37 lines
742 B
Go
37 lines
742 B
Go
package mixin
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import (
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"entgo.io/ent"
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"entgo.io/ent/schema/field"
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"entgo.io/ent/schema/index"
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"entgo.io/ent/schema/mixin"
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"github.com/google/uuid"
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)
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// UUIDMixin 添加 UUID 字段用于跨设备同步
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// 使用 UUIDv7，具有时间有序性，索引性能更好
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type UUIDMixin struct {
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mixin.Schema
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}
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// Fields of the UUIDMixin.
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func (UUIDMixin) Fields() []ent.Field {
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return []ent.Field{
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field.String("uuid").
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DefaultFunc(func() string {
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return uuid.Must(uuid.NewV7()).String()
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}).
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Unique().
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Immutable().
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StructTag(`json:"uuid"`).
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Comment("UUID for cross-device sync (UUIDv7)"),
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}
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}
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// Indexes of the UUIDMixin.
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func (UUIDMixin) Indexes() []ent.Index {
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return []ent.Index{
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index.Fields("uuid"),
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}
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}
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