I've taken this article from a post on the Community forum, as it's too good to let it get lost.
One addendum I would add is that this post doesn't take into account users. If the Jomres site you are migrating only has one Super Property Manager, then this will work ok. If you have multiple property managers, then it will not work and you would need to start manually modifying the managers to properties xref table, at the bare minimum.
On to Ally's post. Thanks Ally, pat dog for me.
This post is purely for info if any others are in doubt of the ability or the route to take to migrate an existing Jomres installation on Joomla over to Wordpress. This has been covered before but maybe buried in the sands of time.
Upgraded Joomla 3.9.1, Jomres 9.15 and set up a new Wordpress installation and installed Jomres 9.15 and jrleotian_wp theme.
Tested that the new installation functions as expected.
Backed up the wp db to keep as a fall back position.
On the Joomla db, exported all Jomres tables.
On the Wordpress db, dropped all Jomres tables and then imported the Jooomla exported set of Jomres tables.
Copied Encryption file from Joomla install to the preferred Wordpress folder.
'property_details_in_tabs' => '0' to be 'property_details_in_tabs' => '1'
'use_reviews' => '1' to be 'use_reviews' => '0'
(As these are no longer possible in Site configuration Misc tab)
From the Joomla installation to the Wordpress installation
Copy /templates/jr_leotian/html/*html to /wp-content/themes/jr_leohtian_wp/html/
Copy /jomres/remote_plugins/custom_code/*.php to /jomres/remote_plugins/custom_code/
Copy /jomres/uploadedimages to /jomres/uploadedimages
The issues that tripped me up were the encryption file & the absence of property details in tabs & reviews being turned on by default.
Thank you Vince & Aladar for making this super piece of kit, the more I work with it, the more amazed I am at the level of complexity and detail you have delivered.
Hope this helps someone.