Class: USerializer::BaseSerializer

Inherits:
Object
  • Object
show all
Defined in:
lib/userializer/base_serializer.rb

Class Attribute Summary collapse

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(obj, opts = {}) ⇒ BaseSerializer 



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# File 'lib/userializer/base_serializer.rb', line 43

def initialize(obj, opts = {})
  @obj = obj
  @opts = opts
  @meta = opts[:meta]
  @except = Set.new([opts[:except]].flatten.compact)
  @only = Set.new([opts[:only]].flatten.compact)

  @root_key = (opts[:root] || ActiveSupport::Inflector.underscore(
    obj.class.name
  ).split('/').last).to_sym
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(mth) ⇒ Object 



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# File 'lib/userializer/base_serializer.rb', line 98

def method_missing(mth); @obj.send(mth); end

Class Attribute Details

.attrs ⇒ Object

Returns the value of attribute attrs.



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# File 'lib/userializer/base_serializer.rb', line 36

def attrs
  @attrs
end

.relations ⇒ Object

Returns the value of attribute relations.



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# File 'lib/userializer/base_serializer.rb', line 36

def relations
  @relations
end

Instance Attribute Details

#meta ⇒ Object (readonly)

Returns the value of attribute meta.



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# File 'lib/userializer/base_serializer.rb', line 39

def meta
  @meta
end

#obj ⇒ Object (readonly) Also known as: object

Returns the value of attribute obj.



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# File 'lib/userializer/base_serializer.rb', line 39

def obj
  @obj
end

#opts ⇒ Object (readonly)

Returns the value of attribute opts.



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# File 'lib/userializer/base_serializer.rb', line 39

def opts
  @opts
end

Class Method Details

.attributes(*attrs, &block) ⇒ Object 



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# File 'lib/userializer/base_serializer.rb', line 15

def attributes(*attrs, &block)
  attrs = attrs.first if attrs.first.class.is_a?(Array)
  opts = attrs.last.is_a?(Hash) ? attrs.pop : {}

  attrs.each { |attr| @attrs[attr] = Attribute.new(attr, opts, block) }
end

.has_many(*attrs) ⇒ Object 



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# File 'lib/userializer/base_serializer.rb', line 29

def has_many(*attrs)
  attrs = attrs.first if attrs.first.class.is_a?(Array)
  opts = attrs.last.is_a?(Hash) ? attrs.pop : {}

  attrs.each { |attr| @relations[attr] = HasMany.new(attr, opts) }
end

.has_one(*attrs) ⇒ Object 



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# File 'lib/userializer/base_serializer.rb', line 22

def has_one(*attrs)
  attrs = attrs.first if attrs.first.class.is_a?(Array)
  opts = attrs.last.is_a?(Hash) ? attrs.pop : {}

  attrs.each { |attr| @relations[attr] = HasOne.new(attr, opts) }
end

.inherited(subclass) ⇒ Object 



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# File 'lib/userializer/base_serializer.rb', line 10

def inherited(subclass)
  subclass.attrs = self.attrs.dup || { id: Attribute.new(:id, {}, nil) }
  subclass.relations = self.relations.dup || {}
end

Instance Method Details

#merge_root(res, key, single, opts) ⇒ Object 



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# File 'lib/userializer/base_serializer.rb', line 66

def merge_root(res, key, single, opts)
  if single
    res[key] = serializable_hash(opts)
  else
    res[key] ||= []

    id = @obj.id

    if res[key].detect { |v| id && v[:id] == id }
      return
    else
      res[key] << serializable_hash(opts)
    end
  end

  _relations.each { |rel| rel.merge_root(res, self, opts) }
end

#serializable_hash(opts) ⇒ Object 



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# File 'lib/userializer/base_serializer.rb', line 55

def serializable_hash(opts)
  res = {}

  _attributes.each { |attr| attr.merge_attributes(res, self, opts) }
  _relations.each do |rel|
    rel.merge_attributes(res, self, opts)
  end

  res
end

#to_hash ⇒ Object 



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# File 'lib/userializer/base_serializer.rb', line 84

def to_hash
  res = {}

  merge_root(res, @root_key, true, @opts.slice(:scope))

  res[:meta] = @meta if @meta

  res
end

#to_json ⇒ Object 



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# File 'lib/userializer/base_serializer.rb', line 94

def to_json
  Oj.dump(to_hash, mode: :compat)
end