merbjedi

[jc@macbookpro ~/Merb/whitelabel_classifieds]# thor merb:gem:install
Beginning transaction
Installing extlib-0.9.9
Installing abstract-1.0.0
Installing erubis-2.6.2
Installing rake-0.8.3
Installing json_pure-1.1.3
Installing rspec-1.1.11
Installing rack-0.4.0
Installing mime-types-1.15

merbjedi

[jc@macbookpro ~/Merb/whitelabel_classifieds]# thor merb:gem:install
Beginning transaction
Installing extlib-0.9.9
Installing abstract-1.0.0
Installing erubis-2.6.2
Installing rake-0.8.3
Installing json_pure-1.1.3
Installing rspec-1.1.11
Installing rack-0.4.0
Installing mime-types-1.15

merbjedi

[jc@macbookpro ~/Merb/whitelabel_classifieds]# thor merb:gem:install
Beginning transaction
Installing extlib-0.9.9
Installing abstract-1.0.0
Installing erubis-2.6.2
Installing rake-0.8.3
Installing json_pure-1.1.3
Installing rspec-1.1.11
Installing rack-0.4.0
Installing mime-types-1.15

merbjedi

[jc@macbookpro ~/Merb/whitelabel_classifieds]# thor merb:gem:install
Beginning transaction
Installing extlib-0.9.9
Installing abstract-1.0.0
Installing erubis-2.6.2
Installing rake-0.8.3
Installing json_pure-1.1.3
Installing rspec-1.1.11
Installing rack-0.4.0
Installing mime-types-1.15

merbjedi

sudo gem update merb # install 1.0.6
cd ~/your/project
rm -Rf tasks/merb.thor
merb-gen thor # installs new merb dependency tasks
thor merb:gem:install # syncs all dependencies defined in config/dependencies.rb

merbjedi

[jc@macbookpro ~/Merb/whitelabel_classifieds]# thor merb:gem:install
Beginning transaction
Installing merb-core-1.0.6
- Successfully uninstalled merb-core-1.0.5
Installing merb-action-args-1.0.6
- Successfully uninstalled merb-action-args-1.0.5
Installing merb-assets-1.0.6
- Successfully uninstalled merb-assets-1.0.5
Installing merb-cache-1.0.6
- Successfully uninstalled merb-cache-1.0.5

merbjedi

Running a simple loop in Datamapper with a has n relationship (Post has n 
pictures an integer property pictures_count).

Post.all.each do |p|
  p.pictures_count = p.pictures.count
  p.save
end

 ~ SELECT COUNT(*) FROM `pictures` WHERE (`post_id` IN (1))
 ~ SELECT `description_html`, `description_source`, `id` FROM `posts` WHERE 

merbjedi

[jc@macbookpro ~]# gem --version
1.3.1
[jc@macbookpro ~]# ruby --version
ruby 1.8.7 (2008-08-11 patchlevel 72) [i686-darwin9]
[jc@macbookpro ~]# sudo gem install nokogiri
Building native extensions.  This could take a while...
ERROR:  Error installing nokogiri:
	ERROR: Failed to build gem native extension.

merbjedi

# dependencies are generated using a strict version, don't forget to edit the dependency versions when upgrading.
merb_gems_version = "1.0.7.1"
dm_gems_version   = "0.9.9"

# For more information about each component, please read http://wiki.merbivore.com/faqs/merb_components
dependency "merb-action-args", merb_gems_version
dependency "merb-assets", merb_gems_version  
dependency "merb-cache", merb_gems_version   
dependency "merb-helpers", merb_gems_version 
dependency "merb-mailer", merb_gems_version  

merbjedi

require "erb"

Gem.pre_install_hooks.push(proc do |installer|
  $INSTALLING << installer.spec
  
  unless File.file?(installer.bin_dir / "common.rb")
    FileUtils.mkdir_p(installer.bin_dir)
    FileUtils.cp(File.dirname(__FILE__) / "common.rb", installer.bin_dir / "common.rb")
  end