Fix typos that prevented to display a single photo project

app/controllers/photos.rb

@@ -20,13 +20,13 @@
 
   get :index do
     @title = "Here's some photos I took"
-    @projects = Project.find_by_category_name("Photos")
+    @photos = Project.find_by_category_name("Photos")
     render 'photos/index'
   end
 
   get :index, with: :slug do
-    @project = Project.find_by_slug(params[:slug])
-    @title = @project.name
-    render 'projects/show'
+    @photo = Project.find_by_slug(params[:slug])
+    @title = @photo.name
+    render 'photos/show'
   end
 end

app/views/photos/index.erb

@@ -1,6 +1,6 @@
 <div class="photos row">
 <% unless @photos.nil? %>
-  <% @projects.each do |photo| %>
+  <% @photos.each do |photo| %>
     <a class="a-photo-cover" href="/photos/<%= photo.slug %>">
       <h3 class="heading2"><%= photo.name %></h3>
       <div class="a-photo-cover-normal">

app/views/photos/show.erb

@@ -1,6 +1,6 @@
 <div class="project row" itemscope itemtype="http://schema.org/Thing">
   <aside class="project-attachments">
-    <% @project.attachments.each do |attachment| %>
+    <% @photo.attachments.each do |attachment| %>
       <div itemscope itemtype="http://schema.org/ImageObject">
         <img src="<%= attachment.file.thumb('640x').url %>" itemprop="contentURL" alt="<%= attachment.file.name %>">
       </div>
@@ -9,12 +9,12 @@
   <article class="project-infos">
     <h3 class="heading2">The Project</h3>
     <section class="project-body" itemprop="description">
-      <%= @project.body %>
+      <%= @photo.body %>
     </section>
-    <% unless @project.tags.empty? %>
+    <% unless @photo.tags.empty? %>
       <h3 class="heading2">The Technologies</h3>
       <section class="project-tags">
-        <% @project.tags.each do |tag| %>
+        <% @photo.tags.each do |tag| %>
           <span class="project-tag tag"><%= tag.name.capitalize %></span>
         <% end %>
       </section>

models/project.rb

@@ -23,7 +23,7 @@ def cover_blurred_url
   end
 
   def self.find_by_category_name(category)
-    category = Category.find_by_name category
+    category = Category.find_by_name(category)
     unless category.nil?
       return category.projects
     end