Created
January 31, 2011 18:12
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Carrierwave, DataMapper, & Sinatra starring in "Imagine the Possibilities"
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def is_ajax_request? | |
if respond_to? :content_type | |
if request.xhr? | |
true | |
else | |
false | |
end | |
else | |
false | |
end | |
end | |
def json_data(data) | |
content_type "application/json" if is_ajax_request? | |
{:data => data}.to_json | |
end | |
def json_errors(*objs) | |
content_type "application/json" if is_ajax_request? | |
errors = {} | |
objs.each do |o| | |
if o.respond_to? :errors | |
errors[o.class.name.snake_case] = o.errors.to_hash | |
else | |
unless errors['general'] | |
errors['general'] = [] | |
end | |
errors['general'].push(*o) | |
end | |
end | |
{:errors => errors}.to_json | |
end | |
def json_redirect(url) | |
content_type "application/json" if is_ajax_request? | |
{:redirect => url}.to_json | |
end |
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require 'sinatra' | |
require 'helpers' | |
require 'models' | |
post '/settings_image' do | |
require_login | |
@user = session_user | |
@user.image = params['user']['image'] | |
if @user.save | |
@user.reload | |
json_data({ | |
:image => @user.image.url, | |
:image_icon40 => @user.image.icon40.url, | |
:image_icon60 => @user.image.icon60.url | |
}) | |
else | |
json_errors("Failed",@user) | |
end | |
end |
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class UserImageUploader < CarrierWave::Uploader::Base | |
include CarrierWave::MiniMagick | |
if settings.environment == :production | |
storage :s3 | |
else | |
storage :file | |
end | |
def store_dir | |
"uploads/users/#{model.id}/image" | |
end | |
def extensions_white_list | |
%w(jpg jpeg gif png) | |
end | |
process :resize_to_limit => [720,720] | |
version :icon40 do | |
process :resize_to_fill => [40,40] | |
end | |
version :icon60 do | |
process :resize_to_fill => [60,60] | |
end | |
version :profile do | |
process :resize_to_limit => [180,180] | |
end | |
end | |
class User | |
include DataMapper::Resource | |
property :id, Serial | |
timestamps :at, :on | |
property :username, String | |
property :image, String, :auto_validation => false | |
mount_uploader :image, UserImageUploader | |
end |
I would like to see the upload form also. What do you send to the mount_uploader :image property?? Sinatra uses params[:name] and either [:filename] or [:tmpfile]
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Hey thanks for all this. Is it possible we can see the source for the form used to upload the image?