How to create an entry in rails if the entry dependent on it has not yet been saved and there is no id?

Question

JavaScript

I ran into a funny problem.
For example, there are posts, a post can have many pictures via has_many.
I load pictures ajax and if the post has already been created, then there is no problem, send the post id, create a picture and attach it to the post. (edit)

The problem arises when I want to create a new post, where there is no id itself, since the model is not saved. And it turns out I can’t attach the picture anywhere because there is no id.

I load pictures ajax so that they can be immediately inserted into the post being created.

Are there any considerations in which direction to dig? Or did I take the wrong approach at all?
Doing nested_forms and saving pictures along with the post is not an option - when writing a post, you need to upload a new picture in one click and insert it into the post.

Answer 1

You can create these pictures without specifying an owner, return their IDs as the result of an ajax request, and store those IDs in the form. When saving a post, look at what IDs of the pictures you received along with the form, and after saving the post, put down the ID of the owner.