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classifications_index.go
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/
classifications_index.go
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package es
import (
"context"
"fmt"
"encoding/json"
log "github.com/Sirupsen/logrus"
"github.com/pkg/errors"
"github.com/volatiletech/sqlboiler/queries/qm"
"gopkg.in/olivere/elastic.v5"
"github.com/Bnei-Baruch/archive-backend/consts"
"github.com/Bnei-Baruch/archive-backend/mdb"
"github.com/Bnei-Baruch/archive-backend/mdb/models"
)
func MakeClassificationsIndex(namespace string) *ClassificationsIndex {
ci := new(ClassificationsIndex)
ci.baseName = consts.ES_CLASSIFICATIONS_INDEX
ci.namespace = namespace
return ci
}
type ClassificationsIndex struct {
BaseIndex
}
func (index *ClassificationsIndex) ReindexAll() error {
log.Info("Classifications Index - Reindexing all.")
if err := index.removeFromIndexQuery(elastic.NewMatchAllQuery()); err != nil {
return err
}
if err := index.addTagsToIndexSql("TRUE"); err != nil {
return err
}
return index.addSourcesToIndexSql("TRUE")
}
func (index *ClassificationsIndex) Add(scope Scope) error {
log.Info("Classifications Index - Add. Scope: %+v.", scope)
return index.addToIndex(scope)
}
func (index *ClassificationsIndex) Update(scope Scope) error {
log.Info("Classifications Index - Update. Scope: %+v.", scope)
if err := index.Delete(scope); err != nil {
return err
}
return index.addToIndex(scope)
}
func (index *ClassificationsIndex) Delete(scope Scope) error {
log.Info("Classifications Index - Delete. Scope: %+v.", scope)
if scope.TagUID != "" {
if err := index.removeFromIndexQuery(elastic.NewTermsQuery("mdb_uid", scope.TagUID)); err != nil {
return err
}
}
if scope.SourceUID != "" {
if err := index.removeFromIndexQuery(elastic.NewTermsQuery("mdb_uid", scope.SourceUID)); err != nil {
return err
}
}
return nil
}
func (index *ClassificationsIndex) addToIndex(scope Scope) error {
if scope.TagUID != "" {
return index.addTagsToIndexSql(fmt.Sprintf("uid = '%s'", scope.TagUID))
}
if scope.SourceUID != "" {
return index.addSourcesToIndexSql(fmt.Sprintf("uid = '%s'", scope.SourceUID))
}
return nil
}
func (index *ClassificationsIndex) addTagsToIndexSql(sqlScope string) error {
tags, err := mdbmodels.Tags(mdb.DB,
qm.Load("TagI18ns"),
qm.Where(sqlScope)).All()
if err != nil {
return errors.Wrap(err, "Fetch tags from mdb")
}
log.Infof("Classifications Index - Adding %d tags. Scope: %s.", len(tags), sqlScope)
for _, tag := range tags {
if !tag.ParentID.Valid {
log.Infof("Classifications Index - Skipping root tag [%s].", tag.UID)
continue
}
if err := index.indexTag(tag); err != nil {
return err
}
}
return nil
}
func (index *ClassificationsIndex) addSourcesToIndexSql(sqlScope string) error {
sources, err := mdbmodels.Sources(mdb.DB,
qm.Load("SourceI18ns"),
qm.Where(sqlScope)).All()
if err != nil {
return errors.Wrap(err, "Fetch sources from mdb.")
}
log.Infof("Classifications Index - Adding %d sources. Scope: %s.", len(sources), sqlScope)
for _, source := range sources {
if err := index.indexSource(source); err != nil {
return err
}
}
return nil
}
func (index *ClassificationsIndex) removeFromIndexQuery(elasticScope elastic.Query) error {
source, err := elasticScope.Source()
if err != nil {
return err
}
jsonBytes, err := json.Marshal(source)
if err != nil {
return err
}
log.Infof("Classifications Index - Removing from index. Scope: %s", string(jsonBytes))
for _, lang := range consts.ALL_KNOWN_LANGS {
indexName := index.indexName(lang)
res, err := mdb.ESC.DeleteByQuery(indexName).
Query(elasticScope).
Do(context.TODO())
if err != nil {
return errors.Wrapf(err, "Remove from index %s %+v\n", indexName, elasticScope)
}
if res.Deleted > 0 {
fmt.Printf("Deleted %d documents from %s.\n", res.Deleted, indexName)
}
// If not exists Deleted will be 0.
// if resp.Deleted != int64(len(uids)) {
// return errors.Errorf("Not deleted: %s %+v\n", indexName, uids)
// }
}
return nil
}
func (index *ClassificationsIndex) indexTag(t *mdbmodels.Tag) error {
for i := range t.R.TagI18ns {
i18n := t.R.TagI18ns[i]
if i18n.Label.Valid && i18n.Label.String != "" {
c := Classification{
MDB_UID: t.UID,
Type: "tag",
Name: i18n.Label.String,
NameSuggest: i18n.Label.String,
}
name := index.indexName(i18n.Language)
cBytes, err := json.Marshal(c)
if err != nil {
return err
}
log.Infof("Classifications Index - Add tag %s to index %s", string(cBytes), name)
resp, err := mdb.ESC.Index().
Index(name).
Type("tags").
BodyJson(c).
Do(context.TODO())
if err != nil {
return errors.Wrapf(err, "Index tag %s %s", name, t.UID)
}
if !resp.Created {
return errors.Errorf("Not created: tag %s %s", name, t.UID)
}
}
}
return nil
}
func (index *ClassificationsIndex) indexSource(s *mdbmodels.Source) error {
for i := range s.R.SourceI18ns {
i18n := s.R.SourceI18ns[i]
if i18n.Name.Valid && i18n.Name.String != "" {
c := Classification{
MDB_UID: s.UID,
Type: "source",
Name: i18n.Name.String,
NameSuggest: i18n.Name.String,
}
if i18n.Description.Valid && i18n.Description.String != "" {
c.Description = i18n.Description.String
c.DescriptionSuggest = i18n.Description.String
}
name := index.indexName(i18n.Language)
cBytes, err := json.Marshal(c)
if err != nil {
return err
}
log.Infof("Classifications Index - Add source %s to index %s", string(cBytes), name)
resp, err := mdb.ESC.Index().
Index(name).
Type("sources").
BodyJson(c).
Do(context.TODO())
if err != nil {
return errors.Wrapf(err, "Index source %s %s.", name, s.UID)
}
if !resp.Created {
return errors.Errorf("Not created: source %s %s.", name, s.UID)
}
}
}
return nil
}