Module: PopulateMe::DocumentMixins::Callbacks

Included in:
PopulateMe::Document
Defined in:
lib/populate_me/document_mixins/callbacks.rb

Defined Under Namespace

Modules: ClassMethods

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/populate_me/document_mixins/callbacks.rb', line 76

def self.included(base)
  base.extend(ClassMethods)
  base.class_eval do
    [:save,:create,:update,:delete].each do |cb|
      before cb, :recurse_callback
      after cb, :recurse_callback
    end
    before :create, :ensure_id
    before :create, :ensure_position
    after :create, :ensure_not_new
    after :save, :snapshot
    before :delete, :ensure_delete_related
    before :delete, :ensure_delete_attachments
    after :delete, :ensure_new
  end
end

Instance Method Details

#ensure_delete_attachments ⇒ Object 



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# File 'lib/populate_me/document_mixins/callbacks.rb', line 66

def ensure_delete_attachments
  self.class.fields.each do |k,v|
    if v[:type]==:attachment
      self.attachment(k).delete_all
    end
  end
end

#ensure_delete_related ⇒ Object 



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# File 'lib/populate_me/document_mixins/callbacks.rb', line 54

def ensure_delete_related
  self.class.relationships.each do |k,v|
    if v[:dependent]
      klass = WebUtils.resolve_class_name v[:class_name]
      next if klass.nil?
      klass.admin_find(query: {v[:foreign_key]=>self.id}).each do |d|
        d.delete
      end
    end
  end
end

#ensure_id ⇒ Object 



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# File 'lib/populate_me/document_mixins/callbacks.rb', line 27

def ensure_id
  if self.id.nil?
    self.id = SecureRandom.hex
  end
  self
end

#ensure_new ⇒ Object 



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# File 'lib/populate_me/document_mixins/callbacks.rb', line 74

def ensure_new; self._is_new = true; end

#ensure_not_new ⇒ Object 



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# File 'lib/populate_me/document_mixins/callbacks.rb', line 34

def ensure_not_new; self._is_new = false; end

#ensure_position ⇒ Object 



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# File 'lib/populate_me/document_mixins/callbacks.rb', line 36

def ensure_position
  self.class.fields.each do |k,v|
    if v[:type]==:position
      return unless self.__send__(k).nil?
      values = if v[:scope].nil?
        self.class.admin_distinct k
      else
        self.class.admin_distinct(k, query: {
          v[:scope] => self.__send__(v[:scope])
        })
      end
      val = values.empty? ? 0 : (values.max + 1)
      self.set k => val
    end
  end
  self
end

#exec_callback(name) ⇒ Object 



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# File 'lib/populate_me/document_mixins/callbacks.rb', line 7

def exec_callback name
  name = name.to_sym
  return self if self.class.callbacks[name].nil?
  self.class.callbacks[name].each do |job|
    if job.respond_to?(:call)
      self.instance_exec name, &job
    else
      meth = self.method(job)
      meth.arity==1 ? meth.call(name) : meth.call
    end
  end
  self
end

#recurse_callback(name) ⇒ Object 



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# File 'lib/populate_me/document_mixins/callbacks.rb', line 21

def recurse_callback name
  nested_docs.each do |d|
    d.exec_callback name
  end
end