mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-05-18 16:28:07 +00:00
adf345f1ec
* update go-structr library -> v0.6.0, add necessary wrapping types + code changes to support these changes
* update readme with go-structr package changes
* improved wrapping of the SliceCache type
* add code comments for the cache wrapper types
* remove test.out 😇
---------
Co-authored-by: tobi <31960611+tsmethurst@users.noreply.github.com>
134 lines
3.4 KiB
Go
134 lines
3.4 KiB
Go
// GoToSocial
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// Copyright (C) GoToSocial Authors admin@gotosocial.org
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// SPDX-License-Identifier: AGPL-3.0-or-later
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package bundb
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import (
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"context"
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"strings"
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"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
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"github.com/superseriousbusiness/gotosocial/internal/state"
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"github.com/superseriousbusiness/gotosocial/internal/util"
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"github.com/uptrace/bun"
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)
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type tagDB struct {
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db *bun.DB
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state *state.State
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}
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func (t *tagDB) GetTag(ctx context.Context, id string) (*gtsmodel.Tag, error) {
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return t.state.Caches.GTS.Tag.LoadOne("ID", func() (*gtsmodel.Tag, error) {
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var tag gtsmodel.Tag
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q := t.db.
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NewSelect().
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Model(&tag).
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Where("? = ?", bun.Ident("tag.id"), id)
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if err := q.Scan(ctx); err != nil {
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return nil, err
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}
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return &tag, nil
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}, id)
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}
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func (t *tagDB) GetTagByName(ctx context.Context, name string) (*gtsmodel.Tag, error) {
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// Normalize 'name' string.
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name = strings.TrimSpace(name)
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name = strings.ToLower(name)
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return t.state.Caches.GTS.Tag.LoadOne("Name", func() (*gtsmodel.Tag, error) {
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var tag gtsmodel.Tag
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q := t.db.
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NewSelect().
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Model(&tag).
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Where("? = ?", bun.Ident("tag.name"), name)
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if err := q.Scan(ctx); err != nil {
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return nil, err
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}
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return &tag, nil
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}, name)
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}
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func (t *tagDB) GetTags(ctx context.Context, ids []string) ([]*gtsmodel.Tag, error) {
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// Load all tag IDs via cache loader callbacks.
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tags, err := t.state.Caches.GTS.Tag.LoadIDs("ID",
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ids,
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func(uncached []string) ([]*gtsmodel.Tag, error) {
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// Preallocate expected length of uncached tags.
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tags := make([]*gtsmodel.Tag, 0, len(uncached))
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// Perform database query scanning
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// the remaining (uncached) IDs.
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if err := t.db.NewSelect().
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Model(&tags).
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Where("? IN (?)", bun.Ident("id"), bun.In(uncached)).
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Scan(ctx); err != nil {
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return nil, err
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}
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return tags, nil
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},
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)
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if err != nil {
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return nil, err
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}
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// Reorder the tags by their
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// IDs to ensure in correct order.
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getID := func(t *gtsmodel.Tag) string { return t.ID }
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util.OrderBy(tags, ids, getID)
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return tags, nil
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}
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func (t *tagDB) PutTag(ctx context.Context, tag *gtsmodel.Tag) error {
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// Normalize 'name' string before it enters
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// the db, without changing tag we were given.
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//
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// First copy tag to new pointer.
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t2 := new(gtsmodel.Tag)
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*t2 = *tag
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// Normalize name on new pointer.
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t2.Name = strings.TrimSpace(t2.Name)
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t2.Name = strings.ToLower(t2.Name)
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// Insert the copy.
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if err := t.state.Caches.GTS.Tag.Store(t2, func() error {
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_, err := t.db.NewInsert().Model(t2).Exec(ctx)
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return err
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}); err != nil {
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return err // err already processed
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}
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// Update original tag with
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// field values populated by db.
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tag.CreatedAt = t2.CreatedAt
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tag.UpdatedAt = t2.UpdatedAt
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tag.Useable = t2.Useable
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tag.Listable = t2.Listable
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return nil
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}
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