add project avatar image to Project index and show pages

app/assets/stylesheets/projects.css.sass

@@ -13,3 +13,15 @@
 .donor-list
   .amount
     text-align: right
+
+#avatar_th
+  width: 50px
+
+.project_avatar_img
+  position: relative
+  width:    32px
+  height:   32px
+
+#project_header
+  .project_avatar_img
+    top: -5px

app/controllers/projects_controller.rb

@@ -17,6 +17,9 @@ def show
       return
     end
     commontator_thread_show(@project)
+
+    load_github_repo
+    update_project_avatar_url
   end
 
   def new
@@ -149,4 +152,29 @@ def load_project
       redirect_to root_path, alert: "Project not found"
     end
   end
+
+  def load_github_repo
+    return if @project.nil?
+
+    github_repo_uri  = URI "#{GITHUBAPI_REPO_URL}/#{@project.full_name}"
+    github_repo_resp = Net::HTTP.get_response github_repo_uri
+    return unless github_repo_resp.is_a? Net::HTTPSuccess
+
+    github_repo_json = JSON.parse github_repo_resp.body
+    return if github_repo_json["id"].nil?
+
+    @github_repo     = github_repo_json
+    @github_owner    = @github_repo["owner"]
+    @github_org      = @github_repo["organization"]
+    @is_organization = @github_org.present?
+  end
+
+  def update_project_avatar_url
+    return if @project.nil? || !@is_organization
+
+    avatar_url   = @github_org["avatar_url"]
+    is_unchanged = avatar_url.eql? @project.avatar_url
+
+    @project.update_attribute :avatar_url , avatar_url unless is_unchanged
+  end
 end

app/views/projects/index.html.haml

@@ -9,13 +9,16 @@
     %table.table.table-hover
       %thead
         %tr
+          %th#avatar_th
           %th.name Name
           %th.description Description
           %th.amount Funds
           %th.actions
       %tbody
         - @projects.each do |project|
           %tr
+            %td
+              = image_tag project.avatar_url , class: 'project_avatar_img' if project.avatar_url
             %td.name
               %strong= link_to project.name, project
             %td.description= project.description

app/views/projects/show.html.haml

@@ -2,13 +2,15 @@
   = @project.name
 - content_for :description do
   = @project.description
-  
+
 .row
   .col-md-8
-    %h1
-      = @project.name
+    %h1#project_header
       - if (url = @project.github_url).present?
-        %small= link_to glyph(:github), url, target: '_blank'
+        = (@project.avatar_url.nil?)? (glyph :github) : (image_tag @project.avatar_url , class: 'project_avatar_img')
+        = link_to @project.name, url, target: '_blank'
+      - else
+        = @project.name
     - unless @project.description.blank?
       %h3= @project.description
     - unless @project.detailed_description.blank?

config/initializers/constants.rb

@@ -0,0 +1,2 @@
+
+GITHUBAPI_REPO_URL = "https://api.github.com/repos"

db/migrate/20141020034918_add_avatar_to_projects.rb

@@ -0,0 +1,5 @@
+class AddAvatarToProjects < ActiveRecord::Migration
+  def change
+    add_column :projects, :avatar_url, :string
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20140714074128) do
+ActiveRecord::Schema.define(version: 20141020034918) do
 
   create_table "cold_storage_transfers", force: true do |t|
     t.integer  "project_id"
@@ -151,6 +151,7 @@
     t.integer  "account_balance",                 limit: 8
     t.string   "disabled_reason"
     t.text     "detailed_description"
+    t.string   "avatar_url"
   end
 
   create_table "record_changes", force: true do |t|