Silpion

This plugin gives a possibility to manage Frequently Asked Questions as a custom post type. Site admin is able to add and edit questions and answers, assign them to categories and then display the output on any page using [faq] or [faq category={{category_id}}] on any WordPress page.
You can embeed the FAQ directly in your code using lcb_faq_display() function.

LCB FAQ

Displays questions with answers with FAQ category column.

aparnascodex

Files add on plugin allows to create file type question which can be used in event registration form. Attendees will be able to upload files while registerting for an event using this addon. Admin will be able to restrict the file type by setting file extensions for each question.

Files Addon for Event Espresso 4

Great work! Thanks for sharing this.
Would be nice to have a link to download/open the image when viewing the registrants details (screenshot: http://www.screencast.com/t/ohSjb5T9). Maybe make the image clickable?
By the way, I added this to our "Third-party Add-ons" page on our website: https://eventespresso.com/third-party-addons/



Great addition to Event Espresso!

I'm one of the Event Espresso core developers who primarily worked on the forms system. I've scanned over the code and it looks very similar to our ideal for what an addon would look like. Thanks!

Is there a Github repo for this? That would be nice for collaboration IMO.

FYI we've recently added a better way for enqueuing scripts and CSS with form inputs.

You should basically put the contents of EE_SSA_FILE::ssa_enqueue_scripts() inside a new method EE_File_Display_Strategy::enqueue_js() (which overrides the parent's enqueue_js() method). That way you'll only enqueue js and css when the input will actually be displayed. Right now, you'll be enqueueing the JS and CSS as soon as the input is created, regardless of whether it's actually displayed during this request or not. This change may make it work not work with older versions of EE4, before the enqueue_js method on fields was called consistently. 

For that you might want to follow the model of our mock addon a little more closely, ie actually use EE_Register_Addon::register() to register your addon, register a module (eg name it something like EED_SSA_File_Input which sets up all the actions and filters your addon needs), and also set a minimum EE core version. This way, if someone tries to run your add-on with an older version of EE, they'll get a notice saying it's too old and then the actions/filters won't be executed.

But for the most part, this seems to work great.

Nicely coded

Files add on plugin allows to create file upload type question which can be used in event registration form.

LCB FAQ vs Files Addon for Event Espresso 4