Module: Harpy::Resource

Extended by:
ActiveSupport::Concern
Included in:
Collection
Defined in:
lib/harpy/resource.rb

Defined Under Namespace

Modules: ClassMethods

Class Method Summary collapse

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args) ⇒ Object (private) 



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# File 'lib/harpy/resource.rb', line 238

def method_missing(method, *args)
  key = method.to_s
  if persisted? && !@attrs.has_key?(key)
    super
  elsif key=~/[\]=]\z/
    super
  else
    @attrs[key]
  end
end

Class Method Details

.from_url(hash) ⇒ Object 



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# File 'lib/harpy/resource.rb', line 21

def self.from_url(hash)
  results = {}
  hash.each do |klass, urls|
    results[klass] = Harpy.client.get [*urls]
  end
  Harpy.client.run results.values.flatten
  results.each do |klass, requests|
    requests.collect! do |request|
      klass.send :from_url_handler, request.response
    end
  end
  results
end

Instance Method Details

#==(other) ⇒ Object Also known as: eql? 



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# File 'lib/harpy/resource.rb', line 199

def ==(other)
  other.equal?(self) || (urn && other.instance_of?(self.class) && other.urn == urn)
end

#as_json(*args) ⇒ Object 



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# File 'lib/harpy/resource.rb', line 140

def as_json(*args)
  hash = @attrs.dup
  hash.delete "link"
  hash.delete "urn"
  hash
end

#attributes=(attrs) ⇒ Object 



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# File 'lib/harpy/resource.rb', line 130

def attributes=(attrs)
  attrs.each do |key, value|
    if respond_to? "#{key}="
      send "#{key}=", value
    else
      @attrs[key] = value
    end
  end
end

#destroy ⇒ Object

Raises:



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# File 'lib/harpy/resource.rb', line 159

def destroy
  raise Harpy::UrlRequired unless url
  run_callbacks :destroy do
    process_response Harpy.client.delete(url), :destroy
  end
end

#has_key?(key) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/harpy/resource.rb', line 191

def has_key?(key)
  @attrs.has_key? key.to_s
end

#hash ⇒ Object 



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# File 'lib/harpy/resource.rb', line 195

def hash
  urn.hash
end

#id ⇒ Object 



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# File 'lib/harpy/resource.rb', line 179

def id
  @attrs["urn"].split(":").last if @attrs["urn"]
end

#initialize(attrs = nil) ⇒ Object 



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# File 'lib/harpy/resource.rb', line 125

def initialize(attrs = nil)
  @attrs = {}
  self.attributes = attrs || {}
end

#inspect ⇒ Object 



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# File 'lib/harpy/resource.rb', line 187

def inspect
  "<#{self.class.name} @attrs:#{@attrs.inspect} @errors:#{errors.full_messages.inspect} persisted:#{persisted?}>"
end

#link(rel) ⇒ Object 



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# File 'lib/harpy/resource.rb', line 166

def link(rel)
  link = (@attrs["link"]||[]).detect{|l| l["rel"]==rel.to_s}
  link["href"] if link
end

#persisted? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/harpy/resource.rb', line 183

def persisted?
  @attrs["urn"].present?
end

#save ⇒ Object 



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# File 'lib/harpy/resource.rb', line 147

def save
  if valid?
    run_callbacks :save do
      json = Yajl::Encoder.encode as_json
      raise BodyToBig, "Size: #{json.bytesize} bytes (max 1MB)" if json.bytesize > 1.megabyte
      persisted? ? update(json) : create(json)
    end
  else
    false
  end
end

#url ⇒ Object 



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# File 'lib/harpy/resource.rb', line 171

def url
  link "self"
end

#url_collection ⇒ Object 



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# File 'lib/harpy/resource.rb', line 175

def url_collection
  Harpy.entry_point.resource_url self.class.resource_name
end