Support

May 25, 2015 at 6:16 am

Hey,

I’m currently redeveloping a website for a client that has been using EE3 for their events handling. I’m starting with a clean install of the latest version of wordpress, and the client has bought a licence for EE4, so we’re all good on those fronts.

Where I’m running into walls is the data migration between their old EE3 databases and the new EE4 install.

Due to shoddy development of their old site, their EE3 version was never (and still can’t be) updated past V 3.1.27.1.P. All the info I’ve found on data migration across EE versions makes a point of stipulating the EE3 version must be the latest one so I’m leery of attempting the migration with their current EE3 version.

Since I’m working with two separate databases, I considered installing the latest version of EE3 to the new site, migrating the data from their old to the new EE3 install and *then* attempting the upgrade to EE4 but the plugin files I have access to don’t fire automatic updates from the wordpress back end and my clients have lost their initial EE3 login details so I can’t get access to the EE3 plugin files to install manually.

Given all that, I wanted to check:

Is it possible to automate the data migration from EE3 V 3.1.27.1.P to EE4?
If automation of the process isn’t possible, are there resources that compare the EE3 and EE4 database schemas in detail so that I might migrate tables manually?
Is all of this hopeless and should I just jump off a bridge now?

Thanks!