search

ryanb / nested_form

Rails plugin to conveniently handle multiple models in a single form.
MIT License
1.79k stars 505 forks source link

Incremental counter for nested fields #367

Open Mingus85 opened 8 years ago

Mingus85 commented 8 years ago

Hi,

I'm trying build a nested form using simple_nested_form_for. I want to create a counter that changes incrementally with each added field. As following: Field 1, Field 2, etc.; field_1_id, field_2_id, etc.

I expected to be able to use the FormBuilder Object's index (e.g. f.index). This does start with '0', but the next iteration then becomes a semi-random number like '1454666984988'.

I also trield putting the nested field code in a partial and then counting the number in the collection using partial_counter + 1. Unfortunately, the counter does not seem to increase incrementally at all, and just yeilds yields Field 1, Field 1, etc.....

Is there a way to do this in Ruby, or will I have to use javascript?

ryana commented 8 years ago

I just came across this as well. I believe if it's not built into nested_form (which perusing the source, I'm thinking it's not), you'll need to do it in JS.

Mingus85 commented 8 years ago

Hi Ryan, I indeed solved this with js: http://stackoverflow.com/a/35301758/5521564