Added meta where and jquery observe field. Fixed members view.

Gemfile

@@ -11,6 +11,7 @@ gem "will_paginate", "~> 3.0.pre2"
 gem 'jquery-rails'
 gem 'simple_form'
 gem 'rails3_acts_as_paranoid'
+gem 'meta_where'
 
 group :development do
   gem 'annotate'

Gemfile.lock

@@ -46,6 +46,10 @@ GEM
       i18n (>= 0.4.0)
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
+    meta_where (1.0.4)
+      activerecord (~> 3.0.0)
+      activesupport (~> 3.0.0)
+      arel (~> 2.0.7)
     mime-types (1.16)
     mysql (2.8.1)
     polyglot (0.3.1)
@@ -97,6 +101,7 @@ DEPENDENCIES
   haml
   hirb
   jquery-rails
+  meta_where
   mysql
   prawn (<= 0.6.3)
   rails (= 3.0.7)

app/controllers/foodcoop/users_controller.rb

@@ -1,16 +1,18 @@
 class Foodcoop::UsersController < ApplicationController
 
   def index
+    @users = User.order(:nick.asc)
+
+    # if somebody uses the search field:
+    unless params[:query].blank?
+      @users = @users.where(({:first_name.matches => "%#{params[:query]}%"}) | ({:last_name.matches => "%#{params[:query]}%"}) | ({:nick.matches => "%#{params[:query]}%"}))
+    end
+
     # sort by ordergroups
-    if params[:sort_by_ordergroups]
-      @users = []
-      Ordergroup.find(:all, :order => "name").each do |group|
-        group.users.each do |user|
-          @users << user
-        end
-      end
-      @total = @users.size
-    else
+#    if params[:sort_by_ordergroups]
+#      @users = @users.joins(:ordergroup).order(:ordergroup => :name.asc) # Retunr dubbled entries, why?
+#    end
+
     # sort by nick, thats default
     if (params[:per_page] && params[:per_page].to_i > 0 && params[:per_page].to_i <= 100)
       @per_page = params[:per_page].to_i
@@ -18,19 +20,11 @@ class Foodcoop::UsersController < ApplicationController
       @per_page = 20
     end
 
-      # if somebody uses the search field:
-      unless params[:query].blank?
-        conditions = ["first_name LIKE ? OR last_name LIKE ? OR nick LIKE ?",
-          "%#{params[:query]}%", "%#{params[:query]}%", "%#{params[:query]}%"]
-      end
-
-      @total = User.count(:conditions => conditions)
-      @users = User.paginate(:page => params[:page], :per_page => @per_page, :conditions => conditions, :order => "nick", :include => :groups)
+    @users = @users.paginate(:page => params[:page], :per_page => @per_page)
 
     respond_to do |format|
-        format.html # index.html.erb
-        format.js { render :partial => "users" }
-      end
+      format.html # index.html.haml
+      format.js { render :layout => false } # index.js.erb
     end
   end
 

app/models/group.rb

@@ -8,6 +8,8 @@ class Group < ActiveRecord::Base
   validates_uniqueness_of :name
   validate :last_admin_on_earth, :on => :update
 
+  before_destroy :check_last_admin_group
+  
   # Returns true if the given user if is an member of this group.
   def member?(user)
     memberships.find_by_user_id(user.id)
@@ -18,15 +20,15 @@ class Group < ActiveRecord::Base
     User.all(:order => 'nick').reject { |u| users.include?(u) }
   end
 
+  protected
+
   # Check before destroy a group, if this is the last group with admin role
-  def before_destroy
+  def check_last_admin_group
     if self.role_admin == true && Group.find_all_by_role_admin(true).size == 1
       raise "Die letzte Gruppe mit Admin-Rechten darf nicht gelöscht werden"
     end
   end
     
-  protected
-  
   # validates uniqueness of the Group.name. Checks groups and ordergroups
   def validate
     errors.add(:name, "ist schon vergeben") if (group = Group.find_by_name(name) || group = Ordergroup.find_by_name(name)) && self != group

app/models/membership.rb

@@ -3,11 +3,15 @@ class Membership < ActiveRecord::Base
   belongs_to :user
   belongs_to :group
 
+  before_destroy :check_last_admin
+  
   # messages
   ERR_NO_ADMIN_MEMBER_DELETE = "Mitgliedschaft kann nicht beendet werden. Du bist die letzte Administratorin"
 
+  protected
+
   # check if this is the last admin-membership and deny
-  def before_destroy
+  def check_last_admin
     raise ERR_NO_ADMIN_MEMBER_DELETE if self.group.role_admin? && self.group.memberships.size == 1 && Group.find_all_by_role_admin(true).size == 1 
   end
 end

app/views/foodcoop/users/_users.html.haml

@@ -5,7 +5,7 @@
         %td
           = pagination_links_remote @users, :update => :users
         %td{:style => "text-align:right"}
-          - if @total > 20
+          - if @users.size > 20
             = items_per_page :update => :users
 %table.list
   %thead
@@ -17,7 +17,8 @@
       %th Bestellgruppe
       %th Arbeitsgruppe(n)
   %tbody
-    - for user in @users
+    - users = params[:sort_by_ordergroups] ? @users.sort { |a,b| a.ordergroup.name <=> b.ordergroup.name } : @users
+    - for user in users
       %tr{:class => cycle('even','odd', :name => 'users')}
         %td= link_to user.nick, user_message_path(user), :title => _('Send user an email')
         %td=h user.name if @current_user.role_admin? || user.settings["profile.nameIsPublic"] == '1'

app/views/foodcoop/users/index.html.haml

@@ -1,3 +1,14 @@
+- content_for :head do
+  :javascript
+    $(function() {
+      $('#query').observe_field(1, function() {
+        $('#user_search').submit();
+      });
+      $('#sort_by_ordergroups').click(function() {
+        $('#user_search').submit();
+      });
+    });
+
 %h1 Mitglieder der Foodcoop
 %p
   %i
@@ -13,20 +24,11 @@
   .column_content
     - unless params[:sort_by_ordergroups]
       #user_filter{:style => "float:left; margin-right:2em;"}
-        %form{:name=>"sform", :action=>"", :style=>"display:inline;"}
+        = form_tag foodcoop_users_path, :method => :get, :style=>"display:inline;", :id => 'user_search', :remote => true do
           %label{:for => 'article_name'} Suche nach Name:
-          = text_field_tag("query", params['query'], :size => 10 )
+          = text_field_tag(:query, params[:query], :size => 10 )
 
-        = observe_field 'query',  :frequency => 2, |
-          :before => "Element.show('loader')", |
-          :success => "Element.hide('loader')", |
-          :url => foodcoop_users_path, |
-          :update => :users, |
-          :with => 'query', |
-          :method => :get |
-    
-    =_ "Nach Bestellgruppen sortieren:"
-    - form_tag(foodcoop_users_path, :method => "get", :style=>"display:inline;") do
-      = check_box_tag :sort_by_ordergroups, 1, params[:sort_by_ordergroups], :onclick => "submit();"
+          Nach Bestellgruppen sortieren:
+          = check_box_tag :sort_by_ordergroups, 1, params[:sort_by_ordergroups]
     #users
       = render :partial => "users"

app/views/foodcoop/users/index.js.erb

@@ -0,0 +1 @@
+$('#users').html('<%= escape_javascript(render("users")) %>');

app/views/layouts/application.haml

@@ -8,14 +8,16 @@
     <!--[if lte IE 7]>
     = stylesheet_link_tag 'ie_hacks'
     <![endif]-->
-    = javascript_include_tag 'jquery.min', 'jquery-ui.min', 'jquery_ujs', 'jquery.tokeninput', 'application', 'ordering', :cache => "all_cached"
+    = javascript_include_tag 'jquery.min', 'jquery-ui.min', 'jquery_ujs', 'jquery.tokeninput', 'jquery.observe_field',
+     'application', 'ordering', :cache => "all_cached"
+    = csrf_meta_tag
     = yield(:head)
   %body
     #logininfo= render :partial => 'shared/loginInfo'
     
     #header
       #logo
-        - link_to root_path do
+        = link_to root_path do
           <span>food</span>soft
         %span{:style => "color:white; font-size:45%; letter-spacing: -1px;"}= Foodsoft.config[:name]
       #nav= render :partial => 'layouts/main_tabnav'

public/javascripts/jquery.observe_field.js

@@ -0,0 +1,39 @@
+// jquery.observe_field.js
+
+
+(function( $ ){
+
+  jQuery.fn.observe_field = function(frequency, callback) {
+
+    frequency = frequency * 1000; // translate to milliseconds
+
+    return this.each(function(){
+      var $this = $(this);
+      var prev = $this.val();
+
+      var check = function() {
+        var val = $this.val();
+        if(prev != val){
+          prev = val;
+          $this.map(callback); // invokes the callback on $this
+        }
+      };
+
+      var reset = function() {
+        if(ti){
+          clearInterval(ti);
+          ti = setInterval(check, frequency);
+        }
+      };
+
+      check();
+      var ti = setInterval(check, frequency); // invoke check periodically
+
+      // reset counter after user interaction
+      $this.bind('keyup click mousemove', reset); //mousemove is for selects
+    });
+
+  };
+
+})( jQuery );
+