Geek Answers Handbook

Rails 4 backend and loading ios image

I want to create a download by uploading images via a web or ios application, I got an example https://github.com/defish16/ios-to-rails-images and I use Rails 4

Model:

class Test < ActiveRecord::Base
attr_accessor :avatar_data

has_attached_file :avatar, :styles => { medium: ["300x300>", :png], thumb: ["100x100>", :png]}
belongs_to :project
before_save :decode_avatar_data

def decode_avatar_data
# If avatar_data is present, it means that we were sent an image over
# JSON and it needs to be decoded.  After decoding, the image is processed
# normally via Paperclip.
 if self.avatar_data.present?
    data = StringIO.new(Base64.decode64(self.avatar_data))
    data.class.class_eval {attr_accessor :original_filename, :content_type}
    data.original_filename = self.id.to_s + ".png"
    data.content_type = "image/png"

    self.avatar = data
 end
end

end

class Project < ActiveRecord::Base
has_many :avatars, class_name: 'Test', dependent: :destroy
accepts_nested_attributes_for :avatars
end

controller

class ProjectsController < ApplicationController

def create
@project = Project.new(project_params)

respond_to do |format|
  if @project.save
    format.html { redirect_to @project, notice: 'Project was successfully created.' }
    format.json { render action: 'show', status: :created, location: @project }
  else
    format.html { render action: 'new' }
    format.json { render json: @project.errors, status: :unprocessable_entity }
  end
end
end

def project_params
  params.require(:project).permit(:name, :description, avatars_attributes: [:avatar])
end

class TestsController < ApplicationController

def create
@test = Test.new(test_params)

respond_to do |format|
  if @test.save
    format.html { redirect_to @test, notice: 'Test was successfully created.' }
    format.json { render action: 'show', status: :created, location: @test }
  else
    format.html { render action: 'new' }
    format.json { render json: @test.errors, status: :unprocessable_entity }
  end
end
end

def test_params
  params.require(:test).permit(:project, :avatar_data, :avatar)
end

I can get the normal download via the internet, but when I try to download via the ios app, I cannot get the image

here is some of my magazines

when I used the ios application Parameters: {"avatars_attributes" => [{"avatar_data" => "/ 9j / 4AAQSkZJRgABAQAAAQABAAD / 4QBYR .......

: { "project" = > { "name" = > "test3", "description" = > "teset3", "avatars_attributes" = > { "0" = > { "avatar" = > #

? Cuz app avatars_attributes "", ? , ?

+4
1

URL- base64 , , , URL- base64, , , URL- ( html5 api, < IE10):

http://codepen.io/luckyyang/pen/BghJD

0

More articles:


All Articles