Module: ActiveRecord::Collections::Serialization::ClassMethods

Defined in:
lib/active_record/collections/serialization.rb

Instance Method Summary collapse

Instance Method Details

#from_hash(hash) ⇒ Object 



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# File 'lib/active_record/collections/serialization.rb', line 13

def from_hash(hash)
  hash.symbolize_keys! unless hash.is_a?(HashWithIndifferentAccess)

  kollektion = kollektion_from_hash(hash)
  kollektable = kollektable_from_hash(hash)
  collection = kollektion.new(kollektable)
  collection.select!(*hash[:select]) unless hash[:select].empty?
  collection.distinct! if hash[:distinct] == true

  collection.joins!(*hash[:joins]) unless hash[:joins].empty?
  collection.references!(*hash[:references]) unless hash[:references].empty?
  collection.includes!(*hash[:includes]) unless hash[:includes].empty?

  wheres = hash[:where].partition { |w| w.is_a?(Hash) }
  wheres.first.each do |wh|
    if wh.keys.first == :not
      collection.not!(wh[:not])
    else
      collection.where!(wh)
    end
  end
  collection.where!(*hash[:bind].map { |b| b[:value] }.unshift(wheres.last.join(" AND ").gsub(/\$\d/,'?'))) unless wheres.last.empty?

  collection.group!(hash[:group]) unless hash[:group].empty?
  collection.order!(hash[:order]) unless hash[:order].empty?

  collection.limit!(hash[:limit]) unless hash[:limit].nil?
  collection.offset!(hash[:offset]) unless hash[:offset].nil?

  collection
end

#from_json(json) ⇒ Object 



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# File 'lib/active_record/collections/serialization.rb', line 9

def from_json(json)
  from_hash JSON.load(json)
end

#kollektable_from_hash(hash) ⇒ Object 



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# File 'lib/active_record/collections/serialization.rb', line 53

def kollektable_from_hash(hash)
  kollektable = nil
  kollektable = hash[:collectable] if hash.has_key?(:collectable)
  kollektable = kollektable.constantize unless kollektable.is_a?(Class) || kollektable.nil?
  raise "Invalid collectable model: #{kollektable}" unless kollektable < ActiveRecord::Base
  kollektable
end

#kollektion_from_hash(hash) ⇒ Object 



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# File 'lib/active_record/collections/serialization.rb', line 45

def kollektion_from_hash(hash)
  kollektion = self
  kollektion = hash[:collection] if hash.has_key?(:collection) && !hash[:collection].nil?
  kollektion = kollektion.constantize unless kollektion.is_a?(Class)
  raise "Invalid collection class: #{kollektion}" unless kollektion <= ActiveRecord::Collection
  kollektion
end