Module: Amfetamine::QueryMethods

Included in:
Base
Defined in:
lib/amfetamine/query_methods.rb

Defined Under Namespace

Modules: ClassMethods

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object

Base method for finding objects Should this be refactored to a different class that checks if cached and returns object? Caching methods are called here ONLY.



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# File 'lib/amfetamine/query_methods.rb', line 8

def self.included(base)
  base.extend ClassMethods
end

Instance Method Details

#clean_cache! ⇒ Object 



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# File 'lib/amfetamine/query_methods.rb', line 148

def clean_cache!
  if cacheable?
    cache.delete(singular_path)
    cache.delete(rest_path)
    belongs_to_relationships.each do |r|
      cache.delete(r.singular_path)
      cache.delete(r.rest_path)
      condition_keys = cache.get("#{r.rest_path}_conditions") || []
      condition_keys.each do |cc|
        cache.delete(r.rest_path + cc)
      end
    end
    condition_keys = cache.get("#{rest_path}_conditions") || []
    condition_keys.each do |cc|
      cache.delete(rest_path + cc)
    end
    Amfetamine.logger.info "Cleaned cache for #{self.class_name} with ID #{self.id}"
  end
end

#destroy ⇒ Object 



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# File 'lib/amfetamine/query_methods.rb', line 133

def destroy
  if self.new?
    return false
  end

  path = self.belongs_to_relationship? ? belongs_to_relationships.first.singular_path : singular_path
  response = self.class.handle_request(:delete, path)

  if handle_response(response)
    clean_cache!
    self.notsaved = true # Because its a new object if the server side got deleted
    self.id = nil # Not saved? No ID.
  end
end

#new? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/amfetamine/query_methods.rb', line 175

def new?
  @notsaved
end

#save ⇒ Object 



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# File 'lib/amfetamine/query_methods.rb', line 96

def save
  if !valid?
    return false
  end

  run_callbacks(:save) do
    response =
      if self.new?
        path = self.belongs_to_relationship? ? belongs_to_relationships.first.rest_path : rest_path
        self.class.handle_request(:post, path, {:body => {class_name.to_sym => self.to_hash}})
      else
        # Needs cleaning up, also needs to work with multiple belongs_to relationships (optional, I guess)
        path = self.belongs_to_relationship? ? belongs_to_relationships.first.singular_path : singular_path
        self.class.handle_request(:put, path, {:body => {class_name.to_sym => self.to_hash}})
      end

    if handle_response(response)
      begin
        update_attributes_from_response(response[:body])
      ensure
        clean_cache!
      end

      path = self.belongs_to_relationship? ? belongs_to_relationships.first.singular_path : singular_path
      self.cache_key = path

      if self.cacheable?
        cache.set(path, self.to_cacheable)
      else
        true # return true for successful updates
      end
    else
      false
    end
  end
end

#to_cacheable ⇒ Object 



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# File 'lib/amfetamine/query_methods.rb', line 179

def to_cacheable
  {
    :status => :success,
    :body => {
      class_name.to_sym => self.attributes
    }
  }
end

#update_attributes(attrs) ⇒ Object 



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# File 'lib/amfetamine/query_methods.rb', line 168

def update_attributes(attrs)
  return true if attrs.all? { |k,v| self.send(k) == v } # Don't update if no attributes change
  attrs.each { |k,v| self.send("#{k}=", v) }
  self.save
end