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upload first, then store the key as virtual fk

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This commit is contained in:
Giau. Tran Minh
2026-05-05 15:27:47 +00:00
parent 39bcbbc359
commit 6802bf68f8
30 changed files with 539 additions and 685 deletions
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54
schema/field/field.go
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@@ -5,6 +5,7 @@
package field
import (
"context"
"database/sql"
"database/sql/driver"
"encoding"
@@ -1485,6 +1486,18 @@ func (b *blobBuilder) Deprecated(reason ...string) *blobBuilder {
return b
}
// Key sets the function used to generate the blob storage key.
// The function is called at create/update time to produce a unique key
// for storing the blob data. If not set, a random key is generated.
//
// field.Blob("content").Key(func(ctx context.Context) (string, error) {
// return uuid.NewString(), nil
// })
func (b *blobBuilder) Key(fn func(context.Context) (string, error)) *blobBuilder {
b.desc.BlobKey = fn
return b
}
// Descriptor implements the ent.Field interface by returning its descriptor.
func (b *blobBuilder) Descriptor() *Descriptor {
return b.desc
@@ -1492,26 +1505,27 @@ func (b *blobBuilder) Descriptor() *Descriptor {
// A Descriptor for field configuration.
type Descriptor struct {
Tag string // struct tag.
Size int // varchar size.
Name string // field name.
Info *TypeInfo // field type info.
ValueScanner any // custom field codec.
Unique bool // unique index of field.
Nillable bool // nillable struct field.
Optional bool // nullable field in database.
Immutable bool // create only field.
Default any // default value on create.
UpdateDefault any // default value on update.
Validators []any // validator functions.
StorageKey string // sql column or gremlin property.
Enums []struct{ N, V string } // enum values.
Sensitive bool // sensitive info string field.
SchemaType map[string]string // override the schema type.
Annotations []schema.Annotation // field annotations.
Comment string // field comment.
Deprecated bool // mark the field as deprecated.
DeprecatedReason string // deprecation reason.
Tag string // struct tag.
Size int // varchar size.
Name string // field name.
Info *TypeInfo // field type info.
ValueScanner any // custom field codec.
Unique bool // unique index of field.
Nillable bool // nillable struct field.
Optional bool // nullable field in database.
Immutable bool // create only field.
Default any // default value on create.
UpdateDefault any // default value on update.
Validators []any // validator functions.
StorageKey string // sql column or gremlin property.
Enums []struct{ N, V string } // enum values.
Sensitive bool // sensitive info string field.
SchemaType map[string]string // override the schema type.
Annotations []schema.Annotation // field annotations.
Comment string // field comment.
Deprecated bool // mark the field as deprecated.
DeprecatedReason string // deprecation reason.
BlobKey func(context.Context) (string, error) // blob key generation function: func(context.Context) (string, error).
Err error
}