From 41d63afc2fd6d574c2bdb8719e82093ca7510042 Mon Sep 17 00:00:00 2001
From: Sohom Dutta <sohom@ucsb.edu>
Date: Fri, 15 Nov 2024 18:26:44 -0800
Subject: [PATCH] Adding support for average rating

---
 app/models/item.rb                   | 4 ++++
 app/views/item/index.html.erb        | 1 +
 app/views/item/show_listing.html.erb | 1 +
 3 files changed, 6 insertions(+)

diff --git a/app/models/item.rb b/app/models/item.rb
index 87586ef..b763b37 100644
--- a/app/models/item.rb
+++ b/app/models/item.rb
@@ -6,4 +6,8 @@ class Item < ApplicationRecord
   validates :name, presence: true
   validates :description, presence: true
   validates :price, presence: true, numericality: { greater_than: 0 }
+
+  def average_rating
+    ratings.average(:score).to_f.round(2)
+  end
 end
diff --git a/app/views/item/index.html.erb b/app/views/item/index.html.erb
index 0988295..940c0f3 100644
--- a/app/views/item/index.html.erb
+++ b/app/views/item/index.html.erb
@@ -15,6 +15,7 @@
                 <p><strong>Price:</strong> <%= number_to_currency(item.price) %></p>
                 <p><strong>Seller:</strong> <%= item.user.username %></p>
                 <p><strong>Reviews:</strong> <%= item.ratings.count %></p>
+                <p><strong>Average Rating:</strong> <%= item.average_rating %> / 5</p>
             </div>
         </li>
     <% end %>
diff --git a/app/views/item/show_listing.html.erb b/app/views/item/show_listing.html.erb
index 827ff67..d16698f 100644
--- a/app/views/item/show_listing.html.erb
+++ b/app/views/item/show_listing.html.erb
@@ -2,6 +2,7 @@
 <p><strong>Description:</strong> <%= @item.description %></p>
 <p><strong>Price:</strong> <%= number_to_currency(@item.price) %></p>
 <p><strong>Seller:</strong> <%= @item.user.username %></p>
+<p><strong>Average Rating:</strong> <%= @item.average_rating %> / 5</p>
 
 <% if session[:user] %>
   <%= form_with url: create_order_path(@item), local: true do |form| %>