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feat: add ability to regenerate summaries

fix: database cascade settings
chore: debug log mode for gorm queries is back
This commit is contained in:
Ferdinand Mütsch
2020-11-06 17:09:41 +01:00
parent e6a04cc76d
commit e269b37b0e
14 changed files with 194 additions and 36 deletions

View File

@ -30,6 +30,71 @@ func init() {
},
name: "rename language mappings table",
},
{
f: func(db *gorm.DB, cfg *config.Config) error {
// drop all already existing foreign key constraints
// afterwards let them be re-created by auto migrate with the newly introduced cascade settings,
migrator := db.Migrator()
const lookupKey = "20201106-migration_cascade_constraints"
if cfg.Db.Dialect == "sqlite3" {
// https://stackoverflow.com/a/1884893/3112139
// unfortunately, we can't migrate existing sqlite databases to the newly introduced cascade settings
// things like deleting all summaries won't work in those cases unless an entirely new db is created
log.Println("not attempting to drop and regenerate constraints on sqlite")
return nil
}
if !migrator.HasTable(&models.KeyStringValue{}) {
log.Println("key-value table not yet existing")
return nil
}
condition := "key = ?"
if cfg.Db.Dialect == "mysql" {
condition = "`key` = ?"
}
lookupResult := db.Where(condition, lookupKey).First(&models.KeyStringValue{})
if lookupResult.Error == nil && lookupResult.RowsAffected > 0 {
log.Println("no need to migrate cascade constraints")
return nil
}
// SELECT * FROM INFORMATION_SCHEMA.table_constraints;
constraints := map[string]interface{}{
"fk_summaries_editors": &models.SummaryItem{},
"fk_summaries_languages": &models.SummaryItem{},
"fk_summaries_machines": &models.SummaryItem{},
"fk_summaries_operating_systems": &models.SummaryItem{},
"fk_summaries_projects": &models.SummaryItem{},
"fk_summary_items_summary": &models.SummaryItem{},
"fk_summaries_user": &models.Summary{},
"fk_language_mappings_user": &models.LanguageMapping{},
"fk_heartbeats_user": &models.Heartbeat{},
"fk_aliases_user": &models.Alias{},
}
for name, table := range constraints {
if migrator.HasConstraint(table, name) {
log.Printf("dropping constraint '%s'", name)
if err := migrator.DropConstraint(table, name); err != nil {
return err
}
}
}
if err := db.Create(&models.KeyStringValue{
Key: lookupKey,
Value: "done",
}).Error; err != nil {
return err
}
return nil
},
name: "add cascade constraints",
},
}
}