67 lines
1.5 KiB
Go
67 lines
1.5 KiB
Go
// Copyright © 2016 Abcum Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package indx
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import (
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"reflect"
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"github.com/abcum/surreal/sql"
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"github.com/abcum/surreal/util/data"
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)
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func Diff(old, now [][]interface{}) (_, _ [][]interface{}) {
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for i := len(old) - 1; i >= 0; i-- {
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if reflect.DeepEqual(old[i], now[i]) {
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old = append(old[:i], old[i+1:]...)
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now = append(now[:i], now[i+1:]...)
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}
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}
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return old, now
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}
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func Build(cols sql.Idents, item *data.Doc) (out [][]interface{}) {
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if len(cols) == 0 {
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return [][]interface{}{nil}
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}
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col, cols := cols[0], cols[1:]
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sub := Build(cols, item)
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if arr, ok := item.Get(col.ID).Data().([]interface{}); ok {
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for _, s := range sub {
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for _, a := range arr {
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idx := []interface{}{}
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idx = append(idx, a)
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idx = append(idx, s...)
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out = append(out, idx)
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}
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}
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} else {
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for _, s := range sub {
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idx := []interface{}{}
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idx = append(idx, item.Get(col.ID).Data())
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idx = append(idx, s...)
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out = append(out, idx)
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}
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}
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return
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}
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