PouchDB 7.0.0 - TypeError: Cannot ready property 'id' of null

[aneer-anwar]

Android : 7.1.4
IOS : 4.5.5

I tried PouchDB 7.0.0 and 6.4.0 with pouchdb-adapter-cordova-sqlite 2.05 and 2.0.2
with Cordova-sqlite-storage,cordova-plugin-sqlite-2 and cordova-plugin-websql.
cacheableLayers = {
"A" : "aaaaa",
"B" : "bbbb"

}
for (let key in cacheableLayers) {

        ddoc.views[key] = {
            map: "function (doc) { "
                + "if (doc['" + key + "'] ){"
                + "emit('" + key + "',doc['" + key + "']);"
                + "}"
                + "}"
        }
    }

db.put(ddoc).then()...
When I try to put view into pouchdb I get the error: 'TypeError: Cannot read property 'id' of null' in android. Fortunately, the same code works correctly in IOS without any glitch.

Please help.

[TDola]

I am having the same error on 1 device now when conflicts are found

[TDola]

I have traced it to this line 1417 in pouchdb-adapter-websql-core -> index.es.js

metadata appears to be null.

Probably means bad json data stored in the database somewhere

[efratyo]

@TDola Was that eventually a bad json data issue? Were you able to trace down the specific bad doc?
I'm having the same problem, guessing it's a corrupted doc that causing it.

[TDola]

@TDola Was that eventually a bad json data issue? Were you able to trace down the specific bad doc?
I'm having the same problem, guessing it's a corrupted doc that causing it.

I never figured it out. Instead I built into the application a reset the user could trigger that would delete the databases and could be triggered automatically by odd data. In my application all the data is on a couch server and pouchdb is an offline store. So losing it isn't a big deal because it re-replicates when the user is back online.

[efratyo]

@TDola Interesting. Sadly for me that's not my case, we can't afford losing the pouchdb.
How did you catch the odd data to trigger this reset?

[TDola]

@TDola Interesting. Sadly for me that's not my case, we can't afford losing the pouchdb.
How did you catch the odd data to trigger this reset?

A simple date that gets updated. If the date is ever too old, suggesting something like a database backup happened, then it resets and starts again. This is a phone specific solution though because I used the phone database. Sorry I can't help more than that 🤔

[efratyo]

@TDola Yes, this won't work in my case. Thanks for the quick replies!