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hike_event.rb
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hike_event.rb
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require 'httparty'
require 'tempfile'
require 'rmagick'
class HikeEvent < ApplicationRecord
has_one_attached :image, dependent: :destroy
before_create :generate_image
before_destroy :purge_image
def image_url
Cloudinary::Utils.cloudinary_url(self.image.key)
end
def generate_image
res = HTTParty.get('https://api.tomtom.com/map/1/staticimage', query: {
key: ENV['TOMTOM_API_KEY'],
layer: 'basic',
style: 'main',
format: 'png',
center: "#{self.lat},#{self.lng}",
width: '1024',
height: '336',
zoom: '12',
});
if res.code == 200
Tempfile.create do |tmp|
File.open(tmp.path, 'w+b') do |file|
file.write(res);
file.rewind;
file.close;
end
withPin = Magick::Image.read(tmp.path).first.composite(Magick::Image.read('assets/pin.png').first, Magick::CenterGravity, Magick::OverCompositeOp)
withPin.write(tmp.path)
self.image.attach(io: File.open(tmp.path), filename: 'pin.png')
end
end
end
def purge_image
self.image.purge
end
end