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POIntegrate Postgresql database with Ruby Application
 

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    <p>I just started building my very first Ruby on Rails application and in order for me to host it on heroku I have change my database setting in my application. I did just that by changing the database.yml file in my application. This is what I have in it now.</p> <pre><code># SQLite version 3.x # gem install sqlite3-ruby (not necessary on OS X Leopard) development: adapter:postgresql encoding:unicode database:dezirus_dev pool:5 host:localhost username:postgres password: port:5432 # timeout: 5000 # Warning: The database defined as "test" will be erased and # re-generated from your development database when you run "rake". # Do not set this db to the same as development or production. test: adapter:postgresql encoding:unicode database:dezirus_test pool:5 username:postgres password: host:localhost port:5432 production: adapter:postgresql encoding:unicode database:dezirus pool:5 username:postgres password: host:localhost port:5432 </code></pre> <p>When i try to rake the DB this is the error I get.</p> <pre><code>RAHMAN@IMLDEV1-LT ~/rails-projects/dezirus $ rake db:migrate --trace rake aborted! no such file to load -- pg /usr/lib/ruby/gems/1.8/gems/bundler-1.0.22/lib/bundler/runtime.rb:68:in `require' /usr/lib/ruby/gems/1.8/gems/bundler-1.0.22/lib/bundler/runtime.rb:68:in `require' /usr/lib/ruby/gems/1.8/gems/bundler-1.0.22/lib/bundler/runtime.rb:66:in `each' /usr/lib/ruby/gems/1.8/gems/bundler-1.0.22/lib/bundler/runtime.rb:66:in `require' /usr/lib/ruby/gems/1.8/gems/bundler-1.0.22/lib/bundler/runtime.rb:55:in `each' /usr/lib/ruby/gems/1.8/gems/bundler-1.0.22/lib/bundler/runtime.rb:55:in `require' /usr/lib/ruby/gems/1.8/gems/bundler-1.0.22/lib/bundler.rb:122:in `require' /home/RAHMAN/rails-projects/dezirus/config/application.rb:7 /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require' /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `require' /home/RAHMAN/rails-projects/dezirus/Rakefile:4 /usr/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/rake_module.rb:25:in `load' /usr/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/rake_module.rb:25:in `load_rakefile' /usr/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:501:in `raw_load_rakefile' /usr/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:82:in `load_rakefile' /usr/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling' /usr/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:81:in `load_rakefile' /usr/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:65:in `run' /usr/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling' /usr/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:63:in `run' /usr/lib/ruby/gems/1.8/gems/rake-0.9.2.2/bin/rake:33 /usr/bin/rake:23:in `load' /usr/bin/rake:23 </code></pre> <p>Please note that the database was prebuilt using postgreSQL and i already have my tables, primary and foreign keys set. I'm not sure if maybe this is why its refusing to work or not. Any help would be really appreciated. Thanks </p>
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    1. CODid you install the pg gem? Is posgresql actually running? You need both.
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