entity

Documentation

Index

• Constants
• type Columns
  • func (s *Columns) Len() int
  • func (s *Columns) Less(i, j int) bool
  • func (s *Columns) Swap(i, j int)
• type FieldMapper
  • func DefaultFieldMapper() *FieldMapper
  • func NewFieldMapper() *FieldMapper
  • func (m *FieldMapper) Columns(entity interface{}) (*Columns, *Columns)
  • func (m *FieldMapper) ColumnsForType(typ reflect.Type) []string
  • func (m *FieldMapper) Keys(entity interface{}) (*Values, error)
  • func (m *FieldMapper) KeysForType(typ reflect.Type) []string
  • func (m *FieldMapper) TraversalsByName(t reflect.Type, names []string) ([][]int, []bool)
  • func (m *FieldMapper) TraversalsByNameFunc(t reflect.Type, names []string, fn func(int, []int, bool) error) error
• type Generator
  • func NewGenerator(m *FieldMapper) *Generator
  • func (g *Generator) Delete(table string, keys *Columns) (string, []interface{})
  • func (g *Generator) Insert(table string, entity interface{}) (string, []interface{})
  • func (g *Generator) Select(table string, entity interface{}, keys *Columns) (string, []interface{})
  • func (g *Generator) Update(table string, entity interface{}, names []string) (string, []interface{})
• type Values
• type Zeroer

Constants

const Tag = "db"

Types

type Columns

type Columns struct {
	Cols []string
	Vals []interface{}
}

func (*Columns) Len

func (s *Columns) Len() int

func (*Columns) Less

func (s *Columns) Less(i, j int) bool

func (*Columns) Swap

func (s *Columns) Swap(i, j int)

type FieldMapper

type FieldMapper struct {
	*reflectx.Mapper
}

func DefaultFieldMapper

func DefaultFieldMapper() *FieldMapper

func NewFieldMapper

func NewFieldMapper() *FieldMapper

func (*FieldMapper) Columns

func (m *FieldMapper) Columns(entity interface{}) (*Columns, *Columns)

func (*FieldMapper) ColumnsForType

func (m *FieldMapper) ColumnsForType(typ reflect.Type) []string

func (*FieldMapper) Keys

func (m *FieldMapper) Keys(entity interface{}) (*Values, error)

func (*FieldMapper) KeysForType

func (m *FieldMapper) KeysForType(typ reflect.Type) []string

func (*FieldMapper) TraversalsByName

func (m *FieldMapper) TraversalsByName(t reflect.Type, names []string) ([][]int, []bool)

TraversalsByName returns a slice of int slices which represent the struct traversals for each mapped name and a slice of bools which indicates whether each such traversal is omit-empty. Panics if t is not a struct or Indirectable to a struct. Returns empty int slice for each name not found.

func (*FieldMapper) TraversalsByNameFunc

func (m *FieldMapper) TraversalsByNameFunc(t reflect.Type, names []string, fn func(int, []int, bool) error) error

TraversalsByNameFunc traverses the mapped names and calls fn with the index of each name and the struct traversal represented by that name. Panics if t is not a struct or Indirectable to a struct. Returns the first error returned by fn or nil.

type Generator

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

func NewGenerator

func NewGenerator(m *FieldMapper) *Generator

func (*Generator) Delete

func (g *Generator) Delete(table string, keys *Columns) (string, []interface{})

func (*Generator) Insert

func (g *Generator) Insert(table string, entity interface{}) (string, []interface{})

func (*Generator) Select

func (g *Generator) Select(table string, entity interface{}, keys *Columns) (string, []interface{})

func (*Generator) Update

func (g *Generator) Update(table string, entity interface{}, names []string) (string, []interface{})

type Values

type Values struct {
	Cols []string
	Vals []reflect.Value
}

type Zeroer

type Zeroer interface {
	IsZero() bool
}

implemented by values that can express their zeronoess/emptiness