Class: Photo

Inherits:
ApplicationRecord show all
Defined in:
app/models/photo.rb

Constant Summary collapse

PER_PAGE = 
20

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.creation_parameters ⇒ Object 



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# File 'app/models/photo.rb', line 30

def self.creation_parameters
  entity_parameters + %i(album_id)
end

.entity_parameters ⇒ Object 



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# File 'app/models/photo.rb', line 26

def self.entity_parameters
  %i(image name description)
end

.page_for_administration(page = 1) ⇒ Object

Parameters:

  • page (Integer) (defaults to: 1) 


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# File 'app/models/photo.rb', line 17

def self.page_for_administration(page = 1)
  ordered_by_priority.page(page).per(PER_PAGE)
end

.page_for_visitors(page = 1) ⇒ Object

Parameters:

  • page (Integer) (defaults to: 1) 


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# File 'app/models/photo.rb', line 22

def self.page_for_visitors(page = 1)
  ordered_by_priority.page(page).per(PER_PAGE)
end

Instance Method Details

#change_priority(delta) ⇒ Object

Parameters:

  • delta (Integer) 


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# File 'app/models/photo.rb', line 35

def change_priority(delta)
  new_priority = priority + delta
  adjacent     = Photo.siblings(self).find_by(priority: new_priority)
  if adjacent.is_a?(Photo) && (adjacent.id != id)
    adjacent.update!(priority: priority)
  end
  update(priority: new_priority)

  Photo.siblings(self).map { |e| [e.id, e.priority] }.to_h
end