Rudimentary feed fetching and display

This commit is contained in:
Aaron Mueller 2012-04-08 04:04:37 +02:00
parent c1194b4d3c
commit e38a1bee12
11 changed files with 104 additions and 251 deletions

View File

@ -1,2 +1,11 @@
class FeedsController < ApplicationController
# Show all feeds
def index
@feeds = Feed.all
end
# Show a single feed
def show
@items = Feed.find(params[:id]).items
end
end

View File

@ -1,8 +1,50 @@
require "pp"
class Feed < ActiveRecord::Base
has_many :items
has_many :items
validates_uniqueness_of :url
validates_presence_of :title
scope :recent, order(:published, :asc).limit(10)
default_scope where(:has_errors => false)
scope :with_error, unscoped.where(:has_errors => true)
def fetch!
Feedzirra::Feed.fetch_and_parse(url,
:on_success => lambda do |url, feed|
feed.entries.each do |entry|
unless Item.exists?(:url => entry.url)
entry.sanitize!
items << Item.create_from_feed_entry!(entry)
end
end
by_url(url).update_attribute(:has_errors, false)
end,
:on_failure => lambda do |url, response_code, response_header, response_body|
by_url(url).update_attribute(:has_errors, true)
end
)
end
def self.import(url, *params)
Feedzirra::Feed.fetch_and_parse(url,
:on_success => lambda do |url, feed|
Feed.create!(:url => feed.feed_url, :title => feed.title).fetch!
end,
:on_failure => lambda do |url, response_code, response_header, response_body|
if params.first.include?(:force)
Feed.create!(:url => url, :has_errors => true)
end
end
)
end
def self.update_all!
Feed.all.each do |feed|
feed.fetch!
end
end
private
def by_url(feed_url)
Feed.where(:url => feed_url).first
end
end

View File

@ -3,4 +3,22 @@ class Item < ActiveRecord::Base
validates_presence_of :title, :author, :content
validates_uniqueness_of :url
default_scope order("published_at DESC")
scope :recent, limit(10)
def self.create_from_feed_entry!(feed_entry)
feed_entry.sanitize!
self.create!(
:title => feed_entry.title,
:url => feed_entry.url,
:author => feed_entry.author,
:published_at => feed_entry.published,
:content => feed_entry.content
)
end
def <=>(other)
self.published_at <=> other.published_at
end
end

View File

@ -0,0 +1,5 @@
<ul>
<% @feeds.each do |feed| %>
<li><%= link_to feed.title, feed_path(feed) %></li>
<% end %>
</ul>

View File

@ -0,0 +1,7 @@
<% @items.each do |item| %>
<div class="item">
<h2><%= raw(item.title) %></h2>
<span><%= time_ago_in_words(item.published_at) %> by <%= item.author %></span>
<p><%= raw(item.content) %></p>
</div>
<% end %>

View File

@ -8,6 +8,8 @@
</head>
<body>
<!-- TODO: Add feed functionality to header with form -->
<%= yield %>
</body>

View File

@ -12,6 +12,7 @@ FeedFu::Application.routes.draw do
# Sample resource route (maps HTTP verbs to controller actions automatically):
# resources :products
resources :feeds
# Sample resource route with options:
# resources :products do

View File

@ -5,7 +5,7 @@ class CreateItems < ActiveRecord::Migration
t.string :url
t.string :author
t.text :content
t.time :published
t.datetime :published_at
t.references :feed

View File

@ -0,0 +1,9 @@
class AddErrorField < ActiveRecord::Migration
def up
add_column :feeds, :has_errors, :boolean, :default => false
end
def down
remove_column :feeds, :has_errors
end
end

View File

@ -11,13 +11,14 @@
#
# It's strongly recommended to check this file into your version control system.
ActiveRecord::Schema.define(:version => 20120407165240) do
ActiveRecord::Schema.define(:version => 20120407180851) do
create_table "feeds", :force => true do |t|
t.string "url"
t.string "title"
t.datetime "created_at", :null => false
t.datetime "updated_at", :null => false
t.datetime "created_at", :null => false
t.datetime "updated_at", :null => false
t.boolean "has_errors", :default => false
end
create_table "items", :force => true do |t|
@ -25,10 +26,10 @@ ActiveRecord::Schema.define(:version => 20120407165240) do
t.string "url"
t.string "author"
t.text "content"
t.time "published"
t.datetime "published_at"
t.integer "feed_id"
t.datetime "created_at", :null => false
t.datetime "updated_at", :null => false
t.datetime "created_at", :null => false
t.datetime "updated_at", :null => false
end
end

View File

@ -1,241 +0,0 @@
<!DOCTYPE html>
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color: #333;
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font-size: 28px;
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a {color: #03c}
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}
#page {
background-color: #f0f0f0;
width: 750px;
margin: 0;
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margin-right: auto;
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float: left;
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margin: 0;
margin-bottom: 10px;
font-size: 14px;
}
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background-color: #ffd;
border: 1px solid #fc0;
margin-left: -55px;
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}
#about-content table {
margin-top: 10px;
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font-size: 11px;
border-collapse: collapse;
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padding: 10px;
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