db

package
v0.4.2 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Oct 16, 2019 License: Apache-2.0 Imports: 12 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	DefaultSelectLimit = 200
)

Variables

View Source 
var (
	ErrNotFound           = dbr.ErrNotFound
	ErrNotSupported       = dbr.ErrNotSupported
	ErrTableNotSpecified  = dbr.ErrTableNotSpecified
	ErrColumnNotSpecified = dbr.ErrColumnNotSpecified
	ErrInvalidPointer     = dbr.ErrInvalidPointer
	ErrPlaceholderCount   = dbr.ErrPlaceholderCount
	ErrInvalidSliceLength = dbr.ErrInvalidSliceLength
	ErrCantConvertToTime  = dbr.ErrCantConvertToTime
	ErrInvalidTimestring  = dbr.ErrInvalidTimestring
)

package errors

Functions

func And 

func And(cond ...dbr.Builder) dbr.Builder

And creates AND from a list of conditions

func Eq 

func Eq(column string, value interface{}) dbr.Builder

Eq is `=`. When value is nil, it will be translated to `IS NULL`. When value is a slice, it will be translated to `IN`. Otherwise it will be translated to `=`.

func GetColumnsFromStruct added in v0.2.2 

func GetColumnsFromStruct(s interface{}) []string

func GetColumnsFromStructWithPrefix added in v0.2.2 

func GetColumnsFromStructWithPrefix(prefix string, s interface{}) []string

func GetLimit 

func GetLimit(n uint64) uint64

func GetOffset 

func GetOffset(n uint64) uint64

func Gt 

func Gt(column string, value interface{}) dbr.Builder

Gt is `>`.

func Gte 

func Gte(column string, value interface{}) dbr.Builder

Gte is '>='.

func Like 

func Like(column string, value string) dbr.Builder

func Lt 

func Lt(column string, value interface{}) dbr.Builder

Lt is '<'.

func Lte 

func Lte(column string, value interface{}) dbr.Builder

Lte is `<=`.

func Neq 

func Neq(column string, value interface{}) dbr.Builder

Neq is `!=`. When value is nil, it will be translated to `IS NOT NULL`. When value is a slice, it will be translated to `NOT IN`. Otherwise it will be translated to `!=`.

func NewContext added in v0.4.2 

func NewContext(ctx context.Context, cfg config.MysqlConfig) context.Context

func Or 

func Or(cond ...dbr.Builder) dbr.Builder

Or creates OR from a list of conditions

func Prefix added in v0.4.0 

func Prefix(column string, value string) dbr.Builder

func WithPrefix added in v0.2.2 

func WithPrefix(prefix, str string) string

Types

type Conn added in v0.2.0 

type Conn struct {
	*dbr.Session

	InsertHook InsertHook
	UpdateHook UpdateHook
	DeleteHook DeleteHook
	// contains filtered or unexported fields
}

func (*Conn) DeleteFrom added in v0.2.0 

func (conn *Conn) DeleteFrom(table string) *DeleteQuery

func (*Conn) InsertInto added in v0.2.0 

func (conn *Conn) InsertInto(table string) *InsertQuery

func (*Conn) Select added in v0.2.0 

func (conn *Conn) Select(columns ...string) *SelectQuery

func (*Conn) SelectAll added in v0.2.0 

func (conn *Conn) SelectAll(columns ...string) *SelectQuery

func (*Conn) SelectBySql added in v0.2.0 

func (conn *Conn) SelectBySql(query string, value ...interface{}) *SelectQuery

func (*Conn) Update added in v0.2.0 

func (conn *Conn) Update(table string) *UpdateQuery

type Database 

type Database struct {
	Conn *dbr.Connection
}

func FromContext added in v0.4.2 

func FromContext(ctx context.Context) (*Database, bool)

func OpenDatabase 

func OpenDatabase(cfg config.MysqlConfig) (*Database, error)

func (*Database) New added in v0.2.0 

func (db *Database) New(ctx context.Context) *Conn

type DeleteHook added in v0.1.7 

type DeleteHook func(query *DeleteQuery)

type DeleteQuery 

type DeleteQuery struct {
	*dbr.DeleteBuilder

	Hook DeleteHook
	// contains filtered or unexported fields
}

func (*DeleteQuery) Exec 

func (b *DeleteQuery) Exec() (sql.Result, error)

func (*DeleteQuery) Limit 

func (b *DeleteQuery) Limit(n uint64) *DeleteQuery

func (*DeleteQuery) Where 

func (b *DeleteQuery) Where(query interface{}, value ...interface{}) *DeleteQuery

type EqCondition added in v0.1.7 

type EqCondition struct {
	dbr.Builder
	Column string
	Value  interface{}
}

type EventReceiver 

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

EventReceiver is a sentinel EventReceiver; use it if the caller doesn't supply one

func (*EventReceiver) Event 

func (n *EventReceiver) Event(eventName string)

Event receives a simple notification when various events occur

func (*EventReceiver) EventErr 

func (n *EventReceiver) EventErr(eventName string, err error) error

EventErr receives a notification of an error if one occurs

func (*EventReceiver) EventErrKv 

func (n *EventReceiver) EventErrKv(eventName string, err error, kvs map[string]string) error

EventErrKv receives a notification of an error if one occurs along with optional key/value data

func (*EventReceiver) EventKv 

func (n *EventReceiver) EventKv(eventName string, kvs map[string]string)

EventKv receives a notification when various events occur along with optional key/value data

func (*EventReceiver) Timing 

func (n *EventReceiver) Timing(eventName string, nanoseconds int64)

Timing receives the time an event took to happen

func (*EventReceiver) TimingKv 

func (n *EventReceiver) TimingKv(eventName string, nanoseconds int64, kvs map[string]string)

TimingKv receives the time an event took to happen along with optional key/value data

type InsertHook added in v0.1.7 

type InsertHook func(query *InsertQuery)

type InsertQuery 

type InsertQuery struct {
	*dbr.InsertBuilder

	Hook InsertHook
	// contains filtered or unexported fields
}

func (*InsertQuery) Columns 

func (b *InsertQuery) Columns(columns ...string) *InsertQuery

func (*InsertQuery) Exec 

func (b *InsertQuery) Exec() (sql.Result, error)

func (*InsertQuery) Record 

func (b *InsertQuery) Record(structValue interface{}) *InsertQuery

type SelectQuery 

type SelectQuery struct {
	*dbr.SelectBuilder

	JoinCount int // for join filter
	// contains filtered or unexported fields
}

func (*SelectQuery) Count 

func (b *SelectQuery) Count() (count uint32, err error)

func (*SelectQuery) Distinct 

func (b *SelectQuery) Distinct() *SelectQuery

func (*SelectQuery) From 

func (b *SelectQuery) From(table string) *SelectQuery

func (*SelectQuery) GroupBy 

func (b *SelectQuery) GroupBy(col ...string) *SelectQuery

func (*SelectQuery) Join 

func (b *SelectQuery) Join(table, on interface{}) *SelectQuery

func (*SelectQuery) JoinAs 

func (b *SelectQuery) JoinAs(table string, alias string, on interface{}) *SelectQuery

func (*SelectQuery) Limit 

func (b *SelectQuery) Limit(n uint64) *SelectQuery

func (*SelectQuery) Load 

func (b *SelectQuery) Load(value interface{}) (int, error)

func (*SelectQuery) LoadOne 

func (b *SelectQuery) LoadOne(value interface{}) error

func (*SelectQuery) Offset 

func (b *SelectQuery) Offset(n uint64) *SelectQuery

func (*SelectQuery) OrderDir 

func (b *SelectQuery) OrderDir(col string, isAsc bool) *SelectQuery

func (*SelectQuery) Where 

func (b *SelectQuery) Where(query interface{}, value ...interface{}) *SelectQuery

type UpdateHook added in v0.1.7 

type UpdateHook func(query *UpdateQuery)

type UpdateQuery 

type UpdateQuery struct {
	*dbr.UpdateBuilder

	Hook UpdateHook
	// contains filtered or unexported fields
}

func (*UpdateQuery) Exec 

func (b *UpdateQuery) Exec() (sql.Result, error)

func (*UpdateQuery) Limit 

func (b *UpdateQuery) Limit(n uint64) *UpdateQuery

func (*UpdateQuery) Set 

func (b *UpdateQuery) Set(column string, value interface{}) *UpdateQuery

func (*UpdateQuery) SetMap 

func (b *UpdateQuery) SetMap(m map[string]interface{}) *UpdateQuery

func (*UpdateQuery) Where 

func (b *UpdateQuery) Where(query interface{}, value ...interface{}) *UpdateQuery

Source Files

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