103 lines
2.5 KiB
Go
103 lines
2.5 KiB
Go
package entity
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import (
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"crypto/sha1"
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"encoding/base32"
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"time"
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)
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type Faces []Face
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// Face represents the face of a Person.
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type Face struct {
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ID string `gorm:"type:VARBINARY(42);primary_key;auto_increment:false;" json:"ID" yaml:"ID"`
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PersonUID string `gorm:"type:VARBINARY(42);index;" json:"PersonUID" yaml:"PersonUID,omitempty"`
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Embedding string `gorm:"type:LONGTEXT;" json:"Embedding" yaml:"Embedding,omitempty"`
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CreatedAt time.Time `json:"CreatedAt" yaml:"CreatedAt,omitempty"`
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UpdatedAt time.Time `json:"UpdatedAt" yaml:"UpdatedAt,omitempty"`
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DeletedAt *time.Time `sql:"index" json:"DeletedAt,omitempty" yaml:"-"`
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}
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// UnknownFace can be used as a placeholder for unknown faces.
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var UnknownFace = Face{
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ID: "zz",
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PersonUID: UnknownPerson.PersonUID,
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Embedding: "",
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}
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// CreateUnknownFace initializes the database with a placeholder for unknown faces.
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func CreateUnknownFace() {
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_ = UnknownFace.Create()
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}
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// TableName returns the entity database table name.
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func (Face) TableName() string {
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return "faces_dev2"
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}
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// NewFace returns a new face.
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func NewFace(personUID, embedding string) *Face {
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timeStamp := Timestamp()
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s := sha1.Sum([]byte(embedding))
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result := &Face{
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ID: base32.StdEncoding.EncodeToString(s[:]),
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PersonUID: personUID,
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Embedding: embedding,
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CreatedAt: timeStamp,
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UpdatedAt: timeStamp,
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}
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return result
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}
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// UnmarshalEmbedding parses the face embedding JSON string.
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func (m *Face) UnmarshalEmbedding() (result Embedding) {
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return UnmarshalEmbedding(m.Embedding)
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}
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// Save updates the existing or inserts a new face.
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func (m *Face) Save() error {
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peopleMutex.Lock()
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defer peopleMutex.Unlock()
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return Save(m, "ID")
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}
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// Create inserts the face to the database.
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func (m *Face) Create() error {
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peopleMutex.Lock()
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defer peopleMutex.Unlock()
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return Db().Create(m).Error
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}
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// Delete removes the face from the database.
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func (m *Face) Delete() error {
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return Db().Delete(m).Error
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}
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// Deleted returns true if the face is deleted.
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func (m *Face) Deleted() bool {
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return m.DeletedAt != nil
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}
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// Restore restores the face in the database.
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func (m *Face) Restore() error {
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if m.Deleted() {
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return UnscopedDb().Model(m).Update("DeletedAt", nil).Error
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}
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return nil
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}
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// Update a face property in the database.
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func (m *Face) Update(attr string, value interface{}) error {
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return UnscopedDb().Model(m).Update(attr, value).Error
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}
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// Updates face properties in the database.
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func (m *Face) Updates(values interface{}) error {
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return UnscopedDb().Model(m).Updates(values).Error
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}
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