Class: Onsi::Params

Inherits:
Object
  • Object
show all
Defined in:
lib/onsi/params.rb

Defined Under Namespace

Classes: MissingReqiredAttribute, RelationshipNotFound

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(attributes, relationships) ⇒ Params

Returns a new instance of Params.



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# File 'lib/onsi/params.rb', line 66

def initialize(attributes, relationships)
  @attributes = attributes
  @relationships = relationships
end

Instance Attribute Details

#attributes ⇒ Object (readonly)

Returns the value of attribute attributes.



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# File 'lib/onsi/params.rb', line 64

def attributes
  @attributes
end

#relationships ⇒ Object (readonly)

Returns the value of attribute relationships.



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# File 'lib/onsi/params.rb', line 64

def relationships
  @relationships
end

Class Method Details

.parse(params, attributes = [], relationships = []) ⇒ Object 



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# File 'lib/onsi/params.rb', line 22

def parse(params, attributes = [], relationships = [])
  data = params.require(:data)
  data.require(:type)
  attrs = permit_attributes(data, attributes)
  relas = permit_relationships(data, relationships)
  new(attrs, relas)
end

Instance Method Details

#fetch(key, default = nil) ⇒ Object 



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# File 'lib/onsi/params.rb', line 75

def fetch(key, default = nil)
  attrs_hash[key] || default
end

#flatten ⇒ Object 



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# File 'lib/onsi/params.rb', line 71

def flatten
  attributes.to_h.merge(relationships.to_h).with_indifferent_access
end

#require(key) ⇒ Object 



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# File 'lib/onsi/params.rb', line 79

def require(key)
  value = attrs_hash[key]
  if value.nil?
    raise MissingReqiredAttribute.new("Missing attribute #{key}", key)
  end
  value
end

#safe_fetch(key) ⇒ Object 



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# File 'lib/onsi/params.rb', line 87

def safe_fetch(key)
  yield(@relationships[key])
rescue ActiveRecord::RecordNotFound
  raise RelationshipNotFound.new("Can't find relationship #{key}", key)
end