76 lines
2 KiB
Go
76 lines
2 KiB
Go
package entity
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import (
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"strings"
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"time"
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"github.com/gosimple/slug"
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)
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// Lens represents camera lens (as extracted from UpdateExif metadata)
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type Lens struct {
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ID uint `gorm:"primary_key" json:"ID" yaml:"ID"`
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LensSlug string `gorm:"type:varbinary(255);unique_index;" json:"Slug" yaml:"Slug,omitempty"`
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LensModel string `json:"Model" yaml:"Model"`
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LensMake string `json:"Make" yaml:"Make"`
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LensType string `json:"Type" yaml:"Type,omitempty"`
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LensDescription string `gorm:"type:text;" json:"Description,omitempty" yaml:"Description,omitempty"`
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LensNotes string `gorm:"type:text;" json:"Notes,omitempty" yaml:"Notes,omitempty"`
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CreatedAt time.Time `json:"-" yaml:"-"`
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UpdatedAt time.Time `json:"-" yaml:"-"`
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DeletedAt *time.Time `sql:"index" json:"-" yaml:"-"`
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}
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var UnknownLens = Lens{
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LensModel: "Unknown",
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LensMake: "",
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LensSlug: "zz",
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}
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// CreateUnknownLens initializes the database with an unknown lens if not exists
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func CreateUnknownLens() {
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FirstOrCreateLens(&UnknownLens)
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}
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// TableName returns Lens table identifier "lens"
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func (Lens) TableName() string {
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return "lenses"
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}
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// NewLens creates a new lens in database
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func NewLens(modelName string, makeName string) *Lens {
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modelName = strings.TrimSpace(modelName)
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makeName = strings.TrimSpace(makeName)
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lensSlug := slug.MakeLang(modelName, "en")
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if modelName == "" {
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return &UnknownLens
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}
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result := &Lens{
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LensModel: modelName,
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LensMake: makeName,
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LensSlug: lensSlug,
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}
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return result
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}
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// Create inserts a new row to the database.
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func (m *Lens) Create() error {
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return Db().Create(m).Error
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}
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// FirstOrCreateLens returns the existing row, inserts a new row or nil in case of errors.
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func FirstOrCreateLens(m *Lens) *Lens {
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result := Lens{}
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if err := Db().Where("lens_slug = ?", m.LensSlug).First(&result).Error; err == nil {
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return &result
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} else if err := m.Create(); err != nil {
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log.Errorf("lens: %s", err)
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return nil
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}
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return m
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}
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