93 lines
2.4 KiB
Go
93 lines
2.4 KiB
Go
package entity
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import (
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"fmt"
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"sync"
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"time"
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)
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var photoDetailsMutex = sync.Mutex{}
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// Details stores additional metadata fields for each photo to improve search performance.
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type Details struct {
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PhotoID uint `gorm:"primary_key;auto_increment:false" yaml:"-"`
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Keywords string `gorm:"type:TEXT;" json:"Keywords" yaml:"Keywords"`
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Notes string `gorm:"type:TEXT;" json:"Notes" yaml:"Notes,omitempty"`
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Subject string `gorm:"type:VARCHAR(255);" json:"Subject" yaml:"Subject,omitempty"`
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Artist string `gorm:"type:VARCHAR(255);" json:"Artist" yaml:"Artist,omitempty"`
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Copyright string `gorm:"type:VARCHAR(255);" json:"Copyright" yaml:"Copyright,omitempty"`
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License string `gorm:"type:VARCHAR(255);" json:"License" yaml:"License,omitempty"`
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CreatedAt time.Time `yaml:"-"`
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UpdatedAt time.Time `yaml:"-"`
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}
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// NewDetails creates new photo details.
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func NewDetails(photo Photo) Details {
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return Details{PhotoID: photo.ID}
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}
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// Create inserts a new row to the database.
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func (m *Details) Create() error {
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photoDetailsMutex.Lock()
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defer photoDetailsMutex.Unlock()
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if m.PhotoID == 0 {
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return fmt.Errorf("details: photo id must not be empty (create)")
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}
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return UnscopedDb().Create(m).Error
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}
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// Save updates existing photo details or inserts a new row.
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func (m *Details) Save() error {
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if m.PhotoID == 0 {
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return fmt.Errorf("details: photo id must not be empty (save)")
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}
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return UnscopedDb().Save(m).Error
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}
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// FirstOrCreateDetails returns the existing row, inserts a new row or nil in case of errors.
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func FirstOrCreateDetails(m *Details) *Details {
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result := Details{}
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if err := m.Create(); err == nil {
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return m
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} else if err := Db().Where("photo_id = ?", m.PhotoID).First(&result).Error; err == nil {
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if m.CreatedAt.IsZero() {
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m.CreatedAt = Timestamp()
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}
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return &result
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} else {
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log.Errorf("details: %s (find or create %d)", err, m.PhotoID)
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}
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return nil
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}
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// NoKeywords checks if the photo has no Keywords
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func (m *Details) NoKeywords() bool {
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return m.Keywords == ""
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}
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// NoSubject checks if the photo has no Subject
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func (m *Details) NoSubject() bool {
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return m.Subject == ""
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}
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// NoNotes checks if the photo has no Notes
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func (m *Details) NoNotes() bool {
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return m.Notes == ""
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}
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// NoArtist checks if the photo has no Artist
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func (m *Details) NoArtist() bool {
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return m.Artist == ""
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}
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// NoCopyright checks if the photo has no Copyright
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func (m *Details) NoCopyright() bool {
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return m.Copyright == ""
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}
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