Using wicked_pdf, save as pdf including user supplied data - ruby

Question

I have a template to be filled out by a user. My goal is to convert the template into a pdf (containing information supplied by the user) using wicked_pdf.
Also, none of the user input is hitting the model/database. I simply need to convert the template to a pdf containing the user's data, nothing more.
So far, I can convert the template to a pdf, save it and redirect back to my index view. However, none of the fields filled in by the user are saved; all fields that were containing input or values typed by the user are blank. It's simply saving a blank template. How can I convert a pdf and user supplied data to a pdf using wicked_pdf?
# controller save method --->
def save_grade_sheet
#result = Result.find(params[:id])
if current_user.admin?
filename = "#{#result.user.last_name}_grades.pdf"
save_path = "#{Rails.root}/public/uploads/#{#result.user.last_name}/#{filename}"
respond_to do |format|
pdf = render_to_string pdf: filename,
template: "/results/grade_sheet.html.erb",
encoding: "UTF-8",
disposition: "attachment",
save_to_file: save_path,
save_only: true
File.open(save_path, "wb") do |file|
file << pdf
end
flash[:notice] = "#{filename} successfully saved"
format.html { redirect_to results_path }
end
else
head :unauthorized
end
end
# sample template code
<div>
<div>
<h2>PERSONNEL INFORMATION</h2>
<p>Examinee's Name: <%= #result.user.first_name %> <%= #result.user.last_name %></p>
<p>Examiner's Name: <input class="inline" type="text"></p>
</div>
<div>
<p>Exam Type: <%= #result.test.upcase %></p>
<p>Exam Version: <input class="inline" type="text"></p>
<p>Exam Date: <%= #result.created_at.strftime("%m-%d-%y") %></p>
</div>
<%= button_to "Create Grade Sheet", save_grade_sheet_result_path(#result), data: { method: :post }, class: "btn btn-primary btn-lg"%>
</div>

Answer 1

I was sending everything to the correct route, but none of the data was actually being passed. Instead, I needed to wrap everything in a form_tag and use a submit_tag.
<%= form_tag(save_grade_sheet_result_path(#result), method: :post) %>
<div>
<h2>PERSONNEL INFORMATION</h2>
<p>Examiner's Name: <%= text_field_tag :examiner_name, #examiner_name, class: "inline" %></p>
<p>Exam Version:<%= text_field_tag :exam_version, #exam_version, class: "inline" %></p>
</div>
<%= submit_tag "Create Grade Sheet", class: "btn btn-primary btn-lg" %>
<% end %>
And in my controller, I needed to grab the params passed in:
def save_grade_sheet
#result = Result.find(params[:id])
#examiner_name = params[:examiner_name]
#exam_version = params[:exam_version]
if current_user.admin?
# existing code
end
end