417 lines
12 KiB
Go
417 lines
12 KiB
Go
/*
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GoToSocial
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Copyright (C) 2021-2022 GoToSocial Authors admin@gotosocial.org
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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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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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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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*/
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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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"time"
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"github.com/superseriousbusiness/gotosocial/internal/db"
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"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
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"github.com/superseriousbusiness/gotosocial/internal/log"
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"github.com/superseriousbusiness/gotosocial/internal/state"
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"github.com/uptrace/bun"
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"github.com/uptrace/bun/dialect"
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)
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type emojiDB struct {
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conn *DBConn
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state *state.State
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}
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func (e *emojiDB) newEmojiQ(emoji *gtsmodel.Emoji) *bun.SelectQuery {
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return e.conn.
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NewSelect().
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Model(emoji).
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Relation("Category")
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}
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func (e *emojiDB) newEmojiCategoryQ(emojiCategory *gtsmodel.EmojiCategory) *bun.SelectQuery {
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return e.conn.
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NewSelect().
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Model(emojiCategory)
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}
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func (e *emojiDB) PutEmoji(ctx context.Context, emoji *gtsmodel.Emoji) db.Error {
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return e.state.Caches.GTS.Emoji().Store(emoji, func() error {
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_, err := e.conn.NewInsert().Model(emoji).Exec(ctx)
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return e.conn.ProcessError(err)
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})
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}
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func (e *emojiDB) UpdateEmoji(ctx context.Context, emoji *gtsmodel.Emoji, columns ...string) (*gtsmodel.Emoji, db.Error) {
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// Update the emoji's last-updated
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emoji.UpdatedAt = time.Now()
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if _, err := e.conn.
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NewUpdate().
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Model(emoji).
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Where("? = ?", bun.Ident("emoji.id"), emoji.ID).
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Column(columns...).
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Exec(ctx); err != nil {
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return nil, e.conn.ProcessError(err)
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}
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e.state.Caches.GTS.Emoji().Invalidate("ID", emoji.ID)
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return emoji, nil
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}
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func (e *emojiDB) DeleteEmojiByID(ctx context.Context, id string) db.Error {
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if err := e.conn.RunInTx(ctx, func(tx bun.Tx) error {
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// delete links between this emoji and any statuses that use it
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if _, err := tx.
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NewDelete().
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TableExpr("? AS ?", bun.Ident("status_to_emojis"), bun.Ident("status_to_emoji")).
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Where("? = ?", bun.Ident("status_to_emoji.emoji_id"), id).
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Exec(ctx); err != nil {
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return err
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}
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// delete links between this emoji and any accounts that use it
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if _, err := tx.
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NewDelete().
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TableExpr("? AS ?", bun.Ident("account_to_emojis"), bun.Ident("account_to_emoji")).
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Where("? = ?", bun.Ident("account_to_emoji.emoji_id"), id).
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Exec(ctx); err != nil {
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return err
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}
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if _, err := tx.
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NewDelete().
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TableExpr("? AS ?", bun.Ident("emojis"), bun.Ident("emoji")).
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Where("? = ?", bun.Ident("emoji.id"), id).
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Exec(ctx); err != nil {
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return e.conn.ProcessError(err)
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}
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return nil
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}); err != nil {
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return err
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}
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e.state.Caches.GTS.Emoji().Invalidate("ID", id)
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return nil
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}
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func (e *emojiDB) GetEmojis(ctx context.Context, domain string, includeDisabled bool, includeEnabled bool, shortcode string, maxShortcodeDomain string, minShortcodeDomain string, limit int) ([]*gtsmodel.Emoji, db.Error) {
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emojiIDs := []string{}
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subQuery := e.conn.
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NewSelect().
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ColumnExpr("? AS ?", bun.Ident("emoji.id"), bun.Ident("emoji_ids"))
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// To ensure consistent ordering and make paging possible, we sort not by shortcode
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// but by [shortcode]@[domain]. Because sqlite and postgres have different syntax
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// for concatenation, that means we need to switch here. Depending on which driver
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// is in use, query will look something like this (sqlite):
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//
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// SELECT
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// "emoji"."id" AS "emoji_ids",
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// lower("emoji"."shortcode" || '@' || COALESCE("emoji"."domain", '')) AS "shortcode_domain"
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// FROM
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// "emojis" AS "emoji"
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// ORDER BY
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// "shortcode_domain" ASC
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//
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// Or like this (postgres):
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//
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// SELECT
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// "emoji"."id" AS "emoji_ids",
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// LOWER(CONCAT("emoji"."shortcode", '@', COALESCE("emoji"."domain", ''))) AS "shortcode_domain"
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// FROM
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// "emojis" AS "emoji"
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// ORDER BY
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// "shortcode_domain" ASC
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switch e.conn.Dialect().Name() {
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case dialect.SQLite:
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subQuery = subQuery.ColumnExpr("LOWER(? || ? || COALESCE(?, ?)) AS ?", bun.Ident("emoji.shortcode"), "@", bun.Ident("emoji.domain"), "", bun.Ident("shortcode_domain"))
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case dialect.PG:
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subQuery = subQuery.ColumnExpr("LOWER(CONCAT(?, ?, COALESCE(?, ?))) AS ?", bun.Ident("emoji.shortcode"), "@", bun.Ident("emoji.domain"), "", bun.Ident("shortcode_domain"))
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default:
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panic("db conn was neither pg not sqlite")
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}
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subQuery = subQuery.TableExpr("? AS ?", bun.Ident("emojis"), bun.Ident("emoji"))
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if domain == "" {
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subQuery = subQuery.Where("? IS NULL", bun.Ident("emoji.domain"))
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} else if domain != db.EmojiAllDomains {
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subQuery = subQuery.Where("? = ?", bun.Ident("emoji.domain"), domain)
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}
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switch {
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case includeDisabled && !includeEnabled:
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// show only disabled emojis
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subQuery = subQuery.Where("? = ?", bun.Ident("emoji.disabled"), true)
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case includeEnabled && !includeDisabled:
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// show only enabled emojis
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subQuery = subQuery.Where("? = ?", bun.Ident("emoji.disabled"), false)
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default:
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// show emojis regardless of emoji.disabled value
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}
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if shortcode != "" {
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subQuery = subQuery.Where("LOWER(?) = LOWER(?)", bun.Ident("emoji.shortcode"), shortcode)
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}
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// assume we want to sort ASC (a-z) unless informed otherwise
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order := "ASC"
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if maxShortcodeDomain != "" {
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subQuery = subQuery.Where("? > LOWER(?)", bun.Ident("shortcode_domain"), maxShortcodeDomain)
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}
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if minShortcodeDomain != "" {
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subQuery = subQuery.Where("? < LOWER(?)", bun.Ident("shortcode_domain"), minShortcodeDomain)
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// if we have a minShortcodeDomain we're paging upwards/backwards
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order = "DESC"
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}
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subQuery = subQuery.Order("shortcode_domain " + order)
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if limit > 0 {
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subQuery = subQuery.Limit(limit)
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}
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// Wrap the subQuery in a query, since we don't need to select the shortcode_domain column.
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//
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// The final query will come out looking something like...
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//
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// SELECT
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// "subquery"."emoji_ids"
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// FROM (
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// SELECT
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// "emoji"."id" AS "emoji_ids",
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// LOWER("emoji"."shortcode" || '@' || COALESCE("emoji"."domain", '')) AS "shortcode_domain"
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// FROM
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// "emojis" AS "emoji"
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// ORDER BY
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// "shortcode_domain" ASC
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// ) AS "subquery"
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if err := e.conn.
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NewSelect().
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Column("subquery.emoji_ids").
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TableExpr("(?) AS ?", subQuery, bun.Ident("subquery")).
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Scan(ctx, &emojiIDs); err != nil {
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return nil, e.conn.ProcessError(err)
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}
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if order == "DESC" {
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// Reverse the slice order so the caller still
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// gets emojis in expected a-z alphabetical order.
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//
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// See https://github.com/golang/go/wiki/SliceTricks#reversing
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for i := len(emojiIDs)/2 - 1; i >= 0; i-- {
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opp := len(emojiIDs) - 1 - i
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emojiIDs[i], emojiIDs[opp] = emojiIDs[opp], emojiIDs[i]
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}
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}
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return e.GetEmojisByIDs(ctx, emojiIDs)
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}
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func (e *emojiDB) GetUseableEmojis(ctx context.Context) ([]*gtsmodel.Emoji, db.Error) {
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emojiIDs := []string{}
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q := e.conn.
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NewSelect().
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TableExpr("? AS ?", bun.Ident("emojis"), bun.Ident("emoji")).
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Column("emoji.id").
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Where("? = ?", bun.Ident("emoji.visible_in_picker"), true).
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Where("? = ?", bun.Ident("emoji.disabled"), false).
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Where("? IS NULL", bun.Ident("emoji.domain")).
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Order("emoji.shortcode ASC")
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if err := q.Scan(ctx, &emojiIDs); err != nil {
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return nil, e.conn.ProcessError(err)
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}
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return e.GetEmojisByIDs(ctx, emojiIDs)
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}
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func (e *emojiDB) GetEmojiByID(ctx context.Context, id string) (*gtsmodel.Emoji, db.Error) {
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return e.getEmoji(
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ctx,
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"ID",
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func(emoji *gtsmodel.Emoji) error {
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return e.newEmojiQ(emoji).Where("? = ?", bun.Ident("emoji.id"), id).Scan(ctx)
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},
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id,
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)
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}
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func (e *emojiDB) GetEmojiByURI(ctx context.Context, uri string) (*gtsmodel.Emoji, db.Error) {
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return e.getEmoji(
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ctx,
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"URI",
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func(emoji *gtsmodel.Emoji) error {
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return e.newEmojiQ(emoji).Where("? = ?", bun.Ident("emoji.uri"), uri).Scan(ctx)
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},
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uri,
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)
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}
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func (e *emojiDB) GetEmojiByShortcodeDomain(ctx context.Context, shortcode string, domain string) (*gtsmodel.Emoji, db.Error) {
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return e.getEmoji(
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ctx,
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"Shortcode.Domain",
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func(emoji *gtsmodel.Emoji) error {
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q := e.newEmojiQ(emoji)
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if domain != "" {
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q = q.Where("? = ?", bun.Ident("emoji.shortcode"), shortcode)
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q = q.Where("? = ?", bun.Ident("emoji.domain"), domain)
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} else {
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q = q.Where("? = ?", bun.Ident("emoji.shortcode"), strings.ToLower(shortcode))
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q = q.Where("? IS NULL", bun.Ident("emoji.domain"))
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}
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return q.Scan(ctx)
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},
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shortcode,
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domain,
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)
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}
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func (e *emojiDB) GetEmojiByStaticURL(ctx context.Context, imageStaticURL string) (*gtsmodel.Emoji, db.Error) {
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return e.getEmoji(
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ctx,
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"ImageStaticURL",
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func(emoji *gtsmodel.Emoji) error {
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return e.
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newEmojiQ(emoji).
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Where("? = ?", bun.Ident("emoji.image_static_url"), imageStaticURL).
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Scan(ctx)
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},
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imageStaticURL,
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)
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}
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func (e *emojiDB) PutEmojiCategory(ctx context.Context, emojiCategory *gtsmodel.EmojiCategory) db.Error {
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return e.state.Caches.GTS.EmojiCategory().Store(emojiCategory, func() error {
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_, err := e.conn.NewInsert().Model(emojiCategory).Exec(ctx)
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return e.conn.ProcessError(err)
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})
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}
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func (e *emojiDB) GetEmojiCategories(ctx context.Context) ([]*gtsmodel.EmojiCategory, db.Error) {
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emojiCategoryIDs := []string{}
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q := e.conn.
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NewSelect().
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TableExpr("? AS ?", bun.Ident("emoji_categories"), bun.Ident("emoji_category")).
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Column("emoji_category.id").
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Order("emoji_category.name ASC")
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if err := q.Scan(ctx, &emojiCategoryIDs); err != nil {
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return nil, e.conn.ProcessError(err)
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}
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return e.GetEmojiCategoriesByIDs(ctx, emojiCategoryIDs)
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}
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func (e *emojiDB) GetEmojiCategory(ctx context.Context, id string) (*gtsmodel.EmojiCategory, db.Error) {
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return e.getEmojiCategory(
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ctx,
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"ID",
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func(emojiCategory *gtsmodel.EmojiCategory) error {
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return e.newEmojiCategoryQ(emojiCategory).Where("? = ?", bun.Ident("emoji_category.id"), id).Scan(ctx)
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},
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id,
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)
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}
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func (e *emojiDB) GetEmojiCategoryByName(ctx context.Context, name string) (*gtsmodel.EmojiCategory, db.Error) {
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return e.getEmojiCategory(
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ctx,
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"Name",
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func(emojiCategory *gtsmodel.EmojiCategory) error {
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return e.newEmojiCategoryQ(emojiCategory).Where("LOWER(?) = ?", bun.Ident("emoji_category.name"), strings.ToLower(name)).Scan(ctx)
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},
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name,
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)
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}
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func (e *emojiDB) getEmoji(ctx context.Context, lookup string, dbQuery func(*gtsmodel.Emoji) error, keyParts ...any) (*gtsmodel.Emoji, db.Error) {
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return e.state.Caches.GTS.Emoji().Load(lookup, func() (*gtsmodel.Emoji, error) {
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var emoji gtsmodel.Emoji
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// Not cached! Perform database query
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if err := dbQuery(&emoji); err != nil {
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return nil, e.conn.ProcessError(err)
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}
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return &emoji, nil
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}, keyParts...)
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}
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func (e *emojiDB) GetEmojisByIDs(ctx context.Context, emojiIDs []string) ([]*gtsmodel.Emoji, db.Error) {
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if len(emojiIDs) == 0 {
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return nil, db.ErrNoEntries
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}
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emojis := make([]*gtsmodel.Emoji, 0, len(emojiIDs))
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for _, id := range emojiIDs {
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emoji, err := e.GetEmojiByID(ctx, id)
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if err != nil {
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log.Errorf("emojisFromIDs: error getting emoji %q: %v", id, err)
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continue
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}
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emojis = append(emojis, emoji)
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}
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return emojis, nil
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}
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func (e *emojiDB) getEmojiCategory(ctx context.Context, lookup string, dbQuery func(*gtsmodel.EmojiCategory) error, keyParts ...any) (*gtsmodel.EmojiCategory, db.Error) {
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return e.state.Caches.GTS.EmojiCategory().Load(lookup, func() (*gtsmodel.EmojiCategory, error) {
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var category gtsmodel.EmojiCategory
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// Not cached! Perform database query
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if err := dbQuery(&category); err != nil {
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return nil, e.conn.ProcessError(err)
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}
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return &category, nil
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}, keyParts...)
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}
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func (e *emojiDB) GetEmojiCategoriesByIDs(ctx context.Context, emojiCategoryIDs []string) ([]*gtsmodel.EmojiCategory, db.Error) {
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if len(emojiCategoryIDs) == 0 {
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return nil, db.ErrNoEntries
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}
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emojiCategories := make([]*gtsmodel.EmojiCategory, 0, len(emojiCategoryIDs))
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for _, id := range emojiCategoryIDs {
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emojiCategory, err := e.GetEmojiCategory(ctx, id)
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if err != nil {
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log.Errorf("emojiCategoriesFromIDs: error getting emoji category %q: %v", id, err)
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continue
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}
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emojiCategories = append(emojiCategories, emojiCategory)
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}
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return emojiCategories, nil
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}
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