Is there a method to retrieve all versions of a file in PouchDB while utilizing the change feed feature?

Currently experimenting with PouchDB, I am using it for local data storage without any connection to CouchDB. My goal is to develop a method for reverting or undoing changes to a single document by utilizing its previous revisions. While browsing through the PouchDB documentation, I stumbled upon the changes feed which initially appeared to be a way to retrieve all revisions of every document. However, my attempts at fetching all revisions only resulted in obtaining the latest revision. I tried the following code snippet to fetch the changes:

db.changes({
    since: 0,
    style: 'all_docs',
    include_docs: true // eslint-disable-line camelcase
  }).then(function(results) {
    console.log(results);
  });

In summary, how can I access all revisions of one or more documents in PouchDB?

javascriptangularjspouchdb

Answer №1

Thanks to the assistance of macrog, I have successfully discovered a solution to achieve my desired outcome. In essence, I wanted to retrieve all revisions of my documents, even those that had been deleted. Here is the code snippet that now accomplishes this:

db.get(String(id), {
    revs: true, 
    open_revs: 'all' // by setting this parameter, I can also access removed "docs"
  }).then(function(found) {
    console.log(found);
  });

Although I have discontinued using db.changes() for retrieving all document revisions, I am pleased that I am now able to accomplish my initial goal.

Answer №2

Consider trying one of the alternatives mentioned in the pouchdb documentation:

Use db.get(docId, [options], [callback]) to retrieve a document specified by docId.

Here are some available options:

options.rev: Fetch a specific revision of a document (defaults to winning revision).

options.revs: Include the revision history of the document.

options.revs_info: Get a list of revisions of the document and their availability.

options.open_revs: Retrieve all leaf revisions if open_revs="all" or fetch specified leaf revisions in the same order as listed in the input array.

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