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dm-is-slugDataMapper plugin for creating and slugs(permalinks).
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Installation> gem install dm-is-slug
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Creating a slug from propertyclass Post include DataMapper::Resource property :id, Serial property :title, String property :content, String # here we define that it should have a slug that uses title as the permalink # it will generate an extra slug property of String type, with the same size as title is :slug, :source => :title end
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Creating a slug from arbitrary methodsclass User include DataMapper::Resource property :id, Serial property :email, String property :password, String # we only want to strip out the domain name # and use only the email account name as the permalink def slug_for_email email.split("@").first end # here we define that it should have a slug that uses title as the permalink # it will generate an extra slug property of String type, with the same size as title is :slug, :source => :slug_for_email, :size => 255 end
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Scoped slugsclass Post include DataMapper::Resource property :id, Serial property :title, String property :content, String property :category, String # Same as above but slugs will be unique only within their category. is :slug, :source => :title, :slug => :category end
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Finding objects by slugpost = Post.first(:slug => "your_slug")
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DevelopmentIt’s recommended to use bundler in development.
gem install bundler ADAPTERS='in_memory yaml sqlite postgres mysql' bundle install --without quality
This will install all dependencies so that you could run specs.
bundle exec rake spec ADAPTER=sqlite