Wizard or Form to create 5 nodes of 3 content types [closed]

Question

I'm building a genealogy site. One of the most important use cases is to create an individual. I want to use a single form to capture information that will be used to create up to five nodes after clicking submit. I've done a bunch of research, and found lots of stuff partially represented by the links below, but I haven't found anything that will do this. Can you point me to any modules to that do this? Or will I need to write my own module for this?

New Individual form captures the following fields:

• Birth Given & Surnames
• Current checkbox (checked if it's still individual's current name)
• End date, if not current name
• Current Given & Surnames - if different from birth
• Start Date - if applicable
• Date of Birth
• Place of Birth
• Date of Death
• Place of Death

The form then creates the following five nodes:

1. Individual node - with Title
2. Name node for birth name
3. Name node for current name (if different from birth name)
4. Event node for birth
5. Event node for death

Nodes 2-5 would have ER field_individual, to link back to the individual to which they are related.

Below are links to some of the resources I have found which are similar, but do not actually do what I'm looking to do:

• https://www.drupal.org/project/webform_wizard_full_title
• https://www.sitepoint.com/building-multi-page-wizard-like-form-drupal/
• https://www.drupal.org/forum/support/post-installation/2008-06-06/adding-multiple-nodes-at-once
• https://www.webwash.net/create-multiple-nodes-from-a-single-page/
• Creating Nodes and Referenced Nodes at Same Time
• https://www.drupal.org/forum/support/module-development-and-code-questions/2007-11-18/multiple-node-types-in-one-module
• https://www.drupal.org/project/pageroute

Answer 1

I think you will need a custom module to do that

An outline of what your module should be doing

• Create a simple module using the docs or following a simple module tutorial or by studying the examples module
• Extend it by creating a form using drupal 8 form API
  • Validate on submit that the input fields are filled in properly
• On formSubmit you should create your nodes programmatically
  • Entity references can be created using this as a guide