91 lines
1.9 KiB
Go
91 lines
1.9 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 db
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import (
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"context"
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"github.com/abcum/surreal/cnf"
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"github.com/abcum/surreal/util/data"
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)
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// Event checks if any triggers are specified for this
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// table, and executes them in name order.
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func (d *document) event(ctx context.Context, met method) (err error) {
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// If this document has not changed
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// then there is no need to perform
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// any registered events.
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if ok := d.changed(); !ok {
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return
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}
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// Get the event values specified
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// for this table, loop through
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// them, and compute the events.
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evs, err := d.getEV()
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if err != nil {
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return err
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}
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if len(evs) > 0 {
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kind := ""
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switch met {
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case _CREATE:
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kind = "CREATE"
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case _UPDATE:
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kind = "UPDATE"
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case _DELETE:
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kind = "DELETE"
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}
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vars := data.New()
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vars.Set(d.id, varKeyThis)
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vars.Set(kind, varKeyMethod)
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vars.Set(d.current.Data(), varKeyAfter)
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vars.Set(d.initial.Data(), varKeyBefore)
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ctx = context.WithValue(ctx, ctxKeySpec, vars)
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ctx = context.WithValue(ctx, ctxKeyKind, cnf.AuthDB)
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for _, ev := range evs {
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val, err := d.i.e.fetch(ctx, ev.When, d.current)
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if err != nil {
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return err
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}
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switch v := val.(type) {
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case bool:
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switch v {
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case true:
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_, err = d.i.e.fetch(ctx, ev.Then, d.current)
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if err != nil {
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return err
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}
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}
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}
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}
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}
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return
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}
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