Problem with multi loop create method in rails controller - ruby-on-rails

Question

I am having an issue looping through nested form parameters using Stimulus Rails Nested Form. What I have is a nested form where people can select one or many schedules they want to apply the event to, and also create one or many sets of schedule time ranges. So I could say Building A and B on Mon-Wed are going to have an event from 7Am to 12PM. Thurs/Fri an event from 8:00AM to 5:00PM. Any help is appreciated!
I need to keep this info on one table for various reasons so I am trying to loop through the schedules, then loop through the days and times in the time ranges and create separate events for them.
In my create method I have this:
def create
scheduleevent_params[:schedule_ids].each do |schedule_id|
scheduleevent_params[:schedtimeranges_attributes].each do |key, value|
value[:days].each do |day|
#scheduleevent = Scheduleevent.new(schedule_id: schedule_id, day: day, title: scheduleevent_params[:title],
description: scheduleevent_params[:description], start_date: scheduleevent_params[:start_date], end_date: scheduleevent_params[:end_date],
start_time: value[:start_time], end_time: value[:end_time] )
#scheduleevent.user_id = current_user.id
end
end
end
respond_to do |format|
if #scheduleevent.save
params[:start_date] = #scheduleevent.start_date.to_date
format.turbo_stream
format.html { redirect_to scheduleevent_url(#scheduleevent), notice: "Scheduleevent was successfully created." }
format.json { render :show, status: :created, location: #scheduleevent }
else
format.html { render :new, status: :unprocessable_entity }
format.json { render json: #scheduleevent.errors, status: :unprocessable_entity }
end
end
end
I am getting the error undefined method `each' for nil:NilClass on the [:days].each secondary loop.
params:
def scheduleevent_params
params.require(:scheduleevent).permit( :title, :day, :start_time, :end_time, :description, :start_date, :end_date, :repeattypeid, :hexcolor, :scheduleinstid, :locked, schedule_ids: [],
schedtimeranges_attributes: [ :id, :start_time, :end_time, :repeattype, :_destroy, days: [] ])
end
Here is what is coming through:
{"title"=>"DW1",
"description"=>"DW1",
"start_time"=>"2022-10-24 00:00",
"end_time"=>"2022-10-28 00:00",
"schedtimeranges_attributes"=>{"1666122012736"=>{"days"=>["1", "2", "3"], "start_time"=>"12:00 PM", "end_time"=>"6:00 PM", "_destroy"=>"false"}},
"schedule_ids"=>["", "1", "2"]},
form:
<%= form_with(model: scheduleevent, class: "contents", data: { controller: 'nested-form', nested_form_wrapper_selector_value: '.nested-form-wrapper' }) do |form| %>
<template data-nested-form-target="template">
<%= form.fields_for :schedtimeranges, Schedtimerange.new, child_index: 'NEW_RECORD' do |schedtimeranges| %>
<%= render "schedtimerange_form", form: schedtimeranges %>
<% end %>
</template>
<%= form.fields_for :schedtimeranges do |schedtimeranges| %>
<%= render "schedtimerange_form", form: schedtimeranges %>
<% end %>
<% end %>

Answer 1

{"title"=>"DW1",
"description"=>"DW1",
"start_time"=>"2022-10-24 00:00",
"end_time"=>"2022-10-28 00:00",
"schedtimeranges_attributes"=>{"1666122012736"=>{"days"=>["1", "2", "3"], "start_time"=>"12:00 PM", "end_time"=>"6:00 PM", "_destroy"=>"false"}},
"schedule_ids"=>["", "1", "2"]},
Based on your params, you will need an extra loop to iterate over days
def create
scheduleevent_params[:schedule_ids].each do |schedule_id|
scheduleevent_params[:schedtimeranges_attributes].each do |key, value|
value[:days].each do |day|
#scheduleevent = Scheduleevent.new(scheduleinstid: schedule_id, day: day, title: scheduleevent_params[:title],
description: scheduleevent_params[:description])
#scheduleevent.user_id = current_user.id
#scheduleevent.save
end
end
end
end