Class: ApplicationRecord

Inherits:

ActiveRecord::Base

• Object
• ActiveRecord::Base
• ApplicationRecord

Includes:

NilifyBlanks

Defined in:

app/models/application_record.rb

Direct Known Subclasses

AlternateValue, Attribution, BiocurationClassification, BiologicalAssociation, BiologicalAssociationsBiologicalAssociationsGraph, BiologicalAssociationsGraph, BiologicalRelationship, BiologicalRelationshipType, CachedMapItemTranslation, CachedMapRegister, CharacterState, CitationTopic, CollectionObjectObservation, CollectionProfile, CommonName, Confidence, Container, ContainerItem, ControlledVocabularyTerm, DataAttribute, DatasetRecord, DatasetRecordField, Depiction, DerivedCollectionObject, Descriptor, Document, Download, DwcOccurrence, GeneAttribute, GeographicAreaType, GeographicAreasGeographicItem, Identifier, Import, ImportDataset, Label, Language, Namespace, Note, Observation, ObservationMatrixColumn, ObservationMatrixColumnItem, Organization, OriginRelationship, OtuPageLayout, OtuPageLayoutSection, OtuRelationship, PreparationType, Project, ProjectMember, ProjectSource, Protocol, ProtocolRelationship, PublicContent, RangedLotCategory, Repository, Role, Sequence, SequenceRelationship, Serial, SerialChronology, SledImage, Tag, TaggedSectionKeyword, TaxonDetermination, TaxonNameClassification, TaxonNameRelationship, TypeMaterial, User

Class Method Summary

• .transaction_with_retry(&block) ⇒ Object

  Will run block on transaction, repeating 3 times if failed due to ActiveRecord:DeadLock exception.

Class Method Details

.transaction_with_retry(&block) ⇒ Object

Will run block on transaction, repeating 3 times if failed due to ActiveRecord:DeadLock exception.

# File 'app/models/application_record.rb', line 13

def self.transaction_with_retry(&block)
  retry_count = 0
  begin
    transaction &block
  rescue ActiveRecord::Deadlocked
    raise if retry_count > 3
    # Exponential backoff with proportional random wait time.
    sleep 2**(retry_count)*(1+rand)

    retry_count += 1
    retry
  end
end