Deploying the Latest

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Picking up where I left off yesterday, I use these ./script/console methods to dump JSON documents describing recipe updates from the legacy Rails application:

# Traverse the linked list of recipe updates, building up the list
def update_list(recipe, list=[])
  if recipe.is_replacement?
    update_list(recipe.replacement_for,
                list + [{:id => recipe.uri.gsub(/\//, '-')}])
  else
    list + [{:id => recipe.uri.gsub(/\//, '-')}]
  end
end

# For every recipe update, dump a JSON update document that includes
# the entire linked list (from update_list)
RecipeUpdate.find(:all).
  reject { |update| update.successor.has_replacement? }.
  map {|update| {:type => "Update",
                 :name => update.successor.title.downcase,
                 :updates => update_list(update.successor).reverse } }.
  each do |update|
    filename = "/tmp/#{update[:name].gsub(/\s+/, '_')}_update.json"
    file = File.new(filename, "w+")
    file.write(update.to_json)
    file.close
  end

# For every group of similar recipes, dump a JSON document that
# includes the list.
RecipeGroup.find(:all).each do |group|
   alternate = { :type    => "Alternative",
                 :name    => group.name,
                 :recipes => group.recipes.map{|r| r.uri.gsub(/\//, '-')} }
   filename = "/tmp/#{group.name.gsub(/\s+/, '_')}_alternative.json"
   file = File.new(filename, "w+")
   file.write(alternate.to_json)
   file.close
 end

Similarly, this method dumps alternate preparations for recipes:

# For every group of similar recipes, dump a JSON document that
# includes the list.
RecipeGroup.find(:all).each do |group|
  alternate = { :type    => "Alternative",
                :name    => group.name,
                :recipes => group.recipes.map{|r| r.uri.gsub(/\//, '-')} }
  filename = "/tmp/#{group.name.gsub(/\s+/, '_')}_alternative.json"
  file = File.new(filename, "w+")
  file.write(alternate.to_json)
  file.close
end

I move those JSON into a new data seed directory:

cstrom@jaynestown:~/repos/eee-code$ mkdir couch/seed2
cstrom@jaynestown:~/repos/eee-code$ cd couch/seed2
cstrom@jaynestown:~/repos/eee-code/couch/seed2$ mv /tmp/*json .

Then I use my couch_docs gem to load the JSON into my local CouchDB database:

cstrom@jaynestown:~/repos/eee-code/couch/seed2$ couch-docs load . http://localhost:5984/eee

To make sure that everything is working I check the pizza dough recipe, which has been updated many times:



Yup, the updates are working. How about the alternate preparations?



Yup.

Last up tonight, I indulge in a little #yerdoinitwrong by manually copying the seed data over to the beta site. After loading it with couch-docs, I deploy with vlad:

cstrom@jaynestown:~/repos/eee-code$ rake vlad:stop_app
cstrom@jaynestown:~/repos/eee-code$ rake vlad:update vlad:migrate vlad:start_app

With that, I have my new features deployed: an updated recipe and a recipe with alternate preparations.