102 строки
3.2 KiB
Go
102 строки
3.2 KiB
Go
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
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// See LICENSE.txt for license information.
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package sqlstore
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import (
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"database/sql"
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"encoding/json"
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sq "github.com/Masterminds/squirrel"
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"github.com/pkg/errors"
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"github.com/mattermost/mattermost-server/v6/model"
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"github.com/mattermost/mattermost-server/v6/store"
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)
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type SqlLinkMetadataStore struct {
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*SqlStore
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}
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func newSqlLinkMetadataStore(sqlStore *SqlStore) store.LinkMetadataStore {
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s := &SqlLinkMetadataStore{sqlStore}
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for _, db := range sqlStore.GetAllConns() {
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table := db.AddTableWithName(model.LinkMetadata{}, "LinkMetadata").SetKeys(false, "Hash")
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table.ColMap("URL").SetMaxSize(2048)
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table.ColMap("Type").SetMaxSize(16)
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table.ColMap("Data").SetDataType(sqlStore.jsonDataType())
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}
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return s
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}
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func (s SqlLinkMetadataStore) createIndexesIfNotExists() {
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if s.DriverName() == model.DatabaseDriverMysql {
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s.CreateCompositeIndexIfNotExists("idx_link_metadata_url_timestamp", "LinkMetadata", []string{"URL(512)", "Timestamp"})
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} else {
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s.CreateCompositeIndexIfNotExists("idx_link_metadata_url_timestamp", "LinkMetadata", []string{"URL", "Timestamp"})
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}
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}
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func (s SqlLinkMetadataStore) Save(metadata *model.LinkMetadata) (*model.LinkMetadata, error) {
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if err := metadata.IsValid(); err != nil {
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return nil, err
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}
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metadata.PreSave()
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metadataBytes, err := json.Marshal(metadata.Data)
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if err != nil {
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return nil, errors.Wrap(err, "could not serialize metadataBytes to JSON")
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}
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query := s.getQueryBuilder().
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Insert("LinkMetadata").
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Columns("Hash", "URL", "Timestamp", "Type", "Data").
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Values(metadata.Hash, metadata.URL, metadata.Timestamp, metadata.Type, string(metadataBytes))
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if s.DriverName() == model.DatabaseDriverMysql {
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query = query.SuffixExpr(sq.Expr("ON DUPLICATE KEY UPDATE URL = ?, Timestamp = ?, Type = ?, Data = ?", metadata.URL, metadata.Timestamp, metadata.Type, string(metadataBytes)))
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} else {
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query = query.SuffixExpr(sq.Expr("ON CONFLICT (hash) DO UPDATE SET URL = ?, Timestamp = ?, Type = ?, Data = ?", metadata.URL, metadata.Timestamp, metadata.Type, string(metadataBytes)))
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}
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q, args, err := query.ToSql()
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if err != nil {
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return nil, errors.Wrap(err, "metadata_tosql")
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}
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_, err = s.GetMasterX().Exec(q, args...)
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if err != nil && !IsUniqueConstraintError(err, []string{"PRIMARY", "linkmetadata_pkey"}) {
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return nil, errors.Wrap(err, "could not save link metadata")
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}
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return metadata, nil
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}
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func (s SqlLinkMetadataStore) Get(url string, timestamp int64) (*model.LinkMetadata, error) {
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var metadata model.LinkMetadata
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query, args, err := s.getQueryBuilder().
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Select("*").
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From("LinkMetadata").
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Where(sq.Eq{"URL": url, "Timestamp": timestamp}).
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ToSql()
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if err != nil {
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return nil, errors.Wrap(err, "could not create query with querybuilder")
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}
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err = s.GetReplicaX().Get(&metadata, query, args...)
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if err != nil {
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if err == sql.ErrNoRows {
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return nil, store.NewErrNotFound("LinkMetadata", "url="+url)
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}
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return nil, errors.Wrapf(err, "could not get metadata with selectone: url=%s", url)
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}
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err = metadata.DeserializeDataToConcreteType()
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if err != nil {
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return nil, errors.Wrapf(err, "could not deserialize metadata to concrete type for url=%s", url)
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}
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return &metadata, nil
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}
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