gotosocial/internal/db/bundb/rule.go
kim 63fc9b6c3e
[chore] renames the GTS caches to DB caches (#3127)
* renames the `GTS` caches to `DB` caches, as it better references what they are

* change remaining Caches.GTS uses to Caches.DB
2024-07-24 10:41:43 +02:00

149 lines
3.7 KiB
Go

// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package bundb
import (
"context"
"errors"
"time"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/superseriousbusiness/gotosocial/internal/state"
"github.com/superseriousbusiness/gotosocial/internal/util"
"github.com/uptrace/bun"
)
type ruleDB struct {
db *bun.DB
state *state.State
}
func (r *ruleDB) GetRuleByID(ctx context.Context, id string) (*gtsmodel.Rule, error) {
var rule gtsmodel.Rule
q := r.db.
NewSelect().
Model(&rule).
Where("? = ?", bun.Ident("rule.id"), id)
if err := q.Scan(ctx); err != nil {
return nil, err
}
return &rule, nil
}
func (r *ruleDB) GetRulesByIDs(ctx context.Context, ids []string) ([]*gtsmodel.Rule, error) {
rules := make([]*gtsmodel.Rule, 0, len(ids))
for _, id := range ids {
// Attempt to fetch status from DB.
rule, err := r.GetRuleByID(ctx, id)
if err != nil {
log.Errorf(ctx, "error getting rule %q: %v", id, err)
continue
}
// Append status to return slice.
rules = append(rules, rule)
}
return rules, nil
}
func (r *ruleDB) GetActiveRules(ctx context.Context) ([]gtsmodel.Rule, error) {
rules := make([]gtsmodel.Rule, 0)
q := r.db.
NewSelect().
Model(&rules).
// Ignore deleted (ie., inactive) rules.
Where("? = ?", bun.Ident("rule.deleted"), false).
Order("rule.order ASC")
if err := q.Scan(ctx); err != nil {
return nil, err
}
return rules, nil
}
func (r *ruleDB) PutRule(ctx context.Context, rule *gtsmodel.Rule) error {
var lastRuleOrder uint
// Select highest existing rule order.
err := r.db.
NewSelect().
TableExpr("? AS ?", bun.Ident("rules"), bun.Ident("rule")).
Column("rule.order").
Order("rule.order DESC").
Limit(1).
Scan(ctx, &lastRuleOrder)
switch {
case errors.Is(err, db.ErrNoEntries):
// No rules set yet, index from 0.
rule.Order = util.Ptr(uint(0))
case err != nil:
// Real db error.
return err
default:
// No error means previous rule(s)
// existed. New rule order should
// be 1 higher than previous rule.
rule.Order = func() *uint {
o := lastRuleOrder + 1
return &o
}()
}
if _, err := r.db.
NewInsert().
Model(rule).
Exec(ctx); err != nil {
return err
}
// invalidate cached local instance response, so it gets updated with the new rules
r.state.Caches.DB.Instance.Invalidate("Domain", config.GetHost())
return nil
}
func (r *ruleDB) UpdateRule(ctx context.Context, rule *gtsmodel.Rule) (*gtsmodel.Rule, error) {
// Update the rule's last-updated
rule.UpdatedAt = time.Now()
if _, err := r.db.
NewUpdate().
Model(rule).
WherePK().
Exec(ctx); err != nil {
return nil, err
}
// invalidate cached local instance response, so it gets updated with the new rules
r.state.Caches.DB.Instance.Invalidate("Domain", config.GetHost())
return rule, nil
}