Trying to call methods from gems in a view, getting "no such file" error

I have just installed a base installatio开发者_StackOverflown of rails and have edited the main page to view some basic html and a link to create a new blog post via ruby in the corresponding 'erb' file. I am trying to add some additional ruby commands on this same page via <%= %> tags.

<h1>Hello, Rails!</h1> <%= link_to "My Blog", posts_path %>

<p>
<%= require 'rubygems' %>
<%= require 'simplegeo' %>

<%= SimpleGeo::Client.set_credentials('token', 'secret') %>
<%= a = SimpleGeo::Client.get_context(coordinates,coordinates); a %>
</p>

When I load this page , I get the following error: no such file to load -- simplegeo

Can someone point me in the right direction? Many thanks!

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In Rails 3, you need to add this gem to your "Gemfile" .. follow this: http://gembundler.com/rails3.html

Remove this completely.. Never do this in your views

<%= require 'rubygems' %>
<%= require 'simplegeo' %>

Once you restart your rails server, if you added "simplegeo" to your gemfile, it'll be auto-required.

Move this to your controller to start

SimpleGeo::Client.set_credentials('token', 'secret')
@simple_geo_client = SimpleGeo::Client.get_context(coordinates,coordinates)

Then in your view, you can access any variable that starts with @

To get started in Rails, check out http://railsforzombies.org/

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In rails 3.x, you use Bundler to specify gems. No need to require, especially in views.

Correct way is:

Open Gemfile Set/List required gems inside using format:

source :rubygems
gem "simplegeo"
gem "some_other_gem"

Run bundle install (or just bundle) command in console.

now restart your server and gems are auto required.

Check out Rails guide on how to start.

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Most probably you did not install Simplegeo gem properly, or did not attach it correctly in you IDE.