Fixed some bugs

README.rdoc

@@ -60,8 +60,7 @@ It creates and connects the Tweet, Link, User and Tag model classes.
     result = search.hashtag(@tag.name)
 
     curr_page = 0
-    found_old_tweet = false
-    while curr_page < 2 && !found_old_tweet do
+    while curr_page < 2 do
       result.each do |item|
         parsed_tweet_hash = Tweet.parse(item)
         next if Tweet.find_by_tweet_id(parsed_tweet_hash[:tweet_id])
@@ -96,6 +95,8 @@ It creates and connects the Tweet, Link, User and Tag model classes.
           t = t[1..-1].downcase
           tag = Tag.find_or_create_by(:name => t)
           tweet.tags << tag unless tweet.tags.include?(tag)
+          user.used_tags << tag unless user.used_tags.include?(tag)
+          user.save
         when /https?:.+/
           link = Link.find_or_create_by(:url => t)
           tweet.links << link.redirected_link || link
@@ -135,6 +136,7 @@ to
 ==== app/views/tags/show.html.erb
 
 Add a button to the view:
+
   <%= button_to "Search", [:search, @tag], :method => :get %>
 
 Test the application now by open a browser http://localhost:3000/tags
@@ -216,6 +218,8 @@ To only return the real URLs we can use rules, which is a bit similar to scope i
 This means that it will group all links under the rule :real which does not have a redirected_link
 To return all those nodes, use the class method #real.
 
+Btw, the Neo4j::Rails::Model#all method is also implemented as a rule.
+
 ==== app/controllers/links_controller.rb
 
  def index
@@ -399,7 +403,7 @@ Add the following at the bottom of the file
 
 ==== app/assets/javascripts/application.js
 
-Make sure things are loading in the correct order
+Make sure things are loading in the correct order.
 Add a require d3 before requiring everything else.
 
   //= require jquery
@@ -410,15 +414,15 @@ Add a require d3 before requiring everything else.
 
 ==== app/assets/stylesheets/application.css
 
-circle.node {
-    stroke: #fff;
-    stroke-width: 1.5px;
-}
+  circle.node {
+      stroke: #fff;
+      stroke-width: 1.5px;
+  }
 
-line.link {
-    stroke: #999;
-    stroke-opacity: .6;
-}
+  line.link {
+      stroke: #999;
+      stroke-opacity: .6;
+  }
 
 ==== Test it
 
@@ -430,6 +434,14 @@ Open a browser http://localhost:3000/users and scroll down
 ==== app/views/users/show.erb
 Add the following before the link_to lines
 
+<p>
+  <b>Used tags</b>
+  <% @user.used_tags.each do |tag| %>
+    <%= link_to tag.name, tag %> <br/>
+  <% end %>
+</p>
+
+
 <p>
   <b>Knows:</b><br/>
   <% @knows.each do |user| %>

app/controllers/tags_controller.rb

@@ -90,8 +90,7 @@ def search
     result = search.hashtag(@tag.name)
 
     curr_page = 0
-    found_old_tweet = false
-    while curr_page < 10 && !found_old_tweet do
+    while curr_page < 15 do
       result.each do |item|
         parsed_tweet_hash = Tweet.parse(item)
         next if Tweet.find_by_tweet_id(parsed_tweet_hash[:tweet_id])
@@ -117,7 +116,6 @@ def parse_tweet(tweet, user)
       case t
         when /^@.+/
           t = t[1..-1].downcase
-          next if t.nil?
           other = User.find_or_create_by(:twid => t)
           user.knows << other unless t == user.twid || user.knows.include?(other)
           user.save
@@ -126,6 +124,8 @@ def parse_tweet(tweet, user)
           t = t[1..-1].downcase
           tag = Tag.find_or_create_by(:name => t)
           tweet.tags << tag unless tweet.tags.include?(tag)
+          user.used_tags << tag unless user.used_tags.include?(tag)
+          user.save
         when /https?:.+/
           link = Link.find_or_create_by(:url => t)
           tweet.links << link.redirected_link || link

app/controllers/tweets_controller.rb

@@ -2,7 +2,12 @@ class TweetsController < ApplicationController
   # GET /tweets
   # GET /tweets.json
   def index
-    @tweets = Tweet.all
+    query = params[:query]
+    if query && !query.empty?
+      @tweets = Tweet.all("text:#{query}", :type => :fulltext).paginate(:page => params[:page], :per_page => 10)
+    else
+      @tweets = Tweet.all.paginate(:page => params[:page], :per_page => 10)
+    end
 
     respond_to do |format|
       format.html # index.html.erb

app/controllers/users_controller.rb

@@ -90,4 +90,12 @@ def destroy
       format.json { head :ok }
     end
   end
+
+  def recommend
+    @user = User.find(params[:id])
+    my_tags = @user.used_tags.to_a
+
+    # find other users using these tags
+    other_people_tags = @user._java_node.outgoing(:knows).incoming(:knows).outgoing(:used_tags).depth(5).filter{|path| path.lastRelationship.rel_type == 'used_tags'}
+  end
 end

app/models/tweet.rb

@@ -5,6 +5,8 @@ class Tweet < Neo4j::Rails::Model
   property :tweet_id, :type => String
 
   index :tweet_id
+  index :date
+  index :text, :type => :fulltext
 
   has_n :tags
   has_n :mentions

app/views/tweets/index.html.erb

@@ -1,5 +1,13 @@
 <h1>Listing tweets</h1>
 
+
+  <%= form_for(:tweets, :method => :get) do |f| %>
+  <div class="field">
+    <%= text_field_tag :query %>
+      <%= f.submit "Search" %>
+  </div>
+  <% end %>
+
 <table>
   <tr>
     <th>Text</th>
@@ -26,4 +34,6 @@
 
 <br />
 
+<%= will_paginate(@tweets) %>
+
 <%= link_to 'New Tweet', new_tweet_path %>

app/views/users/show.html.erb

@@ -10,6 +10,13 @@
   <%= @user.link %>
 </p>
 
+<p>
+  <b>Used tags</b>
+  <% @user.used_tags.each do |tag| %>
+    <%= link_to tag.name, tag %> <br/>
+  <% end %>
+</p>
+
 
 <p>
   <b>Knows:</b><br/>