Exception while invoking method 'MY_SERVER_METHOD' TypeError: Cannot read property 'collectionViews' of undefined

[trukhilio]

Hey, @msavin. Thank you for the fine package! I updated the meteor to 1.8.1 and received this error.

Exception while invoking method 'MY_SERVER_METHOD_WHICH_USES_METEOR_USER' TypeError: Cannot read property 'collectionViews' of undefined
 at _getCache (packages/msavin_usercache.js:31:39)
 at Object.Meteor.user (packages/msavin_usercache.js:73:15) ...

Inspected a little bit and what I found out:

var connectionData = Meteor.default_server.sessions[connectionId];

is undefined bc Meteor.default_server.sessions object has been changed from {'connectionId': { Session: { collectionViews: { ... }}}} to Map { 'connectionId' => Session { ... }} and now we have to get the value like

Meteor.default_server.sessions.get(connectionId);

And new method wouldn't work for previous meteor 1.8. Hope this info will help you.

[RomainSennat]

Same problem for me. I've submit a pull request to fix this yesterday.

https://github.com/msavin/userCache/pull/6

[wildhart]

I'm still getting the odd instance of this error, even with the latest patch. I'm using peerlibrary:reactive-publish and I suspect the error only occurs occasionally when a user either logs out or closes the tab.

I might try inserting a line:

var connectionData = isMeteor1_8 ? Meteor.default_server.sessions.get(connectionId) : Meteor.default_server.sessions[connectionId];
if (!connectionData) return result;
var collectionViews = isMeteor1_8 ? connectionData.collectionViews.get('users').documents.get(instance.userId) : connectionData.collectionViews.users.documents[instance.userId];

Also, the pedant in me wants to move the var isMeteor1_8 = Meteor.release.match('1.8') !== null; outside of _getCache() so that it's only done once!

[trukhilio]

Hi, I updated meteor to 1.10.2 and this bug appears again, maybe it's because it's match to 1.8 and not gte 1.8

[wildhart]

It appears that this package is abandoned. I anticipated this issue with Meteor 1.10 a year ago but PR hasn't been merged yet. You could copy my fork into your packages folder.

From my fork which explains this issue:

// check meteor version.  Be forwards compatible for future major and minor versions also.
// Note that 1.10 < 1.8 so need to convert to 110 and 108 for comparison
var isMeteor1_8 = Meteor.release.match(/(\d+)\.(\d+)/);
isMeteor1_8 = (isMeteor1_8[1]*100 + isMeteor1_8[2]*1) >= 108;

Or you could replace it with my newer package wildhart:mergebox-cache which works on all collections, not just Meteor.users.

[trukhilio]

@wildhart thank you! Will try your package.