yoones

commit bcf370d689673031073ba2ac5588afe41cc315c9
Author: Younes SERRAJ <[email protected]>
Date:   Sun Apr 21 19:07:22 2019 +0200

    Allow ActiveStorage to generate variants of BMP images

diff --git a/activestorage/CHANGELOG.md b/activestorage/CHANGELOG.md
index 54fc949172..d524ecf7d6 100644
--- a/activestorage/CHANGELOG.md
+++ b/activestorage/CHANGELOG.md

yoones

commit 78260d5663702f153f6bae64073f9659de366946
Author: Younes SERRAJ <[email protected]>
Date:   Wed Apr 17 19:25:46 2019 +0200

    Mention more ActiveStorage hooks in Active Support Instrumentation guide [ci skip]

    Hooks added:
    - `service_download_chunk.active_storage`
    - `service_update_metadata.active_storage`
    - `preview.active_storage`

yoones

# Model
class Profile < ApplicationRecord
  has_one_attached :avatar
  accepts_nested_attributes_for :avatar_attachment, allow_destroy: true
end

# Controller
class ProfilesController < ApplicationController
  before_action :set_profile, only: [:show, :edit, :update, :destroy]

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some_profile.avatar.analyze

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some_profile.avatar.attached?

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params.require(:customer).permit(:some_attribute, contracts_attachments_attributes: [:id, :_destroy])

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# Assuming a model defined like so:
class Post < ApplicationRecord
  has_one_attached :image
end

# ...you can join against :image_attachment to select posts having attached images:
Post.joins(:image_attachment).where('published_at >= ?', Time.now)

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class MyModel < ActiveRecord::Base
  has_one_attached :image
  validate :image_size
  
  private
  
  def image_size
    errors.add :image, 'too big' if image.blob.byte_size > 4096
  end
end

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some_profile.avatar.attach(io: File.open('/path/to/file'), filename: 'avatar.png')

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<%= image_tag(record.attachment.representation(resize: '500x500') %>