couch-cursor

Library for fetching paginated data from couchdb

Classes

Document

Document is used to read and write a single document from couch

Constructor(Object? document, Object? connectionData)

document param will be the raw document will be replaced if hydrate is invoked if hydrate is used then doc must contain the "_id" field connectionData param is the connection information used if replace is invoked, gets replaced if hydrate is invoked

Object getRawDocument()

returns the internal document

async void hydrate(Object connectionData, String? revOverride)

will replace the internal document and update connection information, will pull latest rev by default, revOverride will pull down a specific rev

async void upsertTo(Object connectionData, String id)

will upload the internal document to the specified connection and replace the id

async void replace()

replaces the current document if connection information is present and bumps the rev

DocumentCursor

Useful for iterating through a collection of documents, documents are paginated

Constructor({int? initialIdx, int? pageSize, int? attachmentPageSize, Object connection_data})

initialIdx is the starting index of the cursor, defaults to 0 pageSize is the size of pages of docs fetched from the remote database, defaults to 1 attachmentPageSize is the size of pages that derived attachment cursors will use, defaults to 1 connectionData is the connection information the cursor will use to pull documents

async this init(Object? selector, Object? sort)

readies the cursor, must be invoked before reading pages, can also reset the cursor selector and sort are optional

async Document[] getCurrentPage()

returns the current page of documents, will not bump current index

async Document[] nextPage()

returns the current page of documents, will bump the current index

async Document[] nextFilteredPage(function filterFunction)

returns documents that pass the filter, will continue to get pages until the total number of docs is >= pageSize or all docs have been filtered, updates the index of the cursor

boolean completed

property that represents whether the end of the database has been reached

async getAttachmentCursor(Document doc)

returns a new AttachmentCursor for the given document will be hydrated before returning

Attachment

AttachmentCursor

ConnectionData

var connectionData = {USERNAME:username, PASSWORD:password, COUCHDB_HOST:host, COUCHDB_NAME:database, COUCHDB_PROTOCOL:protocol};