# Class BRevision

Revision represents a snapshot of note's title and content at some point in the past. It's used for seamless note versioning.

#### Hierarchy (View Summary)

- AbstractBeccaEntity < BRevision >
  - BRevision

- Defined in src/becca/entities/brevision.ts:26

##### Index

### Constructors

constructor

### Properties

blobId?
content?
contentLength?
dateCreated?
dateLastEdited?
dateModified?
isProtected?
isSynced?
mime
noteId
revisionId?
title
type
utcDateCreated
utcDateLastEdited?
utcDateModified?

### Accessors

becca
isDeleted
entityName
hashedProperties
primaryKeyName

### Methods

_getContent
_setContent
beforeSaving
eraseRevision
generateHash
getAttachmentById
getAttachmentByTitle
getAttachments
getAttachmentsByRole
getContent
getJsonContent
getJsonContentSafely
getNote
getPojo
getPojoToSave
getUtcDateChanged
hasStringContent
init
isContentAvailable
markAsDeleted
markAsDeletedSimple
putEntityChange
save
setContent
updateFromRow

## Constructors

### constructor

- new BRevision(row: RevisionRow , titleDecrypted?: boolean): BRevision

  #### Parameters

  - row: RevisionRow
  - titleDecrypted: boolean = false

  #### Returns BRevision

  Overrides AbstractBeccaEntity.constructor

  - Defined in src/becca/entities/brevision.ts:47

## Properties

### `Optional` blobId

blobId?: string

Inherited from AbstractBeccaEntity.blobId

- Defined in src/becca/entities/abstract_becca_entity.ts:34

### `Optional` content

content?: string | Buffer< ArrayBufferLike >

- Defined in src/becca/entities/brevision.ts:45

### `Optional` contentLength

contentLength?: number

- Defined in src/becca/entities/brevision.ts:44

### `Optional` dateCreated

dateCreated?: string

Inherited from AbstractBeccaEntity.dateCreated

- Defined in src/becca/entities/abstract_becca_entity.ts:27

### `Optional` dateLastEdited

dateLastEdited?: string

- Defined in src/becca/entities/brevision.ts:42

### `Optional` dateModified

dateModified?: string

Inherited from AbstractBeccaEntity.dateModified

- Defined in src/becca/entities/abstract_becca_entity.ts:28

### `Optional` isProtected

isProtected?: boolean

Inherited from AbstractBeccaEntity.isProtected

- Defined in src/becca/entities/abstract_becca_entity.ts:32

### `Optional` isSynced

isSynced?: boolean

Inherited from AbstractBeccaEntity.isSynced

- Defined in src/becca/entities/abstract_becca_entity.ts:33

### mime

mime: string

- Defined in src/becca/entities/brevision.ts:40

### noteId

noteId: string

- Defined in src/becca/entities/brevision.ts:38

### `Optional` revisionId

revisionId?: string

- Defined in src/becca/entities/brevision.ts:37

### title

title: string

- Defined in src/becca/entities/brevision.ts:41

### type

type:
| "canvas"
| "code"
| "search"
| "image"
| "text"
| "file"
| "noteMap"
| "launcher"
| "doc"
| "contentWidget"
| "relationMap"
| "render"
| "mermaid"
| "book"
| "webView"
| "mindMap"
| "geoMap"

- Defined in src/becca/entities/brevision.ts:39

### utcDateCreated

utcDateCreated: string

Inherited from AbstractBeccaEntity.utcDateCreated

- Defined in src/becca/entities/abstract_becca_entity.ts:30

### `Optional` utcDateLastEdited

utcDateLastEdited?: string

- Defined in src/becca/entities/brevision.ts:43

### `Optional` utcDateModified

utcDateModified?: string

Inherited from AbstractBeccaEntity.utcDateModified

- Defined in src/becca/entities/abstract_becca_entity.ts:26

## Accessors

### `Protected` becca

- get becca(): default

  #### Returns default

  Inherited from AbstractBeccaEntity.becca

  - Defined in src/becca/entities/abstract_becca_entity.ts:47

### isDeleted

- get isDeleted(): boolean

  #### Returns boolean

  Inherited from AbstractBeccaEntity.isDeleted

  - Defined in src/becca/entities/abstract_becca_entity.ts:95

### `Static` entityName

- get entityName(): string

  #### Returns string

  - Defined in src/becca/entities/brevision.ts:27

### `Static` hashedProperties

- get hashedProperties(): string[]

  #### Returns string[]

  - Defined in src/becca/entities/brevision.ts:33

### `Static` primaryKeyName

- get primaryKeyName(): string

  #### Returns string

  - Defined in src/becca/entities/brevision.ts:30

## Methods

### `Protected`_getContent

- _getContent(): string | Buffer< ArrayBufferLike >

  #### Returns string | Buffer< ArrayBufferLike >

  Inherited from AbstractBeccaEntity._getContent

  - Defined in src/becca/entities/abstract_becca_entity.ts:261

### `Protected`_setContent

- _setContent(content: string | Buffer< ArrayBufferLike >, opts?: ContentOpts ): void

  #### Parameters

  - content: string | Buffer< ArrayBufferLike >
  - opts: ContentOpts = {}

  #### Returns void

  Inherited from AbstractBeccaEntity._setContent

  - Defined in src/becca/entities/abstract_becca_entity.ts:140

### beforeSaving

- beforeSaving(): void

  #### Returns void

  Overrides AbstractBeccaEntity.beforeSaving

  - Defined in src/becca/entities/brevision.ts:182

### eraseRevision

- eraseRevision(): void

  Revisions are not soft-deletable, they are immediately hard-deleted (erased).

  #### Returns void

  - Defined in src/becca/entities/brevision.ts:176

### generateHash

- generateHash(isDeleted?: boolean): string

  #### Parameters

  - `Optional` isDeleted: boolean

  #### Returns string

  Inherited from AbstractBeccaEntity.generateHash

  - Defined in src/becca/entities/abstract_becca_entity.ts:63

### getAttachmentById

- getAttachmentById(attachmentId: String, opts?: GetByIdOpts ): null | BAttachment

  #### Parameters

  - attachmentId: String
  - opts: GetByIdOpts = {}

  #### Returns null | BAttachment

  - Defined in src/becca/entities/brevision.ts:140

### getAttachmentByTitle

- getAttachmentByTitle(title: string): BAttachment

  #### Parameters

  - title: string

  #### Returns BAttachment

  - Defined in src/becca/entities/brevision.ts:168

### getAttachments

- getAttachments(): BAttachment []

  #### Returns BAttachment []

  - Defined in src/becca/entities/brevision.ts:127

### getAttachmentsByRole

- getAttachmentsByRole(role: string): BAttachment []

  #### Parameters

  - role: string

  #### Returns BAttachment []

  - Defined in src/becca/entities/brevision.ts:153

### getContent

- getContent(): string | Buffer< ArrayBufferLike >

  #### Returns string | Buffer< ArrayBufferLike >

  - Defined in src/becca/entities/brevision.ts:98

### getJsonContent

- getJsonContent(): null | {}

  #### Returns null | {}

  #### Throws

  Error in case of invalid JSON

  - Defined in src/becca/entities/brevision.ts:104

### getJsonContentSafely

- getJsonContentSafely(): null | {}

  #### Returns null | {}

  valid object or null if the content cannot be parsed as JSON

  - Defined in src/becca/entities/brevision.ts:115

### getNote

- getNote(): BNote

  #### Returns BNote

  - Defined in src/becca/entities/brevision.ts:73

### getPojo

- getPojo(): {
  blobId: undefined
  | string;
  content: undefined | string | Buffer< ArrayBufferLike >;
  contentLength: undefined | number;
  dateCreated: undefined | string;
  dateLastEdited: undefined | string;
  isProtected: undefined | boolean;
  mime: string;
  noteId: string;
  revisionId: undefined | string;
  title: undefined | string;
  type:
  | "canvas"
  | "code"
  | "search"
  | "image"
  | "text"
  | "file"
  | "noteMap"
  | "launcher"
  | "doc"
  | "contentWidget"
  | "relationMap"
  | "render"
  | "mermaid"
  | "book"
  | "webView"
  | "mindMap"
  | "geoMap";
  utcDateCreated: string;
  utcDateLastEdited: undefined
  | string;
  utcDateModified: undefined | string;
  }

  #### Returns {
  blobId: undefined | string;
  content: undefined | string | Buffer< ArrayBufferLike >;
  contentLength: undefined | number;
  dateCreated: undefined | string;
  dateLastEdited: undefined | string;
  isProtected: undefined | boolean;
  mime: string;
  noteId: string;
  revisionId: undefined | string;
  title: undefined | string;
  type:
  | "canvas"
  | "code"
  | "search"
  | "image"
  | "text"
  | "file"
  | "noteMap"
  | "launcher"
  | "doc"
  | "contentWidget"
  | "relationMap"
  | "render"
  | "mermaid"
  | "book"
  | "webView"
  | "mindMap"
  | "geoMap";
  utcDateCreated: string;
  utcDateLastEdited: undefined
  | string;
  utcDateModified: undefined | string;
  }

  Overrides AbstractBeccaEntity.getPojo

  - Defined in src/becca/entities/brevision.ts:188

### getPojoToSave

- getPojoToSave(): {
  blobId: undefined
  | string;
  content: undefined | string | Buffer< ArrayBufferLike >;
  contentLength: undefined | number;
  dateCreated: undefined | string;
  dateLastEdited: undefined | string;
  isProtected: undefined | boolean;
  mime: string;
  noteId: string;
  revisionId: undefined | string;
  title: undefined | string;
  type:
  | "canvas"
  | "code"
  | "search"
  | "image"
  | "text"
  | "file"
  | "noteMap"
  | "launcher"
  | "doc"
  | "contentWidget"
  | "relationMap"
  | "render"
  | "mermaid"
  | "book"
  | "webView"
  | "mindMap"
  | "geoMap";
  utcDateCreated: string;
  utcDateLastEdited: undefined
  | string;
  utcDateModified: undefined | string;
  }

  #### Returns {
  blobId: undefined | string;
  content: undefined | string | Buffer< ArrayBufferLike >;
  contentLength: undefined | number;
  dateCreated: undefined | string;
  dateLastEdited: undefined | string;
  isProtected: undefined | boolean;
  mime: string;
  noteId: string;
  revisionId: undefined | string;
  title: undefined | string;
  type:
  | "canvas"
  | "code"
  | "search"
  | "image"
  | "text"
  | "file"
  | "noteMap"
  | "launcher"
  | "doc"
  | "contentWidget"
  | "relationMap"
  | "render"
  | "mermaid"
  | "book"
  | "webView"
  | "mindMap"
  | "geoMap";
  utcDateCreated: string;
  utcDateLastEdited: undefined
  | string;
  utcDateModified: undefined | string;
  }

  Overrides AbstractBeccaEntity.getPojoToSave

  - Defined in src/becca/entities/brevision.ts:207

### getUtcDateChanged

- getUtcDateChanged(): string

  #### Returns string

  Inherited from AbstractBeccaEntity.getUtcDateChanged

  - Defined in src/becca/entities/abstract_becca_entity.ts:43

### hasStringContent

- hasStringContent(): boolean

  #### Returns boolean

  true if the note has string content (not binary)

  Overrides AbstractBeccaEntity.hasStringContent

  - Defined in src/becca/entities/brevision.ts:78

### init

- init(): void

  #### Returns void

  Inherited from AbstractBeccaEntity.init

  - Defined in src/becca/entities/abstract_becca_entity.ts:89

### isContentAvailable

- isContentAvailable(): boolean

  #### Returns boolean

  - Defined in src/becca/entities/brevision.ts:82

### markAsDeleted

- markAsDeleted(deleteId?: null | string): void

  Mark the entity as (soft) deleted. It will be completely erased later.

  This is a low-level method, for notes and branches use `note.deleteNote()` and 'branch.deleteBranch()` instead.

  #### Parameters

  - deleteId: null | string = null

  #### Returns void

  Inherited from AbstractBeccaEntity.markAsDeleted

  - Defined in src/becca/entities/abstract_becca_entity.ts:277

### markAsDeletedSimple

- markAsDeletedSimple(): void

  #### Returns void

  Inherited from AbstractBeccaEntity.markAsDeletedSimple

  - Defined in src/becca/entities/abstract_becca_entity.ts:303

### `Protected` putEntityChange

- putEntityChange(isDeleted: boolean): void

  #### Parameters

  - isDeleted: boolean

  #### Returns void

  Inherited from AbstractBeccaEntity.putEntityChange

  - Defined in src/becca/entities/abstract_becca_entity.ts:51

### save

- save(opts?: {}): this

  Saves entity - executes SQL, but doesn't commit the transaction on its own

  #### Parameters

  - `Optional` opts: {}

  #### Returns this

  Inherited from AbstractBeccaEntity.save

  - Defined in src/becca/entities/abstract_becca_entity.ts:103

### setContent

- setContent(content: string | Buffer< ArrayBufferLike >, opts?: ContentOpts ): void

  #### Parameters

  - content: string | Buffer< ArrayBufferLike >
  - opts: ContentOpts = {}

  #### Returns void

  - Defined in src/becca/entities/brevision.ts:123

### updateFromRow

- updateFromRow(row: RevisionRow ): void

  #### Parameters

  - row: RevisionRow

  #### Returns void

  Overrides AbstractBeccaEntity.updateFromRow

  - Defined in src/becca/entities/brevision.ts:57