5e50b166ef
- Move remaining beach packages and embedded admin assets\n- Rewrite framework, example, build, and gate paths
29 lines
999 B
Go
29 lines
999 B
Go
package lagoon
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import (
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"fmt"
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"gorm.io/gorm"
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)
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// RegisterJoinTable wraps db.SetupJoinTable so a nil db returns an error
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// instead of panicking.
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//
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// Pivot-write contract: pivot tables with business columns (sort_order,
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// role, granted_at, granted_by) are never written through
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// db.Model(&owner).Association(field).Append/Replace(...). GORM's
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// Association Mode has no documented path to set those columns. Writes go
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// through an explicit delete-then-bulk-insert (or ON CONFLICT DO UPDATE)
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// against the join table directly, in the same transaction as the parent
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// save. Reads use Preload(field) plus .Order(...) on the pivot's own
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// columns once RegisterJoinTable has run.
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func RegisterJoinTable(db *gorm.DB, owner any, field string, joinModel any) error {
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if db == nil {
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return fmt.Errorf("lagoon: register join table: db is nil")
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}
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if err := db.SetupJoinTable(owner, field, joinModel); err != nil {
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return fmt.Errorf("lagoon: register join table: %w", err)
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}
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return nil
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}
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