has_one_photo
Uber simple Rails plugin giving a model a single attached photo per record. When a photo is saved to the model, sized photo files are placed in the specified path, based on the indicated sizes (see below).
Note: Only JPEG images are supported at this time.
Requirements
- ImageMagick
- MiniMagick (not RMagick)
Install
script/plugin install git://github.com/seven1m/has_one_photo.git
Setup
In the model:
class Person < ActiveRecord::Base
PHOTO_SIZES = {
:tn => '32x32',
:small => '75x75',
:medium => '150x150',
:large => '400x400'
}
has_one_photo :path => Rails.root + 'db/photos/people', :sizes => PHOTO_SIZES
end
In your controller(s), you need an action that calls send_photo(obj),
with "obj" being an instance of the record with the photo.
There are several ways to do this, the simplest of which may be:
class PeopleController < ApplicationController
# url looks like "/people/1/photo" and "/people/1/photo?size=small"
def photo
@person = Person.find params[:id]
send_photo @person
end
end
You'll also need a member action in your routes.rb:
map.resources :people, :member => {:photo => :get}
Prettier URLs
For an example of using a singular resource "Photo" for several resources, check out the OneBody project:
Usage
person.photo = file_like_object # form submission, File.open, etc.
# or
person.photo = 'http://example.com/tim.jpg'
person.rotate_photo('-90') # degrees
person.has_photo?
# => true
person.photo_path
# => 'db/photos/123.jpg'
person.photo = nil # deletes the photo file(s)