56 lines
1.6 KiB
Go
56 lines
1.6 KiB
Go
package migrate
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import (
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"strings"
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"time"
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"github.com/jinzhu/gorm"
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)
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// Migration represents a database schema migration.
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type Migration struct {
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ID string `gorm:"size:16;primary_key;auto_increment:false;" json:"ID" yaml:"ID"`
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Dialect string `gorm:"size:16;" json:"Dialect" yaml:"Dialect,omitempty"`
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Error string `gorm:"size:255;" json:"Error" yaml:"Error,omitempty"`
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Source string `gorm:"size:16;" json:"Source" yaml:"Source,omitempty"`
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Statements []string `gorm:"-" json:"Statements" yaml:"Statements,omitempty"`
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StartedAt time.Time `json:"StartedAt" yaml:"StartedAt,omitempty"`
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FinishedAt *time.Time `json:"FinishedAt" yaml:"FinishedAt,omitempty"`
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}
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// TableName returns the entity database table name.
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func (Migration) TableName() string {
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return "migrations"
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}
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// Fail marks the migration as failed by adding an error message.
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func (m *Migration) Fail(err error, db *gorm.DB) {
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if err == nil {
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return
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}
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m.Error = err.Error()
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db.Model(m).Updates(Values{"Error": m.Error})
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}
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// Finish updates the FinishedAt timestamp when the migration was successful.
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func (m *Migration) Finish(db *gorm.DB) error {
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return db.Model(m).Updates(Values{"FinishedAt": time.Now().UTC()}).Error
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}
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// Execute runs the migration.
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func (m *Migration) Execute(db *gorm.DB) error {
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for _, s := range m.Statements {
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if err := db.Exec(s).Error; err != nil {
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if strings.HasPrefix(s, "DROP ") && strings.Contains(err.Error(), "DROP") {
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log.Tracef("migrate: %s (drop statement)", err)
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} else {
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return err
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}
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}
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}
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return nil
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}
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