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soft_delete.go
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soft_delete.go
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// Copyright © 2022 The Things Network Foundation, The Things Industries B.V.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package store
import (
"context"
"time"
)
type deletedOptionsKeyType struct{}
var deletedOptionsKey deletedOptionsKeyType
// DeletedOptions stores the options for selecting deleted entities.
type DeletedOptions struct {
IncludeDeleted bool
OnlyDeleted bool
DeletedBefore *time.Time
DeletedAfter *time.Time
}
// WithSoftDeleted returns a context that tells the store to include (only) deleted entities.
func WithSoftDeleted(ctx context.Context, onlyDeleted bool) context.Context {
return context.WithValue(ctx, deletedOptionsKey, &DeletedOptions{
IncludeDeleted: true,
OnlyDeleted: onlyDeleted,
})
}
// WithSoftDeletedBetween returns a context that tells the store to include deleted entities
// between (exclusive) the given times.
func WithSoftDeletedBetween(ctx context.Context, deletedAfter, deletedBefore *time.Time) context.Context {
return context.WithValue(ctx, deletedOptionsKey, &DeletedOptions{
IncludeDeleted: true,
OnlyDeleted: deletedBefore != nil || deletedAfter != nil,
DeletedBefore: deletedBefore,
DeletedAfter: deletedAfter,
})
}
// SoftDeletedFromContext returns the DeletedOptions from the context if present.
func SoftDeletedFromContext(ctx context.Context) *DeletedOptions {
if opts, ok := ctx.Value(deletedOptionsKey).(*DeletedOptions); ok {
return opts
}
return nil
}