/
entity_id_repository.go
94 lines (76 loc) · 2.79 KB
/
entity_id_repository.go
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package gorm
import (
"fmt"
"github.com/yaruz/app/pkg/yarus_platform/config"
"github.com/pkg/errors"
"github.com/yaruz/app/pkg/yarus_platform/yaruserror"
"gorm.io/gorm"
)
type EntityIDRepository struct {
repository
entityTypesByClusterSysnames map[string][]string
clusterSysnamesByEntityTypes map[string]string
}
func NewEntityIDRepository(repository *repository, entityTypesByClusterSysnames map[string][]string) *EntityIDRepository {
clusterSysnamesByEntityTypes := make(map[string]string)
for sysname, entityTypes := range entityTypesByClusterSysnames {
for _, entityType := range entityTypes {
clusterSysnamesByEntityTypes[entityType] = sysname
}
}
entityTypesByClusterSysnames[config.DBClusterDefaultSysname] = nil
return &EntityIDRepository{
repository: *repository,
entityTypesByClusterSysnames: entityTypesByClusterSysnames,
clusterSysnamesByEntityTypes: clusterSysnamesByEntityTypes,
}
}
func (r *EntityIDRepository) AutoMigrate() error {
for s := range r.entityTypesByClusterSysnames {
query := r.createQuery(r.getSeqNameByClusterSysname(s))
if err := r.db.DB().Exec(query).Error; err != nil {
return err
}
}
return nil
}
func (r *EntityIDRepository) isSeparatedEntityType(entityTypeSysname string) (string, bool) {
sysname, ok := r.clusterSysnamesByEntityTypes[entityTypeSysname]
return sysname, ok
}
func (r *EntityIDRepository) getSeqNameByClusterSysname(clusterSysname string) string {
return r.buildSeqName(clusterSysname)
}
func (r *EntityIDRepository) getSeqNameByEntityTypeSysname(entityTypeSysname string) string {
if clusterSysname, ok := r.isSeparatedEntityType(entityTypeSysname); ok {
return r.buildSeqName(clusterSysname)
}
return r.buildSeqName(config.DBClusterDefaultSysname)
}
func (r *EntityIDRepository) buildSeqName(clusterSysname string) string {
return "id4type_" + clusterSysname
}
func (r *EntityIDRepository) NextVal(entityTypeSysname string) (id uint, err error) {
return r.getVal(r.nextvalQuery(r.getSeqNameByEntityTypeSysname(entityTypeSysname)))
}
func (r *EntityIDRepository) LastVal(entityTypeSysname string) (id uint, err error) {
return r.getVal(r.lastvalQuery(r.getSeqNameByEntityTypeSysname(entityTypeSysname)))
}
func (r *EntityIDRepository) getVal(sql string) (id uint, err error) {
if err = r.db.DB().Raw(sql).Scan(&id).Error; err != nil {
if errors.Is(err, gorm.ErrRecordNotFound) {
return 0, yaruserror.ErrNotFound
}
return 0, err
}
return id, nil
}
func (r *EntityIDRepository) createQuery(name string) string {
return fmt.Sprintf("CREATE SEQUENCE IF NOT EXISTS %s", name)
}
func (r *EntityIDRepository) nextvalQuery(name string) string {
return fmt.Sprintf("SELECT nextval('%s')", name)
}
func (r *EntityIDRepository) lastvalQuery(name string) string {
return fmt.Sprintf("SELECT lastval('%s')", name)
}