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binaryattraction/app/controllers/photos.rb

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class Photos < Application
before :logged_in?, :only => [ :new, :create, :delete ]
before :administrator?, :only => [ :delete ]
before :make_photo, :only => [ :new, :create ]
before :fetch_photo, :only => [ :show, :delete, :thumbnail ]
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def index
@page = params[:page].to_i
per_page = 24
@page_count = (Photo.count(:id).to_f / per_page.to_f).ceil
@photos = Photo.find :all, :order => 'id DESC', :limit => per_page, :offset => (per_page * @page)
if request.xhr?
partial 'photos/photo_browser'
else
render
end
end
def show
render
end
def new
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render
end
def create
if @photo.save
flash[:notice] = 'Great success'
redirect url(:photo, @photo)
else
render :new
end
end
def delete
raise NotAllowed unless request.xhr?
if current_user and current_user.administrator?
render
else
redirect '/'
end
end
def thumbnail
if @photo.exist?
w = params[:width].to_i
w = @photo.width if w == 0 or w > @photo.width
h = params[:height].to_i
h = @photo.height if h == 0 or h > @photo.height
w = h if h > w
send_data get_photo_version(w, w).to_blob, :filename => @photo.filename, :disposition => 'inline', :type => @photo.content_type
else
send_file Merb.root + '/public/images/image-missing.png', :disposition => 'inline'
end
end
protected
def make_photo
@photo = Photo.new params[:photo]
end
def fetch_photo
@photo = Photo.find params[:id]
raise NotFound unless @photo
end
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end