Module: CouchRest::Model::Persistence

Extended by:
ActiveSupport::Concern
Included in:
Base
Defined in:
lib/couchrest/model/persistence.rb

Instance Method Summary collapse

Instance Method Details

#create(options = {}) ⇒ Object

Create the document. Validation is enabled by default and will return false if the document is not valid. If all goes well, the document will be returned.



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# File 'lib/couchrest/model/persistence.rb', line 9

def create(options = {})
  return false unless perform_validations(options)
  _run_create_callbacks do
    _run_save_callbacks do
      set_unique_id if new? && self.respond_to?(:set_unique_id)
      result = database.save_doc(self)
      ret = (result["ok"] == true) ? self : false
      @changed_attributes.clear if ret && @changed_attributes
      ret
    end
  end
end

#create!(options = {}) ⇒ Object

Creates the document in the db. Raises an exception if the document is not created properly.



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# File 'lib/couchrest/model/persistence.rb', line 24

def create!(options = {})
  self.class.fail_validate!(self) unless self.create(options)
end

#destroyObject

Deletes the document from the database. Runs the :destroy callbacks.



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# File 'lib/couchrest/model/persistence.rb', line 58

def destroy
  _run_destroy_callbacks do
    result = database.delete_doc(self)
    if result['ok']
      @_destroyed = true
      self.freeze
    end
    result['ok']
  end
end

#destroyed?Boolean

Returns:

  • (Boolean)


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# File 'lib/couchrest/model/persistence.rb', line 69

def destroyed?
  !!@_destroyed
end

#persisted?Boolean

Returns:

  • (Boolean)


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# File 'lib/couchrest/model/persistence.rb', line 73

def persisted?
  !new? && !destroyed?
end

#reloadObject

Reloads the attributes of this object from the database. It doesn't override custom instance variables.

Returns self.



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# File 'lib/couchrest/model/persistence.rb', line 94

def reload
  prepare_all_attributes(database.get(id), :directly_set_attributes => true)
  self
end

#save(options = {}) ⇒ Object

Trigger the callbacks (before, after, around) and save the document



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# File 'lib/couchrest/model/persistence.rb', line 46

def save(options = {})
  self.new? ? create(options) : update(options)
end

#save!Object

Saves the document to the db using save. Raises an exception if the document is not saved properly.



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# File 'lib/couchrest/model/persistence.rb', line 52

def save!
  self.class.fail_validate!(self) unless self.save
  true
end

#update(options = {}) ⇒ Object

Trigger the callbacks (before, after, around) only if the document isn't new



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# File 'lib/couchrest/model/persistence.rb', line 30

def update(options = {})
  raise "Cannot save a destroyed document!" if destroyed?
  raise "Calling #{self.class.name}#update on document that has not been created!" if new?
  return false unless perform_validations(options)
  return true if !self.disable_dirty && !self.changed?
  _run_update_callbacks do
    _run_save_callbacks do
      result = database.save_doc(self)
      ret = result["ok"] == true
      @changed_attributes.clear if ret && @changed_attributes
      ret
    end
  end
end

#update_attributes(hash) ⇒ Object

Update the document's attributes and save. For example:

doc.update_attributes :name => "Fred"

Is the equivilent of doing the following:

doc.attributes = { :name => "Fred" }
doc.save


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# File 'lib/couchrest/model/persistence.rb', line 85

def update_attributes(hash)
  update_attributes_without_saving hash
  save
end