108 lines
2.9 KiB
Go
108 lines
2.9 KiB
Go
package db
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import (
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"time"
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gormigrate "github.com/go-gormigrate/gormigrate/v2"
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"github.com/google/uuid"
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"gorm.io/gorm"
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)
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// Gormigrate returns a Gormigrate migrator for the database.
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func Gormigrate(db *gorm.DB) *gormigrate.Gormigrate {
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return gormigrate.New(db, gormigrate.DefaultOptions, []*gormigrate.Migration{
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{
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ID: "202010251337",
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Migrate: func(tx *gorm.DB) error {
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type FileUpload struct {
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ID uint `gorm:"primaryKey"`
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State FileUploadState `gorm:"index"`
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PubID uuid.UUID `gorm:"uniqueIndex"`
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FileName string
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ContentType string
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Checksum uint32
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CreatedAt time.Time
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UpdatedAt time.Time
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DeletedAt gorm.DeletedAt
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}
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type Paste struct {
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ID uint `gorm:"primaryKey"`
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Type PasteType `gorm:"index"`
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State PasteState `gorm:"index"`
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Content []byte
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Key string `gorm:"uniqueIndex"`
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DeleteToken string
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CreatedAt time.Time
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UpdatedAt time.Time
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DeletedAt gorm.DeletedAt
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}
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return tx.AutoMigrate(&FileUpload{}, &Paste{})
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},
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},
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{
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ID: "202107231722",
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Migrate: func(tx *gorm.DB) error {
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// Update the schema
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type FileUpload struct {
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ID uint `gorm:"primaryKey"`
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State FileUploadState `gorm:"index"`
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PubID uuid.UUID `gorm:"uniqueIndex"`
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PasteID uint
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FileName string
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ContentType string
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Checksum uint32
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CreatedAt time.Time
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UpdatedAt time.Time
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DeletedAt gorm.DeletedAt
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}
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type Paste struct {
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ID uint `gorm:"primaryKey"`
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Type PasteType `gorm:"index"`
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State PasteState `gorm:"index"`
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Content []byte
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URL string
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FileUpload *FileUpload
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Key string `gorm:"uniqueIndex"`
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DeleteToken string
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CreatedAt time.Time
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UpdatedAt time.Time
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DeletedAt gorm.DeletedAt
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}
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err := tx.AutoMigrate(&FileUpload{}, &Paste{})
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if err != nil {
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return err
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}
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// Migrate the data
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pastes := make([]Paste, 0)
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if err := tx.Model(&Paste{}).Find(&pastes).Error; err != nil {
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return err
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}
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for _, p := range pastes {
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switch p.Type {
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case PasteTypeRedirect:
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p.URL = string(p.Content)
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tx.Model(p).Select("Content", "URL").Updates(p)
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case PasteTypeFileUpload:
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var id uuid.UUID
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var fus []FileUpload
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copy(id[:], p.Content)
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if err := db.Unscoped().Limit(1).Where("pub_id = ?", id).Find(&fus).Error; err != nil {
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return err
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}
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p.FileUpload = &fus[0]
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tx.Model(p).Select("Content", "FileUpload").Updates(p)
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default:
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continue
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}
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}
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// Currently there is a bug in GORM, which causes a nil ptr
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// dereference when you try dropping a column in an sqlite3
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// database.
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return nil
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},
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},
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})
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}
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