Error: param is missing or the value is empty:retweet - ruby-on-rails

Question

I am new to Rails. I want to pass parameters to DB via controller, but I receive this error param is missing or the value is empty:retweet. I think the problem is the way of passing parameters in view.
Here is the view
<% for #p in #posts %>
<div class="panel panel-default post-panel">
<div class="panel-body row">
<div class="col-sm-1">
<img src="/avatar.png" class="rounded-img" height="50px" width="50px">
</div>
<div class="col-sm-11">
<p class="post-title"><%= User.find(#p.user_id).username %> <span class="post-creation">- <%= #p.created_at.to_formatted_s(:short) %></span></p>
<p class="post-content"><%= #p.content %></p>
</div>
<div class="col-sm-12">
<p class="post-links">
<span class="glyphicon glyphicon-comment g-links" aria-hidden="true"></span>
**<%= form_for Retweet.new do |f| %>
<%= hidden_field_tag current_user.id, (:user_id) %>
<%= hidden_field_tag #p.id, (:post_id) %>
<%= f.submit "Retweet", class:"btn btn-primary"%>**
<% end %>
And here is the Controller
def new
#retweet = Retweet.new
end
def create
#retweet = Retweet.new(post_params)
redirect_to(:back)
end
private def post_params
params.require(:retweet).permit(:user_id, :post_id)
end
end

Answer 1

You should read up some tutorials on basic REST controllers in Rails. Your create action didn't save the retweet.
def create
#retweet = Retweet.new(post_params)
if #retweet.save
redirect_to(:back)
else
render action: 'new'
end
end
Edit: Just noticed your form is all wrong:
<%= form_for Retweet.new do |f| %>
<%= f.hidden_field :user_id, current_user.id %>
<%= f.hidden_field :post_id, #p.id %>
<%= f.submit "Retweet", class:"btn btn-primary"%>**
<% end %>
Mind you that you shouldn't allow settign the user_id like this, it is very easy to change it and thus mess around with your data. Instead you should add this to retweet#create:
#retweet.user = current_user