undefined method `each' for #<String:0x0000559c6e193560> - ruby-on-rails

Question

I'm trying to show the features of certain storage that the user selects from a form, but when trying to display the show view, I get
undefined method `each' for #<String:0x0000559c6e193560>
show.html.erb
<% #storage.features.each do |feature| %>
<div>
<%= feature %>
</div>
<% end %>
If I use <%= #storage.features %> the outcome is an array with the selected features, like this: ["Pet Free", "Smoke Detector", "Climate Controlled", "Easy Access"]. But I would like to show every feature separately, hence, I was trying to use .each
new.html.erb
<%= simple_form_for(Storage.new) do |f| %>
[...]
<% FeaturesData::Features.each do |feature| %>
<div>
<%= f.check_box :features, { multiple: true }, feature, nil %>
<%= f.label feature %>
</div>
<% end %>
<%= f.button :submit, 'Create Post'%>
<% end %>
app/models/concerns/features_data.rb
module FeaturesData
Features = [
"Pet Free",
"Security Camera",
"Smoke Detector",
"Climate Controlled",
"Locked Area",
"Easy Access",
"Independent Space"
]
end
storages_controller.rb
def storage_params
params.require(:storage).permit(
:title,
:description,
:address,
:storage_type,
:city,
:country,
:latitude,
:longitude,
:price,
:meters,
:user_id,
features: [],
photos: []
)
end

Answer 1

If running #storage.features.each returns undefined method 'each' for #<String:0x0000559c6e193560> error this means that #storage.features is a string, not an array. You are saying that calling <%= #storage.features %> returns an array but I suspect it's probably a string that looks like an array: '["Pet Free", "Smoke Detector", "Climate Controlled", "Easy Access"]'.
Have you perhaps forgotten to instruct Rails to serialize your features by adding serialize :features in your storage.rb model file?