entity

package
v0.1.6 Latest Latest
Warning

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

 Go to latest Published: Dec 28, 2020 License: MIT Imports: 7 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var (
	ErrInvalidType = errors.New("invalid type, must be struct or pointer to struct")
)

Functions

func CellIsLazy 

func CellIsLazy(cell *Cell) bool

func NewLazyCollection 

func NewLazyCollection(extractor func() *Collection, afterInit func(collection *Collection)) *lazyCollection

func NewLazyWrappedEntity 

func NewLazyWrappedEntity(extractor func() *Collection, afterInit func(entity *Cell)) *lazyEntity

Types

type Box 

type Box struct {
	Entity interface{}
	Meta   *MetaInfo
}

func NewBox 

func NewBox(entity interface{}, meta *MetaInfo) *Box

func (*Box) ExtractPk 

func (b *Box) ExtractPk() (interface{}, error)

func (*Box) GetEName 

func (b *Box) GetEName() Name

func (*Box) GetRelatedMeta 

func (b *Box) GetRelatedMeta(relEntityName Name) *MetaInfo

type Cell 

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

Cell - d3 container for single entity.

func NewCell 

func NewCell(entity interface{}) *Cell

NewCell - create new Cell.

func NewCellFromWrapper 

func NewCellFromWrapper(w wrapper) *Cell

func (*Cell) DeepCopy 

func (c *Cell) DeepCopy() interface{}

func (*Cell) IsNil 

func (c *Cell) IsNil() bool

isNil - return true if nil in Cell.

func (*Cell) Unwrap 

func (c *Cell) Unwrap() interface{}

unwrap - return entity under Cell.

type Collection 

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

Collection - d3 container for multiple entities of same type.

func NewCollection 

func NewCollection(entities ...interface{}) *Collection

NewCollection - create new collection of entities.

func NewCollectionFromCollectionner 

func NewCollectionFromCollectionner(c collectionner) *Collection

func (*Collection) Add 

func (c *Collection) Add(el interface{})

add - add element to collection.

func (*Collection) Count 

func (c *Collection) Count() int

count - return count of elements in collection.

func (*Collection) DeepCopy 

func (c *Collection) DeepCopy() interface{}

func (*Collection) Empty 

func (c *Collection) Empty() bool

empty - return true if collection has 0 entities, false otherwise.

func (*Collection) Get 

func (c *Collection) Get(index int) interface{}

get - get element from collection by index.

func (*Collection) MakeIter 

func (c *Collection) MakeIter() *iterator

MakeIter - creates structure for iterate over collection.

func (*Collection) Remove 

func (c *Collection) Remove(index int)

remove - delete element from collection by index.

func (*Collection) ToSlice 

func (c *Collection) ToSlice() []interface{}

toSlice - return slice of entities.

type Copiable 

type Copiable interface {
	DeepCopy() interface{}
}

type Copier 

type Copier func(src interface{}) interface{}

type D3Entity 

type D3Entity interface {
	D3Token() MetaToken
}

type DeleteStrategy 

type DeleteStrategy int
const (
	None DeleteStrategy
	Cascade
	Nullable
)

type FieldComparator 

type FieldComparator func(e1, e2 interface{}, fName string) bool

type FieldExtractor 

type FieldExtractor func(e interface{}, name string) (interface{}, error)

type FieldInfo 

type FieldInfo struct {
	Name           string
	AssociatedType reflect.Type
	DbAlias        string
	FullDbAlias    string
}

type FieldSetter 

type FieldSetter func(e interface{}, name string, val interface{}) error

type Index added in v0.1.5 

type Index struct {
	Name    string
	Columns []string
	Unique  bool
}

type Instantiator 

type Instantiator func() interface{}

type InternalTools 

type InternalTools struct {
	ExtractField  FieldExtractor
	SetFieldVal   FieldSetter
	NewInstance   Instantiator
	Copy          Copier
	CompareFields FieldComparator
}

type KeyTpl 

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

func (*KeyTpl) Key 

func (k *KeyTpl) Key() []interface{}

func (*KeyTpl) Projection 

func (k *KeyTpl) Projection() []interface{}

type LazyContainer 

type LazyContainer interface {
	IsInitialized() bool
}

type ManyToMany 

type ManyToMany struct {
	JoinColumn      string
	ReferenceColumn string
	JoinTable       string
	// contains filtered or unexported fields
}

func (*ManyToMany) DeleteStrategy 

func (b *ManyToMany) DeleteStrategy() DeleteStrategy

func (*ManyToMany) ExtractCollection 

func (m *ManyToMany) ExtractCollection(ownerBox *Box) (*Collection, error)

func (*ManyToMany) Field 

func (b *ManyToMany) Field() *FieldInfo

func (*ManyToMany) RelatedWith 

func (b *ManyToMany) RelatedWith() Name

func (*ManyToMany) Type 

func (b *ManyToMany) Type() RelationType

type ManyToOne 

type ManyToOne struct {
	JoinColumn      string
	ReferenceColumn string
	// contains filtered or unexported fields
}

func (*ManyToOne) DeleteStrategy 

func (b *ManyToOne) DeleteStrategy() DeleteStrategy

func (*ManyToOne) Field 

func (b *ManyToOne) Field() *FieldInfo

func (*ManyToOne) RelatedWith 

func (b *ManyToOne) RelatedWith() Name

func (*ManyToOne) Type 

func (b *ManyToOne) Type() RelationType

type ManyToOneInverse 

type ManyToOneInverse struct {
	MappedBy string
	// contains filtered or unexported fields
}

func (*ManyToOneInverse) DeleteStrategy 

func (b *ManyToOneInverse) DeleteStrategy() DeleteStrategy

func (*ManyToOneInverse) Field 

func (b *ManyToOneInverse) Field() *FieldInfo

func (*ManyToOneInverse) RelatedWith 

func (b *ManyToOneInverse) RelatedWith() Name

func (*ManyToOneInverse) Type 

func (b *ManyToOneInverse) Type() RelationType

type MetaInfo 

type MetaInfo struct {
	Tpl        interface{}
	EntityName Name
	TableName  string
	Indexes    []Index

	Relations map[string]Relation
	Fields    map[string]*FieldInfo
	Pk        *pk

	RelatedMeta map[Name]*MetaInfo
	Tools       InternalTools
}

func NewMeta 

func NewMeta(e interface{}) (*MetaInfo, error)

func (*MetaInfo) CreateKeyTpl 

func (m *MetaInfo) CreateKeyTpl() *KeyTpl

func (*MetaInfo) Deps added in v0.1.1 

func (m *MetaInfo) Deps() []Name

func (*MetaInfo) ExtractPkValue 

func (m *MetaInfo) ExtractPkValue(entity interface{}) (interface{}, error)

func (*MetaInfo) FindRelativeMetaRecursive 

func (m *MetaInfo) FindRelativeMetaRecursive(entityName Name) (*MetaInfo, bool)

func (*MetaInfo) FullColumnAlias 

func (m *MetaInfo) FullColumnAlias(colName string) string

func (*MetaInfo) ManyToManyRelations 

func (m *MetaInfo) ManyToManyRelations() []*ManyToMany

func (*MetaInfo) OneToManyRelations 

func (m *MetaInfo) OneToManyRelations() []*OneToMany

func (*MetaInfo) OneToOneRelations 

func (m *MetaInfo) OneToOneRelations() []*OneToOne

type MetaRegistry 

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

func NewMetaRegistry 

func NewMetaRegistry() *MetaRegistry

func (*MetaRegistry) Add 

func (r *MetaRegistry) Add(entities ...interface{}) error

func (*MetaRegistry) ForEach 

func (r *MetaRegistry) ForEach(f func(meta *MetaInfo) error) error

func (*MetaRegistry) GetMeta 

func (r *MetaRegistry) GetMeta(entity interface{}) (MetaInfo, error)

func (*MetaRegistry) GetMetaByName 

func (r *MetaRegistry) GetMetaByName(entityName Name) (MetaInfo, error)

type MetaToken 

type MetaToken struct {
	Tools     InternalTools
	Tpl       interface{}
	TableName string
	Indexes   []Index
}

type Name 

type Name string

func NameFromEntity 

func NameFromEntity(e interface{}) Name

func (Name) Combine added in v0.1.4 

func (n Name) Combine(entity Name) Name

func (Name) Equal 

func (n Name) Equal(name Name) bool

func (Name) IsShort added in v0.1.1 

func (n Name) IsShort() bool

func (Name) Short 

func (n Name) Short() string

type OneToMany 

type OneToMany struct {
	JoinColumn      string
	ReferenceColumn string
	// contains filtered or unexported fields
}

func (*OneToMany) DeleteStrategy 

func (b *OneToMany) DeleteStrategy() DeleteStrategy

func (*OneToMany) ExtractCollection 

func (o *OneToMany) ExtractCollection(ownerBox *Box) (*Collection, error)

func (*OneToMany) Field 

func (b *OneToMany) Field() *FieldInfo

func (*OneToMany) RelatedWith 

func (b *OneToMany) RelatedWith() Name

func (*OneToMany) Type 

func (b *OneToMany) Type() RelationType

type OneToOne 

type OneToOne struct {
	JoinColumn      string
	ReferenceColumn string
	// contains filtered or unexported fields
}

func (*OneToOne) DeleteStrategy 

func (b *OneToOne) DeleteStrategy() DeleteStrategy

func (*OneToOne) Extract 

func (o *OneToOne) Extract(ownerBox *Box) (*Cell, error)

func (*OneToOne) Field 

func (b *OneToOne) Field() *FieldInfo

func (*OneToOne) RelatedWith 

func (b *OneToOne) RelatedWith() Name

func (*OneToOne) Type 

func (b *OneToOne) Type() RelationType

type PkStrategy 

type PkStrategy int
const (
	Auto PkStrategy
	Manual
)

type Relation 

type Relation interface {
	Type() RelationType
	DeleteStrategy() DeleteStrategy
	RelatedWith() Name

	Field() *FieldInfo
	// contains filtered or unexported methods
}

type RelationType 

type RelationType int
const (
	Lazy RelationType
	Eager
	SmartLazy
)

Source Files

View all Source files

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL
go.dev uses cookies from Google to deliver and enhance the quality of its services and to analyze traffic. Learn more.