PouchDB没有使用cordova检测sqlite插件

Question

I recently used PouchDB to get an easy way of developing through mobile phone but it seems there's a bit problem when I'm trying to deploy it on a mobile phone. You see, our data will contain a huge amount so the only option here is to use sqlite plugin for database instead of websql or indexeddb. So I tried the example provided by the documentation and it worked pretty well. But when I console.log(pouch.adapter) it says "websql". I tried browsing for the database using eclipse but there was nothing there. How can I force pouchdb to use sqlite always? Thanks!

Tldr; tried deploying pouchDB with sqlite plugin but instead it used websql. trying to force pouchDB to use sqlite all the time.

Answer 1

I responded in the Google Groups, but basically db.adapter will report "websql" whether it's using WebSQL or the SQLite plugin. Kinda confusing, sorry about that!

Update : as of PouchDB 3.4.0, you can call db.info().then(console.log.bind(console)) and print out the database info, and it will report sqlite_plugin true or false. Makes debugging easier. :)

Answer 2

One of the latest versions have had a bug and pouchdb was not using sqllite. You can see more here: https://github.com/pouchdb/pouchdb/issues/3505

Answer 3

Make sure you install this plugin

cordova plugin add https://github.com/litehelpers/Cordova-sqlite-storage

and the use this in your JS script

var db = new PouchDB('new_puchDB', {adapter : 'websql'});

ensure that the plugin was installed correctly and your cordova versions is 3.0+ (works with latest -- I'm using it as we speak)