*Session) And 

func (session *Session) And(query interface{}, args ...interface{}) *Session

And provides custom query condition.

func (*Session) Asc 

func (session *Session) Asc(colNames ...string) *Session

Asc provide asc order by query condition, the input parameters are columns.

func (*Session) Before 

func (session *Session) Before(closures func(interface{})) *Session

Before Apply before Processor, affected bean is passed to closure arg

func (*Session) Begin 

func (session *Session) Begin() error

Begin a transaction

func (*Session) Cascade 

func (session *Session) Cascade(trueOrFalse ...bool) *Session

Cascade indicates if loading sub Struct

func (*Session) Charset 

func (session *Session) Charset(charset string) *Session

Charset is only avialble mysql dialect currently

func (*Session) Clone 

func (session *Session) Clone() *Session

Clone copy all the session's content and return a new session

func (*Session) Close 

func (session *Session) Close()

Close release the connection from pool

func (*Session) Cols 

func (session *Session) Cols(columns ...string) *Session

Cols provides some columns to special

func (*Session) Commit 

func (session *Session) Commit() error

Commit When using transaction, Commit will commit all operations.

func (*Session) Count 

func (session *Session) Count(bean interface{}) (int64, error)

Count counts the records. bean's non-empty fields are conditions.

func (*Session) CreateIndexes 

func (session *Session) CreateIndexes(bean interface{}) error

CreateIndexes create indexes

func (*Session) CreateTable 

func (session *Session) CreateTable(bean interface{}) error

CreateTable create a table according a bean

func (*Session) CreateUniques 

func (session *Session) CreateUniques(bean interface{}) error

CreateUniques create uniques

func (*Session) DB 

func (session *Session) DB() *core.DB

DB db return the wrapper of sql.DB

func (*Session) Decr 

func (session *Session) Decr(column string, arg ...interface{}) *Session

Decr provides a query string like "count = count - 1"

func (*Session) Delete 

func (session *Session) Delete(bean interface{}) (int64, error)

Delete records, bean's non-empty fields are conditions

func (*Session) Desc 

func (session *Session) Desc(colNames ...string) *Session

Desc provide desc order by query condition, the input parameters are columns.

func (*Session) Distinct 

func (session *Session) Distinct(columns ...string) *Session

Distinct use for distinct columns. Caution: when you are using cache, distinct will not be cached because cache system need id, but distinct will not provide id

func (*Session) DropIndexes 

func (session *Session) DropIndexes(bean interface{}) error

DropIndexes drop indexes

func (*Session) DropTable 

func (session *Session) DropTable(beanOrTableName interface{}) error

DropTable drop table will drop table if exist, if drop failed, it will return error

func (*Session) Exec 

func (session *Session) Exec(sqlStr string, args ...interface{}) (sql.Result, error)

Exec raw sql

func (*Session) Find 

func (session *Session) Find(rowsSlicePtr interface{}, condiBean ...interface{}) error

Find retrieve records from table, condiBeans's non-empty fields are conditions. beans could be []Struct, []*Struct, map[int64]Struct map[int64]*Struct

func (*Session) ForUpdate 

func (session *Session) ForUpdate() *Session

ForUpdate Set Read/Write locking for UPDATE

func (*Session) Get 

func (session *Session) Get(bean interface{}) (bool, error)

Get retrieve one record from database, bean's non-empty fields will be as conditions

func (*Session) GroupBy 

func (session *Session) GroupBy(keys string) *Session

GroupBy Generate Group By statement

func (*Session) Having 

func (session *Session) Having(conditions string) *Session

Having Generate Having statement

func (*Session) ID 

func (session *Session) ID(id interface{}) *Session

ID provides converting id as a query condition

func (*Session) Id 

func (session *Session) Id(id interface{}) *Session

Id will be deprecated, please use ID instead

func (*Session) In 

func (session *Session) In(column string, args ...interface{}) *Session

In provides a query string like "id in (1, 2, 3)"

func (*Session) Incr 

func (session *Session) Incr(column string, arg ...interface{}) *Session

Incr provides a query string like "count = count + 1"

func (*Session) Init 

func (session *Session) Init()

Init reset the session as the init status.

func (*Session) Insert 

func (session *Session) Insert(beans ...interface{}) (int64, error)

Insert insert one or more beans

func (*Session) InsertMulti 

func (session *Session) InsertMulti(rowsSlicePtr interface{}) (int64, error)

InsertMulti insert multiple records

func (*Session) InsertOne 

func (session *Session) InsertOne(bean interface{}) (int64, error)

InsertOne insert only one struct into database as a record. The in parameter bean must a struct or a point to struct. The return parameter is inserted and error

func (*Session) IsTableEmpty 

func (session *Session) IsTableEmpty(bean interface{}) (bool, error)

IsTableEmpty if table have any records

func (*Session) IsTableExist 

func (session *Session) IsTableExist(beanOrTableName interface{}) (bool, error)

IsTableExist if a table is exist

func (*Session) Iterate 

func (session *Session) Iterate(bean interface{}, fun IterFunc) error

Iterate record by record handle records from table, condiBeans's non-empty fields are conditions. beans could be []Struct, []*Struct, map[int64]Struct map[int64]*Struct

func (*Session) Join 

func (session *Session) Join(joinOperator string, tablename interface{}, condition string, args ...interface{}) *Session

Join join_operator should be one of INNER, LEFT OUTER, CROSS etc - this will be prepended to JOIN

func (*Session) LastSQL 

func (session *Session) LastSQL() (string, []interface{})

LastSQL returns last query information

func (*Session) Limit 

func (session *Session) Limit(limit int, start ...int) *Session

Limit provide limit and offset query condition

func (*Session) MustCols 

func (session *Session) MustCols(columns ...string) *Session

MustCols specify some columns must use even if they are empty

func (*Session) NoAutoCondition 

func (session *Session) NoAutoCondition(no ...bool) *Session

NoAutoCondition disable generate SQL condition from beans

func (*Session) NoAutoTime 

func (session *Session) NoAutoTime() *Session

NoAutoTime means do not automatically give created field and updated field the current time on the current session temporarily

func (*Session) NoCache 

func (session *Session) NoCache() *Session

NoCache ask this session do not retrieve data from cache system and get data from database directly.

func (*Session) NoCascade 

func (session *Session) NoCascade() *Session

NoCascade indicate that no cascade load child object

func (*Session) NotIn 

func (session *Session) NotIn(column string, args ...interface{}) *Session

NotIn provides a query string like "id in (1, 2, 3)"

func (*Session) Nullable 

func (session *Session) Nullable(columns ...string) *Session

Nullable Set null when column is zero-value and nullable for update

func (*Session) Omit 

func (session *Session) Omit(columns ...string) *Session

Omit Only not use the paramters as select or update columns

func (*Session) Or 

func (session *Session) Or(query interface{}, args ...interface{}) *Session

Or provides custom query condition.

func (*Session) OrderBy 

func (session *Session) OrderBy(order string) *Session

OrderBy provide order by query condition, the input parameter is the content after order by on a sql statement.

func (*Session) Ping 

func (session *Session) Ping() error

Ping test if database is ok

func (*Session) Prepare 

func (session *Session) Prepare() *Session

Prepare set a flag to session that should be prepare statment before execute query

func (*Session) Query 

func (session *Session) Query(sqlStr string, paramStr ...interface{}) (resultsSlice []map[string][]byte, err error)

Query a raw sql and return records as []map[string][]byte

func (*Session) Rollback 

func (session *Session) Rollback() error

Rollback When using transaction, you can rollback if any error

func (*Session) Rows 

func (session *Session) Rows(bean interface{}) (*Rows, error)

Rows return sql.Rows compatible Rows obj, as a forward Iterator object for iterating record by record, bean's non-empty fields are conditions.

func (*Session) SQL 

func (session *Session) SQL(querystring string, args ...interface{}) *Session

SQL provides raw sql input parameter. When you have a complex SQL statement and cannot use Where, Id, In and etc. Methods to describe, you can use SQL.

func (*Session) Select 

func (session *Session) Select(str string) *Session

Select provides some columns to special

func (*Session) SetExpr 

func (session *Session) SetExpr(column string, expression string) *Session

SetExpr provides a query string like "column = {expression}"

func (*Session) Sql 

func (session *Session) Sql(querystring string, args ...interface{}) *Session

Sql !DEPRECIATED! will be deprecated, please use SQL instead.

func (*Session) StoreEngine 

func (session *Session) StoreEngine(storeEngine string) *Session

StoreEngine is only avialble mysql dialect currently

func (*Session) Sum 

func (session *Session) Sum(bean interface{}, columnName string) (float64, error)

Sum call sum some column. bean's non-empty fields are conditions.

func (*Session) Sums 

func (session *Session) Sums(bean interface{}, columnNames ...string) ([]float64, error)

Sums call sum some columns. bean's non-empty fields are conditions.

func (*Session) SumsInt 

func (session *Session) SumsInt(bean interface{}, columnNames ...string) ([]int64, error)

SumsInt sum specify columns and return as []int64 instead of []float64

func (*Session) Sync2 

func (session *Session) Sync2(beans ...interface{}) error

Sync2 synchronize structs to database tables

func (*Session) Table 

func (session *Session) Table(tableNameOrBean interface{}) *Session

Table can input a string or pointer to struct for special a table to operate.

func (*Session) Unscoped 

func (session *Session) Unscoped() *Session

Unscoped always disable struct tag "deleted"

func (*Session) Update 

func (session *Session) Update(bean interface{}, condiBean ...interface{}) (int64, error)

Update records, bean's non-empty fields are updated contents, condiBean' non-empty filds are conditions CAUTION: 

1.bool will defaultly be updated content nor conditions
 You should call UseBool if you have bool to use.
2.float32 & float64 may be not inexact as conditions

func (*Session) UseBool 

func (session *Session) UseBool(columns ...string) *Session

UseBool automatically retrieve condition according struct, but if struct has bool field, it will ignore them. So use UseBool to tell system to do not ignore them. If no paramters, it will use all the bool field of struct, or it will use paramters's columns

func (*Session) Where 

func (session *Session) Where(query interface{}, args ...interface{}) *Session

Where provides custom query condition.

type SimpleLogger 

type SimpleLogger struct {
	DEBUG *log.Logger
	ERR   *log.Logger
	INFO  *log.Logger
	WARN  *log.Logger
	// contains filtered or unexported fields
}

SimpleLogger is the default implment of core.ILogger

func NewSimpleLogger 

func NewSimpleLogger(out io.Writer) *SimpleLogger

NewSimpleLogger use a special io.Writer as logger output

func NewSimpleLogger2 

func NewSimpleLogger2(out io.Writer, prefix string, flag int) *SimpleLogger

NewSimpleLogger2 let you customrize your logger prefix and flag

func NewSimpleLogger3 

func NewSimpleLogger3(out io.Writer, prefix string, flag int, l core.LogLevel) *SimpleLogger

NewSimpleLogger3 let you customrize your logger prefix and flag and logLevel

func (*SimpleLogger) Debug 

func (s *SimpleLogger) Debug(v ...interface{})

Debug implement core.ILogger

func (*SimpleLogger) Debugf 

func (s *SimpleLogger) Debugf(format string, v ...interface{})

Debugf implement core.ILogger

func (*SimpleLogger) Error 

func (s *SimpleLogger) Error(v ...interface{})

Error implement core.ILogger

func (*SimpleLogger) Errorf 

func (s *SimpleLogger) Errorf(format string, v ...interface{})

Errorf implement core.ILogger

func (*SimpleLogger) Info 

func (s *SimpleLogger) Info(v ...interface{})

Info implement core.ILogger

func (*SimpleLogger) Infof 

func (s *SimpleLogger) Infof(format string, v ...interface{})

Infof implement core.ILogger

func (*SimpleLogger) IsShowSQL 

func (s *SimpleLogger) IsShowSQL() bool

IsShowSQL implement core.ILogger

func (*SimpleLogger) Level 

func (s *SimpleLogger) Level() core.LogLevel

Level implement core.ILogger

func (*SimpleLogger) SetLevel 

func (s *SimpleLogger) SetLevel(l core.LogLevel)

SetLevel implement core.ILogger

func (*SimpleLogger) ShowSQL 

func (s *SimpleLogger) ShowSQL(show ...bool)

ShowSQL implement core.ILogger

func (*SimpleLogger) Warn 

func (s *SimpleLogger) Warn(v ...interface{})

Warn implement core.ILogger

func (*SimpleLogger) Warnf 

func (s *SimpleLogger) Warnf(format string, v ...interface{})

Warnf implement core.ILogger

type Statement 

type Statement struct {
	RefTable *core.Table
	Engine   *Engine
	Start    int
	LimitN   int
	IdParam  *core.PK
	OrderStr string
	JoinStr  string

	GroupByStr string
	HavingStr  string
	ColumnStr  string

	OmitStr      string
	AltTableName string

	RawSQL      string
	RawParams   []interface{}
	UseCascade  bool
	UseAutoJoin bool
	StoreEngine string
	Charset     string
	UseCache    bool
	UseAutoTime bool

	IsDistinct  bool
	IsForUpdate bool
	TableAlias  string
	// contains filtered or unexported fields
}

Statement save all the sql info for executing SQL

func (*Statement) Alias 

func (statement *Statement) Alias(alias string) *Statement

Alias set the table alias

func (*Statement) AllCols 

func (statement *Statement) AllCols() *Statement

AllCols update use only: update all columns

func (*Statement) And 

func (statement *Statement) And(query interface{}, args ...interface{}) *Statement

And add Where & and statment

func (*Statement) Asc 

func (statement *Statement) Asc(colNames ...string) *Statement

Asc provide asc order by query condition, the input parameters are columns.

func (*Statement) Cols 

func (statement *Statement) Cols(columns ...string) *Statement

Cols generate "col1, col2" statement

func (*Statement) Decr 

func (statement *Statement) Decr(column string, arg ...interface{}) *Statement

Decr Generate "Update ... Set column = column - arg" statment

func (*Statement) Desc 

func (statement *Statement) Desc(colNames ...string) *Statement

Desc generate `ORDER BY xx DESC`

func (*Statement) Distinct 

func (statement *Statement) Distinct(columns ...string) *Statement

Generate "Distince col1, col2 " statment

func (*Statement) ForUpdate 

func (statement *Statement) ForUpdate() *Statement

Generate "SELECT ... FOR UPDATE" statment

func (*Statement) GroupBy 

func (statement *Statement) GroupBy(keys string) *Statement

GroupBy generate "Group By keys" statement

func (*Statement) Having 

func (statement *Statement) Having(conditions string) *Statement

Having generate "Having conditions" statement

func (*Statement) Id 

func (statement *Statement) Id(id interface{}) *Statement

Id generate "where id = ? " statment or for composite key "where key1 = ? and key2 = ?"

func (*Statement) In 

func (statement *Statement) In(column string, args ...interface{}) *Statement

In generate "Where column IN (?) " statment

func (*Statement) Incr 

func (statement *Statement) Incr(column string, arg ...interface{}) *Statement

Incr Generate "Update ... Set column = column + arg" statment

func (*Statement) Init 

func (statement *Statement) Init()

Init reset all the statment's fields

func (*Statement) Join 

func (statement *Statement) Join(joinOP string, tablename interface{}, condition string, args ...interface{}) *Statement

Join The joinOP should be one of INNER, LEFT OUTER, CROSS etc - this will be prepended to JOIN

func (*Statement) JoinColumns 

func (statement *Statement) JoinColumns(cols []*core.Column, includeTableName bool) string

func (*Statement) Limit 

func (statement *Statement) Limit(limit int, start ...int) *Statement

Limit generate LIMIT start, limit statement

func (*Statement) MustCols 

func (statement *Statement) MustCols(columns ...string) *Statement

MustCols update use only: must update columns

func (*Statement) NoAutoCondition 

func (statement *Statement) NoAutoCondition(no ...bool) *Statement

NoAutoCondition if you do not want convert bean's field as query condition, then use this function

func (*Statement) NotIn 

func (statement *Statement) NotIn(column string, args ...interface{}) *Statement

NotIn generate "Where column IN (?) " statment

func (*Statement) Nullable 

func (statement *Statement) Nullable(columns ...string)

Nullable Update use only: update columns to null when value is nullable and zero-value

func (*Statement) Omit 

func (statement *Statement) Omit(columns ...string)

Omit do not use the columns

func (*Statement) Or 

func (statement *Statement) Or(query interface{}, args ...interface{}) *Statement

Or add Where & Or statment

func (*Statement) OrderBy 

func (statement *Statement) OrderBy(order string) *Statement

OrderBy generate "Order By order" statement

func (*Statement) Select 

func (s *Statement) Select(str string) *Statement

Select replace select

func (*Statement) SetExpr 

func (statement *Statement) SetExpr(column string, expression string) *Statement

SetExpr Generate "Update ... Set column = {expression}" statment

func (*Statement) Sql 

func (statement *Statement) Sql(querystring string, args ...interface{}) *Statement

Sql add the raw sql statement

func (*Statement) Table 

func (statement *Statement) Table(tableNameOrBean interface{}) *Statement

Table tempororily set table name, the parameter could be a string or a pointer of struct

func (*Statement) TableName 

func (statement *Statement) TableName() string

TableName return current tableName

func (*Statement) Top 

func (statement *Statement) Top(limit int) *Statement

Top generate LIMIT limit statement

func (*Statement) Unscoped 

func (statement *Statement) Unscoped() *Statement

Unscoped always disable struct tag "deleted"

func (*Statement) UseBool 

func (statement *Statement) UseBool(columns ...string) *Statement

UseBool indicates that use bool fields as update contents and query contiditions

func (*Statement) Where 

func (statement *Statement) Where(query interface{}, args ...interface{}) *Statement

Where add Where statment

type SyslogLogger 

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

SyslogLogger will be depricated

func NewSyslogLogger 

func NewSyslogLogger(w *syslog.Writer) *SyslogLogger

func (*SyslogLogger) Debug 

func (s *SyslogLogger) Debug(v ...interface{})

func (*SyslogLogger) Debugf 

func (s *SyslogLogger) Debugf(format string, v ...interface{})

func (*SyslogLogger) Error 

func (s *SyslogLogger) Error(v ...interface{})

func (*SyslogLogger) Errorf 

func (s *SyslogLogger) Errorf(format string, v ...interface{})

func (*SyslogLogger) Info 

func (s *SyslogLogger) Info(v ...interface{})

func (*SyslogLogger) Infof 

func (s *SyslogLogger) Infof(format string, v ...interface{})

func (*SyslogLogger) IsShowSQL 

func (s *SyslogLogger) IsShowSQL() bool

func (*SyslogLogger) Level 

func (s *SyslogLogger) Level() core.LogLevel

func (*SyslogLogger) SetLevel 

func (s *SyslogLogger) SetLevel(l core.LogLevel)

SetLevel always return error, as current log/syslog package doesn't allow to set priority level after syslog.Writer created

func (*SyslogLogger) ShowSQL 

func (s *SyslogLogger) ShowSQL(show ...bool)

func (*SyslogLogger) Warn 

func (s *SyslogLogger) Warn(v ...interface{})

func (*SyslogLogger) Warnf 

func (s *SyslogLogger) Warnf(format string, v ...interface{})

type Table 

type Table struct {
	*core.Table
	Name string
}

Table table struct

type TableName 

type TableName interface {
	TableName() string
}

TableName table name interface to define customerize table name

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