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message_persistence.go
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message_persistence.go
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package protocol
import (
"context"
"database/sql"
"encoding/json"
"fmt"
"strings"
"github.com/status-im/status-go/protocol/common"
"github.com/status-im/status-go/protocol/protobuf"
)
func (db sqlitePersistence) tableUserMessagesAllFields() string {
return `id,
whisper_timestamp,
source,
text,
content_type,
username,
timestamp,
chat_id,
local_chat_id,
message_type,
clock_value,
seen,
outgoing_status,
parsed_text,
sticker_pack,
sticker_hash,
image_payload,
image_type,
image_base64,
audio_payload,
audio_type,
audio_duration_ms,
audio_base64,
community_id,
mentions,
links,
command_id,
command_value,
command_from,
command_address,
command_contract,
command_transaction_hash,
command_state,
command_signature,
replace_message,
edited_at,
deleted,
rtl,
line_count,
response_to,
gap_from,
gap_to,
mentioned`
}
func (db sqlitePersistence) tableUserMessagesAllFieldsJoin() string {
return `m1.id,
m1.whisper_timestamp,
m1.source,
m1.text,
m1.content_type,
m1.username,
m1.timestamp,
m1.chat_id,
m1.local_chat_id,
m1.message_type,
m1.clock_value,
m1.seen,
m1.outgoing_status,
m1.parsed_text,
m1.sticker_pack,
m1.sticker_hash,
m1.image_base64,
COALESCE(m1.audio_duration_ms,0),
m1.audio_base64,
m1.community_id,
m1.mentions,
m1.links,
m1.command_id,
m1.command_value,
m1.command_from,
m1.command_address,
m1.command_contract,
m1.command_transaction_hash,
m1.command_state,
m1.command_signature,
m1.replace_message,
m1.edited_at,
m1.deleted,
m1.rtl,
m1.line_count,
m1.response_to,
m1.gap_from,
m1.gap_to,
m1.mentioned,
m2.source,
m2.text,
m2.parsed_text,
m2.image_base64,
m2.audio_duration_ms,
m2.audio_base64,
m2.community_id,
c.alias,
c.identicon`
}
func (db sqlitePersistence) tableUserMessagesAllFieldsCount() int {
return strings.Count(db.tableUserMessagesAllFields(), ",") + 1
}
type scanner interface {
Scan(dest ...interface{}) error
}
func (db sqlitePersistence) tableUserMessagesScanAllFields(row scanner, message *common.Message, others ...interface{}) error {
var quotedText sql.NullString
var quotedParsedText []byte
var quotedFrom sql.NullString
var quotedImage sql.NullString
var quotedAudio sql.NullString
var quotedAudioDuration sql.NullInt64
var quotedCommunityID sql.NullString
var serializedMentions []byte
var serializedLinks []byte
var alias sql.NullString
var identicon sql.NullString
var communityID sql.NullString
var gapFrom sql.NullInt64
var gapTo sql.NullInt64
var editedAt sql.NullInt64
var deleted sql.NullBool
sticker := &protobuf.StickerMessage{}
command := &common.CommandParameters{}
audio := &protobuf.AudioMessage{}
args := []interface{}{
&message.ID,
&message.WhisperTimestamp,
&message.From, // source in table
&message.Text,
&message.ContentType,
&message.Alias,
&message.Timestamp,
&message.ChatId,
&message.LocalChatID,
&message.MessageType,
&message.Clock,
&message.Seen,
&message.OutgoingStatus,
&message.ParsedText,
&sticker.Pack,
&sticker.Hash,
&message.Base64Image,
&audio.DurationMs,
&message.Base64Audio,
&communityID,
&serializedMentions,
&serializedLinks,
&command.ID,
&command.Value,
&command.From,
&command.Address,
&command.Contract,
&command.TransactionHash,
&command.CommandState,
&command.Signature,
&message.Replace,
&editedAt,
&deleted,
&message.RTL,
&message.LineCount,
&message.ResponseTo,
&gapFrom,
&gapTo,
&message.Mentioned,
"edFrom,
"edText,
"edParsedText,
"edImage,
"edAudioDuration,
"edAudio,
"edCommunityID,
&alias,
&identicon,
}
err := row.Scan(append(args, others...)...)
if err != nil {
return err
}
if editedAt.Valid {
message.EditedAt = uint64(editedAt.Int64)
}
if deleted.Valid {
message.Deleted = deleted.Bool
}
if quotedText.Valid {
message.QuotedMessage = &common.QuotedMessage{
From: quotedFrom.String,
Text: quotedText.String,
ParsedText: quotedParsedText,
Base64Image: quotedImage.String,
AudioDurationMs: uint64(quotedAudioDuration.Int64),
Base64Audio: quotedAudio.String,
CommunityID: quotedCommunityID.String,
}
}
message.Alias = alias.String
message.Identicon = identicon.String
if gapFrom.Valid && gapTo.Valid {
message.GapParameters = &common.GapParameters{
From: uint32(gapFrom.Int64),
To: uint32(gapTo.Int64),
}
}
if communityID.Valid {
message.CommunityID = communityID.String
}
if serializedMentions != nil {
err := json.Unmarshal(serializedMentions, &message.Mentions)
if err != nil {
return err
}
}
if serializedLinks != nil {
err := json.Unmarshal(serializedLinks, &message.Links)
if err != nil {
return err
}
}
switch message.ContentType {
case protobuf.ChatMessage_STICKER:
message.Payload = &protobuf.ChatMessage_Sticker{Sticker: sticker}
case protobuf.ChatMessage_AUDIO:
message.Payload = &protobuf.ChatMessage_Audio{Audio: audio}
case protobuf.ChatMessage_TRANSACTION_COMMAND:
message.CommandParameters = command
}
return nil
}
func (db sqlitePersistence) tableUserMessagesAllValues(message *common.Message) ([]interface{}, error) {
var gapFrom, gapTo uint32
sticker := message.GetSticker()
if sticker == nil {
sticker = &protobuf.StickerMessage{}
}
image := message.GetImage()
if image == nil {
image = &protobuf.ImageMessage{}
}
audio := message.GetAudio()
if audio == nil {
audio = &protobuf.AudioMessage{}
}
command := message.CommandParameters
if command == nil {
command = &common.CommandParameters{}
}
if message.GapParameters != nil {
gapFrom = message.GapParameters.From
gapTo = message.GapParameters.To
}
var serializedMentions []byte
var err error
if len(message.Mentions) != 0 {
serializedMentions, err = json.Marshal(message.Mentions)
if err != nil {
return nil, err
}
}
var serializedLinks []byte
if len(message.Links) != 0 {
serializedLinks, err = json.Marshal(message.Links)
if err != nil {
return nil, err
}
}
return []interface{}{
message.ID,
message.WhisperTimestamp,
message.From, // source in table
message.Text,
message.ContentType,
message.Alias,
message.Timestamp,
message.ChatId,
message.LocalChatID,
message.MessageType,
message.Clock,
message.Seen,
message.OutgoingStatus,
message.ParsedText,
sticker.Pack,
sticker.Hash,
image.Payload,
image.Type,
message.Base64Image,
audio.Payload,
audio.Type,
audio.DurationMs,
message.Base64Audio,
message.CommunityID,
serializedMentions,
serializedLinks,
command.ID,
command.Value,
command.From,
command.Address,
command.Contract,
command.TransactionHash,
command.CommandState,
command.Signature,
message.Replace,
int64(message.EditedAt),
message.Deleted,
message.RTL,
message.LineCount,
message.ResponseTo,
gapFrom,
gapTo,
message.Mentioned,
}, nil
}
func (db sqlitePersistence) messageByID(tx *sql.Tx, id string) (*common.Message, error) {
var err error
if tx == nil {
tx, err = db.db.BeginTx(context.Background(), &sql.TxOptions{})
if err != nil {
return nil, err
}
defer func() {
if err == nil {
err = tx.Commit()
return
}
// don't shadow original error
_ = tx.Rollback()
}()
}
var message common.Message
allFields := db.tableUserMessagesAllFieldsJoin()
row := tx.QueryRow(
fmt.Sprintf(`
SELECT
%s
FROM
user_messages m1
LEFT JOIN
user_messages m2
ON
m1.response_to = m2.id
LEFT JOIN
contacts c
ON
m1.source = c.id
WHERE
m1.id = ?
`, allFields),
id,
)
err = db.tableUserMessagesScanAllFields(row, &message)
switch err {
case sql.ErrNoRows:
return nil, common.ErrRecordNotFound
case nil:
return &message, nil
default:
return nil, err
}
}
func (db sqlitePersistence) MessageByCommandID(chatID, id string) (*common.Message, error) {
var message common.Message
allFields := db.tableUserMessagesAllFieldsJoin()
row := db.db.QueryRow(
fmt.Sprintf(`
SELECT
%s
FROM
user_messages m1
LEFT JOIN
user_messages m2
ON
m1.response_to = m2.id
LEFT JOIN
contacts c
ON
m1.source = c.id
WHERE
m1.command_id = ?
AND
m1.local_chat_id = ?
ORDER BY m1.clock_value DESC
LIMIT 1
`, allFields),
id,
chatID,
)
err := db.tableUserMessagesScanAllFields(row, &message)
switch err {
case sql.ErrNoRows:
return nil, common.ErrRecordNotFound
case nil:
return &message, nil
default:
return nil, err
}
}
func (db sqlitePersistence) MessageByID(id string) (*common.Message, error) {
return db.messageByID(nil, id)
}
func (db sqlitePersistence) MessagesExist(ids []string) (map[string]bool, error) {
result := make(map[string]bool)
if len(ids) == 0 {
return result, nil
}
idsArgs := make([]interface{}, 0, len(ids))
for _, id := range ids {
idsArgs = append(idsArgs, id)
}
inVector := strings.Repeat("?, ", len(ids)-1) + "?"
query := "SELECT id FROM user_messages WHERE id IN (" + inVector + ")" // nolint: gosec
rows, err := db.db.Query(query, idsArgs...)
if err != nil {
return nil, err
}
defer rows.Close()
for rows.Next() {
var id string
err := rows.Scan(&id)
if err != nil {
return nil, err
}
result[id] = true
}
return result, nil
}
func (db sqlitePersistence) MessagesByIDs(ids []string) ([]*common.Message, error) {
if len(ids) == 0 {
return nil, nil
}
idsArgs := make([]interface{}, 0, len(ids))
for _, id := range ids {
idsArgs = append(idsArgs, id)
}
allFields := db.tableUserMessagesAllFieldsJoin()
inVector := strings.Repeat("?, ", len(ids)-1) + "?"
// nolint: gosec
rows, err := db.db.Query(fmt.Sprintf(`
SELECT
%s
FROM
user_messages m1
LEFT JOIN
user_messages m2
ON
m1.response_to = m2.id
LEFT JOIN
contacts c
ON
m1.source = c.id
WHERE NOT(m1.hide) AND m1.id IN (%s)`, allFields, inVector), idsArgs...)
if err != nil {
return nil, err
}
defer rows.Close()
var result []*common.Message
for rows.Next() {
var message common.Message
if err := db.tableUserMessagesScanAllFields(rows, &message); err != nil {
return nil, err
}
result = append(result, &message)
}
return result, nil
}
// MessageByChatID returns all messages for a given chatID in descending order.
// Ordering is accomplished using two concatenated values: ClockValue and ID.
// These two values are also used to compose a cursor which is returned to the result.
func (db sqlitePersistence) MessageByChatID(chatID string, currCursor string, limit int) ([]*common.Message, string, error) {
cursorWhere := ""
if currCursor != "" {
cursorWhere = "AND cursor <= ?" //nolint: goconst
}
allFields := db.tableUserMessagesAllFieldsJoin()
args := []interface{}{chatID}
if currCursor != "" {
args = append(args, currCursor)
}
// Build a new column `cursor` at the query time by having a fixed-sized clock value at the beginning
// concatenated with message ID. Results are sorted using this new column.
// This new column values can also be returned as a cursor for subsequent requests.
rows, err := db.db.Query(
fmt.Sprintf(`
SELECT
%s,
substr('0000000000000000000000000000000000000000000000000000000000000000' || m1.clock_value, -64, 64) || m1.id as cursor
FROM
user_messages m1
LEFT JOIN
user_messages m2
ON
m1.response_to = m2.id
LEFT JOIN
contacts c
ON
m1.source = c.id
WHERE
NOT(m1.hide) AND m1.local_chat_id = ? %s
ORDER BY cursor DESC
LIMIT ?
`, allFields, cursorWhere),
append(args, limit+1)..., // take one more to figure our whether a cursor should be returned
)
if err != nil {
return nil, "", err
}
defer rows.Close()
var (
result []*common.Message
cursors []string
)
for rows.Next() {
var (
message common.Message
cursor string
)
if err := db.tableUserMessagesScanAllFields(rows, &message, &cursor); err != nil {
return nil, "", err
}
result = append(result, &message)
cursors = append(cursors, cursor)
}
var newCursor string
if len(result) > limit {
newCursor = cursors[limit]
result = result[:limit]
}
return result, newCursor, nil
}
// AllMessageByChatIDWhichMatchPattern returns all messages which match the search
// term, for a given chatID in descending order.
// Ordering is accomplished using two concatenated values: ClockValue and ID.
// These two values are also used to compose a cursor which is returned to the result.
func (db sqlitePersistence) AllMessageByChatIDWhichMatchTerm(chatID string, searchTerm string, caseSensitive bool) ([]*common.Message, error) {
if searchTerm == "" {
return nil, fmt.Errorf("empty search term")
}
searchCond := ""
if caseSensitive {
searchCond = "AND m1.text LIKE '%' || ? || '%'"
} else {
searchCond = "AND LOWER(m1.text) LIKE LOWER('%' || ? || '%')"
}
allFields := db.tableUserMessagesAllFieldsJoin()
rows, err := db.db.Query(
fmt.Sprintf(`
SELECT
%s,
substr('0000000000000000000000000000000000000000000000000000000000000000' || m1.clock_value, -64, 64) || m1.id as cursor
FROM
user_messages m1
LEFT JOIN
user_messages m2
ON
m1.response_to = m2.id
LEFT JOIN
contacts c
ON
m1.source = c.id
WHERE
NOT(m1.hide) AND m1.local_chat_id = ? %s
ORDER BY cursor DESC
`, allFields, searchCond),
chatID, searchTerm,
)
if err != nil {
return nil, err
}
defer rows.Close()
var (
result []*common.Message
)
for rows.Next() {
var (
message common.Message
cursor string
)
if err := db.tableUserMessagesScanAllFields(rows, &message, &cursor); err != nil {
return nil, err
}
result = append(result, &message)
}
return result, nil
}
// AllMessagesFromChatsAndCommunitiesWhichMatchTerm returns all messages which match the search
// term, if they belong to either any chat from the chatIds array or any channel of any community
// from communityIds array.
// Ordering is accomplished using two concatenated values: ClockValue and ID.
// These two values are also used to compose a cursor which is returned to the result.
func (db sqlitePersistence) AllMessagesFromChatsAndCommunitiesWhichMatchTerm(communityIds []string, chatIds []string, searchTerm string, caseSensitive bool) ([]*common.Message, error) {
if searchTerm == "" {
return nil, fmt.Errorf("empty search term")
}
chatsCond := ""
if len(chatIds) > 0 {
inVector := strings.Repeat("?, ", len(chatIds)-1) + "?"
chatsCond = `m1.local_chat_id IN (%s)`
chatsCond = fmt.Sprintf(chatsCond, inVector)
}
communitiesCond := ""
if len(communityIds) > 0 {
inVector := strings.Repeat("?, ", len(communityIds)-1) + "?"
communitiesCond = `m1.local_chat_id IN (SELECT id FROM chats WHERE community_id IN (%s))`
communitiesCond = fmt.Sprintf(communitiesCond, inVector)
}
searchCond := ""
if caseSensitive {
searchCond = "m1.text LIKE '%' || ? || '%'"
} else {
searchCond = "LOWER(m1.text) LIKE LOWER('%' || ? || '%')"
}
finalCond := "AND %s AND %s"
if len(communityIds) > 0 && len(chatIds) > 0 {
finalCond = "AND (%s OR %s) AND %s"
finalCond = fmt.Sprintf(finalCond, chatsCond, communitiesCond, searchCond)
} else if len(chatIds) > 0 {
finalCond = fmt.Sprintf(finalCond, chatsCond, searchCond)
} else if len(communityIds) > 0 {
finalCond = fmt.Sprintf(finalCond, communitiesCond, searchCond)
} else {
return nil, fmt.Errorf("you must specify either community ids or chat ids or both")
}
var parameters []string
parameters = append(parameters, chatIds...)
parameters = append(parameters, communityIds...)
parameters = append(parameters, searchTerm)
idsArgs := make([]interface{}, 0, len(parameters))
for _, param := range parameters {
idsArgs = append(idsArgs, param)
}
allFields := db.tableUserMessagesAllFieldsJoin()
finalQuery := fmt.Sprintf(`
SELECT
%s,
substr('0000000000000000000000000000000000000000000000000000000000000000' || m1.clock_value, -64, 64) || m1.id as cursor
FROM
user_messages m1
LEFT JOIN
user_messages m2
ON
m1.response_to = m2.id
LEFT JOIN
contacts c
ON
m1.source = c.id
WHERE
NOT(m1.hide) %s
ORDER BY cursor DESC
`, allFields, finalCond)
rows, err := db.db.Query(finalQuery, idsArgs...)
if err != nil {
return nil, err
}
defer rows.Close()
var (
result []*common.Message
)
for rows.Next() {
var (
message common.Message
cursor string
)
if err := db.tableUserMessagesScanAllFields(rows, &message, &cursor); err != nil {
return nil, err
}
result = append(result, &message)
}
return result, nil
}
// PinnedMessageByChatID returns all pinned messages for a given chatID in descending order.
// Ordering is accomplished using two concatenated values: ClockValue and ID.
// These two values are also used to compose a cursor which is returned to the result.
func (db sqlitePersistence) PinnedMessageByChatIDs(chatIDs []string, currCursor string, limit int) ([]*common.PinnedMessage, string, error) {
cursorWhere := ""
if currCursor != "" {
cursorWhere = "AND cursor <= ?" //nolint: goconst
}
allFields := db.tableUserMessagesAllFieldsJoin()
args := make([]interface{}, len(chatIDs))
for i, v := range chatIDs {
args[i] = v
}
if currCursor != "" {
args = append(args, currCursor)
}
// Build a new column `cursor` at the query time by having a fixed-sized clock value at the beginning
// concatenated with message ID. Results are sorted using this new column.
// This new column values can also be returned as a cursor for subsequent requests.
rows, err := db.db.Query(
fmt.Sprintf(`
SELECT
%s,
pm.clock_value as pinnedAt,
pm.pinned_by as pinnedBy,
substr('0000000000000000000000000000000000000000000000000000000000000000' || m1.clock_value, -64, 64) || m1.id as cursor
FROM
pin_messages pm
JOIN
user_messages m1
ON
pm.message_id = m1.id
LEFT JOIN
user_messages m2
ON
m1.response_to = m2.id
LEFT JOIN
contacts c
ON
m1.source = c.id
WHERE
pm.pinned = 1
AND NOT(m1.hide) AND m1.local_chat_id IN %s %s
ORDER BY cursor DESC
LIMIT ?
`, allFields, "(?"+strings.Repeat(",?", len(chatIDs)-1)+")", cursorWhere),
append(args, limit+1)..., // take one more to figure our whether a cursor should be returned
)
if err != nil {
return nil, "", err
}
defer rows.Close()
var (
result []*common.PinnedMessage
cursors []string
)
for rows.Next() {
var (
message common.Message
pinnedAt uint64
pinnedBy string
cursor string
)
if err := db.tableUserMessagesScanAllFields(rows, &message, &pinnedAt, &pinnedBy, &cursor); err != nil {
return nil, "", err
}
pinnedMessage := &common.PinnedMessage{
Message: &message,
PinnedAt: pinnedAt,
PinnedBy: pinnedBy,
}
result = append(result, pinnedMessage)
cursors = append(cursors, cursor)
}
var newCursor string
if len(result) > limit && cursors != nil {
newCursor = cursors[limit]
result = result[:limit]
}
return result, newCursor, nil
}
func (db sqlitePersistence) PinnedMessageByChatID(chatID string, currCursor string, limit int) ([]*common.PinnedMessage, string, error) {
return db.PinnedMessageByChatIDs([]string{chatID}, currCursor, limit)
}
// MessageByChatIDs returns all messages for a given chatIDs in descending order.
// Ordering is accomplished using two concatenated values: ClockValue and ID.
// These two values are also used to compose a cursor which is returned to the result.
func (db sqlitePersistence) MessageByChatIDs(chatIDs []string, currCursor string, limit int) ([]*common.Message, string, error) {
cursorWhere := ""
if currCursor != "" {
cursorWhere = "AND cursor <= ?" //nolint: goconst
}
allFields := db.tableUserMessagesAllFieldsJoin()
args := make([]interface{}, len(chatIDs))
for i, v := range chatIDs {
args[i] = v
}
if currCursor != "" {
args = append(args, currCursor)
}
// Build a new column `cursor` at the query time by having a fixed-sized clock value at the beginning
// concatenated with message ID. Results are sorted using this new column.
// This new column values can also be returned as a cursor for subsequent requests.
rows, err := db.db.Query(
fmt.Sprintf(`
SELECT
%s,
substr('0000000000000000000000000000000000000000000000000000000000000000' || m1.clock_value, -64, 64) || m1.id as cursor
FROM
user_messages m1
LEFT JOIN
user_messages m2
ON
m1.response_to = m2.id
LEFT JOIN
contacts c
ON
m1.source = c.id
WHERE
NOT(m1.hide) AND m1.local_chat_id IN %s %s
ORDER BY cursor DESC
LIMIT ?
`, allFields, "(?"+strings.Repeat(",?", len(chatIDs)-1)+")", cursorWhere),
append(args, limit+1)..., // take one more to figure our whether a cursor should be returned
)
if err != nil {
return nil, "", err
}
defer rows.Close()
var (
result []*common.Message
cursors []string
)
for rows.Next() {
var (
message common.Message
cursor string
)
if err := db.tableUserMessagesScanAllFields(rows, &message, &cursor); err != nil {
return nil, "", err
}
result = append(result, &message)
cursors = append(cursors, cursor)
}
var newCursor string
if len(result) > limit {
newCursor = cursors[limit]
result = result[:limit]
}
return result, newCursor, nil
}
// EmojiReactionsByChatID returns the emoji reactions for the queried messages, up to a maximum of 100, as it's a potentially unbound number.
// NOTE: This is not completely accurate, as the messages in the database might have change since the last call to `MessageByChatID`.
func (db sqlitePersistence) EmojiReactionsByChatID(chatID string, currCursor string, limit int) ([]*EmojiReaction, error) {
cursorWhere := ""
if currCursor != "" {
cursorWhere = "AND substr('0000000000000000000000000000000000000000000000000000000000000000' || m.clock_value, -64, 64) || m.id <= ?" //nolint: goconst
}
args := []interface{}{chatID, chatID}
if currCursor != "" {
args = append(args, currCursor)
}
args = append(args, limit)
// NOTE: We match against local_chat_id for security reasons.
// As a user could potentially send an emoji reaction for a one to
// one/group chat that has no access to.
// We also limit the number of emoji to a reasonable number (1000)
// for now, as we don't want the client to choke on this.
// The issue is that your own emoji might not be returned in such cases,
// allowing the user to react to a post multiple times.
// Jakubgs: Returning the whole list seems like a real overkill.
// This will get very heavy in threads that have loads of reactions on loads of messages.
// A more sensible response would just include a count and a bool telling you if you are in the list.
// nolint: gosec
query := fmt.Sprintf(`
SELECT
e.clock_value,
e.source,
e.emoji_id,
e.message_id,
e.chat_id,
e.local_chat_id,
e.retracted
FROM
emoji_reactions e
WHERE NOT(e.retracted)
AND
e.local_chat_id = ?
AND
e.message_id IN
(SELECT id FROM user_messages m WHERE NOT(m.hide) AND m.local_chat_id = ? %s
ORDER BY substr('0000000000000000000000000000000000000000000000000000000000000000' || m.clock_value, -64, 64) || m.id DESC LIMIT ?)
LIMIT 1000
`, cursorWhere)
rows, err := db.db.Query(
query,
args...,
)
if err != nil {
return nil, err
}
defer rows.Close()
var result []*EmojiReaction
for rows.Next() {
var emojiReaction EmojiReaction
err := rows.Scan(&emojiReaction.Clock,
&emojiReaction.From,
&emojiReaction.Type,
&emojiReaction.MessageId,
&emojiReaction.ChatId,
&emojiReaction.LocalChatID,
&emojiReaction.Retracted)
if err != nil {
return nil, err
}
result = append(result, &emojiReaction)
}
return result, nil
}
// EmojiReactionsByChatIDs returns the emoji reactions for the queried messages, up to a maximum of 100, as it's a potentially unbound number.
// NOTE: This is not completely accurate, as the messages in the database might have change since the last call to `MessageByChatID`.
func (db sqlitePersistence) EmojiReactionsByChatIDs(chatIDs []string, currCursor string, limit int) ([]*EmojiReaction, error) {
cursorWhere := ""
if currCursor != "" {
cursorWhere = "AND substr('0000000000000000000000000000000000000000000000000000000000000000' || m.clock_value, -64, 64) || m.id <= ?" //nolint: goconst
}
chatsLen := len(chatIDs)
args := make([]interface{}, chatsLen*2)
for i, v := range chatIDs {
args[i] = v