e57a088688
Previously, LIVE queries as a result of an EVENT query would not be sent to the current connection. Now any LIVE queries resulting from an EVENT query will be delivered to ALL connections, regardless of where it originated.
105 lines
2.2 KiB
Go
105 lines
2.2 KiB
Go
// Copyright © 2016 Abcum Ltd
|
|
//
|
|
// 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 db
|
|
|
|
import (
|
|
"context"
|
|
|
|
"github.com/abcum/surreal/cnf"
|
|
"github.com/abcum/surreal/util/data"
|
|
)
|
|
|
|
// Event checks if any triggers are specified for this
|
|
// table, and executes them in name order.
|
|
func (d *document) event(ctx context.Context, met method) (err error) {
|
|
|
|
if !d.i.e.opts.events {
|
|
return nil
|
|
}
|
|
|
|
// Check if this query has been run
|
|
// in forced mode, because of an
|
|
// index or foreign table update.
|
|
|
|
forced := d.forced(ctx)
|
|
|
|
// If this document has not changed
|
|
// then there is no need to perform
|
|
// any registered events.
|
|
|
|
if !forced && !d.changed {
|
|
return nil
|
|
}
|
|
|
|
// Get the event values specified
|
|
// for this table, loop through
|
|
// them, and compute the events.
|
|
|
|
evs, err := d.i.e.tx.AllEV(ctx, d.key.NS, d.key.DB, d.key.TB)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if len(evs) > 0 {
|
|
|
|
kind := ""
|
|
|
|
switch met {
|
|
case _CREATE:
|
|
kind = "CREATE"
|
|
case _UPDATE:
|
|
kind = "UPDATE"
|
|
case _DELETE:
|
|
kind = "DELETE"
|
|
}
|
|
|
|
var id = d.i.e.id
|
|
d.i.e.id = d.i.e.id + "-bg"
|
|
defer func() { d.i.e.id = id }()
|
|
|
|
vars := data.New()
|
|
vars.Set(d.id, varKeyThis)
|
|
vars.Set(kind, varKeyMethod)
|
|
vars.Set(d.current.Data(), varKeyAfter)
|
|
vars.Set(d.initial.Data(), varKeyBefore)
|
|
ctx = context.WithValue(ctx, ctxKeySpec, vars)
|
|
|
|
ctx = context.WithValue(ctx, ctxKeyKind, cnf.AuthDB)
|
|
|
|
for _, ev := range evs {
|
|
|
|
val, err := d.i.e.fetch(ctx, ev.When, d.current)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
switch v := val.(type) {
|
|
case bool:
|
|
switch v {
|
|
case true:
|
|
_, err = d.i.e.fetch(ctx, ev.Then, d.current)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return
|
|
|
|
}
|