How to reinstall corrupted content type?

Hi!

Maybe we should set some things straight first so we are talking about the same things. H5P core files are what ships with the respective H5P integration. They cannot be overwritten by uploading content types.

H5P content files do not only contain the parameters entered and media files that the author may have used, but also all the libraries used to run the content. That makes it possible to share the content and to make sure other users can run it.

So, when someone uploads H5P content, H5P will compare the libraries on the server with the libraries inside the file. If there's a newer library within the file (based on the full version number, major version + minor version + patch version). If there is a newer version, then H5P will try to install that version, but only if the user has the required capabilities. That's not bound to the role per se, because the capabilities for a role can be changed.

So, answering your first question: Yes. When you upload H5P content files, you could overwrite existing H5P library files. If you upload files (with a higher library version and with the right capability) that you have tampered with, then your changes would end up on the server. If those changes expect a different parameter data structure for content than the original content that already had been created, content is likely to crash.

Without you sharing the output from the browser's development console or all of your changes, it's virtually impossible to tell what the problem may be.

If you understood what I explained above, you may have found the reason why uploading the latest version of Column in order to install it failed - it may not have a higher library version number. You should temporarily set the H5P plugin for moodle into development mode by temporarily adding

define( 'H5P_DEV' , true);

to moodle's config file, something that you don't have access to however, if I understand correctly. If you cannot run the procedure some other way, then you'd have to wait until the H5P core team releases an update to Column that would come with a higher version number. 

If you're using moodle's custom H5P integration, then I don't think it's possible to set a development mode. In that case, too, you may have to wait for an official update.

The alternative would be to identify the patched files via moodle's file API, replace them with the official ones, potentially fix the contents' parameters in the database (may be required now anyway) and take care of caching, but that's definitely something that you'd need more sophisticated access to the moodle instance for.

Best,

Oliver 

Hi!

You can access the cache contents by simply clicking on the location (here `0ad...a6.js:620:19`). That's most likely a bug indeed that leads to a crash and thus no Column instance.

If the library has been properly installed, clearing the cache will not help. The library will need to be corrected, see my previous post. You can upload files from H5P.org all day long - if they don't contain a later version of Column than on your moodle instance and moodle is not in development mode, then the Column library will not be installed (overwriting the faulty files).

Cheers,
Oliver