Paginate with Rails 2.0.2 question

rubyonrails-talk
1

Hi,

So I'm using @post_pages, @posts = paginate :posts, :per_page => 10 to paginate.

But I have rails 2.0.2 on my VPS. Now this version of paginate throws an error. What happened to classic pagination and what is done now?

Thanks,

Ron

2

Ron wrote:

Hi,

So I'm using @post_pages, @posts = paginate :posts, :per_page => 10 to paginate.

But I have rails 2.0.2 on my VPS. Now this version of paginate throws an error. What happened to classic pagination and what is done now?

Became a plugin called: classic_pagination

3

Hi James,

Thanks...but I tried that. I did: sudo ruby plugin install svn://errtheblog.com/svn/plugins/

Now I'm getting:

/usr/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/ dependencies.rb:478:in `const_missing': uninitialized constant Rails::Plugin::Err (NameError)   from /home/ron/ic/vendor/plugins/plugins/acts_as_cached/init.rb:2:in `evaluate_init_rb'   from /usr/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/rails/plugin.rb: 79:in `evaluate_init_rb'   from /usr/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/ active_support/core_ext/kernel/reporting.rb:11:in `silence_warnings'   from /usr/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/rails/plugin.rb: 75:in `evaluate_init_rb'   from /usr/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/rails/plugin.rb: 39:in `load'   from /usr/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/rails/plugin/ loader.rb:33:in `load_plugins'   from /usr/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/rails/plugin/ loader.rb:32:in `load_plugins'   from /usr/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/initializer.rb: 189:in `load_plugins'    ... 22 levels...   from /usr/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/ active_support/dependencies.rb:496:in `require'   from /usr/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/server.rb: 39   from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'   from script/server:3

Now that I look at it, maybe I didn't specify the whole path. It seems to have installed 3 or 4 plugins. Not sure how I would uninstall them and just install the classic_pagination plugin. One of them must be incompatible with 2.0.2

Ron

4

Why don't you use will_paginate plugin.

5

will_peginate is cool. but if you are converting ur app to rails 2.x you may need to look classic_pegination.

6

I found that converting to will_paginate to be so easy it confused me. I was looking for more work to do and didn't realize I was done. There's a railscast on it somewhere.

F

7

will_paginate rocks. As for removing the plugin, just remove the plugin from the vendor/plugins directory. That should do the trick. I've used both and they work well.

Serge

8

I have, I think, gotten the gem. The files "will_paginate" and "will_paginate.rb" exist in my vendor/plugins/will_paginate directory. I still get the "undefined method 'paginate'" message when I try to load the page that's supposed to use it. Another posting somewhere else said I needed to add "require 'will_paginate'" to my environment.rb, and I did that, with no change in the result. I'm not sure if it should be necessary, but I am restarting the server every time I make a change.

All I'm really trying to do is use AWDWR to learn about Rails, and I wasn't bright enough to install the downrev Rails (the previous layer of the onion was "scaffold"). If uninstalling 2.0.2, and installing 1.something (what a pain) really is the only way to use AWDWR, I guess I can, but this makes the whole business look pretty fragile, which I thought was one of the main things RoR was *not* supposed to be.

9

Another vote for will_paginate...

get_order and get_filter are application helpers in my app, and I keep a short list of user preferences (like their current filter, and current sort preferences) in the session...

  def index     order = get_order('projectview', 'proj_name')     cond = get_filter('project', 'scenario')

    # retrieve the data     @projectviews = Projectview.paginate :page => params[:page], :per_page => session[:userpref].page_len, :order => order, :conditions => cond

    respond_to do |format|       format.html       format.xml { render :xml => @projectviews }     end   end

10

I have, I think, gotten the gem. The files "will_paginate" and "will_paginate.rb" exist in my vendor/plugins/will_paginate directory. I still get the "undefined method 'paginate'" message when I try to load the page that's supposed to use it. Another posting somewhere else said I needed to add "require 'will_paginate'" to my environment.rb, and I did that, with no change in the result. I'm not sure if it should be necessary, but I am restarting the server every time I make a change.

will_paginate is great but is not a drop-in replacement for what was
in rails 1.2 (classic_pagination does that)

All I'm really trying to do is use AWDWR to learn about Rails, and I wasn't bright enough to install the downrev Rails (the previous layer of the onion was "scaffold"). If uninstalling 2.0.2, and installing 1.something (what a pain) really is the only way to use AWDWR, I guess I can, but this makes the whole business look pretty fragile, which I thought was one of the main things RoR was *not* supposed to be.

Trying to follow instructions written for a previous version of a
framework/application is never going to be fun :slight_smile:

Fred

11

If you're just wanting to follow AWDWR, just don't use any pagination. You only add 4 items...

Instead of @post_pages, @posts = paginate :posts, :per_page => 10, just do @posts = Post.find(:all)

If you need pagination, learn will_paginate (it works almost exactly like 'find'). If you're just getting your feet wet, focus on more important things. You can paginate when you have stuff that's worth paginating. :slight_smile:

-Kyle